save project

snake.py

+import pygame
+from pygame import locals
+#pygame时钟，控制游戏速度（帧数）
+FPSCLOCK = pygame.time.Clock()
+# 初始化pygame，为使用硬件做准备
+pygame.init()
+
+# 创建一个窗口
+screen = pygame.display.set_mode((660, 480),0,32)
+
+# 背景
+background = pygame.image.load('bg.png')
+right = pygame.image.load('right.png')
+food = pygame.image.load('apple.png')
+body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
+
+#贪吃蛇位置信息(初始：贪吃蛇四段身体四个坐标)
+x,y = 240,120
+position = [(180, 90),(180, 120),(210, 120),(x,y)]
+#初始化朝向
+setheading = "right"
+snake_head = right
+
+while True:
+    for event in pygame.event.get():
+        #检测是否关闭窗口
+        if event.type == locals.QUIT:
+            # 接收到退出事件后退出程序
+            exit()
+        #检测按键，控制贪吃蛇运动方向.注意：贪吃蛇不可掉头
+        elif event.type == locals.KEYDOWN:#如果产生按键事件，则进一步判断所按按键
+            if event.key == locals.K_RIGHT and setheading != "left":#不可掉头
+                setheading = "right"
+                snake_head = right
+            if event.key == locals.K_LEFT and setheading != "right":#不可掉头
+                setheading = "left"
+                snake_head = left
+            if event.key == locals.K_DOWN and setheading != "up":#不可掉头
+                setheading = "down"
+                snake_head = down
+            if event.key == locals.K_UP and setheading != "down":#不可掉头
+                setheading = "up"
+                snake_head = up
+    #设置贪吃蛇头部坐标
+    if setheading == "right":     
+        x += 30  #向右移动
+    elif setheading == "left":
+        x -= 30  #向右移动
+    elif setheading == "up":
+        y -= 30
+    else :
+        y += 30
+
+    position.append((x,y))
+    position.pop(0)
+
+    # 将背景图画上去
+    screen.blit(background, (0, 0))
+    # 将贪吃蛇画上去
+    screen.blit(right, position[-1]) #列表最后一个
+    # 将贪吃蛇的身体画上去
+    for i in range(len(position)-1):
+        screen.blit(body,position[i])
+    '''
+    screen.blit(body, position[2])  
+    screen.blit(body, position[1])
+    screen.blit(body, position[0])
+    '''
+    # 将果实画上去
+    screen.blit(food, (360, 300))
+    # 刷新画面
+    pygame.display.update()
+    FPSCLOCK.tick(3)
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