import IAttributeDeclaration from "grimoirejs/ref/Node/IAttributeDeclaration";
import Component from "grimoirejs/ref/Node/Component";
import MeshRenderer from "grimoirejs-fundamental/ref/Components/MeshRendererComponent";
import MorphGeometry from "grimoirejs-fundamental/ref/Geometry/MorphGeometry";

export default class GLTFVertexMorpher extends Component{
    public static attributes: { [key: string]: IAttributeDeclaration } = {
        weights:{
            default:[],
            converter:"NumberArray"
        }
    };

    private _meshComponent:MeshRenderer;

    private _morphTarget:MorphGeometry;
    public $mount():void{
        this._meshComponent = this.node.getComponent(MeshRenderer);
        this._meshComponent.geometry.then(g=>this._morphTarget = g as MorphGeometry);
        this.getAttributeRaw("weights").watch(v=>{
            if(this._morphTarget){
                this._morphTarget.setWeight(v);
            }
        })
    }
}