/// <summary>
/// Evaluates the action against a given InputState.
/// </summary>
/// <param name="state">The InputState to test for the action.</param>
/// <param name="controllingPlayer">The player to test, or null to allow any player.</param>
/// <param name="player">If controllingPlayer is null, this is the player that performed the action.</param>
/// <returns>True if the action occurred, false otherwise.</returns>
public bool Evaluate(InputState state, PlayerIndex? controllingPlayer, out PlayerIndex player)
{
// Figure out which delegate methods to map from the state which takes care of our "newPressOnly" logic
ButtonPress buttonTest;
KeyPress keyTest;
if (newPressOnly)
{
buttonTest = state.IsNewButtonPress;
keyTest = state.IsNewKeyPress;
}
else
{
buttonTest = state.IsButtonPressed;
keyTest = state.IsKeyPressed;
}
// Now we simply need to invoke the appropriate methods for each button and key in our collections
foreach (Buttons button in buttons)
{
if (buttonTest(button, controllingPlayer, out player))
return true;
}
foreach (Keys key in keys)
{
if (keyTest(key, controllingPlayer, out player))
return true;
}
// If we got here, the action is not matched
player = PlayerIndex.One;
return false;
}
/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
public override void HandleInput(GameTime gameTime, InputState input)
{
// For input tests we pass in our ControllingPlayer, which may
// either be null (to accept input from any player) or a specific index.
// If we pass a null controlling player, the InputState helper returns to
// us which player actually provided the input. We pass that through to
// OnSelectEntry and OnCancel, so they can tell which player triggered them.
PlayerIndex playerIndex;
// Move to the previous menu entry?
if (menuUp.Evaluate(input, ControllingPlayer, out playerIndex))
{
selectedEntry--;
if (selectedEntry < 0)
selectedEntry = menuEntries.Count - 1;
}
// Move to the next menu entry?
if (menuDown.Evaluate(input, ControllingPlayer, out playerIndex))
{
selectedEntry++;
if (selectedEntry >= menuEntries.Count)
selectedEntry = 0;
}
if (menuSelect.Evaluate(input, ControllingPlayer, out playerIndex))
{
OnSelectEntry(selectedEntry, playerIndex);
}
else if (menuCancel.Evaluate(input, ControllingPlayer, out playerIndex))
{
OnCancel(playerIndex);
}
}
/// <summary>
/// Lets the game respond to player input. Unlike the Update method,
/// this will only be called when the gameplay screen is active.
/// </summary>
public override void HandleInput(GameTime gameTime, InputState input)
{
if (input == null)
throw new ArgumentNullException("input");
// Look up inputs for the active player profile.
int playerIndex = (int)ControllingPlayer.Value;
_keyboardState = input.CurrentKeyboardStates[playerIndex];
_gamePadState = input.CurrentGamePadStates[playerIndex];
_mouseState = input.CurrentMouseStates[playerIndex];
// The game pauses either if the user presses the pause button, or if
// they unplug the active gamepad. This requires us to keep track of
// whether a gamepad was ever plugged in, because we don't want to pause
// on PC if they are playing with a keyboard and have no gamepad at all!
bool gamePadDisconnected = !_gamePadState.IsConnected &&
input.GamePadWasConnected[playerIndex];
PlayerIndex playerInd;
if (pauseAction.Evaluate(input, ControllingPlayer, out playerInd) || gamePadDisconnected) {
ScreenManager.AddScreen(new PauseMenuScreen(), ControllingPlayer);
} else {
//this.player.HandleInput(input);
//// Otherwise move the player position.
//Vector2 movement = Vector2.Zero;
//if (keyboardState.IsKeyDown(Keys.Left))
// movement.X--;
//if (keyboardState.IsKeyDown(Keys.Right))
// movement.X++;
//if (keyboardState.IsKeyDown(Keys.Up))
// movement.Y--;
//if (keyboardState.IsKeyDown(Keys.Down))
// movement.Y++;
//Vector2 thumbstick = gamePadState.ThumbSticks.Left;
//movement.X += thumbstick.X;
//movement.Y -= thumbstick.Y;
//if (movement.Length() > 1)
// movement.Normalize();
//playerPosition += movement * 8f;
}
}
/// <summary>
/// Responds to user input, accepting or cancelling the message box.
/// </summary>
public override void HandleInput(GameTime gameTime, InputState input)
{
PlayerIndex playerIndex;
// We pass in our ControllingPlayer, which may either be null (to
// accept input from any player) or a specific index. If we pass a null
// controlling player, the InputState helper returns to us which player
// actually provided the input. We pass that through to our Accepted and
// Cancelled events, so they can tell which player triggered them.
if (menuSelect.Evaluate(input, ControllingPlayer, out playerIndex))
{
// Raise the accepted event, then exit the message box.
if (Accepted != null)
Accepted(this, new PlayerIndexEventArgs(playerIndex));
ExitScreen();
}
else if (menuCancel.Evaluate(input, ControllingPlayer, out playerIndex))
{
// Raise the cancelled event, then exit the message box.
if (Cancelled != null)
Cancelled(this, new PlayerIndexEventArgs(playerIndex));
ExitScreen();
}
}
/// <summary>
/// Allows the screen to handle user input. Unlike Update, this method
/// is only called when the screen is active, and not when some other
/// screen has taken the focus.
/// </summary>
public virtual void HandleInput(GameTime gameTime, InputState input)
{
}
