[LayaAir 2.0]2.0版本可用的CameraMoveScript.ts

引擎源码：点这里仅仅给找不到这个文件，或者使用这个文件无效果的小伙伴，还原一个2.0，跟示例里效果一样的文件：
 
/**
* ...
* @author
*/
export class CameraMoveScript extends Laya.Script { 
    /** @private */
    protected _tempVector3: Laya.Vector3 = new Laya.Vector3();
    protected lastMouseX: number;
    protected lastMouseY: number;
    protected yawPitchRoll: Laya.Vector3 = new Laya.Vector3();
    protected resultRotation: Laya.Quaternion = new Laya.Quaternion();
    protected tempRotationZ: Laya.Quaternion = new Laya.Quaternion();
    protected tempRotationX: Laya.Quaternion = new Laya.Quaternion();
    protected tempRotationY: Laya.Quaternion = new Laya.Quaternion();
    protected isMouseDown: boolean;
    protected rotaionSpeed: number = 0.00006;
    protected camera: Laya.BaseCamera;
    protected scene: Laya.Scene3D; 
    constructor() {
        super(); 
    } 
    /**
     * @private
     */
    protected _updateRotation(): void {
        if (Math.abs(this.yawPitchRoll.y) < 1.50) {
            Laya.Quaternion.createFromYawPitchRoll(this.yawPitchRoll.x, this.yawPitchRoll.y, this.yawPitchRoll.z, this.tempRotationZ);
            this.tempRotationZ.cloneTo(this.camera.transform.localRotation);
            this.camera.transform.localRotation = this.camera.transform.localRotation;
        }
    } 
        /**
         * @inheritDoc
         */
        /*override*/ onAwake(): void {
        this.camera = (<Laya.Camera>this.owner);
    } 
        /**
         * @inheritDoc
         */
        /*override*/ onUpdate(): void {
        var elapsedTime: number = Laya.timer.delta;
        if (!isNaN(this.lastMouseX) && !isNaN(this.lastMouseY) && this.isMouseDown) {
            var scene: Laya.Scene3D = this.owner.scene;
            var offsetX: number = Laya.stage.mouseX - this.lastMouseX;
            var offsetY: number = Laya.stage.mouseY - this.lastMouseY;
            var yprElem: Laya.Vector3 = this.yawPitchRoll;
            yprElem.x -= offsetX * this.rotaionSpeed * elapsedTime;
            yprElem.y -= offsetY * this.rotaionSpeed * elapsedTime;
            this._updateRotation();
        }
        Laya.KeyBoardManager.hasKeyDown(87) && this.moveForward(-0.01 * elapsedTime);//W
        Laya.KeyBoardManager.hasKeyDown(83) && this.moveForward(0.01 * elapsedTime);//S
        Laya.KeyBoardManager.hasKeyDown(65) && this.moveRight(-0.01 * elapsedTime);//A
        Laya.KeyBoardManager.hasKeyDown(68) && this.moveRight(0.01 * elapsedTime);//D
        Laya.KeyBoardManager.hasKeyDown(81) && this.moveVertical(0.01 * elapsedTime);//Q
        Laya.KeyBoardManager.hasKeyDown(69) && this.moveVertical(-0.01 * elapsedTime);//E   
        this.lastMouseX = Laya.stage.mouseX;
        this.lastMouseY = Laya.stage.mouseY;
    } 
    onStageMouseDown(): void {
        this.camera.transform.localRotation.getYawPitchRoll(this.yawPitchRoll); 
        this.lastMouseX = Laya.stage.mouseX;
        this.lastMouseY = Laya.stage.mouseY;
        this.isMouseDown = true;
    } 
    onStageMouseUp(): void {
        this.isMouseDown = false;
    } 
    onStageMouseOut(): void {
        this.isMouseDown = false;
    } 
    /**
     * 向前移动。
     * @param distance 移动距离。
     */
    moveForward(distance: number): void {
        this._tempVector3.x = this._tempVector3.y = 0;
        this._tempVector3.z = distance;
        this.camera.transform.translate(this._tempVector3);
    } 
    /**
     * 向右移动。
     * @param distance 移动距离。
     */
    moveRight(distance: number): void {
        this._tempVector3.y = this._tempVector3.z = 0;
        this._tempVector3.x = distance;
        this.camera.transform.translate(this._tempVector3);
    } 
    /**
     * 向上移动。
     * @param distance 移动距离。
     */
    moveVertical(distance: number): void {
        this._tempVector3.x = this._tempVector3.z = 0;
        this._tempVector3.y = distance;
        this.camera.transform.translate(this._tempVector3, false);
    }
}