2 * Copyright (c) 2003-2009 jMonkeyEngine
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17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
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34 * EDIT: 02/08/2004 - Added update(boolean updateState) to allow for a
35 * WidgetViewport to update an AbstractInputHandler
36 * without polling the mouse. GOP
39 package com.jme.input;
41 import com.jme.input.action.InputAction;
42 import com.jme.input.action.InputActionEvent;
45 * <code>RelativeMouse</code> defines a mouse controller that only maintains
46 * the relative change from one poll to the next. This does not maintain the
47 * position of a mouse in a rendering window. This type of controller is
48 * typically useful for a first person mouse look or similar.
51 * @version $Id: RelativeMouse.java,v 1.18 2006/01/13 19:39:27 renanse Exp $
53 public class RelativeMouse extends Mouse {
55 private static final long serialVersionUID = 1L;
56 private InputAction updateAction = new InputAction() {
57 public void performAction( InputActionEvent evt ) {
58 localTranslation.x = MouseInput.get().getXDelta() * _speed;
59 localTranslation.y = MouseInput.get().getYDelta() * _speed;
60 worldTranslation.set(localTranslation);
61 hotSpotLocation.set(localTranslation).addLocal(hotSpotOffset);
64 private InputHandler registeredInputHandler;
65 protected float _speed = 1.0f;
68 * Constructor creates a new <code>RelativeMouse</code> object.
71 * the name of the scene element. This is required for
72 * identification and comparision purposes.
74 public RelativeMouse(String name) {
78 public void registerWithInputHandler( InputHandler inputHandler ) {
80 if ( registeredInputHandler != null )
82 registeredInputHandler.removeAction( updateAction );
84 registeredInputHandler = inputHandler;
85 if ( inputHandler != null )
87 inputHandler.addAction( updateAction, InputHandler.DEVICE_MOUSE, InputHandler.BUTTON_NONE, 0, true );
92 * Sets the speed multiplier for updating the cursor position
96 public void setSpeed(float speed) {