save project

snake.py

@@ -3,21 +3,50 @@ from pygame import locals
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 background=pygame.image.load("bg.png")
-a=pygame.image.load("body.png")
-b=pygame.image.load("body.png")
-c=pygame.image.load("body.png")
-d=pygame.image.load("up.png")
-e=pygame.image.load("apple.png")
+body=pygame.image.load("body.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")
+apple=pygame.image.load("apple.png")
 # 创建一个窗口
 screen = pygame.display.set_mode((800,600))
-screen.blit(background,(0,0))
+FPS=pygame.time.Clock()
+x,y=240,120
+position=[(180,90),(180,120),(210,120),(x,y)]
+setheading="right"
+snake_head=right
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
-    screen.blit(a,(210,120))
-    screen.blit(b,(180,120))
-    screen.blit(c,(180,90))
-    screen.blit(d,(180,60))
-    screen.blit(e,(90,60))
-    pygame.display.update()
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+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheading!="left":
+                setheading='right'
+                snake_head=right
+            if event.key == locals.K_LEFT and setheading!="right":
+                setheading='left'
+                snake_head=left
+            if event.key == locals.K_UP and setheading!="down":
+                setheading='up'
+                snake_head=up
+            if event.key == locals.K_DOWN and setheading!="up":
+                setheading='down'
+                snake_head=down
+    if setheading == "right":
+        x += 30
+    elif setheading=="left":
+        x -= 30
+    elif setheading=="up":
+        y -= 30
+    elif setheading=="down":
+        y += 30
+    position.append((x,y))
+    position.pop(0)  
+    screen.blit(background,(0,0))
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    screen.blit(snake_head,(x,y))
+    screen.blit(apple,(270,270))
+    pygame.display.update()
+    FPS.tick(3)
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