xref: /external/jmonkeyengine/engine/src/core/com/jme3/app/FlyCamAppState.java

/*
 * Copyright (c) 2009-2012 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.jme3.app;

import com.jme3.app.state.AbstractAppState;
import com.jme3.app.state.AppStateManager;
import com.jme3.input.FlyByCamera;


/**
 *  Manages a FlyByCamera.
 *
 *  @author    Paul Speed
 */
public class FlyCamAppState extends AbstractAppState {

    private Application app;
    private FlyByCamera flyCam;

    public FlyCamAppState() {
    }

    /**
     *  This is called by SimpleApplication during initialize().
     */
    void setCamera( FlyByCamera cam ) {
        this.flyCam = cam;
    }

    public FlyByCamera getCamera() {
        return flyCam;
    }

    @Override
    public void initialize(AppStateManager stateManager, Application app) {
        super.initialize(stateManager, app);

        this.app = app;

        if (app.getInputManager() != null) {

            if (flyCam == null) {
                flyCam = new FlyByCamera(app.getCamera());
            }

            flyCam.registerWithInput(app.getInputManager());
        }
    }

    @Override
    public void setEnabled(boolean enabled) {
        super.setEnabled(enabled);

        flyCam.setEnabled(enabled);
    }

    @Override
    public void cleanup() {
        super.cleanup();

        flyCam.unregisterInput();
    }


}