Android 中的即时位图编辑
我正在为游戏创建一个场景。
有一个背景，它是位图和播放器对象。我希望玩家对象在棋盘上移动时能够以透明颜色“吃掉”背景。基本上，如果一个对象位于某个点，则该对象周围的圆圈将从位图中进行 Alpha 处理。位图的编辑需要保留。
实现这一目标的最佳方法是什么？我正在考虑使用 Bitmap.setPixel 修改位图的像素，但这可能会非常昂贵。
I'm creating a scene for a game.
There's a background which is a bitmap and player objects. I want to have the player objects to be able to "eat" away at the background with a transparent color as they move around the board. Basically if an object is at a certain point a circle around that object is alpha'ed out of the bitmap. The edits of the bitmap need to persist.
What's the best way to accomplish this? I was thinking of modifying the pixels for the bitmap using Bitmap.setPixel but that would probably be very expensive.
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我想通了。
我基本上需要使用应用于位图的 Canvas 绘制函数。
IE
Canvas.drawBitmap()
I figured it out.
I need to basically use Canvas's draw functions which are applied to a bitmap.
IE
Canvas.drawBitmap()