我想让角色使用rigidBody.applyForce 的方式去移动，但是角色在地上一动也不动的


export default class GameUI {
  //宣告場景
  private scene: Laya.Scene3D;
  private camera: Laya.Camera;
  private directionlight: Laya.DirectionLight;
  private character: Laya.Sprite3D;
  private monster_character: Laya.Sprite3D;
  private translateW: Laya.Vector3 = new Laya.Vector3(0, 0, 0.2);
  private translateS: Laya.Vector3 = new Laya.Vector3(0, 0, -0.2);
  private translateA: Laya.Vector3 = new Laya.Vector3(0.2, 0, 0);
  private translateD: Laya.Vector3 = new Laya.Vector3(-0.2, 0, 0);
  private translateSpace: Laya.Vector3 = new Laya.Vector3(0, 1, 0);
  private monster_init_x: number = 0;
  private monster_init_y: number = 0;
  private monster_init_z: number = 0;
  private trans: Laya.Vector3;
  private rigidBody: Laya.Rigidbody3D;

  private tmp_x: number = 0;
  private tmp_y: number = 0;
  private tmp_z: number = 0;
  private yaw: number = 0;
  private pitch: number = 0;
  private animator: Laya.Animator;

  private point: Laya.Vector2 = new Laya.Vector2();
  private _ray: Laya.Ray;
  private _outHitResult: Laya.HitResult;
  private text: Laya.Text = new Laya.Text();

  constructor() {
    //初始化引擎
    Laya3D.init(0, 0);
    Laya.stage.scaleMode = Laya.Stage.SCALE_FULL;
    Laya.stage.screenMode = Laya.Stage.SCREEN_NONE;
    Laya.Stat.show();
    //加载场景人物腳色
    Laya.Scene3D.load(
      "res/build5/SampleScene.ls",
      Laya.Handler.create(this, this.onComplete)
    );
    //射线初始化（必须初始化）
    this._ray = new Laya.Ray(
      new Laya.Vector3(0, 0, 0),
      new Laya.Vector3(0, 0, 0)
    );

    //初始化变量
    this.point = new Laya.Vector2();
    this._outHitResult = new Laya.HitResult();
  }

  /**
   * 加载完成
   */
  private onComplete(scene: Laya.Scene3D): void {
    this.scene = new Laya.Scene3D();
    //将场景加到舞台上
    this.scene = scene;
    Laya.stage.addChild(scene);

    //添加方向光
    var directionlight: Laya.DirectionLight = scene.getChildByName(
      "Directional Light"
    ) as Laya.DirectionLight;
    this.directionlight = directionlight;

    //加入子層人物腳色到舞台
    var littleGirl: Laya.Sprite3D = scene.getChildByName(
      "Girl"
    ) as Laya.Sprite3D;
    scene.addChild(littleGirl);

    this.character = littleGirl;
    //獲取動畫組建
    this.animator = littleGirl.getComponent(Laya.Animator) as Laya.Animator;
    this.playIdle();
    this.rigidBody = this.character.getComponent(Laya.Rigidbody3D);

    Laya.timer.frameLoop(1, this, this.onKeyDown);

    //獲取照相機
    var camera: Laya.Camera = littleGirl.getChildByName(
      "Main Camera"
    ) as Laya.Camera;

    this.camera = camera;

    //新增怪物
    this.RandomMonster_x();
    this.RandomMonster_z();
    var monster_position_x = this.monster_init_x;
    var monster_position_z = this.monster_init_z;
    var Monster: Laya.Sprite3D = scene.getChildByName(
      "Monster1"
    ) as Laya.Sprite3D;
    scene.addChild(Monster);

    Monster.transform.translate(
      new Laya.Vector3(monster_position_x, 0, monster_position_z)
    );
    this.monster_character = Monster;
    // this.master_turn();
    //添加自定义模型
    var box: Laya.MeshSprite3D = this.scene.addChild(
      new Laya.MeshSprite3D(Laya.PrimitiveMesh.createBox(2, 2, 2))
    ) as Laya.MeshSprite3D;
    box.transform.translate(new Laya.Vector3(5, 5, 5));
    box.transform.rotate(new Laya.Vector3(0, 45, 0), false, false);
    var material: Laya.BlinnPhongMaterial = new Laya.BlinnPhongMaterial();
    Laya.Texture2D.load(
      "res/layabox.png",
      Laya.Handler.create(null, function (tex: Laya.Texture2D) {
        material.albedoTexture = tex;
      })
    );
    box.meshRenderer.material = material;

    //设置文本显示框位置
    this.text.x = Laya.stage.width / 2 - 50;
    //显示文本显示框
    this.text = new Laya.Text();
    this.text.overflow = Laya.Text.HIDDEN;
    this.text.color = "#FFFFFF";
    this.text.font = "Impact";
    this.text.fontSize = 24;
    this.text.x = (Laya.stage.width / 5) * 2;
    Laya.stage.addChild(this.text);
    Laya.stage.on(Laya.Event.MOUSE_DOWN, this, this.onMouseDown);

    let building: Laya.Sprite3D = scene.getChildByName(
      "Buliding"
    ) as Laya.Sprite3D;

    let moveArea: Laya.MeshSprite3D = building.getChildByName(
      "fence15"
    ) as Laya.MeshSprite3D;

    console.log("-----");
    console.log(building);
    console.log("-----");
    console.log(moveArea);
  }

  private playRun(): void {
    this.animator.play("Running");
    this.animator.speed = 1.0;
  }
  private playIdle(): void {
    this.animator.play("Idle");
    this.animator.speed = 1.0;
  }
  private playWalk(): void {
    this.animator.play("Walk");
    this.animator.speed = 1.0;
  }

  private onKeyDown(): void {
    //開始暂停動畫
    this.MonsterMoveToMainCharacter();
    // console.log(this.monster_character.transform.position);
    //this.animator.speed = 0.0;
    let keyW = Laya.KeyBoardManager.hasKeyDown(87);
    let keyS = Laya.KeyBoardManager.hasKeyDown(83);
    let keyA = Laya.KeyBoardManager.hasKeyDown(65);
    let keyD = Laya.KeyBoardManager.hasKeyDown(68);
    let keyShift = Laya.KeyBoardManager.hasKeyDown(16);
    let haskeyW: boolean = false;
    let haskeyS: boolean = false;
    let haskeyA: boolean = false;
    let haskeyD: boolean = false;
    let haskeyShift: boolean = false;

    if (keyW) {
      if (keyShift) {
        this.playRun();
        this.rigidBody.applyForce(new Laya.Vector3(0, 0, 0.2));
        // this.character.transform.translate(this.translateW);
        haskeyShift = true;
      } else {
        this.playWalk();
        this.rigidBody.applyForce(new Laya.Vector3(0, 0, 0.2));
        // this.character.transform.translate(this.translateW);
        haskeyW = true;
      }
    }

    if (keyS) {
      if (keyShift) {
        this.playRun();
        this.rigidBody.applyForce(new Laya.Vector3(0, 0, -0.2));
        // this.character.transform.translate(this.translateS);
        haskeyShift = true;
      } else {
        this.playWalk();
        this.rigidBody.applyForce(new Laya.Vector3(0, 0, -0.2));
        // this.character.transform.translate(this.translateS);
        haskeyS = true;
      }
    }
    if (keyA) {
      if (keyShift) {
        this.playRun();
        this.rigidBody.applyForce(this.translateA);
        // this.character.transform.translate(this.translateA);
        haskeyShift = true;
      } else {
        this.playWalk();
        this.rigidBody.applyForce(this.translateA);
        // this.character.transform.translate(this.translateA);
        haskeyA = true;
      }
    }
    if (keyD) {
      if (keyShift) {
        this.playRun();
        this.rigidBody.applyForce(this.translateD);
        // this.character.transform.translate(this.translateD);
        haskeyShift = true;
      } else {
        this.playWalk();
        this.rigidBody.applyForce(this.translateD);
        // this.character.transform.translate(this.translateD);
        haskeyD = true;
      }
    }
    if (
      haskeyW === false &&
      haskeyA === false &&
      haskeyS === false &&
      haskeyD === false &&
      haskeyShift === false
    ) {
      this.playIdle();
    }

    if (Laya.KeyBoardManager.hasKeyDown(32) === true) {
      this.playRun();
      this.character.transform.translate(this.translateSpace);
    }

    if (Laya.KeyBoardManager.hasKeyDown(69) === true) {
      this.character.transform.rotate(new Laya.Vector3(0, -5, 0), false, false);
    }
    if (Laya.KeyBoardManager.hasKeyDown(81) === true) {
      this.character.transform.rotate(new Laya.Vector3(0, 5, 0), false, false);
    }
  }

  private onMouseMove(): void {
    var mouseY = Laya.MouseManager.instance.mouseY;
    var speedY: number = 2;
    this.pitch -= speedY * mouseY;
    this.character.transform.rotate(
      new Laya.Vector3(0, 0.001 * this.pitch, 0),
      false,
      false
    );
  }

  private onMouseDown() {
    this.point.x = Laya.MouseManager.instance.mouseX;
    this.point.y = Laya.MouseManager.instance.mouseY;
    //產生射线
    this.camera.viewportPointToRay(this.point, this._ray);
    //拿到射线碰撞的物体
    this.scene.physicsSimulation.rayCast(this._ray, this._outHitResult);
    //如果碰撞到物体
    if (this._outHitResult.succeeded) {
      //删除碰撞到的物体
      this.text.text = "点击到了" + this._outHitResult.collider.owner.name;
    }
  }
}