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# SPDX-License-Identifier: LGPL-3.0-or-later
# Copyright (C) 2020 Johannes Wache
"""
Snake Game
~~~~~~~~~~
This is a classic arcade game called snake. You have to direct the white snake to the food block (blue dot) by swiping in the desired direction. You must not hit the border or the snake's body itself.
Every time the snake eats the food, its length increases by 1. (In the current version there is an error that the length of the snake is not increased by 1 when the snake gets the food for the first time. This has to be fixed).
Once the game is over, you can try again by tapping on the screen and then swipe in the direction you want to move. If you want to leave the game, simply wipe in any direction once the game is over.
And now: Have fun playing! :)
"""
# 2-bit RLE, generated from res/snake_icon.png, 856 bytes
snake_game = (
b'\x02'
b'`.'
b'\x19\x01\x16\x01?\n\x01@\x02AAQA\x80\x01\x81'
b'\x14\x015\x81\xc0\x07\xc1@\x03R\xc1\x80\x02\x81\x01\xc0'
b'$\xc1@IA\xceA\xc1\x016\x80\x01\x81\xc0\x03\xc1'
b'\xc1\xd1\xc1@\x02A\x01\x80\xff\x81\x81\x8e\x81\x81\xc0$'
b'\xc16@\x01A\x80\x03\x81\x81\x91\x81\xc0\x02\xc1\x01@'
b'\xffAQ\x80$\x816\xc0\x01\xc1@\x03AAQA'
b'\x80\x02\x81\x01\xc0\xdf\xc1@\xffANAA\x80$\x81'
b'6\xc0\x01\xc1@\x03AAQA\x80\x02\x81\x01\xc0\xdf'
b'\xc1@\xffANAA\x80$\x816\xc0\x01\xc1@\x03'
b'AAQA\x80\x02\x81\x01\xc0\xdf\xc1@\xffANA'
b'A\x80$\x816\xc0\x01\xc1@\x03AAQA\x80\x02'
b'\x81\x01\xc0\xdf\xc1@\xffANAA\x80$\x816\xc0'
b'\x01\xc1@\x03AAQA\x80\x02\x81\x01\xc0\xdf\xc1@'
b'\xffANAA\x80$\x816\xc0\x01\xc1@\x03AA'
b'QA\x80\x02\x81\x01\xc0\xdf\xc1@\xffANAA\x80'
b'$\x816\xc0\x01\xc1@\x03AAQA\x80\x02\x81\x01'
b'\xc0\xdf\xc1@\xffANAA\x80$\x816\xc0\x01\xc1'
b'@\x03AAQA\x80\x02\x81\x01\xc0\xdf\xc1@\xffA'
b'NAA\x80$\x816\xc0\x01\xc1@\x03AAQA'
b'\x80\x02\x81\x01\xc0\xdf\xc1@\xffANAA\x80$\x81'
b'6\xc0\x01\xc1@\x03AAQA\x80\x02\x81\x01\xc0\xdf'
b'\xc1@\xffANAA\x80$\x816\xc0\x01\xc1@\x03'
b'AAQA\x80\x02\x81\x01\xc0\xdf\xc1@\xffANA'
b'A\x80$\x816\xc0\x01\xc1@\x03AAQA\x80\x02'
b'\x81\x01\xc0\xdf\xc1@\xffANAA\x80$\x816\xc0'
b'\x01\xc1@\x03AAQA\x80\x02\x81\x01\xc0\xdf\xc1@'
b'\xffANAA\x80$\x816\xc0\x01\xc1@\x03AA'
b'QA\x80\x02\x81\x01\xc0\xdf\xc1@\xffANAA\x80'
b'$\x816\xc0\x01\xc1@\x03AAQA\x80\x02\x81\x01'
b'\xc0\xff\xc1\xd1@IA6\x80\x01\x81\xc0\x03\xc1\xc1\xd1'
b'\xc1@\x02A\x01\x80\xb6\x81\xc0\xdb\xc1\xce\xc1\xc1@$'
b'A6\x80\x01\x81\xc0\x03\xc1\xd2\xc1@\x02A\x01\x01\x01'
b'\x0e\x01\x01\x016\x01\x81\x81\x01\x0e\x01\x01\x81\x01\x14\x01'
b'4\x01\x01\x01\x80H\x81\xc0I\xc1\x8e\xc1\x81\x01\x01\x01'
b'\xc1\xc1\xce\xc1\xc1\x017\x01@\xffAQ\x80$\x81\x01'
b'\x01AQ\x817\x01AANAA\x81\x01\x01AA'
b'NAA\x817\x01\xc0\xdf\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01\xc1ANAA\x81\x01\x01'
b'\xc1ANAA\x817\x01AQ@IA\x01\x01\x80'
b'\xff\x81\x91A7\x01\xc0\xb6\xc1@\xdbANAA\x80'
b'$\x81\x01\x01\xc1ANAA\x818\x12\x03\x12?\r'
b'\x01\x14\x01?\x9c'
)
import wasp, time
from random import randint
from apps.launcher import LauncherApp
class SnakeGameApp():
NAME = 'Snake'
ICON = snake_game
def __init__(self):
self.running = True
self.snake = Snake()
self.food_location()
self.highscore = 1
def foreground(self):
"""Activate the application."""
self._draw()
wasp.system.request_event(wasp.EventMask.TOUCH |
wasp.EventMask.SWIPE_UPDOWN |
wasp.EventMask.SWIPE_LEFTRIGHT)
wasp.system.request_tick(250)
def touch(self,event):
if not self.running:
self.running = True
wasp.watch.drawable.fill()
def swipe(self, event):
if self.running:
"""Notify the application of a touchscreen swipe event."""
if event[0] == wasp.EventType.UP:
self.snake.set_dir(0,-15)
elif event[0] == wasp.EventType.DOWN:
self.snake.set_dir(0,15)
elif event[0] == wasp.EventType.LEFT:
self.snake.set_dir(-15,0)
elif event[0] == wasp.EventType.RIGHT:
self.snake.set_dir(15,0)
else:
self.running = False
return True
def tick(self, ticks):
"""Notify the application that its periodic tick is due."""
self.update()
def food_location(self):
x = randint(0,15) * 15
y = randint(0,15) * 15
self.food = [x,y]
def _draw(self):
wasp.watch.drawable.fill()
if self.running:
self.update()
def update(self):
draw = wasp.watch.drawable
"""Draw the display from scratch."""
if (self.snake.eat(self.food)):
self.food_location()
draw.fill(x=self.food[0],y=self.food[1],w=15,h=15,bg=0x00ff)
self.snake.update()
if (self.snake.end_game()):
if self.snake.len > self.highscore:
self.highscore = self.snake.len
self.running = False
wasp.watch.vibrator.pulse()
self.snake = Snake()
draw.fill()
draw.set_color(0xf000)
draw.string('GAME', 0, 60, width=240)
draw.string('OVER', 0, 98, width=240)
draw.string('Highscore: '+str(self.highscore-1),0,180,width=240)
draw.reset()
return True
self.snake.show()
return True
# Based on https://www.youtube.com/watch?v=OMoVcohRgZA
class Snake():
def __init__(self):
self.body = []
self.body.append([120,120])
self.xdir = 0
self.ydir = 0
self.len = 1
def set_dir(self,x,y):
self.xdir = x
self.ydir = y
def update(self):
head = self.body[-1].copy()
self.body = self.body[1:]
head[0] += self.xdir
head[1] += self.ydir
self.body.append(head)
def grow(self):
head = self.body[-1]
self.len += 1
self.body.append(head)
#self.update()
def eat(self,pos):
x = self.body[-1][0]
y = self.body[-1][1]
if (x == pos[0] and y == pos[1]):
self.grow()
return True
return False
def end_game(self):
x = self.body[-1][0]
y = self.body[-1][1]
if (x >= 240 or x < 0) or (y >= 240 or y < 0):
print("Inside 1")
return True
for i in range(len(self.body)-1):
part = self.body[i]
if (part[0] == x and part[1] == y):
print("Inside 2")
return True
return False
def show(self):
draw = wasp.watch.drawable
if self.len == 1: #vanish old and show new
draw.fill(x=(self.body[0][0]-self.xdir),y=(self.body[0][1]-self.ydir),w=15,h=15,bg=0x0000)
draw.fill(x=self.body[0][0]+1,y=self.body[0][1]+1,w=13,h=13,bg=0xffff)
else: # vanish last and show first
draw.fill(x=self.body[0][0],y=self.body[0][1],w=15,h=15,bg=0x0000)
draw.fill(x=self.body[-1][0]+1,y=self.body[-1][1]+1,w=13,h=13,bg=0xffff)
#for i in range(self.len):
# draw.fill(x=self.body[i][0]+1,y=self.body[i][1]+1,w=13,h=13,bg=0xffff)
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