/**
 * Flade - Flash Dynamics Engine
 * Release 0.5 alpha 
 * Rectangle class
 * Copyright 2004, 2005 Alec Cove
 * 
 * This file is part of Flade. The Flash Dynamics Engine. 
 *	
 * Flade 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Flade 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with Flade; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Flash is a registered trademark of Macromedia
 */

import org.cove.flade.Particle;
import org.cove.flade.ParticleSystem;

class org.cove.flade.Rectangle {
	
	public var p0:Particle;
	public var p1:Particle;
	public var p2:Particle;
	public var p3:Particle;
	
	public function Rectangle (pSystem:ParticleSystem, center, rWidth, rHeight) {

		// top left
		p0 = pSystem.addParticle(center.x - rWidth / 2, center.y - rHeight / 2);
		// top right
		p1 = pSystem.addParticle(center.x + rWidth / 2, center.y - rHeight / 2);
		// bottom right
		p2 = pSystem.addParticle(center.x + rWidth / 2, center.y + rHeight / 2);
		// bottom left
		p3 = pSystem.addParticle(center.x - rWidth / 2, center.y + rHeight / 2);

		// edges
		pSystem.addSpringConstraint(p0, p1);
		pSystem.addSpringConstraint(p1, p2);
		pSystem.addSpringConstraint(p2, p3);
		pSystem.addSpringConstraint(p3, p0);

		// crossing braces
		pSystem.addSpringConstraint(p0, p2);
		pSystem.addSpringConstraint(p1, p3);
	}
}