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Pygame的打折顺序和透明度

[英]Pygame Blitting Order and Transparency

原文 2015-10-06 05:43:54 6 1 python/ pygame/ pygame-surface

Having an issue with blitting order (I think) and transparent bounding boxes showing up during collisions. 碰撞顺序时出现笔迹排序问题（我认为），透明边框出现问题。

Link to the code and the issue is here: https://github.com/CastleSeven/flappy-balloon/issues/1 链接到代码，问题出在这里： https : //github.com/CastleSeven/flappy-balloon/issues/1

Basically, whenever a collision is about to occur, the player model is occluded by a transparent bounding box around the obstacle. 基本上，每当即将发生碰撞时，玩家模型都会被障碍周围的透明边界框所遮挡。 I'm not sure what I need to change so that JUST the non-transparent pixels are reblitted for the background on every loop. 我不确定我需要更改什么，以便仅在每个循环中为背景重新涂上非透明像素。

If I change the code so that the balloon blit comes AFTER the obstacle blit, I get the inverse effect, the balloon's bounding box occludes the obstacle. 如果我更改代码，以使气球blit在障碍物blit之后出现，我得到相反的效果，气球的边界框会遮挡障碍物。

1 个解决方案

Try using a colorkey, make the background of the textures something ugly like (255, 0, 255) and set the colorkey of the textures the same color. 尝试使用一个colorkey，使纹理的背景像（255，0，255）一样丑陋，然后将纹理的colorkey设置为相同的颜色。 https://www.pygame.org/docs/ref/surface.html#pygame.Surface.set_colorkey https://www.pygame.org/docs/ref/surface.html#pygame.Surface.set_colorkey