如何在python中，在特定图像区域内对图像进行blit？ [英] How to blit an image, in python, inside the area of a specific image?

问题描述

我正在制作游戏，我需要在特定图像区域内对象进行blit。我不想让我的表面对这些图像进行blit。可能吗？ （我正在使用pygame）

I'm making a game and I need to blit my objects inside the area of a specific image. I don't want to need my surface to blit these images. Is it possible? (I'm using pygame)

推荐答案

如果你能解释你想做什么，将来会更好有点好，因为它会给你更多的答案：）

It would be better in the future if you would explain what you are trying to do a bit better since it would give you more answers :)

据我所知，你想把图像blit到另一张图像上：

From what I have understood you want to blit an image onto another image:

要使此代码生效，请设置以下前提：

For this code to work the following premises are set:

• 包含程序的文件夹还包含arbritary图像名为testimage.png和testimage0.jpg


• 已安装PyGame

我写了以下内容如果你遵循上述前提，你可以运行一段代码：

I have written the following piece of code which you can run if you follow the above premises:

import pygame

screen = pygame.display.set_mode([800, 800], 0, 32)
#initiates screen

image1 = pygame.image.load('testimage0.jpg')
#testimage0.jpg is loaded into the variable image1

image2 = pygame.image.load('testimage.png').convert_alpha()
#testimage.png is loaded into the variable image2

while True:
    screen.fill([0, 0, 0])
    #screen is filled with a black background

    screen.blit(image1, [200, 200]) 
    #here image1 is blitted onto screen at the coordinates (200,200)

    image1.blit(image2, [0, 0])
    #here image2 is blitted onto image1 at the coordinates (0,0) which starts at the upper left of image1

    pygame.display.update()
    #updates display, which you can just ignore

图像只是带有精灵或图片的表面。曲面的坐标系始终从左上角（0,0）开始，这就是为什么（0,0）image1与屏幕的（0,0）不同。

Images are just surfaces with a sprite or picture on. The coordinate system of a surface always starts at the upper left (0,0), which is why (0,0) of image1 isn't the same as the (0,0) of screen.

我拍了一张该程序的照片并编辑了一些箭头来解释我的观点：$ b​​ $ b

I took a picture of the program and edited some arrows in to explain my point:

希望这是一个帮助，如果你认为可以接受，请记得接受答案：）

Hope this was a help and remember to accept as the answer if you find it acceptable :)

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