public override void execute(int deltaX, int deltaY, GameObject receiver)
{
if (receiver.TryGetComponent(out piece))
{
piece.onMoveInput(deltaX, deltaY);
formerX = curX;
formerY = curY;
curX += deltaX;
curY += deltaY;
}
}
public override void undo()
{
piece?.onMoveInput(formerX - curX, formerY - curY);
}