save project

snake.py

@@ -8,6 +8,8 @@ pygame.init()
 screen = pygame.display.set_mode((800, 600))
 screen = pygame.display.set_mode((800, 600))
 x=240
 x=240
 y=120
 y=120
+setheading="r"
+position=[(150,120),(180,120),(210,120),(x,y)]
 # 背景
 # 背景
 FPSCLOCK=pygame.time.Clock()
 FPSCLOCK=pygame.time.Clock()
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
@@ -20,17 +22,36 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_DOWN:
+                setheading='d'
+            if event.key==locals.K_UP:
+                setheading='u'
+            if event.key==locals.K_RIGHT:
+                setheading='r'
+            if event.key==locals.K_LEFT:
+                setheading='l'
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
-    screen.blit(right,(x,y))
-    x+=0.5
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
+    screen.blit(right,position[len(position)-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (x-30, y))
-    screen.blit(body, (x-60, y))
-    screen.blit(body, (x-90, y))
+    for i in range(len(position)-2,-1,-1):
+        screen.blit(body,position[i])
+
+    if setheading=="r":
+        x+=30
+    if setheading=="l":
+        x-=30
+    if setheading=="u":
+        y-=30
+    if setheading=="d":
+        y+=30
     # 将果实画上去
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food,(120,190))
+
+    position.append((x,y))
+    position.pop(0)
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(60)
+    FPSCLOCK.tick(30ss)
\ No newline at end of file