save project

snake.py

 import pygame
 import pygame
 import sys
 import sys
+import random
 # 初始化pygame，为使用pygame做准备
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 pygame.init()
-
+head_x = 60
+head_y = 60
+position = [(0,0),(30,0),(30,30),(head_x,head_y)]
 # 创建一个窗口
 # 创建一个窗口
 screen = pygame.display.set_mode((1080,550))
 screen = pygame.display.set_mode((1080,550))
 
 
 background = pygame.image.load("r_c.png")
 background = pygame.image.load("r_c.png")
 body = pygame.image.load("body.png")
 body = pygame.image.load("body.png")
-right = pygame.image.load("right.png")
 apple = pygame.image.load("apple.png")
 apple = pygame.image.load("apple.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")
+
+
+FPSCLOCK = pygame.time.Clock()
+heading = "right"
+snake_head = right
+apple_x = 540
+apple_y = 150
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == pygame.QUIT:
         if event.type == pygame.QUIT:
             sys.exit()
             sys.exit()
+        if event.type == pygame.KEYDOWN:
+            if event.key ==pygame.K_w and heading != "down":
+                heading = "up"
+            if event.key ==pygame.K_s and heading != "up":
+                heading = "down"
+            if event.key ==pygame.K_a and heading != "right":
+                heading = "left"
+            if event.key ==pygame.K_d and heading != "left":
+                heading = "right"
+
+
     screen.blit(background,(0,0))
     screen.blit(background,(0,0))
-    screen.blit(body,(0,0))
-    screen.blit(body,(30,0))
-    screen.blit(body,(30,30))
-    screen.blit(body,(30,60))
-    screen.blit(right,(60,60))
-    screen.blit(apple,(525,140))
-    pygame.display.update()
+    screen.blit(apple,(apple_x,apple_y))
+
+    if heading == "right":
+        head_x += 30
+        snake_head = right
+    if heading == "left":
+        head_x -= 30
\ No newline at end of file
+        snake_head = left
+    if heading == "up":
+        head_y -= 30
+        snake_head = up
+    if heading == "down":
+        head_y += 30
+        snake_head = down
+
+    position.append((head_x,head_y))
+    if head_x == apple_x and head_y == apple_y:
+        apple_x = random.randint(0,21)*30
+        apple_y = random.randint(0,15)*30
+    else:
+        position.pop(0)
+
+
+    screen.blit(snake_head,(head_x,head_y))
+    for index in range(len(position)-1):
+        screen.blit(body,position[index])
+    
+    
+    FPSCLOCK.tick(10)
+    pygame.display.update()