import { ArcRotateCamera, Vector3 } from "@babylonjs/core";
import { Type } from "class-transformer";

/**
 * 自由旋转相机的数据
 */
export class ArcRotateCameraData {

    @Type(() => Vector3)
    target: Vector3;
    radius: number;
    alpha: number;
    beta: number;


    constructor() {
        this.target = new Vector3();
    }

    /**
     * 将数据设置到相机上
     * @param camera 
     */
    setDataToCamera(camera: ArcRotateCamera) {
        camera._scene.stopAnimation(camera);
        camera.target = this.target.clone();
        camera.radius = this.radius;
        camera.alpha = this.alpha;
        camera.beta = this.beta;
    }

    /**
     * 将摄像机的数据记录下来
     * @param camera 
     */
    getDataFromCamera(camera: ArcRotateCamera) {
        this.target = camera.target.clone();
        this.radius = camera.radius;
        this.alpha = camera.alpha;
        this.beta = camera.beta;
    }
}