using System;
using System.Collections.Generic;
using Vector2I = Vector.Vector2I;


public interface IPiece {
    public interface IPieceOn {
        void OnPos(object self, Vector2I oldPos) {}
        void OnMove(object self, Vector2I oldPos) {}
        void OnSelected(object self, bool oldIsSelected) {}
        void OnName(object self, string oldName) {}
    }

    IPieceOn? On { get; protected set; }
    Vector2I Pos { get; set; }
    string Name { get; set; }
    bool IsSelected { get; set; }
    Dictionary<string, object> Data { get; set; }

    bool CanMove(Vector2I to);
    bool Move(Vector2I pos);
}