【recast-navigation-js】使用three.js辅助绘制Agent

// 引入RecastNavigation和Three.js相关模块
const Recast = require('recastnavigation');
const THREE = require('three');

// 假设我们已经有了一个three.js的场景(scene)和相机(camera)

// 创建一个Agent，使用Three.js的Mesh作为表现
const agent = new Recast.DefaultAgent(Recast.SamplePolyFlags.SAMPLE_POLY_ALL);
const mesh = new THREE.Mesh(
    new THREE.BoxGeometry(2, 2, 2),
    new THREE.MeshBasicMaterial({ color: 0xff0000, wireframe: true })
);
scene.add(mesh);
agent.mesh = mesh;
agent.radius = 1;
agent.height = 2;
agent.maxSlope = 45 * Math.PI / 180;
agent.stepHeight = 0.4;

// 设置Agent的位置和目标位置
agent.setPos(0, 0, 0);
agent.setTarget(20, 0, 20);

// 通过detour的navmesh数据计算路径
const navMesh = /* 获取到的detour navmesh数据 */;
const path = new Recast.NavMeshQuery(navMesh).findPath(agent.pos, agent.target, agent);

// 使用计算出的路径和Three.js的Line进行绘制
const geometry = new THREE.Geometry();
path.forEach(point => {
    geometry.vertices.push(
        new THREE.Vector3(point[0], point[1], point[2])
    );
});
const line = new THREE.Line(geometry, new THREE.LineBasicMaterial({ color: 0x0000ff }));
scene.add(line);

// 注意：这只是一个简化的示例，实际使用时需要处理更多的细节，例如更新Agent的位置和绘制路径等。