class Application(Frame):
# class attributes
matrix = [[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]
WIDTH = 1000
HEIGHT = 700
IMAGE_SIZE = 60
def __init__(self, window):
super().__init__(window)
self.grid() # display
#build map
map = Map(self.matrix, 50)
self.WIDTH = map.getScreenWidth()
self.HEIGHT = map.getScreenHeight()
# Canvas - private instance variable
self.__canvas = Canvas(self, width = self.WIDTH, height = self.HEIGHT, bg = "white")
self.__canvas.grid()
# Images - private instance variable
self.snake = Snake(self.__canvas, 5, map.num2pixel(5), map.num2pixel(6))
self.food = Sprite("goomba.gif", self.__canvas, 300, 300)
# bind keyboard
self.__canvas.bind("<Key>", self.key)
# focus input on canvas
self.__canvas.focus_set()
self.start()
def start(self):
self.score = StringVar(self, 0)
self.scoreVal = 0
self.scoreText = self.__canvas.create_text(self.WIDTH - 120, self.HEIGHT/10, font = "Times 20 bold" ,text="score:")
self.scoreText = self.__canvas.create_text(self.WIDTH - 50, self.HEIGHT/10, font = "Times 20 bold" ,text=self.score.get())
self.update()
def update(self):
gameOver = False
self.__canvas.itemconfig(self.scoreText, text = self.score.get())
self.snake.snakeMove(self.snake.cur_dir)
collider = Collider(self.__canvas)
if collider.hasCollision(self.snake.spriteList[0].spriteEntity, self.food.spriteEntity):
self.snake.eat()
self.food.kill()
self.randomFood()
self.scoreVal += 1
self.score.set(self.scoreVal)
for i in range(1, len(self.snake.spriteList)):
if collider.hasCollision(self.snake.spriteList[0].spriteEntity, self.snake.spriteList[i].spriteEntity):
gameOver = True
if not gameOver:
self.snake.snakeOffScreen(self.WIDTH, self.HEIGHT, self.IMAGE_SIZE)
self.after(150, self.update)
else:
text = self.__canvas.create_text(self.WIDTH/2, self.HEIGHT/2, font = "Times 30 bold" ,text="Game Over")
def randomFood(self):
row = int(self.HEIGHT/self.IMAGE_SIZE)
col = int(self.WIDTH/self.IMAGE_SIZE)
allPos = [i for i in range(row*col)]
invalidPos = []
for sprite in self.snake.spriteList:
invalidPos.append(int(sprite.y/self.IMAGE_SIZE) * row + int(sprite.x/self.IMAGE_SIZE))
valid = []
for x in allPos:
if x not in invalidPos:
valid.append(x)
x = int(valid[random.randint(0, len(valid)-1)]%col) * self.IMAGE_SIZE
y = int(valid[random.randint(0, len(valid)-1)]/col) * self.IMAGE_SIZE
self.food = Sprite("goomba.gif", self.__canvas, x,y)
# # set up our key bindings
def key(self, event):
if event.keysym == "Up" or event.keysym == "w":
self.snake.cur_dir = -1
elif event.keysym == "Down" or event.keysym == "s":
self.snake.cur_dir = 1
elif event.keysym == "Left" or event.keysym == "a":
self.snake.cur_dir = -2
elif event.keysym == "Right" or event.keysym == "d":
self.snake.cur_dir = 2
