save project

my_game.py

@@ -21,6 +21,7 @@ hero = [pygame.image.load('hero1.png'),
 index = 0                                   #索引位置
 jumpstate = "running"
 y=400
+t=30
 
 while True:
     for event in pygame.event.get():
@@ -28,25 +29,28 @@ while True:
             exit()                          # 接收到退出事件后退出程序
 
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_SPACE:
-                jumpstate = "up"
+            if jumpstate == "running" :      #
+                if event.key == locals.K_SPACE:
+                    jumpstate = "up"
 
     if jumpstate == "up":                   #起跳  
-        if y > 150:
-            y -= 5
+        if t > 0:
+            y -= t
+            t -= 2
         else:    
             jumpstate = "down"
-
+        
     if jumpstate == "down":                 #降落
-        if y < 400:
-            y += 5
+        if t <= 30:
+            y += t
+            t += 2
         else:
             jumpstate = "running"
-
-    wokong = hero[index]
-    index += 1
-    if index == 5:
-        index = 0
+            t=30
+    if jumpstate == "running":              #跑步状态下不换造型
+        index += 1
+        if index == 5:
+            index = 0
    
     # 将背景图画上去
     screen.blit(background, (0, 0))