在box2d主体顶部绘制字体 [英] Draw font on top of box2d body

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本文介绍了在box2d主体顶部绘制字体的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

如何在我的静态box2d主体顶部绘制文本(字体)?

How can I draw text (font) on top of my static box2d body?

背景:我无法在物体顶部正确绘制精灵. 为此,我将box2dSpriteBatch投影到box2dCamera上,就像box2dSpriteBatch.setProjectionMatrix(box2dCamera.combined);一样,然后使用主体的getPosition简单地将精灵渲染到正确的位置.

Background: Im able to draw sprites on top of bodies correctly. I do this by having a box2dSpriteBatch which is projected on box2dCamera like so box2dSpriteBatch.setProjectionMatrix(box2dCamera.combined); And then simply rendering the sprite in the correct spot using getPosition of the body.

但是,如果我尝试以相同的方式处理字体,不幸的是,它的缩放比例非常大,如果我尝试将字体缩小,则不会出现.因此,我假设我需要在窗口坐标而不是box2d中绘制文本.

But if i try the same way for fonts, unfortunately it scales incredibly large, and if i try to scale the font down it doesn't appear. So im assuming I need to draw the text in window coordinates instead of box2d.

我的尝试:

    show()中的
  • : windowCamera = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());

  • in show(): windowCamera = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());

windowSpriteBatch.setProjectionMatrix(windowCamera.combined);

也在渲染"中渲染字体

whiteFont.setScale(0.7f, 0.7f); sb.begin(); whiteFont.draw(sb, "2", body.getPosition().x, (questionLineBody.getPosition().y)*PPM); sb.end();

whiteFont.setScale(0.7f, 0.7f); sb.begin(); whiteFont.draw(sb, "2", body.getPosition().x, (questionLineBody.getPosition().y)*PPM); sb.end();

推荐答案

解决方案基本上是通过PPM来*我的x位置.

The solution was to Basically * my x position by PPM.

即.

将这些行添加到渲染"方法中:

Add these lines to the Render method:

windowCamera.position.y = box2dCamera.position.y * PPM;
windowCamera.update();
windowSpriteBatch.setProjectionMatrix(windowCamera.combined);

然后像这样渲染字体:

whiteFont.draw (sb,"2", body.getPosition().x * PPM, body.getPosition().y * PPM);

这篇关于在box2d主体顶部绘制字体的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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