/// <summary>
/// Creates a new StateBasedGame.
/// </summary>
public StateBasedGame()
{
Graphics = new GraphicsDeviceManager(this);
SwitchingStates = true;
SwitchType = true;
SwitchTimer = 1000;
states = new Dictionary<int, BasicGameState>();
currentState = null;
nextState = null;
}
/// <summary>
/// Add a new state to the container.
/// if the satte is the first, which will be added to the
/// list then this state becomes the current state.
/// </summary>
/// <param name="state">the state to add</param>
public void AddState(BasicGameState state)
{
state.Init(this);
if (currentState == null)
{
currentState = state;
currentState.Enter(this);
}
states.Add(state.GetStateID(), state);
}
/// <summary>
/// Sets a State. Note that this is an instant change, no transitioning.
/// </summary>
/// <param name="id"></param>
public void SetState(int id)
{
currentState = states[id];
}
/// <summary>
/// Called for updates.
/// </summary>
/// <param name="gameTime"> the game time of the current context</param>
protected override void Update(GameTime gameTime)
{
//
if (SwitchingStates)
{
if (SwitchTimer <= 0)
{
if (!SwitchType)
{
currentState = nextState;
currentState.Enter(this);
SwitchType = true;
SwitchTimer = 1000;
}
else
SwitchingStates = false;
}
else
SwitchTimer -= gameTime.ElapsedGameTime.Milliseconds;
}
else
{
currentState.Update(gameTime, this);
}
base.Update(gameTime);
}
/// <summary>
/// Enters a state.
/// </summary>
/// <param name="id"> the id of the state</param>
public void EnterState(int id)
{
currentState.Exit(this);
nextState = states[id];
SwitchingStates = true;
SwitchType = false;
SwitchTimer = 1000;
}