说在前面

• 操作系统：windows 11
• 浏览器：edge版本 124.0.2478.97
• recast-navigation-js版本：0.29.0
• golang版本：1.21.5

使用Tweakpane

• fps面板

  interface FPSGraph extends BladeApi<BladeController<View>> {
      begin(): void
      end(): void
  }
  
  export interface BindingItem {
      refresh(): void
  }
  
  // Debug
  export const gui = new Pane()
  gui.registerPlugin(EssentialsPlugin)
  
  export const fpsGraph = gui.addBlade({
      view: 'fpsgraph',
      label: 'fpsgraph',
  
  }) as FPSGraph
  

• 鼠标点击位置

  const controlFolder = gui.addFolder({
          title: "SceneControl",
      })
      this._sceneCtlBinding = controlFolder.addBinding(this._control, 'target', {
          format: (x) => x,
      }) as BindingItem
  

  
• 手动刷新值
  按理说绑定之后应该要自动刷新界面上的值，但是不知道为啥没有刷新

  private refreshBinding() {
      if (this._sceneCtlBinding) {
          this._sceneCtlBinding.refresh()
      }
  }
  

• 监听事件

   public onPointerDown(e: PointerEvent) {
      var pointer = new Vector2()
      pointer.set((e.clientX / window.innerWidth) * 2 - 1, - (e.clientY / window.innerHeight) * 2 + 1);
  
      this._raycaster.setFromCamera(pointer, this._camera);
      console.log(pointer)
      const intersects = this._raycaster.intersectObject(this._navMeshObj);
  
      if (intersects.length > 0) {
          switch (e.button) {
              case 0:
                  // "Left button clicked.";
                  break;
              case 1:
                  // "Middle button clicked.";
                  this._control.target = intersects[0].point
                  break;
              case 2:
                  // "Right button clicked.";
                  this._agent.teleport(intersects[0].point)
                  break;
              default:
                  // `Unknown button code: ${e.button}`;
          }
      }
  }
  

• 结果
  

添加CrowAgent

• agent.ts

  import { CrowdHelper } from "@recast-navigation/three";
  import { Crowd, CrowdAgent, NavMesh, NavMeshQuery } from "recast-navigation";
  import { MeshStandardMaterial, Vector3 } from "three";
  
  export class RecastAgent {
      private _meshQuery: NavMeshQuery
      private _crowd: Crowd
      private _agent: CrowdAgent
      private _agentTarget: null | Vector3
  
      public crowdHelper: CrowdHelper
  
      constructor(mesh: NavMesh) {
          this._meshQuery = new NavMeshQuery(mesh)
          this._crowd = new Crowd(mesh, {
              maxAgents: 1,
              maxAgentRadius: 0.5,
          })
  
          const { point: agentPosition } = this._meshQuery.findClosestPoint({ x: 0, y: 0, z: 0 })
  
          this._agent = this._crowd.addAgent(
              agentPosition,
              {
                  radius: 0.5,
                  height: 1,
                  maxAcceleration: 1,
                  maxSpeed: 1,
              }
          )
          this.crowdHelper = new CrowdHelper({
              crowd: this._crowd,
              agentMaterial: new MeshStandardMaterial({ color: 'red' }),
          })
          this._agentTarget = null
      }
  
      public update(delta: number) {
          this._crowd.update(delta)
          this.crowdHelper.update()
      }
  
      public teleport(pos: Vector3) {
          const { point: target, success: ok } = this._meshQuery.findClosestPoint(pos);
          this._agent.teleport(target);
          console.log(ok ,pos, target)
  
          this._agentTarget = null
      }
  
      public setAgentTarget(pos: Vector3) {
          const { point: target } = this._meshQuery.findClosestPoint(pos);
          this._agent.requestMoveTarget(target);
  
          this._agentTarget = new Vector3().copy(target as Vector3)
      }
  }
  

• 右键点击事件调用teleport函数

  // ...
  case 2:
  	// "Right button clicked.";
      this._agent.teleport(intersects[0].point)
      break;
  // ...
  

• 结果
  

其他

• 完整代码再等等
• findClosestPoint有时候会失败，有时候感觉位置不对，得再看看是啥问题