Oct 14, 2022
diff --git a/1_snake_game/5_snake_eats_apple_and_score.py b/1_snake_game/5_snake_eats_apple_and_score.py

 SIZE = 40


 class Apple:
    def __init__(self, parent_screen):
        self.parent_screen = parent_screen
        pygame.display.flip()

    def move(self):
        self.x = random.randint(1,25)*SIZE
        self.y = random.randint(1,20)*SIZE
        self.x = random.randint(1, 25) * SIZE
        self.y = random.randint(1, 20) * SIZE


 class Snake:
    def __init__(self, parent_screen, length):
        self.parent_screen = parent_screen
        self.image = pygame.image.load("resources/block.jpg").convert()
        self.direction ='down'
        self.direction ="down"

        self.length = length
        self.x = [40]*length
        self.y = [40]*length
        self.x = [40] *length
        self.y = [40] *length

    def move_left(self):
        self.direction ='left'
        self.direction ="left"

    def move_right(self):
        self.direction ='right'
        self.direction ="right"

    def move_up(self):
        self.direction ='up'
        self.direction ="up"

    def move_down(self):
        self.direction ='down'
        self.direction ="down"

    def walk(self):
        # update body
        for i in range(self.length-1,0,-1):
            self.x[i] = self.x[i-1]
            self.y[i] = self.y[i-1]
        for i in range(self.length - 1, 0,-1):
            self.x[i] = self.x[i -1]
            self.y[i] = self.y[i -1]

        # update head
        if self.direction =='left':
        if self.direction =="left":
            self.x[0] -= SIZE
        if self.direction =='right':
        if self.direction =="right":
            self.x[0] += SIZE
        if self.direction =='up':
        if self.direction =="up":
            self.y[0] -= SIZE
        if self.direction =='down':
        if self.direction =="down":
            self.y[0] += SIZE

        self.draw()
        self.x.append(-1)
        self.y.append(-1)


 class Game:
    def __init__(self):
        pygame.init()
        return False

    def display_score(self):
        font = pygame.font.SysFont('arial',30)
        score = font.render(f"Score: {self.snake.length}",True,(200,200,200))
        self.surface.blit(score,(850,10))
        font = pygame.font.SysFont("arial",30)
        score = font.render(f"Score: {self.snake.length}",True,(200,200,200))
        self.surface.blit(score,(850,10))

    def play(self):
        self.snake.walk()
        self.apple.draw()
        self.display_score()
        pygame.display.flip()

        if self.is_collision(self.snake.x[0], self.snake.y[0], self.apple.x, self.apple.y):
        if self.is_collision(
            self.snake.x[0], self.snake.y[0], self.apple.x, self.apple.y
        ):
            self.snake.increase_length()
            self.apple.move()


    def run(self):
        running = True


            self.play()

            time.sleep(.2)
            time.sleep(0.2)

 if __name__ == '__main__':

 if __name__ == "__main__":
    game = Game()
    game.run()
Original file line number	Diff line number	Diff line change
Expand Up		@@ -7,6 +7,7 @@

		SIZE = 40


		class Apple:
		def __init__(self, parent_screen):
		self.parent_screen = parent_screen
Expand All		@@ -19,45 +20,46 @@ def draw(self):
		pygame.display.flip()

		def move(self):
		self.x = random.randint(1,25)*SIZE
		self.y = random.randint(1,20)*SIZE
		self.x = random.randint(1, 25) * SIZE
		self.y = random.randint(1, 20) * SIZE


		class Snake:
		def __init__(self, parent_screen, length):
		self.parent_screen = parent_screen
		self.image = pygame.image.load("resources/block.jpg").convert()
		self.direction ='down'
		self.direction ="down"

		self.length = length
		self.x = [40]*length
		self.y = [40]*length
		self.x = [40] *length
		self.y = [40] *length

		def move_left(self):
		self.direction ='left'
		self.direction ="left"

		def move_right(self):
		self.direction ='right'
		self.direction ="right"

		def move_up(self):
		self.direction ='up'
		self.direction ="up"

		def move_down(self):
		self.direction ='down'
		self.direction ="down"

		def walk(self):
		# update body
		for i in range(self.length-1,0,-1):
		self.x[i] = self.x[i-1]
		self.y[i] = self.y[i-1]
		for i in range(self.length - 1, 0,-1):
		self.x[i] = self.x[i -1]
		self.y[i] = self.y[i -1]

		# update head
		if self.direction =='left':
		if self.direction =="left":
		self.x[0] -= SIZE
		if self.direction =='right':
		if self.direction =="right":
		self.x[0] += SIZE
		if self.direction =='up':
		if self.direction =="up":
		self.y[0] -= SIZE
		if self.direction =='down':
		if self.direction =="down":
		self.y[0] += SIZE

		self.draw()
Expand All		@@ -74,6 +76,7 @@ def increase_length(self):
		self.x.append(-1)
		self.y.append(-1)


		class Game:
		def __init__(self):
		pygame.init()
Expand All		@@ -90,21 +93,22 @@ def is_collision(self, x1, y1, x2, y2):
		return False

		def display_score(self):
		font = pygame.font.SysFont('arial',30)
		score = font.render(f"Score: {self.snake.length}",True,(200,200,200))
		self.surface.blit(score,(850,10))
		font = pygame.font.SysFont("arial",30)
		score = font.render(f"Score: {self.snake.length}",True,(200,200,200))
		self.surface.blit(score,(850,10))

		def play(self):
		self.snake.walk()
		self.apple.draw()
		self.display_score()
		pygame.display.flip()

		if self.is_collision(self.snake.x[0], self.snake.y[0], self.apple.x, self.apple.y):
		if self.is_collision(
		self.snake.x[0], self.snake.y[0], self.apple.x, self.apple.y
		):
		self.snake.increase_length()
		self.apple.move()


		def run(self):
		running = True

Expand All		@@ -131,10 +135,9 @@ def run(self):

		self.play()

		time.sleep(.2)
		time.sleep(0.2)

		if __name__ == '__main__':

		if __name__ == "__main__":
		game = Game()
		game.run()