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-/* Built at: Sun Oct 05 2014 18:48:22 GMT+0200 (CEST) */
-/**
- * @namespace JawsJS core functions.
- *
- * Jaws, a HTML5 canvas/javascript 2D game development framework
- *
- * Homepage: http://jawsjs.com/
- * Source: http://github.com/ippa/jaws/
- * Documentation: http://jawsjs.com/docs/
- *
- * Works with: Chrome 6.0+, Firefox 3.6+, 4+, IE 9+
- * License: LGPL - http://www.gnu.org/licenses/lgpl.html
- *
- * Jaws uses the "module pattern".
- * Adds 1 global, <b>jaws</b>, so plays nice with all other JS libs.
- *
- * Formating guide:
- * jaws.oneFunction()
- * jaws.one_variable = 1
- * new jaws.OneConstructor
- *
- * @property {int} mouse_x Mouse X position with respect to the canvas-element
- * @property {int} mouse_y Mouse Y position with respect to the canvas-element
- * @property {canvas} canvas The detected/created canvas-element used for the game
- * @property {context} context The detected/created canvas 2D-context, used for all draw-operations
- * @property {int} width Width of the canvas-element
- * @property {int} height Height of the canvas-element
- */
-var jaws = (function(jaws) {
-
- var title;
- var log_tag;
-
- /*
- * Placeholders for constructors in extras-dir. We define the constructors here to be able to give ppl better error-msgs.
- * When the correct from extras-dir is included, these will be overwritten.
- *
- */
- //jaws.Parallax = function() { throw("To use jaws.Parallax() you need to include src/extras/parallax.js") }
- //jaws.QuadTree = function() { throw("To use QuadTree() you need to include src/extras/quadtree.js") }
- //jaws.PixelMap = function() { throw("To use PixelMap() you need to include src/extras/pixel_map.js") }
- jaws.SpriteList = function() { throw("To use SpriteList() you need to include src/extras/sprite_list.js") }
- jaws.Audio = function() { throw("To use jaws.Audio() you need to include src/extras/audio.js") }
-
- /**
- * Returns or sets contents of title's innerHTML
- * @private
- * @param {type} value The new value to set the innerHTML of title
- * @returns {string} The innerHTML of title
- */
- jaws.title = function(value) {
-
- if (!jaws.isString(value)) {
- jaws.log.error("jaws.title: Passed in value is not a String.");
- return;
- }
-
- if (value) {
- return (title.innerHTML = value);
- }
- return title.innerHTML;
- };
-
- /**
- * Unpacks Jaws core-constructors into the global namespace.
- * If a global property is already taken, a warning will be written to jaws log.
- */
- jaws.unpack = function() {
- var make_global = ["Sprite", "SpriteList", "Animation", "SpriteSheet", "Parallax", "pressed", "QuadTree"];
-
- make_global.forEach(function(item) {
- if (window[item]) {
- jaws.log.warn("jaws.unpack: " + item + " already exists in global namespace.");
- }
- else {
- window[item] = jaws[item];
- }
- });
- };
-
- /**
- * Writes messages to either log_tag (if set) or console.log (if available)
- * @param {string} msg The string to write
- * @param {boolean} append If messages should be appended or not
- */
- jaws.log = function(msg, append) {
- if (!jaws.isString(msg)) {
- msg = JSON.stringify(msg);
- }
-
- if (jaws.log.on) {
- if (log_tag && jaws.log.use_log_element) {
- if (append) {
- log_tag.innerHTML += msg + "<br />";
- }
- else {
- log_tag.innerHTML = msg;
- }
- }
- if (console.log && jaws.log.use_console) {
- console.log("JawsJS: ", msg);
- }
- }
- };
-
- /**
- * If logging should take place or not
- * @type {boolean}
- */
- jaws.log.on = true;
-
- /**
- * If console.log should be used during log writing
- * @type {boolean}
- */
- jaws.log.use_console = false;
-
- /**
- * If log_tag should be used during log writing
- * @type {boolean}
- */
- jaws.log.use_log_element = true;
-
- /**
- * Write messages to console.warn (if it exists) or append current log
- * @param {string|object} msg String or object to record
- * @see jaws.log
- */
- jaws.log.warn = function(msg) {
- if (console.warn && jaws.log.use_console && jaws.log.on) {
- console.warn(msg);
- } else {
- jaws.log("[WARNING]: " + JSON.stringify(msg), true);
- }
- };
-
- /**
- * Write messages to console.error (if it exists) or append current log
- * @param {string|object} msg String or object to record
- * @see jaws.log
- */
- jaws.log.error = function(msg) {
- if (console.error && jaws.log.use_console && jaws.log.on) {
- console.error(msg);
- } else {
- jaws.log("[ERROR]: " + JSON.stringify(msg), true);
- }
- };
-
- /**
- * Write messages to console.info (if it exists) or append current log
- * @param {string|object} msg String or object to record
- * @see jaws.log
- */
- jaws.log.info = function(msg) {
- if (console.info && jaws.log.use_console && jaws.log.on) {
- console.info(msg);
- } else {
- jaws.log("[INFO]: " + JSON.stringify(msg), true);
- }
- };
-
- /**
- * Write messages to console.debug (if it exists) or append current log
- * @param {string|object} msg String or object to record
- * @see jaws.log
- */
- jaws.log.debug = function(msg) {
- if (console.debug && jaws.log.use_console && jaws.log.on) {
- console.debug(msg);
- } else {
- jaws.log("[DEBUG]: " + JSON.stringify(msg), true);
- }
- };
-
- /**
- * Clears the contents of log_tag element (if set) and console.log (if set)
- */
- jaws.log.clear = function() {
- if (log_tag) {
- log_tag.innerHTML = "";
- }
- if (console.clear) {
- console.clear();
- }
- };
-
- /**
- * Initalizes jaws{canvas, context, dom, width, height}
- * @private
- * @param {object} options Object-literal of constructor properties
- * @see jaws.url_parameters()
- */
- jaws.init = function(options) {
-
- /* Find <title> tag */
- title = document.getElementsByTagName('title')[0];
- jaws.url_parameters = jaws.getUrlParameters();
-
- jaws.canvas = document.getElementsByTagName('canvas')[0];
- if (!jaws.canvas) {
- jaws.dom = document.getElementById("canvas");
- }
-
- // Ordinary <canvas>, get context
- if (jaws.canvas) {
- jaws.context = jaws.canvas.getContext('2d');
- }
- else if (jaws.dom) {
- jaws.dom.style.position = "relative";
- }
- else {
- jaws.canvas = document.createElement("canvas");
- jaws.canvas.width = options.width;
- jaws.canvas.height = options.height;
- jaws.context = jaws.canvas.getContext('2d');
- document.body.appendChild(jaws.canvas);
- }
-
- /*
- * If debug=1 parameter is present in the URL, let's either find <div id="jaws-log"> or create the tag.
- * jaws.log(message) will use this div for debug/info output to the gamer or developer
- *
- */
- log_tag = document.getElementById('jaws-log');
- if (jaws.url_parameters["debug"]) {
- if (!log_tag) {
- log_tag = document.createElement("div");
- log_tag.id = "jaws-log";
- log_tag.style.cssText = "overflow: auto; color: #aaaaaa; width: 300px; height: 150px; margin: 40px auto 0px auto; padding: 5px; border: #444444 1px solid; clear: both; font: 10px verdana; text-align: left;";
- document.body.appendChild(log_tag);
- }
- }
-
-
- if(jaws.url_parameters["bust_cache"]) {
- jaws.log.info("Busting cache when loading assets")
- jaws.assets.bust_cache = true;
- }
-
- /* Let's scale sprites retro-style by default */
- if (jaws.context)
- jaws.useCrispScaling();
-
- jaws.width = jaws.canvas ? jaws.canvas.width : jaws.dom.offsetWidth;
- jaws.height = jaws.canvas ? jaws.canvas.height : jaws.dom.offsetHeight;
-
- jaws.mouse_x = 0;
- jaws.mouse_y = 0;
- window.addEventListener("mousemove", saveMousePosition);
- };
-
- /**
- * Use 'retro' crisp scaling when drawing sprites through the canvas API, this is the default
- */
- jaws.useCrispScaling = function() {
- jaws.context.imageSmoothingEnabled = false;
- jaws.context.webkitImageSmoothingEnabled = false;
- jaws.context.mozImageSmoothingEnabled = false;
- };
-
- /**
- * Use smooth antialiased scaling when drawing sprites through the canvas API
- */
- jaws.useSmoothScaling = function() {
- jaws.context.imageSmoothingEnabled = true;
- jaws.context.webkitImageSmoothingEnabled = true;
- jaws.context.mozImageSmoothingEnabled = true;
- };
-
- /**
- * Keeps updated mouse coordinates in jaws.mouse_x and jaws.mouse_y
- * This is called each time event "mousemove" triggers.
- * @private
- * @param {EventObject} e The EventObject populated by the calling event
- */
- function saveMousePosition(e) {
- jaws.mouse_x = (e.pageX || e.clientX);
- jaws.mouse_y = (e.pageY || e.clientY);
-
- var game_area = jaws.canvas ? jaws.canvas : jaws.dom;
- jaws.mouse_x -= game_area.offsetLeft;
- jaws.mouse_y -= game_area.offsetTop;
- }
-
- /**
- * 1) Calls jaws.init(), detects or creats a canvas, and sets up the 2D context (jaws.canvas and jaws.context).
- * 2) Pre-loads all defined assets with jaws.assets.loadAll().
- * 3) Creates an instance of game_state and calls setup() on that instance.
- * 4) Loops calls to update() and draw() with given FPS until game ends or another game state is activated.
- * @param {function} game_state The game state function to be started
- * @param {object} options Object-literal of game loop properties
- * @param {object} game_state_setup_options Object-literal of game state properties and values
- * @see jaws.init()
- * @see jaws.setupInput()
- * @see jaws.assets.loadAll()
- * @see jaws.switchGameState()
- * @example
- *
- * jaws.start(MyGame) // Start game state Game() with default options
- * jaws.start(MyGame, {fps: 30}) // Start game state Game() with options, in this case jaws will run your game with 30 frames per second.
- * jaws.start(window) // Use global functions setup(), update() and draw() if available. Not the recommended way but useful for testing and mini-games.
- *
- */
- jaws.start = function(game_state, options, game_state_setup_options) {
- if (!options) options = {};
-
- var fps = options.fps || 60;
- if (options.loading_screen === undefined) options.loading_screen = true;
- if (!options.width) options.width = 500;
- if (!options.height) options.height = 300;
-
- /* Takes care of finding/creating canvas-element and debug-div */
- jaws.init(options);
-
- if (!jaws.isFunction(game_state) && !jaws.isObject(game_state)) {
- jaws.log.error("jaws.start: Passed in GameState is niether function or object");
- return;
- }
- if (!jaws.isObject(game_state_setup_options) && game_state_setup_options !== undefined) {
- jaws.log.error("jaws.start: The setup options for the game state is not an object.");
- return;
- }
-
- if (options.loading_screen) {
- jaws.assets.displayProgress(0);
- }
-
- jaws.log.info("setupInput()", true);
- jaws.setupInput();
-
- /* Callback for when one single asset has been loaded */
- function assetProgress(src, percent_done) {
- jaws.log.info(percent_done + "%: " + src, true);
- if (options.loading_screen) {
- jaws.assets.displayProgress(percent_done);
- }
- }
-
- /* Callback for when an asset can't be loaded*/
- function assetError(src, percent_done) {
- jaws.log.info(percent_done + "%: Error loading asset " + src, true);
- }
-
- /* Callback for when all assets are loaded */
- function assetsLoaded() {
- jaws.log.info("all assets loaded", true);
- jaws.switchGameState(game_state || window, {fps: fps}, game_state_setup_options);
- }
-
- jaws.log.info("assets.loadAll()", true);
- if (jaws.assets.length() > 0) {
- jaws.assets.loadAll({onprogress: assetProgress, onerror: assetError, onload: assetsLoaded});
- }
- else {
- assetsLoaded();
- }
- };
-
- /**
- * Switchs to a new active game state and saves previous game state in jaws.previous_game_state
- * @param {function} game_state The game state function to start
- * @param {object} options The object-literal properties to pass to the new game loop
- * @param {object} game_state_setup_options The object-literal properties to pass to starting game state
- * @example
- *
- * function MenuState() {
- * this.setup = function() { ... }
- * this.draw = function() { ... }
- * this.update = function() {
- * if(pressed("enter")) jaws.switchGameState(GameState); // Start game when Enter is pressed
- * }
- * }
- *
- * function GameState() {
- * this.setup = function() { ... }
- * this.update = function() { ... }
- * this.draw = function() { ... }
- * }
- *
- * jaws.start(MenuState)
- *
- */
- jaws.switchGameState = function(game_state, options, game_state_setup_options) {
- if(options === undefined) options = {};
-
- if(jaws.isFunction(game_state)) {
- game_state = new game_state;
- }
- if(!jaws.isObject(game_state)) {
- jaws.log.error("jaws.switchGameState: Passed in GameState should be a Function or an Object.");
- return;
- }
-
- var fps = (options && options.fps) || (jaws.game_loop && jaws.game_loop.fps) || 60;
- var setup = options.setup
-
- jaws.game_loop && jaws.game_loop.stop();
- jaws.clearKeyCallbacks();
-
- jaws.previous_game_state = jaws.game_state;
- jaws.game_state = game_state;
- jaws.game_loop = new jaws.GameLoop(game_state, {fps: fps, setup: setup}, game_state_setup_options);
- jaws.game_loop.start();
- };
-
- /**
- * Creates a new HTMLCanvasElement from a HTMLImageElement
- * @param {HTMLImageElement} image The HTMLImageElement to convert to a HTMLCanvasElement
- * @returns {HTMLCanvasElement} A HTMLCanvasElement with drawn HTMLImageElement content
- */
- jaws.imageToCanvas = function(image) {
- if (jaws.isCanvas(image)) return image;
-
- if (!jaws.isImage(image)) {
- jaws.log.error("jaws.imageToCanvas: Passed in object is not an Image.");
- return;
- }
-
- var canvas = document.createElement("canvas");
- canvas.src = image.src;
- canvas.width = image.width;
- canvas.height = image.height;
-
- var context = canvas.getContext("2d");
- context.drawImage(image, 0, 0, image.width, image.height);
- return canvas;
- };
-
- /**
- * Returns object as an array
- * @param {object} obj An array or object
- * @returns {array} Either an array or the object as an array
- * @example
- *
- * jaws.forceArray(1) // --> [1]
- * jaws.forceArray([1,2]) // --> [1,2]
- */
- jaws.forceArray = function(obj) {
- return Array.isArray(obj) ? obj : [obj];
- };
-
- /**
- * Clears screen (the canvas-element) through context.clearRect()
- */
- jaws.clear = function() {
- jaws.context.clearRect(0, 0, jaws.width, jaws.height);
- };
-
- /** Fills the screen with given fill_style */
- jaws.fill = function(fill_style) {
- jaws.context.fillStyle = fill_style;
- jaws.context.fillRect(0, 0, jaws.width, jaws.height);
- };
-
-
- /**
- * calls draw() on everything you throw on it. Give it arrays, argumentlists, arrays of arrays.
- *
- */
- jaws.draw = function() {
- var list = arguments;
- if(list.length == 1 && jaws.isArray(list[0])) list = list[0];
- for(var i=0; i < list.length; i++) {
- if(jaws.isArray(list[i])) jaws.draw(list[i]);
- else if(list[i].draw) list[i].draw();
- }
- }
-
- /**
- * calls update() on everything you throw on it. Give it arrays, argumentlists, arrays of arrays.
- *
- */
- jaws.update = function() {
- var list = arguments;
- if(list.length == 1 && jaws.isArray(list[0])) list = list[0];
- for(var i=0; i < list.length; i++) {
- if(jaws.isArray(list[i])) jaws.update(list[i]);
- else if(list[i].update) list[i].update();
- }
- }
-
- /**
- * Tests if object is an image or not
- * @param {object} obj An Image or image-like object
- * @returns {boolean} If object's prototype is "HTMLImageElement"
- */
- jaws.isImage = function(obj) {
- return Object.prototype.toString.call(obj) === "[object HTMLImageElement]";
- };
-
- /**
- * Tests if object is a Canvas object
- * @param {type} obj A canvas or canvas-like object
- * @returns {boolean} If object's prototype is "HTMLCanvasElement"
- */
- jaws.isCanvas = function(obj) {
- return Object.prototype.toString.call(obj) === "[object HTMLCanvasElement]";
- };
-
- /**
- * Tests if an object is either a canvas or an image object
- * @param {object} obj A canvas or canva-like object
- * @returns {boolean} If object isImage or isCanvas
- */
- jaws.isDrawable = function(obj) {
- return jaws.isImage(obj) || jaws.isCanvas(obj);
- };
-
- /**
- * Tests if an object is a string or not
- * @param {object} obj A string or string-like object
- * @returns {boolean} The result of typeof and constructor testing
- */
- jaws.isString = function(obj) {
- return typeof obj === "string" || (typeof obj === "object" && obj.constructor === String);
- };
-
- /**
- * Tests if an object is a number or not
- * @param {number} n A number or number-like value
- * @returns {boolean} If n passed isNaN() and isFinite()
- */
- jaws.isNumber = function(n) {
- return !isNaN(parseFloat(n)) && isFinite(n);
- };
-
- /**
- * Tests if an object is an Array or not
- * @param {object} obj An array or array-like object
- * @returns {boolean} If object's constructor is "Array"
- */
- jaws.isArray = function(obj) {
- if (!obj)
- return false;
- return !(obj.constructor.toString().indexOf("Array") === -1);
- };
-
- /**
- * Tests if an object is an Object or not
- * @param {object} value An object or object-like enitity
- * @returns {boolean} If object is not null and typeof 'object'
- */
- jaws.isObject = function(value) {
- return value !== null && typeof value === 'object';
- };
-
- /**
- * Tests if an object is a function or not
- * @param {object} obj A function or function-like object
- * @returns {boolean} If the prototype of the object is "Function"
- */
- jaws.isFunction = function(obj) {
- return (Object.prototype.toString.call(obj) === "[object Function]");
- };
-
- /**
- * Tests if an object is a regular expression or not
- * @param {object} obj A /regexp/-object
- * @returns {boolean} If the object is an instance of RegExp
- */
- jaws.isRegExp = function(obj) {
- return (obj instanceof RegExp);
- };
-
-
- /**
- * Tests if an object is within drawing canvas (jaws.width and jaws.height)
- * @param {object} item An object with both x and y properties
- * @returns {boolean} If the item's x and y are less than 0 or more than jaws.width or jaws.height
- */
- jaws.isOutsideCanvas = function(item) {
- if (item.x && item.y) {
- return (item.x < 0 || item.y < 0 || item.x > jaws.width || item.y > jaws.height);
- }
- };
-
- /**
- * Sets x and y properties to 0 (if less than), or jaws.width or jaws.height (if greater than)
- * @param {object} item An object with x and y properties
- */
- jaws.forceInsideCanvas = function(item) {
- if (item.x && item.y) {
- if (item.x < 0) {
- item.x = 0;
- }
- if (item.x > jaws.width) {
- item.x = jaws.width;
- }
- if (item.y < 0) {
- item.y = 0;
- }
- if (item.y > jaws.height) {
- item.y = jaws.height;
- }
- }
- };
-
- /**
- * Parses current window.location for URL parameters and values
- * @returns {array} Hash of url-parameters and their values
- * @example
- * // Given the current URL is <b>http://test.com/?debug=1&foo=bar</b>
- * jaws.getUrlParameters() // --> {debug: 1, foo: bar}
- */
- jaws.getUrlParameters = function() {
- var vars = [], hash;
- var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
- for (var i = 0; i < hashes.length; i++) {
- hash = hashes[i].split('=');
- vars.push(hash[0]);
- vars[hash[0]] = hash[1];
- }
- return vars;
- };
-
- /**
- * Compares an object's default properties against those sent to its constructor
- * @param {object} object The object to compare and assign new values
- * @param {object} options Object-literal of constructor properties and new values
- * @param {object} defaults Object-literal of properties and their default values
- */
- jaws.parseOptions = function(object, options, defaults) {
- object["options"] = options;
-
- for (var option in options) {
- if (defaults[option] === undefined) {
- jaws.log.warn("jaws.parseOptions: Unsupported property " + option + "for " + object.constructor);
- }
- }
- for (var option in defaults) {
- if( jaws.isFunction(defaults[option]) ) defaults[option] = defaults[option]();
- object[option] = (options[option] !== undefined) ? options[option] : jaws.clone(defaults[option]);
- }
- };
-
- /**
- * Returns a shallow copy of an array or object
- * @param {array|object} value The array or object to clone
- * @returns {array|object} A copy of an array of object
- */
- jaws.clone = function(value) {
- if (jaws.isArray(value))
- return value.slice(0);
- if (jaws.isObject(value))
- return JSON.parse(JSON.stringify(value));
- return value;
- };
-
- /*
- * Converts image to canvas 2D context. Then you can draw on it :).
- */
- jaws.imageToCanvasContext = function(image) {
- var canvas = document.createElement("canvas")
- canvas.width = image.width
- canvas.height = image.height
-
- var context = canvas.getContext("2d")
- if(jaws.context) {
- context.imageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
- context.webkitImageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
- context.mozImageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
- }
-
- context.drawImage(image, 0, 0, canvas.width, canvas.height)
- return context
- }
-
- /**
- * scale 'image' by factor 'factor'.
- * Scaling is done using nearest-neighbor ( retro-blocky-style ).
- * Returns a canvas.
- */
- jaws.retroScaleImage = function(image, factor) {
- var canvas = jaws.isImage(image) ? jaws.imageToCanvas(image) : image
- var context = canvas.getContext("2d")
- var data = context.getImageData(0,0,canvas.width,canvas.height).data
-
- // Create new canvas to return
- var canvas2 = document.createElement("canvas")
- canvas2.width = image.width * factor
- canvas2.height = image.height * factor
- var context2 = canvas2.getContext("2d")
- var to_data = context2.createImageData(canvas2.width, canvas2.height)
-
- var w2 = to_data.width
- var h2 = to_data.height
- for (var y=0; y < h2; y += 1) {
- var y2 = Math.floor(y / factor)
- var y_as_x = y * to_data.width
- var y2_as_x = y2 * image.width
-
- for (var x=0; x < w2; x += 1) {
- var x2 = Math.floor(x / factor)
- var y_dst = (y_as_x + x) * 4
- var y_src = (y2_as_x + x2) * 4
-
- to_data.data[y_dst] = data[y_src];
- to_data.data[y_dst+1] = data[y_src+1];
- to_data.data[y_dst+2] = data[y_src+2];
- to_data.data[y_dst+3] = data[y_src+3];
- }
- }
-
- context2.putImageData(to_data, 0, 0)
-
- return canvas2
- }
-
- return jaws;
-})(jaws || {});
-
-// Support CommonJS require()
-if(typeof module !== "undefined" && ('exports' in module)) { module.exports = jaws }
-
-var jaws = (function(jaws) {
-
- var pressed_keys = {}
- var previously_pressed_keys = {}
- var keyCodes = {"0":"48","1":"49","2":"50","3":"51","4":"52","5":"53","6":"54","7":"55","8":"56","9":"57","backspace":"8","tab":"9","enter":"13","shift":"16","ctrl":"17","alt":"18","pause":"19","caps_lock":"20","esc":"27","space":"32","page_up":"33","page_down":"34","end":"35","home":"36","left":"37","up":"38","right":"39","down":"40","insert":"45","delete":"46","a":"65","b":"66","c":"67","d":"68","e":"69","f":"70","g":"71","h":"72","i":"73","j":"74","k":"75","l":"76","m":"77","n":"78","o":"79","p":"80","q":"81","r":"82","s":"83","t":"84","u":"85","v":"86","w":"87","x":"88","y":"89","z":"90","windows_left":"91","windows_right":"92","select":"93","numpad0":"96","numpad1":"97","numpad2":"98","numpad3":"99","numpad4":"100","numpad5":"101","numpad6":"102","numpad7":"103","numpad8":"104","numpad9":"105","asterisk":"106","plus":"107","minus":"109","decimal_point":"110","divide":"111","f1":"112","f2":"113","f3":"114","f4":"115","f5":"116","f6":"117","f7":"118","f8":"119","f9":"120","numlock":"144","scrollock":"145","semicolon":"186","equals":"187","comma":"188","dash":"189","period":"190","slash":"191","grave_accent":"192","open_bracket":"219","backslash":"220","close_bracket":"221","single_quote":"222"};
- var keycodeNames = {"8":"backspace","9":"tab","13":"enter","16":"shift","17":"ctrl","18":"alt","19":"pause","20":"caps_lock","27":"esc","32":"space","33":"page_up","34":"page_down","35":"end","36":"home","37":"left","38":"up","39":"right","40":"down","45":"insert","46":"delete","48":"0","49":"1","50":"2","51":"3","52":"4","53":"5","54":"6","55":"7","56":"8","57":"9","65":"a","66":"b","67":"c","68":"d","69":"e","70":"f","71":"g","72":"h","73":"i","74":"j","75":"k","76":"l","77":"m","78":"n","79":"o","80":"p","81":"q","82":"r","83":"s","84":"t","85":"u","86":"v","87":"w","88":"x","89":"y","90":"z","91":"windows_left","92":"windows_right","93":"select","96":"numpad0","97":"numpad1","98":"numpad2","99":"numpad3","100":"numpad4","101":"numpad5","102":"numpad6","103":"numpad7","104":"numpad8","105":"numpad9","106":"asterisk","107":"plus","109":"minus","110":"decimal_point","111":"divide","112":"f1","113":"f2","114":"f3","115":"f4","116":"f5","117":"f6","118":"f7","119":"f8","120":"f9","144":"numlock","145":"scrollock","186":"semicolon","187":"equals","188":"comma","189":"dash","190":"period","191":"slash","192":"grave_accent","219":"open_bracket","220":"backslash","221":"close_bracket","222":"single_quote"};
- var on_keydown_callbacks = []
- var on_keyup_callbacks = []
- var mousebuttoncode_to_string = []
- var ie_mousebuttoncode_to_string = []
- var prevent_default_keys = []
-
-/** @private
- * Map all javascript keycodes to easy-to-remember letters/words
- */
-jaws.setupInput = function() {
- var m = []
-
- m[0] = "left_mouse_button"
- m[1] = "center_mouse_button"
- m[2] = "right_mouse_button"
-
- var ie_m = [];
- ie_m[1] = "left_mouse_button";
- ie_m[2] = "right_mouse_button";
- ie_m[4] = "center_mouse_button";
-
- mousebuttoncode_to_string = m
- ie_mousebuttoncode_to_string = ie_m;
-
- window.addEventListener("keydown", handleKeyDown);
- window.addEventListener("keyup", handleKeyUp);
-
- var jawswindow = jaws.canvas || jaws.dom
- jawswindow.addEventListener("mousedown", handleMouseDown, false);
- jawswindow.addEventListener("mouseup", handleMouseUp, false);
- jawswindow.addEventListener("touchstart", handleTouchStart, false);
- jawswindow.addEventListener("touchend", handleTouchEnd, false);
-
- window.addEventListener("blur", resetPressedKeys, false);
-
- // this turns off the right click context menu which screws up the mouseup event for button 2
- document.oncontextmenu = function() {return false};
-}
-
-/** @private
- * Reset input-hash. Called when game is blurred so a key-controlled player doesn't keep on moving when the game isn't focused.
- */
-function resetPressedKeys(e) {
- for (var x in pressed_keys) {
- delete pressed_keys[x];
- }
-}
-
-/** @private
- * handle event "onkeydown" by remembering what key was pressed
- */
-function handleKeyUp(e) {
- /* event = (e) ? e : window.event; */ /* Seems unnecessary because e is assumed to be non-null later */
- var code = code = e.keyCode;
- pressed_keys[code] = false;
- if (on_keyup_callbacks[code]) {
- on_keyup_callbacks[code](code)
- e.preventDefault()
- } else if (prevent_default_keys[code]) {
- e.preventDefault();
- }
-}
-
-/** @private
- * handle event "onkeydown" by remembering what key was un-pressed
- */
-function handleKeyDown(e) {
- /* event = (e) ? e : window.event; */ /* Seems unnecessary because e is assumed to be non-null later */
- var code = code = e.keyCode;
- pressed_keys[code] = true;
- if (on_keydown_callbacks[code]) {
- on_keydown_callbacks[code](code);
- e.preventDefault();
- } else if (prevent_default_keys[code]) {
- e.preventDefault();
- }
-}
-/** @private
- * handle event "onmousedown" by remembering what button was pressed
- */
-function handleMouseDown(e) {
- /* event = (e) ? e : window.event; */ /* Seems unnecessary because e is assumed to be non-null later */
- var human_name = mousebuttoncode_to_string[e.button]; // 0 1 2
- if (navigator.appName == "Microsoft Internet Explorer"){
- human_name = ie_mousebuttoncode_to_string[e.button];
- }
- pressed_keys[human_name] = true
- if(on_keydown_callbacks[human_name]) {
- on_keydown_callbacks[human_name](human_name);
- e.preventDefault();
- }
-}
-
-
-/** @private
- * handle event "onmouseup" by remembering what button was un-pressed
- */
-function handleMouseUp(e) {
- /* event = (e) ? e : window.event; */ /* Seems unnecessary because e is assumed to be non-null later */
- var human_name = mousebuttoncode_to_string[e.button]
-
- if (navigator.appName == "Microsoft Internet Explorer"){
- human_name = ie_mousebuttoncode_to_string[e.button];
- }
- pressed_keys[human_name] = false;
- if(on_keyup_callbacks[human_name]) {
- on_keyup_callbacks[human_name](human_name);
- e.preventDefault();
- }
-}
-
-/** @private
- * handle event "touchstart" by remembering what button was pressed
- */
-function handleTouchStart(e) {
- /* event = (e) ? e : window.event; */ /* Seems unnecessary because e is assumed to be non-null later */
- pressed_keys["left_mouse_button"] = true
- jaws.mouse_x = e.touches[0].pageX - jaws.canvas.offsetLeft;
- jaws.mouse_y = e.touches[0].pageY - jaws.canvas.offsetTop;
- //e.preventDefault()
-}
-
-/** @private
- * handle event "touchend" by remembering what button was pressed
- */
-function handleTouchEnd(e) {
- pressed_keys["left_mouse_button"] = false;
- jaws.mouse_x = undefined;
- jaws.mouse_y = undefined;
-}
-
-/**
- * Prevents default browseraction for given keys.
- * @example
- * jaws.preventDefaultKeys( ["down"] ) // Stop down-arrow-key from scrolling page down
- */
-jaws.preventDefaultKeys = function(array_of_strings) {
- var list = arguments;
- for(var i=0; i < list.length; i++) {
- prevent_default_keys[list[i]] = true;
- }
-}
-
-/**
- * Array: If a key is currently pressed, the value associated to the key is true, otherwise false or not present.
- */
-jaws.pressed = pressed_keys;
-
-/**
- * Mapping key names to codes, and vice-versa
- */
-jaws.keyCodes = keyCodes;
-jaws.keycodeNames = keycodeNames;
-
-/**
- * sets up a callback for a key (or array of keys) to call when it's pressed down
- *
- * @example
- * // call goLeft() when left arrow key is pressed
- * jaws.on_keypress(jaws.keyCode("left"), goLeft)
- *
- * // call fireWeapon() when SPACE or CTRL is pressed
- * jaws.on_keypress([jaws.keyCodes["space"],jaws.keyCodes["ctrl"]], fireWeapon)
- */
-jaws.on_keydown = function(key, callback) {
- if (jaws.isArray(key)) {
- for (var i=0; key[i]; i++) {
- on_keydown_callbacks[key[i]] = callback;
- }
- } else {
- on_keydown_callbacks[key] = callback;
- }
-}
-
-/**
- * sets up a callback when a key (or array of keys) to call when it's released
- */
-jaws.on_keyup = function(key, callback) {
- if (jaws.isArray(key)) {
- for (var i=0; key[i]; i++) {
- on_keyup_callbacks[key[i]] = callback;
- }
- } else {
- on_keyup_callbacks[key] = callback;
- }
-}
-
-/** @private
- * Clean up all callbacks set by on_keydown / on_keyup
- */
-jaws.clearKeyCallbacks = function() {
- on_keyup_callbacks = [];
- on_keydown_callbacks = [];
-}
-
-return jaws;
-})(jaws || {});
-
-var jaws = (function(jaws) {
- /**
- * @fileOverview jaws.assets properties and functions
- *
- * Loads and processes image, sound, video, and json assets
- * (Used internally by JawsJS to create <b>jaws.assets</b>)
- *
- * @class Jaws.Assets
- * @constructor
- * @property {boolean} bust_cache Add a random argument-string to assets-urls when loading to bypass any cache
- * @property {boolean} fuchia_to_transparent Convert the color fuchia to transparent when loading .bmp-files
- * @property {boolean} image_to_canvas Convert all image assets to canvas internally
- * @property {string} root Rootdir from where all assets are loaded
- * @property {array} file_type Listing of file postfixes and their associated types
- * @property {array} can_play Listing of postfixes and (during runtime) populated booleans
- */
- jaws.Assets = function Assets() {
- if (!(this instanceof arguments.callee))
- return new arguments.callee();
-
- var self = this;
-
- self.loaded = [];
- self.loading = [];
- self.src_list = [];
- self.data = [];
-
- self.bust_cache = false;
- self.image_to_canvas = true;
- self.fuchia_to_transparent = true;
- self.root = "";
-
- self.file_type = {};
- self.file_type["json"] = "json";
- self.file_type["wav"] = "audio";
- self.file_type["mp3"] = "audio";
- self.file_type["ogg"] = "audio";
- self.file_type['m4a'] = "audio";
- self.file_type['weba'] = "audio";
- self.file_type['aac'] = "audio";
- self.file_type['mka'] = "audio";
- self.file_type['flac'] = "audio";
- self.file_type["png"] = "image";
- self.file_type["jpg"] = "image";
- self.file_type["jpeg"] = "image";
- self.file_type["gif"] = "image";
- self.file_type["bmp"] = "image";
- self.file_type["tiff"] = "image";
- self.file_type['mp4'] = "video";
- self.file_type['webm'] = "video";
- self.file_type['ogv'] = "video";
- self.file_type['mkv'] = "video";
-
- self.can_play = {};
-
- try {
- var audioTest = new Audio();
- self.can_play["wav"] = !!audioTest.canPlayType('audio/wav; codecs="1"').replace(/^no$/, '');
- self.can_play["ogg"] = !!audioTest.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, '');
- self.can_play["mp3"] = !!audioTest.canPlayType('audio/mpeg;').replace(/^no$/, '');
- self.can_play["m4a"] = !!(audioTest.canPlayType('audio/x-m4a;') || audioTest.canPlayType('audio/aac;')).replace(/^no$/, '');
- self.can_play["weba"] = !!audioTest.canPlayType('audio/webm; codecs="vorbis"').replace(/^no$/, '');
- self.can_play["aac"] = !!audioTest.canPlayType('audio/aac;').replace(/^no$/, '');
- self.can_play["mka"] = !!audioTest.canPlayType('audio/x-matroska;').replace(/^no$/, '');
- self.can_play["flac"] = !!audioTest.canPlayType('audio/x-flac;').replace(/^no$/, '');
- }
- catch(e) {
- }
-
- try {
- var videoTest = document.createElement('video');
- self.can_play["mp4"] = !!videoTest.canPlayType('video/mp4;').replace(/^no$/, '');
- self.can_play["webm"] = !!videoTest.canPlayType('video/webm; codecs="vorbis"').replace(/^no$/, '');
- self.can_play["ogv"] = !!videoTest.canPlayType('video/ogg; codecs="vorbis"').replace(/^no$/, '');
- self.can_play["mkv"] = !!videoTest.canPlayType('video/x-matroska;').replace(/^no$/, '');
- }
- catch(e) {
- }
-
- /**
- * Returns the length of the resource list
- * @public
- * @returns {number} The length of the resource list
- */
- self.length = function() {
- return self.src_list.length;
- };
-
- /**
- * Set root prefix-path to all assets
- *
- * @example
- * jaws.assets.setRoot("music/").add(["music.mp3", "music.ogg"]).loadAll()
- *
- * @public
- * @param {string} path-prefix for all following assets
- * @returns {object} self
- */
- self.setRoot = function(path) {
- self.root = path
- return self
- }
-
- /**
- * Get one or more resources from their URLs. Supports simple wildcard (you can end a string with "*").
- *
- * @example
- * jaws.assets.add(["song.mp3", "song.ogg"])
- * jaws.assets.get("song.*") // -> Will return song.ogg in firefox and song.mp3 in IE
- *
- * @public
- * @param {string|array} src The resource(s) to retrieve
- * @returns {array|object} Array or single resource if found in cache. Undefined otherwise.
- */
- self.get = function(src) {
- if (jaws.isArray(src)) {
- return src.map(function(i) {
- return self.data[i];
- });
- }
- else if (jaws.isString(src)) {
- // Wildcard? song.*, match against asset-srcs, make sure it's loaded and return content of first match.
- if(src[src.length-1] === "*") {
- var needle = src.replace("*", "")
- for(var i=0; i < self.src_list.length; i++) {
- if(self.src_list[i].indexOf(needle) == 0 && self.data[self.src_list[i]])
- return self.data[self.src_list[i]];
- }
- }
-
- // TODO: self.loaded[src] is false for supported files for some odd reason.
- if (self.data[src]) { return self.data[src]; }
- else { jaws.log.warn("No such asset: " + src, true); }
- }
- else {
- jaws.log.error("jaws.get: Neither String nor Array. Incorrect URL resource " + src);
- return;
- }
- };
-
- /**
- * Returns if specified resource is currently loading or not
- * @public
- * @param {string} src Resource URL
- * @return {boolean|undefined} If resource is currently loading. Otherwise, undefined.
- */
- self.isLoading = function(src) {
- if (jaws.isString(src)) {
- return self.loading[src];
- } else {
- jaws.log.error("jaws.isLoading: Argument not a String with " + src);
- }
- };
-
- /**
- * Returns if specified resource is loaded or not
- * @param src Source URL
- * @return {boolean|undefined} If specified resource is loaded or not. Otherwise, undefined.
- */
- self.isLoaded = function(src) {
- if (jaws.isString(src)) {
- return self.loaded[src];
- } else {
- jaws.log.error("jaws.isLoaded: Argument not a String with " + src);
- }
- };
-
- /**
- * Returns lowercase postfix of specified resource
- * @public
- * @param {string} src Resource URL
- * @returns {string} Lowercase postfix of resource
- */
- self.getPostfix = function(src) {
- if (jaws.isString(src)) {
- return src.toLowerCase().match(/.+\.([^?]+)(\?|$)/)[1];
- } else {
- jaws.log.error("jaws.assets.getPostfix: Argument not a String with " + src);
- }
- };
-
- /**
- * Determine type of file (Image, Audio, or Video) from its postfix
- * @private
- * @param {string} src Resource URL
- * @returns {string} Matching type {Image, Audio, Video} or the postfix itself
- */
- function getType(src) {
- if (jaws.isString(src)) {
- var postfix = self.getPostfix(src);
- return (self.file_type[postfix] ? self.file_type[postfix] : postfix);
- } else {
- jaws.log.error("jaws.assets.getType: Argument not a String with " + src);
- }
- }
-
- /**
- * Add URL(s) to asset listing for later loading
- * @public
- * @param {string|array|arguments} src The resource URL(s) to add to the asset listing
- * @example
- * jaws.assets.add("player.png")
- * jaws.assets.add(["media/bullet1.png", "media/bullet2.png"])
- * jaws.assets.add("foo.png", "bar.png")
- * jaws.assets.loadAll({onload: start_game})
- */
- self.add = function(src) {
- var list = arguments;
- if(list.length == 1 && jaws.isArray(list[0])) list = list[0];
-
- for(var i=0; i < list.length; i++) {
- if(jaws.isArray(list[i])) {
- self.add(list[i]);
- }
- else {
- if(jaws.isString(list[i])) { self.src_list.push(list[i]) }
- else { jaws.log.error("jaws.assets.add: Neither String nor Array. Incorrect URL resource " + src) }
- }
- }
-
- return self;
- };
-
- /**
- * Iterate through the list of resource URL(s) and load each in turn.
- * @public
- * @param {Object} options Object-literal of callback functions
- * @config {function} [options.onprogress] The function to be called on progress (when one assets of many is loaded)
- * @config {function} [options.onerror] The function to be called if an error occurs
- * @config {function} [options.onload] The function to be called when finished
- */
- self.loadAll = function(options) {
- self.load_count = 0;
- self.error_count = 0;
-
- if (options.onprogress && jaws.isFunction(options.onprogress))
- self.onprogress = options.onprogress;
-
- if (options.onerror && jaws.isFunction(options.onerror))
- self.onerror = options.onerror;
-
- if (options.onload && jaws.isFunction(options.onload))
- self.onload = options.onload;
-
- self.src_list.forEach(function(item) {
- self.load(item);
- });
-
- return self;
- };
-
- /**
- * Loads a single resource from its given URL
- * Will attempt to match a resource to known MIME types.
- * If unknown, loads the file as a blob-object.
- *
- * @public
- * @param {string} src Resource URL
- * @param {Object} options Object-literal of callback functions
- * @config {function} [options.onload] Function to be called when assets has loaded
- * @config {function} [options.onerror] Function to be called if an error occurs
- * @example
- * jaws.load("media/foo.png")
- * jaws.load("http://place.tld/foo.png")
- */
- self.load = function(src, options) {
- if(!options) options = {};
-
- if (!jaws.isString(src)) {
- jaws.log.error("jaws.assets.load: Argument not a String with " + src);
- return;
- }
-
- var asset = {};
- var resolved_src = "";
- asset.src = src;
- asset.onload = options.onload;
- asset.onerror = options.onerror;
- self.loading[src] = true;
- var parser = RegExp('^((f|ht)tp(s)?:)?//');
- if (parser.test(src)) {
- resolved_src = asset.src;
- } else {
- resolved_src = self.root + asset.src;
- }
- if (self.bust_cache) {
- resolved_src += "?" + parseInt(Math.random() * 10000000);
- }
-
- var type = getType(asset.src);
- if (type === "image") {
- try {
- asset.image = new Image();
- asset.image.asset = asset;
- asset.image.addEventListener('load', assetLoaded);
- asset.image.addEventListener('error', assetError);
- asset.image.src = resolved_src;
- } catch (e) {
- jaws.log.error("Cannot load Image resource " + resolved_src +
- " (Message: " + e.message + ", Name: " + e.name + ")");
- }
- }
- else if (self.can_play[self.getPostfix(asset.src)]) {
- if (type === "audio") {
- try {
- asset.audio = new Audio();
- asset.audio.asset = asset;
- asset.audio.addEventListener('error', assetError);
- asset.audio.addEventListener('canplay', assetLoaded); // NOTE: assetLoaded can be called several times during loading.
- self.data[asset.src] = asset.audio;
- asset.audio.src = resolved_src;
- asset.audio.load();
- } catch (e) {
- jaws.log.error("Cannot load Audio resource " + resolved_src +
- " (Message: " + e.message + ", Name: " + e.name + ")");
- }
- }
- else if (type === "video") {
- try {
- asset.video = document.createElement('video');
- asset.video.asset = asset;
- self.data[asset.src] = asset.video;
- asset.video.setAttribute("style", "display:none;");
- asset.video.addEventListener('error', assetError);
- asset.video.addEventListener('canplay', assetLoaded);
- document.body.appendChild(asset.video);
- asset.video.src = resolved_src;
- asset.video.load();
- } catch (e) {
- jaws.log.error("Cannot load Video resource " + resolved_src +
- " (Message: " + e.message + ", Name: " + e.name + ")");
- }
- }
- }
-
- //Load everything else as raw blobs...
- else {
- // ... But don't load un-supported audio-files.
- if(type === "audio" && !self.can_play[self.getPostfix(asset.src)]) {
- assetSkipped(asset);
- return self;
- }
-
- try {
- var req = new XMLHttpRequest();
- req.asset = asset;
- req.onreadystatechange = assetLoaded;
- req.onerror = assetError;
- req.open('GET', resolved_src, true);
- if (type !== "json")
- req.responseType = "blob";
- req.send(null);
- } catch (e) {
- jaws.log.error("Cannot load " + resolved_src +
- " (Message: " + e.message + ", Name: " + e.name + ")");
- }
- }
-
- return self;
- };
-
- /**
- * Initial loading callback for all assets for parsing specific filetypes or
- * optionally converting images to canvas-objects.
- * @private
- * @param {EventObject} event The EventObject populated by the calling event
- * @see processCallbacks()
- */
- function assetLoaded(event) {
- var asset = this.asset;
- var src = asset.src;
- var filetype = getType(asset.src);
-
- try {
- if (filetype === "json") {
- if (this.readyState !== 4) {
- return;
- }
- self.data[asset.src] = JSON.parse(this.responseText);
- }
- else if (filetype === "image") {
- var new_image = self.image_to_canvas ? jaws.imageToCanvas(asset.image) : asset.image;
- if (self.fuchia_to_transparent && self.getPostfix(asset.src) === "bmp") {
- new_image = fuchiaToTransparent(new_image);
- }
- self.data[asset.src] = new_image;
- }
- else if (filetype === "audio" && self.can_play[self.getPostfix(asset.src)]) {
- self.data[asset.src] = asset.audio;
- }
- else if (filetype === "video" && self.can_play[self.getPostfix(asset.src)]) {
- self.data[asset.src] = asset.video;
- } else {
- self.data[asset.src] = this.response;
- }
- } catch (e) {
- jaws.log.error("Cannot process " + src +
- " (Message: " + e.message + ", Name: " + e.name + ")");
- self.data[asset.src] = null;
- }
-
- /*
- * Only increment load_count ONCE per unique asset.
- * This is needed cause assetLoaded-callback can in certain cases be called several for a single asset...
- * ..and not only Once when it's loaded.
- */
- if( !self.loaded[src]) self.load_count++;
-
- self.loaded[src] = true;
- self.loading[src] = false;
-
- processCallbacks(asset, true, event);
- }
-
- /**
- * Called when jaws asset-handler decides that an asset shouldn't be loaded
- * For example, an unsupported audio-format won't be loaded.
- *
- * @private
- */
- function assetSkipped(asset) {
- self.loaded[asset.src] = true;
- self.loading[asset.src] = false;
- self.load_count++;
- processCallbacks(asset, true);
- }
-
- /**
- * Increases the error count and calls processCallbacks with false flag set
- * @see processCallbacks()
- * @private
- * @param {EventObject} event The EventObject populated by the calling event
- */
- function assetError(event) {
- var asset = this.asset;
- self.error_count++;
- processCallbacks(asset, false, event);
- }
-
- /**
- * Processes (if set) the callbacks per resource
- * @private
- * @param {object} asset The asset to be processed
- * @param {boolean} ok If an error has occured with the asset loading
- * @param {EventObject} event The EventObject populated by the calling event
- * @see jaws.start() in core.js
- */
- function processCallbacks(asset, ok, event) {
- var percent = parseInt((self.load_count + self.error_count) / self.src_list.length * 100);
-
- if (ok) {
- if(self.onprogress)
- self.onprogress(asset.src, percent);
- if(asset.onprogress && event !== undefined)
- asset.onprogress(event);
- }
- else {
- if(self.onerror)
- self.onerror(asset.src, percent);
- if(asset.onerror && event !== undefined)
- asset.onerror(event);
- }
-
- if (percent === 100) {
- if(self.onload) self.onload();
-
- self.onprogress = null;
- self.onerror = null;
- self.onload = null;
- }
- }
-
- /**
- * Displays the progress of asset handling as an overall percentage of all loading
- * (Can be overridden as jaws.assets.displayProgress = function(percent_done) {})
- * @public
- * @param {number} percent_done The overall percentage done across all resource handling
- */
- self.displayProgress = function(percent_done) {
-
- if (!jaws.isNumber(percent_done))
- return;
-
- if (!jaws.context)
- return;
-
- jaws.context.save();
- jaws.context.fillStyle = "black";
- jaws.context.fillRect(0, 0, jaws.width, jaws.height);
-
- jaws.context.fillStyle = "white";
- jaws.context.strokeStyle = "white";
- jaws.context.textAlign = "center";
-
- jaws.context.strokeRect(50 - 1, (jaws.height / 2) - 30 - 1, jaws.width - 100 + 2, 60 + 2);
- jaws.context.fillRect(50, (jaws.height / 2) - 30, ((jaws.width - 100) / 100) * percent_done, 60);
-
- jaws.context.font = "11px verdana";
- jaws.context.fillText("Loading... " + percent_done + "%", jaws.width / 2, jaws.height / 2 - 35);
-
- jaws.context.font = "11px verdana";
- jaws.context.fillStyle = "#ccc";
- jaws.context.textBaseline = "bottom";
- jaws.context.fillText("powered by www.jawsjs.com", jaws.width / 2, jaws.height - 1);
-
- jaws.context.restore();
- };
- };
-
- /**
- * Make Fuchia (0xFF00FF) transparent (BMPs ONLY)
- * @private
- * @param {HTMLImageElement} image The Bitmap Image to convert
- * @returns {CanvasElement} canvas The translated CanvasElement
- */
- function fuchiaToTransparent(image) {
- if (!jaws.isDrawable(image))
- return;
-
- var canvas = jaws.isImage(image) ? jaws.imageToCanvas(image) : image;
- var context = canvas.getContext("2d");
- var img_data = context.getImageData(0, 0, canvas.width, canvas.height);
- var pixels = img_data.data;
- for (var i = 0; i < pixels.length; i += 4) {
- if (pixels[i] === 255 && pixels[i + 1] === 0 && pixels[i + 2] === 255) { // Color: Fuchia
- pixels[i + 3] = 0; // Set total see-through transparency
- }
- }
-
- context.putImageData(img_data, 0, 0);
- return canvas;
- }
-
- jaws.assets = new jaws.Assets();
- return jaws;
-})(jaws || {});
-
-
-if(typeof require !== "undefined") { var jaws = require("./core.js"); }
-
-var jaws = (function(jaws) {
-
-// requestAnim shim layer by Paul Irish
-window.requestAnimFrame = (function(){
- return window.requestAnimationFrame ||
- window.webkitRequestAnimationFrame ||
- window.mozRequestAnimationFrame ||
- window.oRequestAnimationFrame ||
- window.msRequestAnimationFrame ||
- function(/* function */ callback, /* DOMElement */ element){
- window.setTimeout(callback, 16.666);
- };
-})();
-
-/**
- * @class A classic game loop forever looping calls to update() / draw() with given framerate. "Field Summary" contains options for the GameLoop()-constructor.
- *
- * @property {int} tick_duration duration in ms between the last 2 ticks (often called dt)
- * @property {int} fps the real fps (as opposed to the target fps), smoothed out with a moving average
- * @property {int} ticks total amount of ticks since game loops start
- *
- * @example
- *
- * game = {}
- * draw: function() { ... your stuff executed every 30 FPS ... }
- * }
- *
- * game_loop = new jaws.GameLoop(game, {fps: 30})
- * game_loop.start()
- *
- * // You can also use the shortcut jaws.start(), it will:
- * // 1) Load all assets with jaws.assets.loadAll()
- * // 2) Create a GameLoop() and start it
- * jaws.start(MyGameState, {fps: 30})
- *
- */
-jaws.GameLoop = function GameLoop(game_object, options, game_state_setup_options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( game_object, options );
-
- this.tick_duration = 0
- this.fps = 0
- this.ticks = 0
-
- var update_id
- var paused = false
- var stopped = false
- var that = this
- var mean_value = new MeanValue(20) // let's have a smooth, non-jittery FPS-value
-
- /**
- * returns how game_loop has been active in milliseconds
- * does currently not factor in pause-time
- */
- this.runtime = function() {
- return (this.last_tick - this.first_tick)
- }
-
- /** Start the game loop by calling setup() once and then loop update()/draw() forever with given FPS */
- this.start = function() {
- jaws.log.info("Game loop start", true)
-
- this.first_tick = (new Date()).getTime();
- this.current_tick = (new Date()).getTime();
- this.last_tick = (new Date()).getTime();
-
- if(options.setup !== false && game_object.setup) { game_object.setup(game_state_setup_options) }
- step_delay = 1000 / options.fps;
-
- if(options.fps == 60) {
- requestAnimFrame(this.loop)
- }
- else {
- update_id = setInterval(this.loop, step_delay);
- }
- }
-
- /** The core of the game loop. Calculate a mean FPS and call update()/draw() if game loop is not paused */
- this.loop = function() {
- that.current_tick = (new Date()).getTime();
- that.tick_duration = that.current_tick - that.last_tick
- that.fps = mean_value.add(1000/that.tick_duration).get()
-
- if(!stopped && !paused) {
- if(game_object.update) { game_object.update() }
- if(game_object.draw) { game_object.draw() }
- that.ticks++
- }
- if(options.fps == 60 && !stopped) requestAnimFrame(that.loop);
- that.last_tick = that.current_tick;
- }
-
- /** Pause the game loop. loop() will still get called but not update() / draw() */
- this.pause = function() { paused = true }
-
- /** unpause the game loop */
- this.unpause = function() { paused = false }
-
- /** Stop the game loop */
- this.stop = function() {
- if(update_id) clearInterval(update_id);
- stopped = true;
- }
-}
-
-/** @ignore */
-function MeanValue(size) {
- this.size = size
- this.values = new Array(this.size)
- this.value
-
- this.add = function(value) {
- if(this.values.length > this.size) { // is values filled?
- this.values.splice(0,1)
- this.value = 0
- for(var i=0; this.values[i]; i++) {
- this.value += this.values[i]
- }
- this.value = this.value / this.size
- }
- this.values.push(value)
-
- return this
- }
-
- this.get = function() {
- return parseInt(this.value)
- }
-
-}
-
-return jaws;
-})(jaws || {});
-
-
-var jaws = (function(jaws) {
-
-/*
-* 2013-09-28:
-*
-* For a 10x10 sprite in the topleft corner, should sprite.rect().bottom be 9 or 10?
-* There's no right or wrong answer. In some cases 9 makes sense (if checking directly for pixel-values for example).
-* In other cases 10 makes sense (bottom = x + height).
-*
-* The important part is beeing consistent across the lib/game.
-* Jaws started out with bottom = x + height so we'll continue with that way until good reasons to change come up.
-* Therefore correction = 0 for now.
-*/
-var correction = 0;
-
-/**
- @class A Basic rectangle.
- @example
- rect = new jaws.Rect(5,5,20,20)
- rect.right // -> 25
- rect.bottom // -> 25
- rect.move(10,20)
- rect.right // -> 35
- rect.bottom // -> 45
- rect.width // -> 20
- rect.height // -> 20
-*/
-jaws.Rect = function Rect(x, y, width, height) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee(x, y, width, height);
-
- this.x = x
- this.y = y
- this.width = width
- this.height = height
- this.right = x + width - correction
- this.bottom = y + height - correction
-}
-
-/** Return position as [x,y] */
-jaws.Rect.prototype.getPosition = function() {
- return [this.x, this.y]
-}
-
-/** Move rect x pixels horizontally and y pixels vertically */
-jaws.Rect.prototype.move = function(x, y) {
- this.x += x
- this.y += y
- this.right += x
- this.bottom += y
- return this
-}
-
-/** Set rects x/y */
-jaws.Rect.prototype.moveTo = function(x, y) {
- this.x = x
- this.y = y
- this.right = this.x + this.width - correction
- this.bottom = this.y + this.height - correction
- return this
-}
-/** Modify width and height */
-jaws.Rect.prototype.resize = function(width, height) {
- this.width += width
- this.height += height
- this.right = this.x + this.width - correction
- this.bottom = this.y + this.height - correction
- return this
-}
-
-/** Returns a new rect witht he same dimensions */
-jaws.Rect.prototype.clone = function() {
- return new jaws.Rect(this.x, this.y, this.width, this.height)
-}
-
-/** Shrink rectangle on both axis with given x/y values */
-jaws.Rect.prototype.shrink = function(x, y) {
- this.x += x
- this.y += y
- this.width -= (x+x)
- this.height -= (y+y)
- this.right = this.x + this.width - correction
- this.bottom = this.y + this.height - correction
- return this
-}
-
-/** Set width and height */
-jaws.Rect.prototype.resizeTo = function(width, height) {
- this.width = width
- this.height = height
- this.right = this.x + this.width - correction
- this.bottom = this.y + this.height - correction
- return this
-}
-
-/** Draw rect in color red, useful for debugging */
-jaws.Rect.prototype.draw = function() {
- jaws.context.strokeStyle = "red"
- jaws.context.strokeRect(this.x-0.5, this.y-0.5, this.width, this.height)
- return this
-}
-
-/** Returns true if point at x, y lies within calling rect */
-jaws.Rect.prototype.collidePoint = function(x, y) {
- return (x >= this.x && x <= this.right && y >= this.y && y <= this.bottom)
-}
-
-/** Returns true if calling rect overlaps with given rect in any way */
-jaws.Rect.prototype.collideRect = function(rect) {
- return ((this.x >= rect.x && this.x <= rect.right) || (rect.x >= this.x && rect.x <= this.right)) &&
- ((this.y >= rect.y && this.y <= rect.bottom) || (rect.y >= this.y && rect.y <= this.bottom))
-}
-
-/*
-// Possible future functions
-jaws.Rect.prototype.collideRightSide = function(rect) { return(this.right >= rect.x && this.x < rect.x) }
-jaws.Rect.prototype.collideLeftSide = function(rect) { return(this.x > rect.x && this.x <= rect.right) }
-jaws.Rect.prototype.collideTopSide = function(rect) { return(this.y >= rect.y && this.y <= rect.bottom) }
-jaws.Rect.prototype.collideBottomSide = function(rect) { return(this.bottom >= rect.y && this.y < rect.y) }
-*/
-
-jaws.Rect.prototype.toString = function() { return "[Rect " + this.x + ", " + this.y + ", " + this.width + ", " + this.height + "]" }
-
-return jaws;
-})(jaws || {});
-
-// Support CommonJS require()
-if(typeof module !== "undefined" && ('exports' in module)) { module.exports = jaws.Rect }
-
-
-var jaws = (function(jaws) {
-
-/**
-* @class A basic but powerfull sprite for all your onscreen-game objects. "Field Summary" contains options for the Sprite()-constructor.
-* @constructor
-*
-* @property {int} x Horizontal position (0 = furthest left)
-* @property {int} y Vertical position (0 = top)
-* @property {image} image Image/canvas or string pointing to an asset ("player.png")
-* @property {int} alpha Transparency 0=fully transparent, 1=no transperency
-* @property {int} angle Angle in degrees (0-360)
-* @property {bool} flipped Flip sprite horizontally, usefull for sidescrollers
-* @property {string} anchor String stating how to anchor the sprite to canvas, @see Sprite#anchor ("top_left", "center" etc)
-* @property {int} scale_image Scale the sprite by this factor
-* @property {string,gradient} color If set, draws a rectangle of dimensions rect() with specified color or gradient (linear or radial)
-*
-* @example
-* // create new sprite at top left of the screen, will use jaws.assets.get("foo.png")
-* new Sprite({image: "foo.png", x: 0, y: 0})
-*
-* // sets anchor to "center" on creation
-* new Sprite({image: "topdownspaceship.png", anchor: "center"})
-*
-*/
-jaws.Sprite = function Sprite(options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( options );
- this.set(options)
- this.context = options.context ? options.context : jaws.context; // Prefer given canvas-context, fallback to jaws.context
-}
-
-jaws.Sprite.prototype.default_options = {
- x: 0,
- y: 0,
- alpha: 1,
- angle: 0,
- flipped: false,
- anchor_x: 0,
- anchor_y: 0,
- image: null,
- image_path: null,
- anchor: null,
- scale_image: null,
- damping: 1,
- scale_x: 1,
- scale_y: 1,
- scale: 1,
- color: "#ddd",
- width: 16,
- height: 16,
- _constructor: null,
- context: null,
- data: null
-}
-
-/**
- * @private
- * Call setters from JSON object. Used to parse options.
- */
-jaws.Sprite.prototype.set = function(options) {
- if(jaws.isString(this.image)) this.image_path = this.image;
- jaws.parseOptions(this, options, this.default_options);
-
- if(this.scale) this.scale_x = this.scale_y = this.scale;
- if(this.image) this.setImage(this.image);
- if(this.scale_image) this.scaleImage(this.scale_image);
- if(this.anchor) this.setAnchor(this.anchor);
-
- if(!this.image && this.color && this.width && this.height) {
- var canvas = document.createElement('canvas');
- var context = canvas.getContext('2d');
- canvas.width = this.width;
- canvas.height = this.height;
- context.fillStyle = this.color;
- context.fillRect(0, 0, this.width, this.height);
- this.image = canvas;
- }
-
- this.cacheOffsets()
-
- return this
-}
-
-/**
- * @private
- *
- * Creates a new sprite from current sprites attributes()
- * Checks JawsJS magic property '_constructor' when deciding with which constructor to create it
- *
- */
-jaws.Sprite.prototype.clone = function(object) {
- var constructor = this._constructor ? eval(this._constructor) : this.constructor
- var new_sprite = new constructor( this.attributes() );
- new_sprite._constructor = this._constructor || this.constructor.name
- return new_sprite
-}
-
-
-/**
- * Sets image from image/canvas or asset-string ("foo.png")
- * If asset isn't previously loaded setImage() will try to load it.
- */
-jaws.Sprite.prototype.setImage = function(value) {
- var that = this
-
- // An image, great, set this.image and return
- if(jaws.isDrawable(value)) {
- this.image = value
- return this.cacheOffsets()
- }
- // Not an image, therefore an asset string, i.e. "ship.bmp"
- else {
- // Assets already loaded? Set this.image
- if(jaws.assets.isLoaded(value)) { this.image = jaws.assets.get(value); this.cacheOffsets(); }
-
- // Not loaded? Load it with callback to set image.
- else {
- jaws.log.warn("Image '" + value + "' not preloaded with jaws.assets.add(). Image and a working sprite.rect() will be delayed.")
- jaws.assets.load(value, {onload: function() { that.image = jaws.assets.get(value); that.cacheOffsets();} } )
- }
- }
- return this
-}
-
-/**
-* Steps 1 pixel towards the given X/Y. Horizontal and vertical steps are done separately between each callback.
-* Exits when the continueStep-callback returns true for both vertical and horizontal steps or if target X/Y has been reached.
-*
-* @returns {object} Object with 2 x/y-properties indicating what plane we moved in when stepToWhile was stopped.
-*/
-jaws.Sprite.prototype.stepToWhile = function(target_x, target_y, continueStep) {
- var step = 1;
- var step_x = (target_x < this.x) ? -step : step;
- var step_y = (target_y < this.y) ? -step : step;
-
- target_x = parseInt(target_x)
- target_y = parseInt(target_y)
-
- var collision_x = false;
- var collision_y = false;
-
- while( true ) {
- if(collision_x === false) {
- if(this.x != target_x) { this.x += step_x }
- if( !continueStep(this) ) { this.x -= step_x; collision_x = true }
- }
-
- if(collision_y === false) {
- if(this.y != target_y) { this.y += step_y }
- if( !continueStep(this) ) { this.y -= step_y; collision_y = true }
- }
-
- if( (collision_x || this.x == target_x) && (collision_y || this.y == target_y) )
- return {x: collision_x, y: collision_y};
- }
-}
-/**
-* Moves with given vx/vy velocoties by stepping 1 pixel at the time. Horizontal and vertical steps are done separately between each callback.
-* Exits when the continueStep-callback returns true for both vertical and horizontal steps or if target X/Y has been reached.
-*
-* @returns {object} Object with 2 x/y-properties indicating what plane we moved in when stepWhile was stopped.
-*/
-jaws.Sprite.prototype.stepWhile = function(vx, vy, continueStep) {
- return this.stepToWhile(this.x + vx, this.y + vy, continueStep)
-}
-
-/** Flips image vertically, usefull for sidescrollers when player is walking left/right */
-jaws.Sprite.prototype.flip = function() { this.flipped = this.flipped ? false : true; return this }
-jaws.Sprite.prototype.flipTo = function(value) { this.flipped = value; return this }
-/** Rotate sprite by value degrees */
-jaws.Sprite.prototype.rotate = function(value) { this.angle += value; return this }
-/** Force an rotation-angle on sprite */
-jaws.Sprite.prototype.rotateTo = function(value) { this.angle = value; return this }
-
-/** Set x/y */
-jaws.Sprite.prototype.moveTo = function(x, y) {
- if(jaws.isArray(x) && y === undefined) {
- y = x[1]
- x = x[0]
- }
- this.x = x;
- this.y = y;
- return this;
-}
-/** Modify x/y */
-jaws.Sprite.prototype.move = function(x, y) {
- if(jaws.isArray(x) && y === undefined) {
- y = x[1]
- x = x[0]
- }
-
- if(x) this.x += x;
- if(y) this.y += y;
- return this
-}
-/**
-* scale sprite by given factor. 1=don't scale. <1 = scale down. 1>: scale up.
-* Modifies width/height.
-**/
-jaws.Sprite.prototype.scaleAll = function(value) { this.scale_x *= value; this.scale_y *= value; return this.cacheOffsets() }
-/** set scale factor. ie. 2 means a doubling if sprite in both directions. */
-jaws.Sprite.prototype.scaleTo = function(value) { this.scale_x = this.scale_y = value; return this.cacheOffsets() }
-/** scale sprite horizontally by scale_factor. Modifies width. */
-jaws.Sprite.prototype.scaleWidth = function(value) { this.scale_x *= value; return this.cacheOffsets() }
-/** scale sprite vertically by scale_factor. Modifies height. */
-jaws.Sprite.prototype.scaleHeight = function(value) { this.scale_y *= value; return this.cacheOffsets() }
-
-/** Sets x */
-jaws.Sprite.prototype.setX = function(value) { this.x = value; return this }
-/** Sets y */
-jaws.Sprite.prototype.setY = function(value) { this.y = value; return this }
-
-/** Position sprites top on the y-axis */
-jaws.Sprite.prototype.setTop = function(value) { this.y = value + this.top_offset; return this }
-/** Position sprites bottom on the y-axis */
-jaws.Sprite.prototype.setBottom = function(value) { this.y = value - this.bottom_offset; return this }
-/** Position sprites left side on the x-axis */
-jaws.Sprite.prototype.setLeft = function(value) { this.x = value + this.left_offset; return this }
-/** Position sprites right side on the x-axis */
-jaws.Sprite.prototype.setRight = function(value) { this.x = value - this.right_offset; return this }
-
-/** Set new width. Scales sprite. */
-jaws.Sprite.prototype.setWidth = function(value) { this.scale_x = value/this.image.width; return this.cacheOffsets() }
-/** Set new height. Scales sprite. */
-jaws.Sprite.prototype.setHeight = function(value) { this.scale_y = value/this.image.height; return this.cacheOffsets() }
-/** Resize sprite by adding width */
-jaws.Sprite.prototype.resize = function(width, height) {
- if(jaws.isArray(width) && height === undefined) {
- height = width[1]
- width = width[0]
- }
-
- this.scale_x = (this.width + width) / this.image.width
- this.scale_y = (this.height + height) / this.image.height
- return this.cacheOffsets()
-}
-/**
- * Resize sprite to exact width/height
- */
-jaws.Sprite.prototype.resizeTo = function(width, height) {
- if(jaws.isArray(width) && height === undefined) {
- height = width[1]
- width = width[0]
- }
-
- this.scale_x = width / this.image.width
- this.scale_y = height / this.image.height
- return this.cacheOffsets()
-}
-
-/**
-* The sprites anchor could be describe as "the part of the sprite will be placed at x/y"
-* or "when rotating, what point of the of the sprite will it rotate round"
-*
-* @example
-* For example, a topdown shooter could use setAnchor("center") --> Place middle of the ship on x/y
-* .. and a sidescroller would probably use setAnchor("center_bottom") --> Place "feet" at x/y
-*/
-jaws.Sprite.prototype.setAnchor = function(value) {
- var anchors = {
- top_left: [0,0],
- left_top: [0,0],
- center_left: [0,0.5],
- left_center: [0,0.5],
- bottom_left: [0,1],
- left_bottom: [0,1],
- top_center: [0.5,0],
- center_top: [0.5,0],
- center_center: [0.5,0.5],
- center: [0.5,0.5],
- bottom_center: [0.5,1],
- center_bottom: [0.5,1],
- top_right: [1,0],
- right_top: [1,0],
- center_right: [1,0.5],
- right_center: [1,0.5],
- bottom_right: [1,1],
- right_bottom: [1,1]
- }
-
- if(a = anchors[value]) {
- this.anchor_x = a[0]
- this.anchor_y = a[1]
- if(this.image) this.cacheOffsets();
- }
- return this
-}
-
-/** @private */
-jaws.Sprite.prototype.cacheOffsets = function() {
- if(!this.image) { return }
-
- this.width = this.image.width * this.scale_x
- this.height = this.image.height * this.scale_y
- this.left_offset = this.width * this.anchor_x
- this.top_offset = this.height * this.anchor_y
- this.right_offset = this.width * (1.0 - this.anchor_x)
- this.bottom_offset = this.height * (1.0 - this.anchor_y)
-
- if(this.cached_rect) this.cached_rect.resizeTo(this.width, this.height);
- return this
-}
-
-/** Returns a jaws.Rect() perfectly surrouning sprite. Also cache rect in this.cached_rect. */
-jaws.Sprite.prototype.rect = function() {
- if(!this.cached_rect && this.width) this.cached_rect = new jaws.Rect(this.x, this.y, this.width, this.height);
- if(this.cached_rect) this.cached_rect.moveTo(this.x - this.left_offset, this.y - this.top_offset);
- return this.cached_rect
-}
-
-/** Draw sprite on active canvas */
-jaws.Sprite.prototype.draw = function() {
- if(!this.image) { return this }
-
- this.context.save()
- this.context.translate(this.x, this.y)
- if(this.angle!=0) { jaws.context.rotate(this.angle * Math.PI / 180) }
- this.flipped && this.context.scale(-1, 1)
- this.context.globalAlpha = this.alpha
- this.context.translate(-this.left_offset, -this.top_offset) // Needs to be separate from above translate call cause of flipped
- this.context.drawImage(this.image, 0, 0, this.width, this.height)
- this.context.restore()
- return this
-}
-
-/**
- * Scales image using hard block borders. Useful for that cute, blocky retro-feeling.
- * Depends on gfx.js beeing loaded.
- */
-jaws.Sprite.prototype.scaleImage = function(factor) {
- if(!this.image) return;
- this.setImage( jaws.retroScaleImage(this.image, factor) )
- return this
-}
-
-/**
- * Returns sprite as a canvas context.
- * For certain browsers, a canvas context is faster to work with then a pure image.
- */
-jaws.Sprite.prototype.asCanvasContext = function() {
- var canvas = document.createElement("canvas")
- canvas.width = this.width
- canvas.height = this.height
-
- var context = canvas.getContext("2d")
- if(jaws.context) context.mozImageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
-
- context.drawImage(this.image, 0, 0, this.width, this.height)
- return context
-}
-
-/**
- * Returns sprite as a canvas
- */
-jaws.Sprite.prototype.asCanvas = function() {
- var canvas = document.createElement("canvas")
- canvas.width = this.width
- canvas.height = this.height
-
- var context = canvas.getContext("2d")
- if(jaws.context) context.mozImageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
-
- context.drawImage(this.image, 0, 0, this.width, this.height)
- return canvas
-}
-
-jaws.Sprite.prototype.toString = function() { return "[Sprite " + this.x.toFixed(2) + ", " + this.y.toFixed(2) + ", " + this.width + ", " + this.height + "]" }
-
-/** returns Sprites state/properties as a pure object */
-jaws.Sprite.prototype.attributes = function() {
- var object = {} // Starting with this.options could create circular references through "context"
- object["_constructor"] = this._constructor || "jaws.Sprite"
- object["x"] = parseFloat(this.x.toFixed(2))
- object["y"] = parseFloat(this.y.toFixed(2))
- object["image"] = this.image_path
- object["alpha"] = this.alpha
- object["flipped"] = this.flipped
- object["angle"] = parseFloat(this.angle.toFixed(2))
- object["scale_x"] = this.scale_x;
- object["scale_y"] = this.scale_y;
- object["anchor_x"] = this.anchor_x
- object["anchor_y"] = this.anchor_y
-
- if(this.data !== null) object["data"] = jaws.clone(this.data); // For external data (for example added by the editor) that you want serialized
-
- return object
-}
-/**
- * Load/creates sprites from given data
- *
- * Argument could either be
- * - an array of Sprite objects
- * - an array of JSON objects
- * - a JSON.stringified string representing an array of JSON objects
- *
- * @return Array of created sprite
-*
- */
-jaws.Sprite.parse = function(objects) {
- var sprites = []
-
- if(jaws.isArray(objects)) {
- // If this is an array of JSON representations, parse it
- if(objects.every(function(item) { return item._constructor })) {
- parseArray(objects)
- } else {
- // This is already an array of Sprites, load it directly
- sprites = objects
- }
- }
- else if(jaws.isString(objects)) { parseArray( JSON.parse(objects) ); jaws.log.info(objects) }
-
- function parseArray(array) {
- array.forEach( function(data) {
- var constructor = data._constructor ? eval(data._constructor) : data.constructor
- if(jaws.isFunction(constructor)) {
- jaws.log.info("Creating " + data._constructor + "(" + data.toString() + ")", true)
- var object = new constructor(data)
- object._constructor = data._constructor || data.constructor.name
- sprites.push(object);
- }
- });
- }
-
- return sprites;
-}
-
-/**
- * returns a JSON-string representing the state of the Sprite.
- *
- * Use this to serialize your sprites / game objects, maybe to save in local storage or on a server
- *
- * jaws.game_states.Edit uses this to export all edited objects.
- *
- */
-jaws.Sprite.prototype.toJSON = function() {
- return JSON.stringify(this.attributes())
-}
-
-return jaws;
-})(jaws || {});
-
-// Support CommonJS require()
-if(typeof module !== "undefined" && ('exports' in module)) { module.exports = jaws.Sprite }
-
-/*
-// Chainable setters under consideration:
-jaws.Sprite.prototype.setFlipped = function(value) { this.flipped = value; return this }
-jaws.Sprite.prototype.setAlpha = function(value) { this.alpha = value; return this }
-jaws.Sprite.prototype.setAnchorX = function(value) { this.anchor_x = value; this.cacheOffsets(); return this }
-jaws.Sprite.prototype.setAnchorY = function(value) { this.anchor_y = value; this.cacheOffsets(); return this }
-jaws.Sprite.prototype.setAngle = function(value) { this.angle = value; return this }
-jaws.Sprite.prototype.setScale = function(value) { this.scale_x = this.scale_y = value; this.cacheOffsets(); return this }
-jaws.Sprite.prototype.setScaleX = function(value) { this.scale_x = value; this.cacheOffsets(); return this }
-jaws.Sprite.prototype.setScaleY = function(value) { this.scale_y = value; this.cacheOffsets(); return this }
-jaws.Sprite.prototype.moveX = function(x) { this.x += x; return this }
-jaws.Sprite.prototype.moveXTo = function(x) { this.x = x; return this }
-jaws.Sprite.prototype.moveY = function(y) { this.y += y; return this }
-jaws.Sprite.prototype.moveYTo = function(y) { this.y = y; return this }
-jaws.Sprite.prototype.scaleWidthTo = function(value) { this.scale_x = value; return this.cacheOffsets() }
-jaws.Sprite.prototype.scaleHeightTo = function(value) { this.scale_y = value; return this.cachOfffsets() }
-*/
-
-
-var jaws = (function(jaws) {
-
-
-/**
- * @class Cut out invidual frames (images) from a larger spritesheet-image. "Field Summary" contains options for the SpriteSheet()-constructor.
- *
- * @property {image|image} Image/canvas or asset-string to cut up smaller images from
- * @property {string} orientation How to cut out invidual images from spritesheet, either "right" or "down"
- * @property {array} frame_size width and height of invidual frames in spritesheet
- * @property {array} frames all single frames cut out from image
- * @property {integer} offset vertical or horizontal offset to start cutting from
- * @property {int} scale_image Scale the sprite sheet by this factor before cutting out the frames. frame_size is automatically re-sized too
- *
-*/
-jaws.SpriteSheet = function SpriteSheet(options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( options );
-
- jaws.parseOptions(this, options, this.default_options);
-
- /* Detect framesize from filename, example: droid_10x16.png means each frame is 10px high and 16px wide */
- if(jaws.isString(this.image) && !options.frame_size) {
- var regexp = new RegExp("_(\\d+)x(\\d+)", "g");
- var sizes = regexp.exec(this.image)
- this.frame_size = []
- this.frame_size[0] = parseInt(sizes[1])
- this.frame_size[1] = parseInt(sizes[2])
- }
-
- this.image = jaws.isDrawable(this.image) ? this.image : jaws.assets.data[this.image]
- if(this.scale_image) {
- var image = (jaws.isDrawable(this.image) ? this.image : jaws.assets.get(this.image))
- this.frame_size[0] *= this.scale_image
- this.frame_size[1] *= this.scale_image
- this.image = jaws.retroScaleImage(image, this.scale_image)
- }
-
- var index = 0
- this.frames = []
-
- // Cut out tiles from Top -> Bottom
- if(this.orientation == "down") {
- for(var x=this.offset; x < this.image.width; x += this.frame_size[0]) {
- for(var y=0; y < this.image.height; y += this.frame_size[1]) {
- this.frames.push( cutImage(this.image, x, y, this.frame_size[0], this.frame_size[1]) )
- }
- }
- }
- // Cut out tiles from Left -> Right
- else {
- for(var y=this.offset; y < this.image.height; y += this.frame_size[1]) {
- for(var x=0; x < this.image.width; x += this.frame_size[0]) {
- this.frames.push( cutImage(this.image, x, y, this.frame_size[0], this.frame_size[1]) )
- }
- }
- }
-}
-
-jaws.SpriteSheet.prototype.default_options = {
- image: null,
- orientation: "down",
- frame_size: [32,32],
- offset: 0,
- scale_image: null
-}
-
-/** @private
- * Cut out a rectangular piece of a an image, returns as canvas-element
- */
-function cutImage(image, x, y, width, height) {
- var cut = document.createElement("canvas")
- cut.width = width
- cut.height = height
-
- var ctx = cut.getContext("2d")
- ctx.drawImage(image, x, y, width, height, 0, 0, cut.width, cut.height)
-
- return cut
-};
-
-jaws.SpriteSheet.prototype.toString = function() { return "[SpriteSheet " + this.frames.length + " frames]" }
-
-return jaws;
-})(jaws || {});
-
-
-var jaws = (function(jaws) {
-
-/**
- * @class Manages an animation with a given list of frames. "Field Summary" contains options for the Animation()-constructor.
- *
- * @property {bool} loop Restart animation when end is reached
- * @property {bool} bounce Rewind the animation frame by frame when end is reached
- * @property {int} index Start on this frame
- * @property {array} frames Images/canvaselements
- * @property {milliseconds} frame_duration How long should each frame be displayed
- * @property {int} frame_direction -1 for backwards animation. 1 is default
- * @property {array} frame_size Containing width/height, eg. [32, 32]
- * @property {int} offset When cutting out frames from a sprite sheet, start at this frame
- * @property {string} orientation How to cut out frames frmo sprite sheet, possible values are "down" or "right"
- * @property {function} on_end Function to call when animation ends. triggers only on non-looping, non-bouncing animations
- * @property {object} subsets Name specific frames-intervals for easy access later, i.e. {move: [2,4], fire: [4,6]}. Access with animation.subset[name]
- *
- * @example
- * // in setup()
- * anim = new jaws.Animation({sprite_sheet: "droid_11x15.png", frame_size: [11,15], frame_duration: 100})
- * player = new jaws.Sprite({y:300, anchor: "center_bottom"})
- *
- * // in update()
- * player.setImage( anim.next() )
- *
- * // in draw()
- * player.draw()
- *
- */
-jaws.Animation = function Animation(options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( options );
-
- jaws.parseOptions(this, options, this.default_options);
-
- if(options.sprite_sheet) {
- var sprite_sheet = new jaws.SpriteSheet({image: options.sprite_sheet, scale_image: this.scale_image, frame_size: this.frame_size, orientation: this.orientation, offset: this.offset})
- this.frames = sprite_sheet.frames
- this.frame_size = sprite_sheet.frame_size
- }
-
- if(options.scale_image) {
- var image = (jaws.isDrawable(options.sprite_sheet) ? options.sprite_sheet : jaws.assets.get(options.sprite_sheet))
- this.frame_size[0] *= options.scale_image
- this.frame_size[1] *= options.scale_image
- options.sprite_sheet = jaws.retroScaleImage(image, options.scale_image)
- }
-
- /* Initializing timer-stuff */
- this.current_tick = (new Date()).getTime();
- this.last_tick = (new Date()).getTime();
- this.sum_tick = 0
-
- if(options.subsets) {
- this.subsets = {}
- for(subset in options.subsets) {
- start_stop = options.subsets[subset]
- this.subsets[subset] = this.slice(start_stop[0], start_stop[1])
- }
- }
-}
-
-jaws.Animation.prototype.default_options = {
- frames: [],
- subsets: [],
- frame_duration: 100, // default: 100ms between each frameswitch
- index: 0, // default: start with the very first frame
- loop: 1,
- bounce: 0,
- frame_direction: 1,
- frame_size: null,
- orientation: "down",
- on_end: null,
- offset: 0,
- scale_image: null,
- sprite_sheet: null
-}
-
-/**
- * Return a special animationsubset created with "subset"-parameter when initializing
- *
- */
-jaws.Animation.prototype.subset = function(subset) {
- return this.subsets[subset]
-}
-
-/**
- Propells the animation forward by counting milliseconds and changing this.index accordingly
- Supports looping and bouncing animations
-*/
-jaws.Animation.prototype.update = function() {
- this.current_tick = (new Date()).getTime();
- this.sum_tick += (this.current_tick - this.last_tick);
- this.last_tick = this.current_tick;
-
- if(this.sum_tick > this.frame_duration) {
- this.index += this.frame_direction
- this.sum_tick = 0
- }
- if( (this.index >= this.frames.length) || (this.index < 0) ) {
- if(this.bounce) {
- this.frame_direction = -this.frame_direction
- this.index += this.frame_direction * 2
- }
- else if(this.loop) {
- if(this.frame_direction < 0) {
- this.index = this.frames.length -1;
- } else {
- this.index = 0;
- }
- }
- else {
- this.index -= this.frame_direction
- if (this.on_end) {
- this.on_end()
- this.on_end = null
- }
- }
- }
- return this
-}
-
-/**
- works like Array.slice but returns a new Animation-object with a subset of the frames
-*/
-jaws.Animation.prototype.slice = function(start, stop) {
- var o = {}
- o.frame_duration = this.frame_duration
- o.loop = this.loop
- o.bounce = this.bounce
- o.on_end = this.on_end
- o.frame_direction = this.frame_direction
- o.frames = this.frames.slice().slice(start, stop)
- return new jaws.Animation(o)
-};
-
-/**
- Moves animation forward by calling update() and then return the current frame
-*/
-jaws.Animation.prototype.next = function() {
- this.update()
- return this.frames[this.index]
-};
-
-/** returns true if animation is at the very last frame */
-jaws.Animation.prototype.atLastFrame = function() { return (this.index == this.frames.length-1) }
-
-/** returns true if animation is at the very first frame */
-jaws.Animation.prototype.atFirstFrame = function() { return (this.index == 0) }
-
-
-/**
- returns the current frame
-*/
-jaws.Animation.prototype.currentFrame = function() {
- return this.frames[this.index]
-};
-
-/**
- * Debugstring for Animation()-constructor
- * @example
- * var anim = new Animation(...)
- * console.log(anim.toString())
- */
-jaws.Animation.prototype.toString = function() { return "[Animation, " + this.frames.length + " frames]" }
-
-return jaws;
-})(jaws || {});
-
-
-if(typeof require !== "undefined") { var jaws = require("./core.js"); }
-
-/**
- * @fileOverview Collision Detection
- *
- * Collision detection helpers.
- *
- * @example
- * // collision helper exampels:
- * collideOneWithOne(player, boss) // -> false
- * collideOneWithMany(player, bullets) // -> [bullet1, bullet1]
- * collideManyWithMany(bullets, enemies) // -> [ [bullet1, enemy1], [bullet2, enemy2] ]
- * collide(player, boss) // -> false
- * collide(player,
- * bullets,
- * function(player, bullet) {}) // Callback: arguments[0] -> player
- * // arguments[1] -> bullets[i]
- *
- */
-var jaws = (function(jaws) {
-
- /**
- * Collides two objects by reading x, y and either method rect() or property radius.
- * @public
- * @param {object} object1 An object with a 'radius' or 'rect' property
- * @param {object} object2 An object with a 'radius' or 'rect' property
- * @returns {boolean} If the two objects are colliding or not
- */
- jaws.collideOneWithOne = function(object1, object2) {
- if (object1.radius && object2.radius && object1 !== object2 && jaws.collideCircles(object1, object2))
- return true;
-
- if (object1.rect && object2.rect && object1 !== object2 && jaws.collideRects(object1.rect(), object2.rect()))
- return true;
-
- return false;
- };
-
- /**
- * Compares an object against a list, returning those from list that collide with object, and
- * calling 'callback' per collision (if set) with object and item from list.
- * (Note: Will never collide objects with themselves.)
- * @public
- * @param {object} object An object with a 'radius' or 'rect' property
- * @param {array|object} list A collection of objects with a 'length' property
- * @param {function} callback The function to be called per collison detected
- * @returns {array} A collection of items colliding with object from list
- * @example
- * collideOneWithMany(player, bullets) // -> [bullet1, bullet1]
- * collideOneWithMany(player, bullets, function(player, bullet) {
- * //player and bullet (bullets[i])
- * });
- */
- jaws.collideOneWithMany = function(object, list, callback) {
- var a = [];
- if (callback) {
- for (var i = 0; i < list.length; i++) {
- if (jaws.collideOneWithOne(object, list[i])) {
- callback(object, list[i]);
- a.push(list[i])
- }
- }
- return a;
- }
- else {
- return list.filter(function(item) {
- return jaws.collideOneWithOne(object, item);
- });
- }
- };
-
- /**
- * Compares two lists, returning those items from each that collide with each other, and
- * calling 'callback' per collision (if set) with item from list1 and item from list2.
- * (Note: Will never collide objects with themselves.)
- * @public
- * @param {array|object} list1 A collection of objects with a 'forEach' property
- * @param {array|object} list2 A collection of objects with a 'forEach' property
- * @param {function} callback The function to be called per collison detected
- * @returns {array} A collection of items colliding with list1 from list2
- * @example
- * jaws.collideManyWithMany(bullets, enemies) // --> [[bullet, enemy], [bullet, enemy]]
- */
- jaws.collideManyWithMany = function(list1, list2, callback) {
- var a = [];
-
- if (list1 === list2) {
- combinations(list1, 2).forEach(function(pair) {
- if (jaws.collideOneWithOne(pair[0], pair[1])) {
- if (callback) {
- callback(pair[0], pair[1]);
- }
- else {
- a.push([pair[0], pair[1]]);
- }
- }
- });
- }
- else {
- list1.forEach(function(item1) {
- list2.forEach(function(item2) {
- if (jaws.collideOneWithOne(item1, item2)) {
- if (callback) {
- callback(item1, item2);
- }
- else {
- a.push([item1, item2]);
- }
- }
- });
- });
- }
-
- return a;
- };
-
- /**
- * Returns if two circle-objects collide with each other
- * @public
- * @param {object} object1 An object with a 'radius' property
- * @param {object} object2 An object with a 'radius' property
- * @returns {boolean} If two circle-objects collide or not
- */
- jaws.collideCircles = function(object1, object2) {
- return (jaws.distanceBetween(object1, object2) < object1.radius + object2.radius);
- };
-
- /**
- * Returns if two Rects collide with each other or not
- * @public
- * @param {object} rect1 An object with 'x', 'y', 'right' and 'bottom' properties
- * @param {object} rect2 An object with 'x', 'y', 'right' and 'bottom' properties
- * @returns {boolean} If two Rects collide with each other or not
- */
- jaws.collideRects = function(rect1, rect2) {
- return ((rect1.x >= rect2.x && rect1.x <= rect2.right) || (rect2.x >= rect1.x && rect2.x <= rect1.right)) &&
- ((rect1.y >= rect2.y && rect1.y <= rect2.bottom) || (rect2.y >= rect1.y && rect2.y <= rect1.bottom));
- };
-
- /**
- * Returns the distance between two objects
- * @public
- * @param {object} object1 An object with 'x' and 'y' properties
- * @param {object} object2 An object with 'x' and 'y' properties
- * @returns {number} The distance between two objects
- */
- jaws.distanceBetween = function(object1, object2) {
- return Math.sqrt(Math.pow(object1.x - object2.x, 2) + Math.pow(object1.y - object2.y, 2));
- };
-
- /**
- * Creates combinations of items from a list of a specific size
- * @private
- * @param {array|object} list An object with a 'length' property
- * @param {number} n The size of the array to return
- * @returns {Array} An array of items having a specific size number of its own entries
- */
- function combinations(list, n) {
- var f = function(i) {
- if (list.isSpriteList !== undefined) {
- return list.at(i);
- } else { // s is an Array
- return list[i];
- }
- };
- var r = [];
- var m = new Array(n);
- for (var i = 0; i < n; i++)
- m[i] = i;
- for (var i = n - 1, sn = list.length; 0 <= i; sn = list.length) {
- r.push(m.map(f));
- while (0 <= i && m[i] === sn - 1) {
- i--;
- sn--;
- }
- if (0 <= i) {
- m[i] += 1;
- for (var j = i + 1; j < n; j++)
- m[j] = m[j - 1] + 1;
- i = n - 1;
- }
- }
- return r;
- }
-
- /**
- * If an object has items or not
- * @private
- * @param {array|object} array An object with a 'length' property
- * @returns {boolean} If the object has items (length > 0)
- */
- function hasItems(array) {
- return (array && array.length > 0);
- }
-
- /**
- * Compares two objects or lists, returning if they collide, and
- * calling 'callback' per collision (if set) between objects or lists.
- * @param {array|object} x An object with either 'rect' or 'forEach' property
- * @param {array|object} x2 An object with either 'rect' or 'forEach' property
- * @param {function} callback
- * @returns {boolean}
- * @examples
- * jaws.collide(player, enemy, function(player, enemy) { ... } )
- * jaws.collide(player, enemies, function(player, enemy) { ... } )
- * jaws.collide(bullets, enemies, function(bullet, enemy) { ... } )
- */
- jaws.collide = function(x, x2, callback) {
- if ((x.rect || x.radius) && x2.forEach)
- return (jaws.collideOneWithMany(x, x2, callback).length > 0);
- if (x.forEach && x2.forEach)
- return (jaws.collideManyWithMany(x, x2, callback).length > 0);
- if (x.forEach && (x2.rect || x2.radius))
- return (jaws.collideOneWithMany(x2, x, callback).length > 0);
- if ((x.rect && x2.rect) || (x.radius && x2.radius)) {
- var result = jaws.collideOneWithOne(x, x2);
- if (callback && result)
- callback(x, x2);
- else
- return result;
- }
- };
-
- return jaws;
-})(jaws || {});
-
-
-var jaws = (function(jaws) {
-/**
-* @class jaws.PixelMap
-* @constructor
-*
-* Worms-style terrain collision detection. Created from a normal image.
-* Read out specific pixels. Modify as you would do with a canvas.
-*
-* @property {string} image the image of the terrain
-* @property {int} scale_image Scale the image by this factor
-*
-* @example
-* tile_map = new jaws.Parallax({image: "map.png", scale_image: 4}) // scale_image: 4 for retro blocky feeling!
-* tile_map.draw() // draw on canvas
-* tile_map.nameColor([0,0,0,255], "ground") // give the color black the name "ground"
-* tile_map.namedColorAtRect("ground", player.rect()) // True if players boundingbox is touching any black pixels on tile_map
-*
-*/
-jaws.PixelMap = function PixelMap(options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( options );
-
- this.options = options
- this.scale = options.scale || 1
- this.x = options.x || 0
- this.y = options.y || 0
-
- if(options.image) {
- this.setContext(options.image);
-
- if(options.scale_image) {
- this.setContext( jaws.retroScaleImage(this.context.canvas, options.scale_image) )
- }
-
- this.width = this.context.canvas.width * this.scale;
- this.height = this.context.canvas.height * this.scale;
- }
- else { jaws.log.warn("PixelMap needs an image to work with") }
-
- this.named_colors = [];
- this.update();
-}
-
-/*
-* Initiates a drawable context from given image.
-* @private
-*/
-jaws.PixelMap.prototype.setContext = function(image) {
- var image = jaws.isDrawable(image) ? image : jaws.assets.get(image)
- this.context = jaws.imageToCanvasContext(image)
-}
-
-/**
-* Updates internal pixel-array from the canvas. If we modify the 'terrain' (paint on pixel_map.context) we'll need to call this method.
-*/
-jaws.PixelMap.prototype.update = function(x, y, width, height) {
- if(x === undefined || x < 0) x = 0;
- if(y === undefined || y < 0) y = 0;
- if(width === undefined || width > this.width) width = this.width;
- if(height === undefined || height > this.height) height = this.height;
-
- // No arguments? Read whole canvas, replace this.data
- if(arguments.length == 0) {
- this.data = this.context.getImageData(x, y, width, height).data
- }
- // Read a rectangle from the canvas, replacing relevant pixels in this.data
- else {
- var tmp = this.context.getImageData(x, y, width, height).data
- var tmp_count = 0;
-
- // Some precalculation-optimizations
- var one_line_down = this.width * 4;
- var offset = (y * this.width * 4) + (x*4);
- var horizontal_line = width*4;
-
- for(var y2 = 0; y2 < height; y2++) {
- for(var x2 = 0; x2 < horizontal_line; x2++) {
- this.data[offset + x2] = tmp[tmp_count++];
- }
- offset += one_line_down;
- }
- }
-}
-
-/**
-* Draws the pixel map on the maincanvas
-*/
-jaws.PixelMap.prototype.draw = function() {
- jaws.context.drawImage(this.context.canvas, this.x, this.y, this.width, this.height)
-}
-
-/**
-* Trace the outline of a Rect until a named color found.
-*
-* @param {object} Rect Instance of jaws.Rect()
-* @param {string} Color_Filter Only look for this named color
-*
-* @return {string} name of found color
-*/
-jaws.PixelMap.prototype.namedColorAtRect = function(rect, color) {
- var x = rect.x
- var y = rect.y
-
- for(; x < rect.right-1; x++) if(this.namedColorAt(x, y) == color || color===undefined) return this.namedColorAt(x,y);
- for(; y < rect.bottom-1; y++) if(this.namedColorAt(x, y) == color || color===undefined) return this.namedColorAt(x,y);
- for(; x > rect.x; x--) if(this.namedColorAt(x, y) == color || color===undefined) return this.namedColorAt(x,y);
- for(; y > rect.y; y--) if(this.namedColorAt(x, y) == color || color===undefined) return this.namedColorAt(x,y);
-
- return false;
-}
-
-/**
-* Read current color at given coordinates X/Y
-*
-* @return {array} 4 integers [R, G, B, A] representing the pixel at x/y
-*/
-jaws.PixelMap.prototype.at = function(x, y) {
- x = parseInt(x)
- y = parseInt(y)
- if(y < 0) y = 0;
-
- var start = (y * this.width * 4) + (x*4);
- var R = this.data[start];
- var G = this.data[start + 1];
- var B = this.data[start + 2];
- var A = this.data[start + 3];
- return [R, G, B, A];
-}
-
-/**
-* Get previously named color if it exists at given x/y-coordinates.
-*
-* @return {string} name or color
-*/
-jaws.PixelMap.prototype.namedColorAt = function(x, y) {
- var a = this.at(x, y);
- for(var i=0; i < this.named_colors.length; i++) {
- var name = this.named_colors[i].name;
- var c = this.named_colors[i].color;
- if(c[0] == a[0] && c[1] == a[1] && c[2] == a[2] && c[3] == a[3]) return name;
- }
-}
-
-/**
-* Give a RGBA-array a name. Later on we can work with names instead of raw colorvalues.
-*
-* @example
-* pixel_map.nameColor([0,0,0,255], "ground") // Give the color black (with no transparency) the name "ground"
-*/
-jaws.PixelMap.prototype.nameColor = function(color, name) {
- this.named_colors.push({name: name, color: color});
-}
-
-return jaws;
-})(jaws || {});
-
-var jaws = (function(jaws) {
- /**
- * @class Manage a parallax scroller with different layers. "Field Summary" contains options for the Parallax()-constructor.
- * @constructor
- *
- * @property scale number, scale factor for all layers (2 will double everything and so on)
- * @property repeat_x true|false, repeat all parallax layers horizontally
- * @property repeat_y true|false, repeat all parallax layers vertically
- * @property camera_x number, x-position of "camera". add to camera_x and layers will scroll left. defaults to 0
- * @property camera_y number, y-position of "camera". defaults to 0
- *
- * @example
- * parallax = new jaws.Parallax({repeat_x: true})
- * parallax.addLayer({image: "parallax_1.png", damping: 100})
- * parallax.addLayer({image: "parallax_2.png", damping: 6})
- * parallax.camera_x += 1 // scroll layers horizontally
- * parallax.draw()
- *
- */
- jaws.Parallax = function Parallax(options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( options );
- jaws.parseOptions(this, options, this.default_options)
- }
-
- jaws.Parallax.prototype.default_options = {
- width: function() { return jaws.width },
- height: function() { return jaws.height },
- scale: 1,
- repeat_x: null,
- repeat_y: null,
- camera_x: 0,
- camera_y: 0,
- layers: []
- }
-
- /** Draw all layers in parallax scroller */
- jaws.Parallax.prototype.draw = function(options) {
- var layer, numx, numy, initx;
-
- for(var i=0; i < this.layers.length; i++) {
- layer = this.layers[i]
-
- if(this.repeat_x) {
- initx = -((this.camera_x / layer.damping) % layer.width);
- }
- else {
- initx = -(this.camera_x / layer.damping)
- }
-
- if (this.repeat_y) {
- layer.y = -((this.camera_y / layer.damping) % layer.height);
- }
- else {
- layer.y = -(this.camera_y / layer.damping);
- }
-
- layer.x = initx;
- while (layer.y < this.height) {
- while (layer.x < this.width) {
- if (layer.x + layer.width >= 0 && layer.y + layer.height >= 0) { //Make sure it's on screen
- layer.draw(); //Draw only if actually on screen, for performance reasons
- }
- layer.x = layer.x + layer.width;
-
- if (!this.repeat_x) {
- break;
- }
- }
-
- layer.y = layer.y + layer.height;
- layer.x = initx;
- if (!this.repeat_y) {
- break;
- }
- }
- }
- }
- /** Add a new layer to the parallax scroller */
- jaws.Parallax.prototype.addLayer = function(options) {
- var layer = new jaws.ParallaxLayer(options)
- layer.scaleAll(this.scale)
- this.layers.push(layer)
- }
- /** Debugstring for Parallax() */
- jaws.Parallax.prototype.toString = function() { return "[Parallax " + this.x + ", " + this.y + ". " + this.layers.length + " layers]" }
-
- /**
- * @class A single layer that's contained by Parallax()
- *
- * @property damping number, higher the number, the slower it will scroll with regards to other layers, defaults to 0
- * @constructor
- * @extends jaws.Sprite
- */
- jaws.ParallaxLayer = function ParallaxLayer(options) {
- if( !(this instanceof arguments.callee) ) return new arguments.callee( options );
-
- this.damping = options.damping || 0
- jaws.Sprite.call(this, options)
- }
- jaws.ParallaxLayer.prototype = jaws.Sprite.prototype
-
- /** Debugstring for ParallaxLayer() */
- // This overwrites Sprites toString, find another sollution.
- // jaws.ParallaxLayer.prototype.toString = function() { return "[ParallaxLayer " + this.x + ", " + this.y + "]" }
-
- return jaws;
-})(jaws || {});
-
-
-/**
- * @fileOverview A jaws.Text object with word-wrapping functionality.
- * @class jaws.Text
- * @property {integer} x Horizontal position (0 = furthest left)
- * @property {integer} y Vertical position (0 = top)
- * @property {number} alpha Transparency: 0 (fully transparent) to 1 (no transparency)
- * @property {number} angle Angle in degrees (0-360)
- * @property {string} anchor String stating how to anchor the sprite to canvas; @see Sprite#anchor
- * @property {string} text The actual text to be displayed
- * @property {string} fontFace A valid font-family
- * @property {number} fontSize The size of the text in pixels
- * @property {string} textAlign "start", "end", "left", "right", or "center"
- * @property {string} textBaseline "top", "bottom", "hanging", "middle", "alphabetic", or "ideographic"
- * @property {number} width The width of the rect() containing the text
- * @property {number} height The height of the rect() containing the text
- * @property {string} style The style to draw the text: "normal", "bold" or italic"
- * @property {boolean} wordWrap If word-wrapping should be attempted
- * @property {string} shadowColor The color of the shadow for the text
- * @property {number} shadowBlur The amount of shadow blur (length away from text)
- * @property {number} shadowOffsetX The start of the shadow from initial x
- * @property {number} shadowOffsetY The start of the shadow from initial y
- * @example
- * var text = new Text({text: "Hello world!", x: 10, y: 10})
- */
-
-var jaws = (function(jaws) {
-
- /**
- * jaws.Text constructor
- * @constructor
- * @param {object} options An object-literal collection of constructor values
- */
- jaws.Text = function(options) {
- if (!(this instanceof arguments.callee))
- return new arguments.callee(options);
-
- this.set(options);
-
- if (options.context) {
- this.context = options.context;
- }
-
- if (!options.context) { // Defaults to jaws.context
- if (jaws.context)
- this.context = jaws.context;
- }
- };
-
- /**
- * The default values of jaws.Text properties
- */
- jaws.Text.prototype.default_options = {
- x: 0,
- y: 0,
- alpha: 1,
- angle: 0,
- anchor_x: 0,
- anchor_y: 0,
- anchor: "top_left",
- damping: 1,
- style: "normal",
- fontFace: "serif",
- fontSize: 12,
- color: "black",
- textAlign: "start",
- textBaseline: "alphabetic",
- text: "",
- wordWrap: false,
- width: function(){ return jaws.width; },
- height: function() { return jaws.height; },
- shadowColor: null,
- shadowBlur: null,
- shadowOffsetX: null,
- shadowOffsetY: null,
- _constructor: null,
- };
-
- /**
- * Overrides constructor values with defaults
- * @this {jaws.Text}
- * @param {object} options An object-literal collection of constructor values
- * @returns {this}
- * @see jaws.parseOptions
- */
- jaws.Text.prototype.set = function(options) {
-
- jaws.parseOptions(this, options, this.default_options);
-
- if (this.anchor)
- this.setAnchor(this.anchor);
-
- this.cacheOffsets();
-
- return this;
- };
-
- /**
- * Returns a new instance based on the current jaws.Text object
- * @private
- * @this {jaws.Text}
- * @returns {object} The newly cloned object
- */
- jaws.Text.prototype.clone = function() {
- var constructor = this._constructor ? eval(this._constructor) : this.constructor;
- var new_sprite = new constructor(this.attributes());
- new_sprite._constructor = this._constructor || this.constructor.name;
- return new_sprite;
- };
-
- /**
- * Rotate sprite by value degrees
- * @this {jaws.Text}
- * @param {number} value The amount of the rotation
- * @returns {this} Current function scope
- */
- jaws.Text.prototype.rotate = function(value) {
- this.angle += value;
- return this;
- };
-
- /**
- * Forces a rotation-angle on sprite
- * @this {jaws.Text}
- * @param {number} value The amount of the rotation
- * @returns {this} Current function instance
- */
- jaws.Text.prototype.rotateTo = function(value) {
- this.angle = value;
- return this;
- };
-
- /**
- * Move object to position x, y
- * @this {jaws.Text}
- * @param {number} x The x position to move to
- * @param {number} y The y position to move to
- * @returns {this} Current function instance
- */
- jaws.Text.prototype.moveTo = function(x, y) {
- this.x = x;
- this.y = y;
- return this;
- };
-
- /**
- * Modify x and/or y by a fixed amount
- * @this {jaws.Text}
- * @param {type} x The additional amount to move x
- * @param {type} y The additional amount to move y
- * @returns {this} Current function instance
- */
- jaws.Text.prototype.move = function(x, y) {
- if (x)
- this.x += x;
- if (y)
- this.y += y;
- return this;
- };
-
- /**
- * Sets x
- * @param {number} value The new x value
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.setX = function(value) {
- this.x = value;
- return this;
- };
-
- /**
- * Sets y
- * @param {number} value The new y value
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.setY = function(value) {
- this.y = value;
- return this;
- };
-
- /**
- * Position sprites top on the y-axis
- * @param {number} value
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.setTop = function(value) {
- this.y = value + this.top_offset;
- return this;
- };
-
- /**
- * Position sprites bottom on the y-axis
- * @param {number} value
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.setBottom = function(value) {
- this.y = value - this.bottom_offset;
- return this;
- };
-
- /**
- * Position sprites left side on the x-axis
- * @param {number} value
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.setLeft = function(value) {
- this.x = value + this.left_offset;
- return this;
- };
-
- /**
- * Position sprites right side on the x-axis
- * @param {number} value
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.setRight = function(value) {
- this.x = value - this.right_offset;
- return this;
- };
-
- /**
- * Set new width.
- * @param {number} value The new width
- * @returns {this}
- */
- jaws.Text.prototype.setWidth = function(value) {
- this.width = value;
- this.cacheOffsets();
- return this;
- };
-
- /**
- * Set new height.
- * @param {number} value The new height
- * @returns {this}
- */
- jaws.Text.prototype.setHeight = function(value) {
- this.height = value;
- this.cacheOffsets();
- return this;
- };
-
- /**
- * Resize sprite by adding width or height
- * @param {number} width
- * @param {number} height
- * @returns {this}
- */
- jaws.Text.prototype.resize = function(width, height) {
- this.width += width;
- this.height += height;
- this.cacheOffsets();
- return this;
- };
-
- /**
- * Resize sprite to exact width/height
- * @this {jaws.Text}
- * @param {number} width
- * @param {number} height
- * @returns {this}
- */
- jaws.Text.prototype.resizeTo = function(width, height) {
- this.width = width;
- this.height = height;
- this.cacheOffsets();
- return this;
- };
-
- /**
- * The anchor could be describe as "the part of the text will be placed at x/y"
- * or "when rotating, what point of the of the text will it rotate round"
- * @param {string} value
- * @returns {this} The current function instance
- * @example
- * For example, a topdown shooter could use setAnchor("center") --> Place middle of the ship on x/y
- * .. and a sidescroller would probably use setAnchor("center_bottom") --> Place "feet" at x/y
- */
- jaws.Text.prototype.setAnchor = function(value) {
- var anchors = {
- top_left: [0, 0],
- left_top: [0, 0],
- center_left: [0, 0.5],
- left_center: [0, 0.5],
- bottom_left: [0, 1],
- left_bottom: [0, 1],
- top_center: [0.5, 0],
- center_top: [0.5, 0],
- center_center: [0.5, 0.5],
- center: [0.5, 0.5],
- bottom_center: [0.5, 1],
- center_bottom: [0.5, 1],
- top_right: [1, 0],
- right_top: [1, 0],
- center_right: [1, 0.5],
- right_center: [1, 0.5],
- bottom_right: [1, 1],
- right_bottom: [1, 1]
- };
-
- if (anchors.hasOwnProperty(value)) {
- this.anchor_x = anchors[value][0];
- this.anchor_y = anchors[value][1];
- this.cacheOffsets();
- }
- return this;
- };
-
- /**
- * Save the object's dimensions
- * @private
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.cacheOffsets = function() {
-
- this.left_offset = this.width * this.anchor_x;
- this.top_offset = this.height * this.anchor_y;
- this.right_offset = this.width * (1.0 - this.anchor_x);
- this.bottom_offset = this.height * (1.0 - this.anchor_y);
-
- if (this.cached_rect)
- this.cached_rect.resizeTo(this.width, this.height);
- return this;
- };
-
- /**
- * Returns a jaws.Rect() perfectly surrouning text.
- * @returns {jaws.Rect}
- */
- jaws.Text.prototype.rect = function() {
- if (!this.cached_rect && this.width)
- this.cached_rect = new jaws.Rect(this.x, this.y, this.width, this.height);
- if (this.cached_rect)
- this.cached_rect.moveTo(this.x - this.left_offset, this.y - this.top_offset);
- return this.cached_rect;
- };
-
- /**
- * Draw sprite on active canvas or update its DOM-properties
- * @this {jaws.Text}
- * @returns {this} The current function instance
- */
- jaws.Text.prototype.draw = function() {
- this.context.save();
- if (this.angle !== 0) {
- this.context.rotate(this.angle * Math.PI / 180);
- }
- this.context.globalAlpha = this.alpha;
- this.context.translate(-this.left_offset, -this.top_offset); // Needs to be separate from above translate call cause of flipped
- this.context.fillStyle = this.color;
- this.context.font = this.style + " " + this.fontSize + "px " + this.fontFace;
- this.context.textBaseline = this.textBaseline;
- this.context.textAlign = this.textAlign;
- if (this.shadowColor)
- this.context.shadowColor = this.shadowColor;
- if (this.shadowBlur)
- this.context.shadowBlur = this.shadowBlur;
- if (this.shadowOffsetX)
- this.context.shadowOffsetX = this.shadowOffsetX;
- if (this.shadowOffsetY)
- this.context.shadowOffsetY = this.shadowOffsetY;
- var oldY = this.y;
- var oldX = this.x;
- if (this.wordWrap)
- {
- var words = this.text.split(' ');
- var nextLine = '';
-
- for (var n = 0; n < words.length; n++)
- {
- var testLine = nextLine + words[n] + ' ';
- var measurement = this.context.measureText(testLine);
- if (this.y < oldY + this.height)
- {
- if (measurement.width > this.width)
- {
- this.context.fillText(nextLine, this.x, this.y);
- nextLine = words[n] + ' ';
- this.y += this.fontSize;
- }
- else {
- nextLine = testLine;
- }
- this.context.fillText(nextLine, this.x, this.y);
- }
- }
- }
- else
- {
- if (this.context.measureText(this.text).width < this.width)
- {
- this.context.fillText(this.text, this.x, this.y);
- }
- else
- {
- var words = this.text.split(' ');
- var nextLine = ' ';
- for (var n = 0; n < words.length; n++)
- {
- var testLine = nextLine + words[n] + ' ';
- if (this.context.measureText(testLine).width < Math.abs(this.width - this.x))
- {
- this.context.fillText(testLine, this.x, this.y);
- nextLine = words[n] + ' ';
- nextLine = testLine;
- }
- }
- }
- }
- this.y = oldY;
- this.x = oldX;
- this.context.restore();
- return this;
- };
-
- /**
- * Returns sprite as a canvas context.
- * (For certain browsers, a canvas context is faster to work with then a pure image.)
- * @public
- * @this {jaws.Text}
- */
- jaws.Text.prototype.asCanvasContext = function() {
- var canvas = document.createElement("canvas");
- canvas.width = this.width;
- canvas.height = this.height;
-
- var context = canvas.getContext("2d");
- context.mozImageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
-
- this.context.fillStyle = this.color;
- this.context.font = this.style + this.fontSize + "px " + this.fontFace;
- this.context.textBaseline = this.textBaseline;
- this.context.textAlign = this.textAlign;
- if (this.shadowColor)
- this.context.shadowColor = this.shadowColor;
- if (this.shadowBlur)
- this.context.shadowBlur = this.shadowBlur;
- if (this.shadowOffsetX)
- this.context.shadowOffsetX = this.shadowOffsetX;
- if (this.shadowOffsetY)
- this.context.shadowOffsetY = this.shadowOffsetY;
- var oldY = this.y;
- var oldX = this.x;
- if (this.wordWrap)
- {
- var words = this.text.split(' ');
- var nextLine = '';
-
- for (var n = 0; n < words.length; n++)
- {
- var testLine = nextLine + words[n] + ' ';
- var measurement = this.context.measureText(testLine);
- if (this.y < oldY + this.height)
- {
- if (measurement.width > this.width)
- {
- this.context.fillText(nextLine, this.x, this.y);
- nextLine = words[n] + ' ';
- this.y += this.fontSize;
- }
- else {
- nextLine = testLine;
- }
- this.context.fillText(nextLine, this.x, this.y);
- }
- }
- }
- else
- {
- if (this.context.measureText(this.text).width < this.width)
- {
- this.context.fillText(this.text, this.x, this.y);
- }
- else
- {
- var words = this.text.split(' ');
- var nextLine = ' ';
- for (var n = 0; n < words.length; n++)
- {
- var testLine = nextLine + words[n] + ' ';
- if (this.context.measureText(testLine).width < Math.abs(this.width - this.x))
- {
- this.context.fillText(testLine, this.x, this.y);
- nextLine = words[n] + ' ';
- nextLine = testLine;
- }
- }
- }
- }
- this.y = oldY;
- this.x = oldX;
- return context;
- };
-
- /**
- * Returns text as a canvas
- * @this {jaws.Text}
- */
- jaws.Text.prototype.asCanvas = function() {
- var canvas = document.createElement("canvas");
- canvas.width = this.width;
- canvas.height = this.height;
-
- var context = canvas.getContext("2d");
- context.mozImageSmoothingEnabled = jaws.context.mozImageSmoothingEnabled;
-
- this.context.fillStyle = this.color;
- this.context.font = this.style + this.fontSize + "px " + this.fontFace;
- this.context.textBaseline = this.textBaseline;
- this.context.textAlign = this.textAlign;
- if (this.shadowColor)
- this.context.shadowColor = this.shadowColor;
- if (this.shadowBlur)
- this.context.shadowBlur = this.shadowBlur;
- if (this.shadowOffsetX)
- this.context.shadowOffsetX = this.shadowOffsetX;
- if (this.shadowOffsetY)
- this.context.shadowOffsetY = this.shadowOffsetY;
- var oldY = this.y;
- var oldX = this.x;
- if (this.wordWrap)
- {
- var words = this.text.split(' ');
- var nextLine = '';
-
- for (var n = 0; n < words.length; n++)
- {
- var testLine = nextLine + words[n] + ' ';
- var measurement = context.measureText(testLine);
- if (this.y < oldY + this.height)
- {
- if (measurement.width > this.width)
- {
- context.fillText(nextLine, this.x, this.y);
- nextLine = words[n] + ' ';
- this.y += this.fontSize;
- }
- else {
- nextLine = testLine;
- }
- context.fillText(nextLine, this.x, this.y);
- }
- }
- }
- else
- {
- if (context.measureText(this.text).width < this.width)
- {
- this.context.fillText(this.text, this.x, this.y);
- }
- else
- {
- var words = this.text.split(' ');
- var nextLine = ' ';
- for (var n = 0; n < words.length; n++)
- {
- var testLine = nextLine + words[n] + ' ';
- if (context.measureText(testLine).width < Math.abs(this.width - this.x))
- {
- context.fillText(testLine, this.x, this.y);
- nextLine = words[n] + ' ';
- nextLine = testLine;
- }
- }
- }
- }
- this.y = oldY;
- this.x = oldX;
- return canvas;
- };
-
- /**
- * Returns Text's properties as a String
- * @returns {string}
- */
- jaws.Text.prototype.toString = function() {
- return "[Text " + this.x.toFixed(2) + ", " + this.y.toFixed(2) + ", " + this.width + ", " + this.height + "]";
- };
-
- /**
- * Returns Text's properties as a pure object
- * @returns {object}
- */
- jaws.Text.prototype.attributes = function() {
- var object = this.options; // Start with all creation time properties
- object["_constructor"] = this._constructor || "jaws.Text";
- object["x"] = parseFloat(this.x.toFixed(2));
- object["y"] = parseFloat(this.y.toFixed(2));
- object["text"] = this.text;
- object["alpha"] = this.alpha;
- object["angle"] = parseFloat(this.angle.toFixed(2));
- object["anchor_x"] = this.anchor_x;
- object["anchor_y"] = this.anchor_y;
- object["style"] = this.style;
- object["fontSize"] = this.fontSize;
- object["fontFace"] = this.fontFace;
- object["color"] = this.color;
- object["textAlign"] = this.textAlign;
- object["textBaseline"] = this.textBaseline;
- object["wordWrap"] = this.wordWrap;
- object["width"] = this.width;
- object["height"] = this.height;
- return object;
- };
-
- /**
- * Returns a JSON-string representing the properties of the Text.
- * @returns {string}
- */
- jaws.Text.prototype.toJSON = function() {
- return JSON.stringify(this.attributes());
- };
-
- return jaws;
-})(jaws || {});
-
-// Support CommonJS require()
-if (typeof module !== "undefined" && ('exports' in module)) {
- module.exports = jaws.Text;
-}
-
-if(typeof require !== "undefined") { var jaws = require("./core.js"); }
-
-/*
- * @class jaws.QuadTree
- * @property {jaws.Rect} bounds Rect(x,y,width,height) defining bounds of tree
- * @property {number} depth The depth of the root node
- * @property {array} nodes The nodes of the root node
- * @property {array} objects The objects of the root node
- * @example
- * setup:
- * var quadtree = new jaws.QuadTree();
- * update:
- * quadtree.collide(sprite or list, sprite or list, callback function);
- */
-var jaws = (function(jaws) {
-
- /**
- * Creates an empty quadtree with optional bounds and starting depth
- * @constructor
- * @param {jaws.Rect} [bounds] The defining bounds of the tree
- * @param {number} [depth] The current depth of the tree
- */
- jaws.QuadTree = function(bounds) {
- this.depth = arguments[1] || 0;
- this.bounds = bounds || new jaws.Rect(0, 0, jaws.width, jaws.height);
- this.nodes = [];
- this.objects = [];
- };
-
- /**
- * Moves through the nodes and deletes them.
- * @this {jaws.QuadTree}
- */
- jaws.QuadTree.prototype.clear = function() {
- this.objects = [];
-
- for (var i = 0; i < this.nodes.length; i++) {
- if (typeof this.nodes[i] !== 'undefined') {
- this.nodes[i].clear();
- delete this.nodes[i];
- }
- }
- };
-
- /**
- * Creates four new branches sub-dividing the current node's width and height
- * @private
- * @this {jaws.QuadTree}
- */
- jaws.QuadTree.prototype.split = function() {
- var subWidth = Math.round((this.bounds.width / 2));
- var subHeight = Math.round((this.bounds.height / 2));
- var x = this.bounds.x;
- var y = this.bounds.y;
-
- this.nodes[0] = new jaws.QuadTree(new jaws.Rect(x + subWidth, y, subWidth, subHeight), this.depth + 1);
- this.nodes[1] = new jaws.QuadTree(new jaws.Rect(x, y, subWidth, subHeight), this.depth + 1);
- this.nodes[2] = new jaws.QuadTree(new jaws.Rect(x, y + subHeight, subWidth, subHeight), this.depth + 1);
- this.nodes[3] = new jaws.QuadTree(new jaws.Rect(x + subWidth, y + subHeight, subWidth, subHeight), this.depth + 1);
- };
-
- /**
- * Returns the index of a node's branches if passed-in object fits within it
- * @private
- * @param {object} pRect An object with the properties x, y, width, and height
- * @returns {index} The index of nodes[] that matches the dimensions of passed-in object
- */
- jaws.QuadTree.prototype.getIndex = function(pRect) {
- var index = -1;
- var verticalMidpoint = this.bounds.x + (this.bounds.width / 2);
- var horizontalMidpoint = this.bounds.y + (this.bounds.height / 2);
-
- var topQuadrant = (pRect.y < horizontalMidpoint && pRect.y + pRect.height < horizontalMidpoint);
- var bottomQuadrant = (pRect.y > horizontalMidpoint);
-
- if (pRect.x < verticalMidpoint && pRect.x + pRect.width < verticalMidpoint) {
- if (topQuadrant) {
- index = 1;
- }
- else if (bottomQuadrant) {
- index = 2;
- }
- }
- else if (pRect.x > verticalMidpoint) {
- if (topQuadrant) {
- index = 0;
- }
- else if (bottomQuadrant) {
- index = 3;
- }
- }
-
- return index;
- };
-
- /**
- * Inserts an object into the quadtree, spliting it into new branches if needed
- * @param {object} pRect An object with the properties x, y, width, and height
- */
- jaws.QuadTree.prototype.insert = function(pRect) {
-
- if (!pRect.hasOwnProperty("x") && !pRect.hasOwnProperty("y") &&
- !pRect.hasOwnProperty("width") && !pRect.hasOwnProperty("height")) {
- return;
- }
-
- if (typeof this.nodes[0] !== 'undefined') {
- var index = this.getIndex(pRect);
-
- if (index !== -1) {
- this.nodes[index].insert(pRect);
- return;
- }
- }
-
- this.objects.push(pRect);
-
- if (typeof this.nodes[0] === 'undefined') {
- this.split();
- }
-
- var i = 0;
- while (i < this.objects.length) {
- var index = this.getIndex(this.objects[i]);
- if (index !== -1) {
- this.nodes[index].insert(this.objects.splice(i, 1)[0]);
- }
- else {
- i++;
- }
- }
-
- };
-
- /**
- * Returns those objects on the branch matching the position of the passed-in object
- * @param {object} pRect An object with properties x, y, width, and height
- * @returns {array} The objects on the same branch as the passed-in object
- */
- jaws.QuadTree.prototype.retrieve = function(pRect) {
-
- if (!pRect.hasOwnProperty("x") && !pRect.hasOwnProperty("y") &&
- !pRect.hasOwnProperty("width") && !pRect.hasOwnProperty("height")) {
- return;
- }
-
- var index = this.getIndex(pRect);
- var returnObjects = this.objects;
- if (typeof this.nodes[0] !== 'undefined') {
- if (index !== -1) {
- returnObjects = returnObjects.concat(this.nodes[index].retrieve(pRect));
- } else {
- for (var i = 0; i < this.nodes.length; i++) {
- returnObjects = returnObjects.concat(this.nodes[i].retrieve(pRect));
- }
- }
- }
- return returnObjects;
- };
-
- /**
- * Checks for collisions between objects by creating a quadtree, inserting one or more objects,
- * and then comparing the results of a retrieval against another single or set of objects.
- *
- * With the callback argument, it will call a function and pass the items found colliding
- * as the first and second argument.
- *
- * Without the callback argument, it will return a boolean value if any collisions were found.
- *
- * @param {object|array} list1 A single or set of objects with properties x, y, width, and height
- * @param {object|array} list2 A single or set of objects with properties x, y, width, and height
- * @param {function} [callback] The function to call per collision
- * @returns {boolean} If the items (or any within their sets) collide with one another
- */
- jaws.QuadTree.prototype.collide = function(list1, list2, callback) {
-
- var overlap = false;
- var tree = new jaws.QuadTree();
- var temp = [];
-
- if (!(list1.forEach)) {
- temp.push(list1);
- list1 = temp;
- }
-
- if (!(list2.forEach)) {
- temp = [];
- temp.push(list2);
- list2 = temp;
- }
-
- list2.forEach(function(el) {
- tree.insert(el);
- });
-
- list1.forEach(function(el) {
- if(jaws.collide(el, tree.retrieve(el), callback)) {
- overlap = true;
- }
- });
-
- tree.clear();
- return overlap;
- };
-
- return jaws;
-
-})(jaws || {});
-
-// Support CommonJS require()
-if (typeof module !== "undefined" && ('exports' in module)) {
- module.exports = jaws.QuadTree;
-}
-;window.addEventListener("load", function() { if(jaws.onload) jaws.onload(); }, false); \ No newline at end of file
generated by cgit v0.10.2 at 2026-01-08 11:41:21 (GMT)