private void Start()
{
MoveUnitCommand moveUnitCommand = new MoveUnitCommand(
transform,
transform.position.x,
transform.position.y);
MoveHistory.Instance.Add(moveUnitCommand);
}
private void Update()
{
MoveUnitCommand command = HandleInput();
if (command != null)
{
command.Execute();
}
}
private MoveUnitCommand HandleInput()
{
if (Input.GetKeyDown(KeyCode.UpArrow))
{
float destY = transform.position.y + _offsetValue;
MoveUnitCommand moveUnitCommand = new MoveUnitCommand(transform, transform.position.x, destY);
MoveHistory.Instance.Add(moveUnitCommand);
return(moveUnitCommand);
}
if (Input.GetKeyDown(KeyCode.DownArrow))
{
float destY = transform.position.y - _offsetValue;
MoveUnitCommand moveUnitCommand = new MoveUnitCommand(transform, transform.position.x, destY);
MoveHistory.Instance.Add(moveUnitCommand);
return(moveUnitCommand);
}
if (Input.GetKeyDown(KeyCode.LeftArrow))
{
float destX = transform.position.x - _offsetValue;
MoveUnitCommand moveUnitCommand = new MoveUnitCommand(transform, destX, transform.position.y);
MoveHistory.Instance.Add(moveUnitCommand);
return(moveUnitCommand);
}
if (Input.GetKeyDown(KeyCode.RightArrow))
{
float destX = transform.position.x + _offsetValue;
MoveUnitCommand moveUnitCommand = new MoveUnitCommand(transform, destX, transform.position.y);
MoveHistory.Instance.Add(moveUnitCommand);
return(moveUnitCommand);
}
if (Input.GetKeyDown(KeyCode.U))
{
return(MoveHistory.Instance.Undo());
}
if (Input.GetKeyDown(KeyCode.R))
{
return(MoveHistory.Instance.Redo());
}
return(null);
}