save project

my_game.py

@@ -20,10 +20,22 @@ while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             exit()
             exit()
+        if event.type ==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT:   
+                if center[1]<15:
+                    center[1]+=1
+            elif event.key==locals.K_LEFT:
+                if center[1]>1:
+                    center[1]-=1
+            elif event.key==locals.K_DOWN:
+                if center[1]<25:
+                    center[1]+=1
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background,(0,0))
     screen.blit(background,(0,0))
     pygame.draw.rect(screen,(255,0,0),(100,20,20,20),0)
     pygame.draw.rect(screen,(255,0,0),(100,20,20,20),0)
+                    (center[1] * 20-20,center[0] * 20-20,20,20),1)
     pygame.draw.rect(screen,(0,0,0),(100,20,20,20),1)
     pygame.draw.rect(screen,(0,0,0),(100,20,20,20),1)
+                    (center[1] * 20-20,center[0] * 20-20,20,20),1)
     # 得分
     # 得分
     score1 = font.render(str(score),True,(255,255,255))
     score1 = font.render(str(score),True,(255,255,255))
     screen.blit(score1,(350,70))
     screen.blit(score1,(350,70))