save project

lesson11-diy1.py

@@ -50,6 +50,13 @@ shape = random.choice(shape_list)
 index = random.randint(0, len(shape)-1)     # 随机形状索引
 current_shape = shape[index]
 color = random.choice(cube_colors)
+def check(center):
+    for cube in current_shape:
+        cube=(cube[0]+center[0],center[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():
@@ -57,14 +64,19 @@ while True:
             exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT:     # 向右
-                if center[1] < 15:
                 center[1] += 1
+                if check(center)==False:
+                    center[1]=center[1]-1
             elif event.key == locals.K_LEFT:    # 向左
-                if center[1] > 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
+                 if check(center)==False:
+                    center[0]=center[0]-1
 
     # 将背景图画上去
     screen.blit(background, (0, 0))