/// <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(InputState input)
{
}
/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
public override void HandleInput(InputState input)
{
// Move to the previous menu entry?
if(input.IsMenuUp(ControllingPlayer)) {
selectedEntry--;
if(selectedEntry < 0)
selectedEntry = menuEntries.Count - 1;
}
// Move to the next menu entry?
if(input.IsMenuDown(ControllingPlayer)) {
selectedEntry++;
if(selectedEntry >= menuEntries.Count)
selectedEntry = 0;
}
// Accept or cancel the menu? 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;
if(input.IsMenuSelect(ControllingPlayer, out playerIndex)) {
OnSelectEntry(selectedEntry, playerIndex);
}
else if(input.IsMenuCancel(ControllingPlayer, out playerIndex)) {
OnCancel(playerIndex);
}
}
/// <summary>
/// Responds to user input, accepting or cancelling the message box.
/// </summary>
public override void HandleInput(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(input.IsMenuSelect(ControllingPlayer, out playerIndex)) {
// Raise the accepted event, then exit the message box.
if(Accepted != null)
Accepted(this, new PlayerIndexEventArgs(playerIndex));
ExitScreen();
}
else if(input.IsMenuCancel(ControllingPlayer, out playerIndex)) {
// Raise the cancelled event, then exit the message box.
if(Cancelled != null)
Cancelled(this, new PlayerIndexEventArgs(playerIndex));
ExitScreen();
}
}
/// <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(InputState input)
{
if(input == null)
throw new ArgumentNullException("input");
// Look up inputs for the active player profile.
int playerIndex = (int) ControllingPlayer.Value;
KeyboardState keyboardState = input.CurrentKeyboardStates[playerIndex];
GamePadState gamePadState = input.CurrentGamePadStates[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];
if(input.IsPauseGame(ControllingPlayer) || gamePadDisconnected) {
ScreenManager.AddScreen(new PauseMenuScreen(), ControllingPlayer);
}
else {
// Otherwise move the player position.
Vector2 movement = Vector2.Zero;
foreach(Keys key in User.KeyMapping[Action.MoveLeft])
if(keyboardState.IsKeyDown(key)) {
movement.X--;
break;
}
foreach(Keys key in User.KeyMapping[Action.MoveRight])
if(keyboardState.IsKeyDown(key)) {
movement.X++;
break;
}
foreach(Keys key in User.KeyMapping[Action.Jump])
if(keyboardState.IsKeyDown(key)) {
movement.Y--;
break;
}
foreach(Keys key in User.KeyMapping[Action.Duck])
if(keyboardState.IsKeyDown(key)) {
movement.Y++;
break;
}
Vector2 thumbstick = gamePadState.ThumbSticks.Left;
movement.X += thumbstick.X;
movement.Y -= thumbstick.Y;
if(movement.Length() > 1)
movement.Normalize();
playerPosition += movement * 2;
}
}