save project

snake.py

@@ -7,55 +7,59 @@ pygame.init()
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
 
 
-FPSCLOCK = pygame.time.Clock()
-
+FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 # 背景
 # 背景
 background = pygame.image.load('bg.png')
 background = pygame.image.load('bg.png')
-right = pygame.image.load('right.png')
-food = pygame.image.load('apple.png')
+right = pygame.image.load('right.png')      # 头 朝右
+food = pygame.image.load('apple.png')       # 食物 苹果
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
 left = pygame.image.load('left.png')
 left = pygame.image.load('left.png')
 up = pygame.image.load('up.png')
 up = pygame.image.load('up.png')
 down = pygame.image.load('down.png')
 down = pygame.image.load('down.png')
-x,y = 240, 120   
-position = [(180,90),(180,120),(210,210),(x,y)]
+
+x, y = 240, 120
+position = [(180, 90), (180, 120), (210, 120), (x, y)]
+
 setheading = "right"
 setheading = "right"
 snake_head = right
 snake_head = right
+
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         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()
         elif event.type == locals.KEYDOWN:
         elif event.type == locals.KEYDOWN:
-            if event.key == locals.K_RIGHT and setheading !="left":
+            if event.key == locals.K_RIGHT and setheading != "left":
                 setheading = 'right'
                 setheading = 'right'
                 snake_head = right
                 snake_head = right
-            if event.key == locals.K_LEFT and setheading !="right":
+            if event.key == locals.K_LEFT and setheading != "right":
                 setheading = 'left'
                 setheading = 'left'
                 snake_head = left
                 snake_head = left
-            if event.key == locals.K_UP and setheading !="down":
+            if event.key == locals.K_UP and setheading != "down":
                 setheading = 'up'
                 setheading = 'up'
                 snake_head = up
                 snake_head = up
-            if event.key == locals.K_DOWN and setheading !="up":
+            if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 setheading = 'down'
                 snake_head = down
                 snake_head = down
-        if setheading == "right":
-            x += 30
-        elif setheading == "left":
-            x -= 30
-        elif setheading == "up":
-            y -= 30
-        else:
-            y +=30
-    position.append((x,y))
-    position.pop(0)    
+
+    # 设置贪吃蛇的头部坐标
+    if setheading == "right":
+        x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
+    position.append((x, y))
+    position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right,position[-1])
-    for i in range(len(position)-1):
-        screen.blit(body,position[i])
+    # 将贪吃蛇的头画上去
+    screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])
 
 
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))