/// <summary>
/// Starts the specified initial state.
/// </summary>
/// <param name="initialState"> The initial state. </param>
public void Start(IState initialState)
{
try
{
if (_isStarted)
{
return;
}
_isStarted = true;
if (!_stateMap.States.Contains(initialState))
{
throw new StateMachineException("The specified start state does not exist in the state map");
}
ActiveStates.Add(initialState);
if (StartEvent != null)
{
StartEvent.Execute(StateContainer, _stateMap);
}
foreach (IState state in ActiveStates)
{
if (state.Enter != null)
{
state.Enter.CallOnEach(x => x.Execute(StateContainer, _stateMap));
}
}
}
catch (Exception ex)
{
throw new StateMachineException(ex.Message);
}
}
public override void Update(GameTime gameTime)
{
//Update Keyboard and Mouse States
PreviousKeyboardState = CurrentKeyboardState;
CurrentKeyboardState = Keyboard.GetState();
PreviousMouseState = CurrentMouseState;
CurrentMouseState = Mouse.GetState();
//Clear Data Structures
ActiveActions.Clear();
ActiveStates.Clear();
ActiveRanges.Clear();
MappedKeyboardKeys.Clear();
MappedMouseButtons.Clear();
MappedMouseRanges.Clear();
RangeValues.Clear();
MouseScreenLocation = new Point(CurrentMouseState.X, CurrentMouseState.Y);
//Sort EntityList by InputMap Priority
EntityList.Sort((Entity x, Entity y) =>
{
if (x.GetComponent <CInputMap>().Priority < y.GetComponent <CInputMap>().Priority)
{
return(-1);
}
else if (x.GetComponent <CInputMap>().Priority > y.GetComponent <CInputMap>().Priority)
{
return(1);
}
else
{
return(0);
}
});
//Map Raw Inputs to Actions, States and Ranges
foreach (Entity e in EntityList)
{
var inputMap = e.GetComponent <CInputMap>();
//KEYBOARD KEY TO ACTION
foreach (KeyValuePair <Keys, int> pair in inputMap.KeyboardKeyToAction)
{
if (!MappedKeyboardKeys.Contains(pair.Key))
{
if (PreviousKeyboardState.IsKeyUp(pair.Key) && CurrentKeyboardState.IsKeyDown(pair.Key))
{
ActiveActions.Add(pair.Value);
MappedKeyboardKeys.Add(pair.Key);
}
}
}
//KEYBOARD KEY TO STATE
foreach (KeyValuePair <Keys, int> pair in inputMap.KeyboardKeyToState)
{
if (!MappedKeyboardKeys.Contains(pair.Key))
{
if (CurrentKeyboardState.IsKeyDown(pair.Key))
{
ActiveStates.Add(pair.Value);
MappedKeyboardKeys.Add(pair.Key);
}
}
}
//MOUSE BUTTON TO ACTION
foreach (KeyValuePair <MouseButtons, int> pair in inputMap.MouseButtonToAction)
{
if (!MappedMouseButtons.Contains(pair.Key))
{
if (pair.Key == MouseButtons.LeftButton)
{
if (PreviousMouseState.LeftButton == ButtonState.Released && CurrentMouseState.LeftButton == ButtonState.Pressed)
{
ActiveActions.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.RightButton)
{
if (PreviousMouseState.RightButton == ButtonState.Released && CurrentMouseState.RightButton == ButtonState.Pressed)
{
ActiveActions.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.MiddleButton)
{
if (PreviousMouseState.MiddleButton == ButtonState.Released && CurrentMouseState.MiddleButton == ButtonState.Pressed)
{
ActiveActions.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.XButton1)
{
if (PreviousMouseState.XButton1 == ButtonState.Released && CurrentMouseState.XButton1 == ButtonState.Pressed)
{
ActiveActions.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.XButton2)
{
if (PreviousMouseState.XButton2 == ButtonState.Released && CurrentMouseState.XButton2 == ButtonState.Pressed)
{
ActiveActions.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
}
}
//MOUSE BUTTON TO STATE
foreach (KeyValuePair <MouseButtons, int> pair in inputMap.MouseButtonToState)
{
if (!MappedMouseButtons.Contains(pair.Key))
{
if (pair.Key == MouseButtons.LeftButton)
{
if (CurrentMouseState.LeftButton == ButtonState.Pressed)
{
ActiveStates.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.RightButton)
{
if (CurrentMouseState.RightButton == ButtonState.Pressed)
{
ActiveStates.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.MiddleButton)
{
if (CurrentMouseState.MiddleButton == ButtonState.Pressed)
{
ActiveStates.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.XButton1)
{
if (CurrentMouseState.XButton1 == ButtonState.Pressed)
{
ActiveStates.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
if (pair.Key == MouseButtons.XButton2)
{
if (CurrentMouseState.XButton2 == ButtonState.Pressed)
{
ActiveStates.Add(pair.Value);
MappedMouseButtons.Add(pair.Key);
}
}
}
}
//MOUSE RANGE TO RANGE
foreach (KeyValuePair <MouseRanges, int> pair in inputMap.MouseRangeToRange)
{
if (!MappedMouseRanges.Contains(pair.Key))
{
if (pair.Key == MouseRanges.ScrollDelta)
{
ActiveRanges.Add(pair.Value);
RangeValues.Add(pair.Value, CurrentMouseState.ScrollWheelValue - PreviousMouseState.ScrollWheelValue);
MappedMouseRanges.Add(pair.Key);
}
if (pair.Key == MouseRanges.MouseHorizontalDelta)
{
float hCenter = ViewPort.Width / 2;
ActiveRanges.Add(pair.Value);
RangeValues.Add(pair.Value, CurrentMouseState.X - hCenter);
MappedMouseRanges.Add(pair.Key);
}
if (pair.Key == MouseRanges.MouseVerticalDelta)
{
float vCenter = ViewPort.Height / 2;
ActiveRanges.Add(pair.Value);
RangeValues.Add(pair.Value, CurrentMouseState.Y - vCenter);
MappedMouseRanges.Add(pair.Key);
}
}
}
}
//Given the Mapped Inputs, Call all Callbacks and see if they can use the Mapped Input
foreach (Entity e in EntityList)
{
var inputHandlers = e.GetComponent <CInputHandlers>();
foreach (int callbackID in inputHandlers.InputHandlerIDs)
{
GameRegistry.FetchInputCallback(callbackID)(e, gameTime, ActiveActions, ActiveStates, ActiveRanges, RangeValues);
}
}
}
