save project

my_game.py

@@ -17,6 +17,7 @@ hero = [pygame.image.load('hero1.png'),
         pygame.image.load('hero4.png'),
         pygame.image.load('hero5.png')]
 index = 0 
+G=5
 y=400
 IM='running'
 
@@ -35,13 +36,18 @@ while True:
                     IM='up'
     if IM=='up':
         if y>150:
-            y-=5
+            y-=2*G
+            G-=0.05
         else:
             IM='down'
     if IM=='down':
         if y<=400:
-            y+=5
+            y+=2*G
+            G+=0.2
         else:
+            G=5
+            if y>400:
+                y=400
             if IM!='up':
                 IM='running'
     herorun=hero[index]