apps: snake: fix a couple of errors
Signed-off-by: Johannes Wache <jbwa@posteo.de>
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726d5c8554
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6d3f2126bf
1 changed files with 25 additions and 35 deletions
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@ -90,7 +90,12 @@ class SnakeGameApp():
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def foreground(self):
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"""Activate the application."""
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self._draw()
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wasp.watch.drawable.fill()
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if self.running:
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self.update()
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else:
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self.snake.show()
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wasp.watch.drawable.fill(x=self.food[0],y=self.food[1],w=15,h=15,bg=0x00ff)
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wasp.system.request_event(wasp.EventMask.TOUCH |
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wasp.EventMask.SWIPE_UPDOWN |
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wasp.EventMask.SWIPE_LEFTRIGHT)
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@ -113,35 +118,27 @@ class SnakeGameApp():
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elif event[0] == wasp.EventType.RIGHT:
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self.snake.set_dir(15,0)
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else:
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self.running = False
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return True
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def tick(self, ticks):
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"""Notify the application that its periodic tick is due."""
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self.update()
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def food_location(self):
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x = randint(0,15) * 15
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y = randint(0,15) * 15
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self.food = [x,y]
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def _draw(self):
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wasp.watch.drawable.fill()
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if self.running:
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self.update()
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def update(self):
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draw = wasp.watch.drawable
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"""Draw the display from scratch."""
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if (self.snake.eat(self.food)):
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self.food_location()
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draw.fill(x=self.food[0],y=self.food[1],w=15,h=15,bg=0x00ff)
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self.snake.update()
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if (self.snake.end_game()):
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if self.snake.len > self.highscore:
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self.highscore = self.snake.len
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if len(self.snake.body) > self.highscore:
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self.highscore = len(self.snake.body)
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self.running = False
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wasp.watch.vibrator.pulse()
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self.snake = Snake()
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@ -152,41 +149,43 @@ class SnakeGameApp():
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draw.string('Highscore: '+str(self.highscore-1),0,180,width=240)
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draw.reset()
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return True
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self.snake.show()
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if self.running:
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self.snake.show()
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draw.fill(x=self.food[0],y=self.food[1],w=15,h=15,bg=0x00ff)
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return True
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# Based on https://www.youtube.com/watch?v=OMoVcohRgZA
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class Snake():
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def __init__(self):
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self.body = []
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self.body.append([120,120])
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self.body = [[120,120]]
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self.xdir = 0
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self.ydir = 0
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self.len = 1
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self.justate = False
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self.oldtail = [0,0]
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def set_dir(self,x,y):
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self.xdir = x
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self.ydir = y
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def update(self):
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def update(self):
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self.oldtail = self.body[0].copy()
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head = self.body[-1].copy()
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self.body = self.body[1:]
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if not self.justate:
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self.body = self.body[1:]
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self.justate = False
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head[0] += self.xdir
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head[1] += self.ydir
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self.body.append(head)
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def grow(self):
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head = self.body[-1]
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self.len += 1
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self.body.append(head)
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#self.update()
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def eat(self,pos):
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x = self.body[-1][0]
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y = self.body[-1][1]
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if (x == pos[0] and y == pos[1]):
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self.grow()
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self.justate = True
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# Color food white so it appears as a body part:
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wasp.watch.drawable.fill(x=(self.body[-1][0]),y=(self.body[-1][1]),w=15,h=15,bg=0x0000)
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wasp.watch.drawable.fill(x=self.body[-1][0]+1,y=self.body[-1][1]+1,w=13,h=13,bg=0xffff)
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return True
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return False
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@ -194,23 +193,14 @@ class Snake():
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x = self.body[-1][0]
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y = self.body[-1][1]
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if (x >= 240 or x < 0) or (y >= 240 or y < 0):
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print("Inside 1")
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return True
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for i in range(len(self.body)-1):
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part = self.body[i]
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if (part[0] == x and part[1] == y):
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print("Inside 2")
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return True
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return False
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def show(self):
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draw = wasp.watch.drawable
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if self.len == 1: #vanish old and show new
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draw.fill(x=(self.body[0][0]-self.xdir),y=(self.body[0][1]-self.ydir),w=15,h=15,bg=0x0000)
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draw.fill(x=self.body[0][0]+1,y=self.body[0][1]+1,w=13,h=13,bg=0xffff)
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else: # vanish last and show first
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draw.fill(x=self.body[0][0],y=self.body[0][1],w=15,h=15,bg=0x0000)
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draw.fill(x=self.body[-1][0]+1,y=self.body[-1][1]+1,w=13,h=13,bg=0xffff)
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#for i in range(self.len):
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# draw.fill(x=self.body[i][0]+1,y=self.body[i][1]+1,w=13,h=13,bg=0xffff)
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draw.fill(x=self.oldtail[0],y=self.oldtail[1],w=15,h=15,bg=0x0000)
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draw.fill(x=self.body[-1][0]+1,y=self.body[-1][1]+1,w=13,h=13,bg=0xffff)
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