private void InitFiniteStateMachine()
{
// Init all states
MainMenuState mainMenu = new MainMenuState(this);
mainMenu.AddTransition(StateTransition.PressStart, StateID.LevelSelect);
LevelSelectState levelSelect = new LevelSelectState(this);
levelSelect.AddTransition(StateTransition.ViewCard, StateID.CardView);
levelSelect.AddTransition(StateTransition.ChoseLevel, StateID.GameScene);
levelSelect.AddTransition(StateTransition.ViewOption, StateID.OptionView);
levelSelect.AddTransition(StateTransition.ViewPay, StateID.PayView);
CardViewState cardView = new CardViewState(this);
cardView.AddTransition(StateTransition.BackToLevelSelect, StateID.LevelSelect);
GameSceneState gameScene = new GameSceneState(this);
gameScene.AddTransition(StateTransition.BackToLevelSelect, StateID.LevelSelect);
OptionViewState optionView = new OptionViewState(this);
optionView.AddTransition(StateTransition.BackToLevelSelect, StateID.LevelSelect);
PayViewState payView = new PayViewState(this);
payView.AddTransition(StateTransition.BackToLevelSelect, StateID.LevelSelect);
// Init finite state machine
_fsm = new FiniteStateMachine();
_fsm.AddFiniteState(mainMenu);
_fsm.AddFiniteState(levelSelect);
_fsm.AddFiniteState(cardView);
_fsm.AddFiniteState(gameScene);
_fsm.AddFiniteState(optionView);
_fsm.AddFiniteState(payView);
}
/// <summary>
/// Select next level to the right
/// </summary>
private void SelectRight()
{
// cant select anything to the right
if (m_currentIndex >= m_levels.Count - 1)
return;
m_currentIndex++;
m_currentPosition = new Vector2(1, 0);
m_levelSourcePosition = new Vector2(1, 0);
m_levelTargetPosition = new Vector2(0, 0);
m_state = LevelSelectState.LEVEL_SELECT_STATE_ANIMATING;
}
/// <summary>
/// Select next level to the left
/// </summary>
private void SelectLeft()
{
// cant select anything to the left..
if (m_currentIndex == 0)
return;
m_currentIndex--;
m_currentPosition = new Vector2(-1, 0);
m_levelSourcePosition = new Vector2(-1, 0);
m_levelTargetPosition = new Vector2(0, 0);
m_state = LevelSelectState.LEVEL_SELECT_STATE_ANIMATING;
}
/// <summary>
/// Update model
/// </summary>
/// <param name="time">Delta time</param>
public void Update(GameTime time)
{
float elapsedTime = (float)time.ElapsedGameTime.TotalSeconds;
//
// Calculate transition interpolation when level
// selection animation is running.
if (m_state == LevelSelectState.LEVEL_SELECT_STATE_ANIMATING)
{
// Update transition timer
m_levelTransitionTimer += elapsedTime;
// Check if the transition is complete
// Then just set positions to target, and change ingame state to none
if (m_levelTransitionTimer >= LEVEL_TRANSITION_TIME)
{
m_levelTransitionTimer = 0;
m_currentPosition = m_levelTargetPosition;
m_state = LevelSelectState.LEVEL_SELECT_STATE_NONE;
}
else
{
// Calculate offset in transition.
m_currentPosition = m_levelSourcePosition + ((m_levelTargetPosition - m_levelSourcePosition) * (m_levelTransitionTimer / LEVEL_TRANSITION_TIME));
}
}
}
