[LIBGDX学习]LibGDX代码详解（二十八）Bullet

最新推荐文章于 2024-12-27 18:15:28 发布

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最新推荐文章于 2024-12-27 18:15:28 发布 · 335 阅读

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这篇博客详细介绍了如何在LibGDX中使用Bullet物理引擎进行3D碰撞检测和模拟。博主创建了3D场景，包括地面和多个球体，并配置了光线环境。他们还设置了重力并创建了碰撞世界，使用不同的Bullet组件如btDynamicsWorld、btCollisionDispatcher、btBroadphase等，以实现物体的动态行为和碰撞交互。

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.PerspectiveCamera;
import com.badlogic.gdx.graphics.VertexAttributes.Usage;
import com.badlogic.gdx.graphics.g3d.Environment;
import com.badlogic.gdx.graphics.g3d.Material;
import com.badlogic.gdx.graphics.g3d.Model;
import com.badlogic.gdx.graphics.g3d.ModelBatch;
import com.badlogic.gdx.graphics.g3d.ModelInstance;
import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute;
import com.badlogic.gdx.graphics.g3d.attributes.FloatAttribute;
import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight;
import com.badlogic.gdx.graphics.g3d.utils.ModelBuilder;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.physics.bullet.collision.btBoxShape;
import com.badlogic.gdx.physics.bullet.collision.btBroadphaseInterface;
import com.badlogic.gdx.physics.bullet.collision.btCollisionConfiguration;
import com.badlogic.gdx.physics.bullet.collision.btCollisionDispatcher;
import com.badlogic.gdx.physics.bullet.collision.btCollisionShape;
import com.badlogic.gdx.physics.bullet.collision.btDbvtBroadphase;
import com.badlogic.gdx.physics.bullet.collision.btDefaultCollisionConfiguration;
import com.badlogic.gdx.physics.bullet.collision.btSphereShape;
import com.badlogic.gdx.physics.bullet.dynamics.btConstraintSolver;
import com.badlogic.gdx.physics.bullet.dynamics.btDiscreteDynamicsWorld;
import com.badlogic.gdx.physics.bullet.dynamics.btDynamicsWorld;
import com.badlogic.gdx.physics.bullet.dynamics.btRigidBody;
import com.badlogic.gdx.physics.bullet.dynamics.btRigidBody.btRigidBodyConstructionInfo;
import com.badlogic.gdx.physics.bullet.dynamics.btSequentialImpulseConstraintSolver;
import com.badlogic.gdx.physics.bullet.linearmath.btDefaultMotionState;
import com.badlogic.gdx.utils.Array;

/**
 * 学Bullet好像也只能是看源代码，但是好像暂时也用不到啊。
 */
public class BasicBulletTest extends BulletTest {
    ModelBatch modelBatch;// 3D模型批渲染器？
    Environment lights;// 环境属性，光线等？
    ModelBuilder modelBuilder = new ModelBuilder();

    // btCollisionConfiguration allows to configure
    // Bullet collision detection stack allocator size,
    // default collision algorithms and persistent manifold pool size More...
    btCollisionConfiguration collisionConfiguration;

    /**
     * btCollisionDispatcher supports algorithms that
     * handle ConvexConvex and ConvexConcave collision pairs.
     * Time of Impact, Closest P