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my_Tetris.py

@@ -50,20 +50,29 @@ current_shape = [(0, -1), (0, 0), (0, 1), (-1, 0)]
 z=random.choice(shape_list)
 zx=z[random.randint(0,len(z)-1)]
 color=random.choice(cube_colors)
+
+def check(center):
+    for cube in zx:
+        cube=(cube[0]+center[0],cube[1]+center[1])
+        if cube[0]<1 or cube[1]<1 or cube[0]>grid_num_height or cube[1]>grid_num_width:
+            return False
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT:     # 向右
-                if center[1] < 15:
-                    center[1] += 1
+                center[1] += 1
+                if check(center)==False:
+                    center[1]-=1
             elif event.key == locals.K_LEFT:    # 向左
-                if center[1] > 1:
-                    center[1] -= 1
+                center[1] -= 1
+                if check(center)==False:
+                    center[1]+=1
             elif event.key == locals.K_DOWN:    # 向下
-                if center[0] < 25:
-                    center[0] += 1
+                center[0] += 1
+                if check(center)==False:
+                    center[0]-=1
 
     # 将背景图画上去
     screen.blit(background, (0, 0))