keycollisionbehavior.java

《Java 3D编程》的源代码

/**********************************************************
  Copyright (C) 2001 	Daniel Selman

  First distributed with the book "Java 3D Programming"
  by Daniel Selman and published by Manning Publications.
  http://manning.com/selman

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation, version 2.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  The license can be found on the WWW at:
  http://www.fsf.org/copyleft/gpl.html

  Or by writing to:
  Free Software Foundation, Inc.,
  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

  Author can be contacted at:
  Daniel Selman: [e-mail]

  If you make changes you think others would like please
  contact Daniel Selman.
**************************************************************/

package org.selman.java3d.book.keynavigatetest;

import javax.vecmath.*;
import javax.media.j3d.*;

import org.selman.java3d.book.common.*;

public class KeyCollisionBehavior extends KeyBehavior
{	
	private CollisionChecker		m_CollisionChecker = null;


	public KeyCollisionBehavior( TransformGroup tg, CollisionDetector collisionDetector )
	{
		super( tg );

		m_CollisionChecker = new CollisionChecker( tg, collisionDetector, true );
	}

	protected void updateTransform( )
	{
		if( m_CollisionChecker.isCollision( transform3D ) == false )
			transformGroup.setTransform( transform3D );
	}

	// dissallow rotation up or down
	protected void altMove( int keycode )
	{
	}

	// dissallow moving up or down
	protected void controlMove( int keycode )
	{
	}
}