[LIBGDX学习]LibGDX代码详解（十一）Box2D bridge

最新推荐文章于 2023-07-28 17:49:31 发布

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最新推荐文章于 2023-07-28 17:49:31 发布 · 210 阅读

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这篇博客详细介绍了如何使用LibGDX库在Java中构建一个Box2D物理世界的桥梁模型。通过创建静态和动态Body，设置形状（如EdgeShape、PolygonShape和CircleShape），并利用RevoluteJointDef连接各个部分，展示了Box2D的关节和刚体动态特性。此外，还调整了密度、摩擦力和恢复系数以实现更真实的物理效果。

package com.mygdx.game.box2d;

import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Body;
import com.badlogic.gdx.physics.box2d.BodyDef;
import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
import com.badlogic.gdx.physics.box2d.CircleShape;
import com.badlogic.gdx.physics.box2d.EdgeShape;
import com.badlogic.gdx.physics.box2d.FixtureDef;
import com.badlogic.gdx.physics.box2d.PolygonShape;
import com.badlogic.gdx.physics.box2d.World;
import com.badlogic.gdx.physics.box2d.joints.RevoluteJointDef;

public class Bridge extends Box2DTest {
	int e_count = 30;

	@Override
	protected void createWorld (World world) {
		Body ground;
		{
			BodyDef bd = new BodyDef();
			ground = world.createBody(bd);

			EdgeShape shape = new EdgeShape();
			shape.set(new Vector2(-40, 0), new Vector2(40.0f, 0));

			ground.createFixture(shape, 0);
			shape.dispose();
		}

		{
			PolygonShape shape = new PolygonShape();
			shape.setAsBox(0.5f, 0.125f);