save project

my_Tetris.py

@@ -49,21 +49,29 @@ shape = random.choice(shape_list)
 index = random.randint(0,len(shape)-1)
 current_shape = shape[index]
 color = random.choice(cube_colors)
-
+def check(center):
+    for cude in current_shape:
+        cude = (cube[0] + center[0],cube[1] + center[1])
+        if cude[0] < 1 or cude[1] < 1 or cude[0] > grid_num_height \
+                or cude[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
+            if event.key == locals.K_RIGHT:
+                center[1] = center[1] + 1     # 向右
+                if check(center) == False:
+                    center[1] = center[1] - 1
             elif event.key == locals.K_LEFT:    # 向左
-                if center[1] > 1:
-                    center[1] -= 1
+                    center[1] = center[1] - 1
+                    if check(center) == False:
+                        center[1] = center[1] + 1
             elif event.key == locals.K_DOWN:    # 向下
-                if center[0] < 25:
-                    center[0] += 1
+                    center[0] = center[0] + 1
+                    if check(center) == False:
+                        center[0] = center[0] - 1
 
     # 将背景图画上去
     screen.blit(background, (0, 0))