如何保存在pygame中代替矩形的所有像素? [英] How to save all pixels that were in the place of a rect in pygame?

问题描述

有没有办法在绘制之前保存在矩形位置的所有像素?因此，当我在不同的地方再次绘制该矩形时，我可以用保存的像素替换旧的矩形，而不是手动填充该区域?

Is there a way to save all the pixels that were in the place of a rect before drawing it? So that when I draw that rect again in a different place I can replace the old one with the saved pixels instead of filling that area with colors mamually?

推荐答案

您可以使用 subsurface:

You can define a subsurface that is directly linked to the source surface with the method subsurface:

次表面(矩形)->表面

返回一个与其新父级共享像素的新 Surface.新 Surface 被视为原始 Surface 的子代.对任一表面像素的修改会相互影响.

Returns a new Surface that shares its pixels with its new parent. The new Surface is considered a child of the original. Modifications to either Surface pixels will effect each other.

创建次表面的副本到永久存储:

Create a copy of the subsurface to store it permanently:

rect_area = pygame.Rect(x, y, width, height)
area_surf = screen.subsurface(rect_area).copy()

稍后使用 Surface 替换矩形区域:

Use the Surface later to replace the rectangular area:

screen.blit(area_surf, region)

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