save project

my_Tetris.py

@@ -21,18 +21,18 @@ while True:
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
-            if event.key==locals.K_w:
+            if event.key==locals.K_w and center[0] > 1:
                 center[0] -= 1
-            if event.key==locals.K_s:
+            if event.key==locals.K_s and center[0] < 25:
                 center[0] += 1
-            if event.key==locals.K_a:
+            if event.key==locals.K_a and center[1] > 1:
                 center[1] -= 1
-            if event.key==locals.K_d:
+            if event.key==locals.K_d and center[1] < 15:
                 center[1] += 1
     # 将背景图画上去
     screen.blit(background,(0,0))
     #画出矩形
-    pygame.draw.rect(screen,(255,0,0),(center[1]*20,center[0]*20,20,20),0)
+    pygame.draw.rect(screen,(255,0,0),(center[1]*20-20,center[0]*20-20,20,20),0)
     # 得分
     myscore=font.render(str(score),True,(0,0,0))
     screen.blit(myscore,(350,70))