save project

snake.py

+import pygame
+from pygame import locals
+from random import *
+# 初始化pygame，为使用pygame做准备
+pygame.init()
+
+# 创建一个窗口
+screen = pygame.display.set_mode((660,480))
+bg = pygame.image.load("bg.png")
+right = pygame.image.load("right.png")
+left = pygame.image.load("left.png")
+up = pygame.image.load("up.png")
+down = pygame.image.load("down.png")
+food = pygame.image.load("apple.png")
+body = pygame.image.load("body.png")
+FPS = pygame.time.Clock()
+x,y = 240,120
+position = [(180,90),(180,120),(210,120),(x,y)]
+setheading = "right"
+snake_heading = right
+a_x = 360
+a_y = 300
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            exit()
+        elif event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading != 'left':
+                setheading = 'right'
+                snake_heading = right
+            elif event.key == locals.K_LEFT and setheading != 'right':
+                setheading = 'left'
+                snake_heading = left
+            elif event.key == locals.K_UP and setheading != 'down':
+                setheading = 'up'
+                snake_heading = up
+            else:
+                setheading = 'down'
+                snake_heading = down
+    
+    if setheading == 'right':
+        x += 30
+    elif setheading == 'left':
+        x -= 30
+    elif setheading == 'up':
+        y -= 30
+    else:
+        y += 30
+    
+    position.append((x,y))
+    last = position[0]
+    position.pop(0)
+    screen.blit(bg,(0,0))
+
+    screen.blit(snake_heading,position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    
+    if x == a_x and y == a_y:
+        a_x = randint(0,21)*30
+        a_y = randint(0,15)*30
+        position.insert(0,last)
+        screen.blit(body,last)
+    screen.blit(food,(a_x,a_y))
+    for i in range(len(position)-1):
+        if (x,y) == position[i]:
+            exit()
+    pygame.display.update()
+    FPS.tick(3)
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