Package de.gurkenlabs.litiengine.input

Interface IKeyboard

All Known Implementing Classes:

Keyboard

public interface IKeyboard

The IKeyboard interface is the engine's API for receiving keyboard input events.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	IKeyboard.KeyPressedListener	This listener interface receives pressed events for the keyboard.
static interface	IKeyboard.KeyReleasedListener	This listener interface receives released events for the keyboard.
static interface	IKeyboard.KeyTypedListener	This listener interface receives typed events for the keyboard.

Method Summary

Modifier and Type	Method	Description
void	addKeyListener(KeyListener listener)	Register for key events.
void	clearExplicitListeners()	Removes all registered event consumers from the Keyboard instance.
void	consumeAlt(boolean consume)	Specifies whether the engine should consume key events with the ALT modifier.
boolean	isPressed(int keyCode)	Checks whether the key with the specified keyCode is currently being pressed.
void	onKeyPressed(int keyCode, IKeyboard.KeyPressedListener listener)	Adds the specified key pressed listener to receive events when the key with the defined keyCode has been pressed.
void	onKeyPressed(IKeyboard.KeyPressedListener listener)	Adds the specified key pressed listener to receive events when any key has been pressed.
void	onKeyReleased(int keyCode, IKeyboard.KeyReleasedListener listener)	Adds the specified key released listener to receive events when the key with the defined keyCode has been released.
void	onKeyReleased(IKeyboard.KeyReleasedListener listener)	Adds the specified key released listener to receive events when any key has been released.
void	onKeyTyped(int keyCode, IKeyboard.KeyTypedListener listener)	Adds the specified key typed listener to receive events when the key with the defined keyCode has been typed.
void	onKeyTyped(IKeyboard.KeyTypedListener listener)	Adds the specified key typed listener to receive events when any key has been typed.
void	removeKeyListener(KeyListener listener)	Unregister the specified listener from key events.
void	removeKeyPressedListener(int keyCode, IKeyboard.KeyPressedListener listener)	Unregister the specified listener from key pressed events.
void	removeKeyPressedListener(IKeyboard.KeyPressedListener listener)	Unregister the specified listener from key pressed events.
void	removeKeyReleasedListener(int keyCode, IKeyboard.KeyReleasedListener listener)	Unregister the specified listener from key released events.
void	removeKeyReleasedListener(IKeyboard.KeyReleasedListener listener)	Unregister the specified listener from key released events.
void	removeKeyTypedListener(int keyCode, IKeyboard.KeyTypedListener listener)	Unregister the specified listener from key typed events.
void	removeKeyTypedListener(IKeyboard.KeyTypedListener listener)	Unregister the specified listener from key typed events.
boolean	wasReleased(int keyCode)	Checks whether the key with the specified keyCode was recently released.

Method Details

consumeAlt

void consumeAlt(boolean consume)

Specifies whether the engine should consume key events with the ALT modifier.

This is useful to prevent unintended behavior of the default key processing.

Parameters:

consume - True if the events with the ALT modifier should be consumed.

See Also:

• InputEvent.consume()
• InputEvent.isAltDown()

isPressed

boolean isPressed(int keyCode)

Checks whether the key with the specified keyCode is currently being pressed.

Parameters:

keyCode - The keyCode to check for.

Returns:

True if the key with the specified code is currently pressed.

See Also:

• onKeyPressed(KeyPressedListener)
• onKeyPressed(int, KeyPressedListener)

wasReleased

boolean wasReleased(int keyCode)

Checks whether the key with the specified keyCode was recently released.

Parameters:

keyCode - The keyCode to check for.

Returns:

True if the key with the specified code was recently released.

See Also:

• onKeyReleased(KeyReleasedListener)
• onKeyReleased(int, KeyReleasedListener)

onKeyPressed

void onKeyPressed(int keyCode,
 IKeyboard.KeyPressedListener listener)

Adds the specified key pressed listener to receive events when the key with the defined keyCode has been pressed.

Parameters:

keyCode - The keyCode to capture the key pressed event for.

listener - The listener to add.

See Also:

• KeyListener.keyPressed(KeyEvent)
• KeyEvent.KEY_PRESSED

removeKeyPressedListener

void removeKeyPressedListener(int keyCode,
 IKeyboard.KeyPressedListener listener)

Unregister the specified listener from key pressed events.

Parameters:

keyCode - The keyCode for which to remove the listener.

listener - The listener to remove.

onKeyReleased

void onKeyReleased(int keyCode,
 IKeyboard.KeyReleasedListener listener)

Adds the specified key released listener to receive events when the key with the defined keyCode has been released.

Parameters:

keyCode - The keyCode to capture the key released event for.

listener - The listener to add.

See Also:

• KeyListener.keyReleased(KeyEvent)
• KeyEvent.KEY_RELEASED

removeKeyReleasedListener

void removeKeyReleasedListener(int keyCode,
 IKeyboard.KeyReleasedListener listener)

Unregister the specified listener from key released events.

Parameters:

keyCode - The keyCode for which to remove the listener.

listener - The listener to remove.

onKeyTyped

void onKeyTyped(int keyCode,
 IKeyboard.KeyTypedListener listener)

Adds the specified key typed listener to receive events when the key with the defined keyCode has been typed.

Parameters:

keyCode - The keyCode to capture the key typed event for.

listener - The listener to add.

See Also:

• KeyListener.keyTyped(KeyEvent)
• KeyEvent.KEY_TYPED

removeKeyTypedListener

void removeKeyTypedListener(int keyCode,
 IKeyboard.KeyTypedListener listener)

Unregister the specified listener from key typed events.

Parameters:

keyCode - The keyCode for which to remove the listener.

listener - The listener to remove.

onKeyPressed

void onKeyPressed(IKeyboard.KeyPressedListener listener)

Adds the specified key pressed listener to receive events when any key has been pressed.

Parameters:

listener - The listener to add.

See Also:

• KeyListener.keyPressed(KeyEvent)
• KeyEvent.KEY_PRESSED

removeKeyPressedListener

void removeKeyPressedListener(IKeyboard.KeyPressedListener listener)

Unregister the specified listener from key pressed events.

Parameters:

listener - The listener to remove.

onKeyReleased

void onKeyReleased(IKeyboard.KeyReleasedListener listener)

Adds the specified key released listener to receive events when any key has been released.

Parameters:

listener - The listener to add.

See Also:

• KeyListener.keyReleased(KeyEvent)
• KeyEvent.KEY_RELEASED

removeKeyReleasedListener

void removeKeyReleasedListener(IKeyboard.KeyReleasedListener listener)

Unregister the specified listener from key released events.

Parameters:

listener - The listener to remove.

onKeyTyped

void onKeyTyped(IKeyboard.KeyTypedListener listener)

Adds the specified key typed listener to receive events when any key has been typed.

Parameters:

listener - The listener to add.

See Also:

• KeyListener.keyTyped(KeyEvent)
• KeyEvent.KEY_TYPED

removeKeyTypedListener

void removeKeyTypedListener(IKeyboard.KeyTypedListener listener)

Unregister the specified listener from key typed events.

Parameters:

listener - The listener to remove.

clearExplicitListeners

void clearExplicitListeners()

Removes all registered event consumers from the Keyboard instance. This does not affect registered KeyListener instances.

See Also:

• onKeyPressed(KeyPressedListener)
• onKeyPressed(int, KeyPressedListener)
• onKeyReleased(KeyReleasedListener)
• onKeyReleased(int, KeyReleasedListener)
• onKeyTyped(KeyTypedListener)
• onKeyTyped(int, KeyTypedListener)

addKeyListener

void addKeyListener(KeyListener listener)

Register for key events.

Parameters:

listener - The listener to add.

removeKeyListener

void removeKeyListener(KeyListener listener)

Unregister the specified listener from key events.

Parameters:

listener - The listener to remove.