save project

lesson7-diy3.py

 import pygame
-import random
 from pygame import locals
-
+import random
 
 pygame.init()  # 初始化
+
+class Block(pygame.sprite.Sprite):
+    def __init__(self,image1,image2,image3):
+        super().__init__()
+        # 加载障碍物的图片
+        self.image = random.choice([image1, image2, image3])
+        # 根据障碍物位图的宽高设置矩形
+        self.rect = self.image.get_rect()
+        # 障碍物绘制坐标
+        self.rect.x = 1000
+        self.rect.y = 500 - self.rect.height
+
 # 创建一个窗口
 screen = pygame.display.set_mode((1000, 600))
 FPS = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
@@ -19,14 +30,17 @@ hero = [pygame.image.load('hero1.png'),
         pygame.image.load('hero3.png'),
         pygame.image.load('hero4.png'),
         pygame.image.load('hero5.png')]
-index = 0 
-jumpState = "runing"
+index = 0   
 y = 400
+jumpState = "runing"
 t = 30
-ssd=random.choice([bush,stone,cacti])
-xx=ssd.get_rect()
-xx.x=1000
-xx.y=500-xx.height
+
+bg_x = 0
+road_x = 0
+
+# 创建障碍物
+obstacle = Block(bush,cacti,stone)
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -36,37 +50,44 @@ while True:
             if jumpState == "runing":
                 if event.key == locals.K_SPACE:
                     jumpState = "up"
-    if jumpState == "up":    # 起跳
+
+    if jumpState == "up":    # 起跳状态
         if t > 0:
             y -= t
             t -= 2
         else:
             jumpState = "down"  
-    if jumpState == "down":    # 降落
+    if jumpState == "down":    # 降落状态
         if t <= 30:
             y += t
             t += 2
         else:
             jumpState = "runing"
-            t = 30
-
-    wukong = hero[index]  
-    if jumpState == "runing":
+            t =30
+    
+    # 悟空造型
+    wukong = hero[index]
+    if jumpState == "runing":       # 跑步状态下
         index += 1
-        if index == 5:
+        if index >= 5:
             index = 0
-
     # 将背景图画上去
-    screen.blit(background, (0, 0))
-    screen.blit(road, (0, 500))
-    screen.blit(wukong, (150, y))
-    if xx.x<0-xx.width:
-        ssd=random.choice([bush,stone,cacti])
-        xx=ssd.get_rect()
-        xx.x=1000
-        xx.y=500-xx.height
-    xx.x-=8
-    screen.blit(ssd,(xx.x,xx.y))
+    bg_x -= 1
+    if bg_x<=-1000:
+        bg_x = 0
+    screen.blit(background, (bg_x, 0))
+    road_x -= 8
+    if road_x<=-1000:
+        road_x = 0
+    screen.blit(road, (road_x, 500))
+    screen.blit(wukong, (150, y))     # 悟空
+
+# ++++++++++++++++++++++
+    if obstacle.rect.x <= 0-obstacle.rect.width:
+        obstacle = Block(bush,cacti,stone)
+    obstacle.rect.x -= 8
+# ++++++++++++++++++++++
+    screen.blit(obstacle.image, (obstacle.rect.x, obstacle.rect.y)) 
     # 刷新画面
     pygame.display.update()
-    FPS.tick(30)
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+    FPS.tick(60) 
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