/// <summary>
/// Provides a very basic finite-state machine to control the interactions
/// with the game. When a case is clicked, there are several possible
/// actions according to the UI's current state.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void CaseClicked(object sender, CaseClickedEventArgs e)
{
switch (_state)
{
case CommandState.Selecting:
var select = new SelectCaseCommand(_game, _gameControl);
if (select.CanExectute(e.ClickedCase))
{
select.Execute(e.ClickedCase);
}
else
{
_gameControl.DisplayInvalidCommandOn(e.ClickedCase);
}
break;
case CommandState.Moving:
var unitToMove = ((UnitView)_units.SelectedItem).Unit;
var move = new MoveUnitCommand(_game, unitToMove);
if (move.CanExectute(e.ClickedCase))
{
move.Execute(e.ClickedCase);
ResetUIState();
_gameControl.SelectCase(e.ClickedCase);
}
else
{
_gameControl.DisplayInvalidCommandOn(e.ClickedCase);
}
break;
case CommandState.Attacking:
var attackWithUnit = ((UnitView)_units.SelectedItem).Unit;
var attack = new AttackCommand(attackWithUnit);
if (attack.CanExectute(e.ClickedCase))
{
attack.Execute(e.ClickedCase);
ResetUIState();
_gameControl.SelectCase(e.ClickedCase);
}
else
{
_gameControl.DisplayInvalidCommandOn(e.ClickedCase);
}
break;
default:
_state = CommandState.Selecting;
CaseClicked(sender, e);
break;
}
}