function EventHandler<U>(type: string, selector: (self: U) => Function) {


    let memberDecorator = ecs.createMemberDecorator((entity, component) => {
        let listener = selector(entity);
        return new EventHandlerComponent(component, type, listener, entity)
    });

    return memberDecorator;
}



class EventHandlerComponent implements ecs.Component {

    constructor(public component: eui.Component, public type: string, public listener: Function, public thisObject: any) {

    }

    activate() {
        this.component.addEventListener(this.type, this.listener, this.thisObject);
        // ui.addEventListener(this.type,)
    }
}