package;

class Event<T>
{
    private var _list:Array<T>;

    public function new()
    {
        _list = [];
    }

    public function addListener(f:T) {
        if (_list.indexOf(f) > -1) return;
        _list.push(f);
    }

    public function removeListener(f:T) {
        _list.remove(f);
    }

    public function dispatch(f:Array<T>->Void) {
        if (f != null) f(_list);
    }
}