/*
	Netwar
	Copyright (C) 2002  Daniel Grund, Kyle Kakligian, Jason Komutrattananon, & Brian Hibler.

	This file is part of Netwar.

	Netwar 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.

	Netwar 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 Netwar; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package netwar.utils.vectorgraphics;
import netwar.game.GameViewer;
import netwar.utils.*;

public class ZOrderedList extends GraphicThing {
	private Transform t;
	public ZListNode zNode = null;
	int count=0;
	public ZOrderedList(Transform T) {
		t = T;
	}
	public void add(GraphicThing gt) {
		new ZListNode(gt, this);
	}
	Transform getT() { return t; }
	public float getZ(Transform T) {
		t = T;
		return zNode.getZ(t);
	}
	public void draw(GameViewer v) {
		if(!isOnScreen(v.getTransform()))
			return;
		ZListNode.draw(v, zNode);
	}
	public GraphicThing translate(Point3D offset) {
		ZListNode zln;
		ZListNode zlna[] = new ZListNode[count];
		int i=0;
		for(zln = zNode; zln != null; zln = zln.getNext()) {
			zlna[i++] = zln;
		}
		for(i=0;i<count;i++)
			zlna[i].getThing().translate(offset);
		update();
		return this;
	}
	public GraphicThing rotate(Point3D axisPt, Point3D axisDir, int angle) {
		ZListNode zln;
		ZListNode zlna[] = new ZListNode[count];
		int i=0;
		for(zln = zNode; zln != null; zln = zln.getNext()) {
			zlna[i++] = zln;
		}
		for(i=0;i<count;i++)
			zlna[i].getThing().rotate(axisPt, axisDir, angle);
		update();
		return this;
	}
	
	public boolean isOnScreen(Transform t) {
		ZListNode zln;
		ZListNode zlna[] = new ZListNode[count];
		int i=0;
		for(zln = zNode; zln != null; zln = zln.getNext()) {
			zlna[i++] = zln;
		}
		for(i=0;i<count;i++)
			if(zlna[i].getThing().isOnScreen(t))
				return true;
		return false;
	}
	public void explode(Point3D epicenter) {
		ZListNode zln;
		ZListNode zlna[] = new ZListNode[count];
		GraphicThing thing;
		int i=0;
		for(zln = zNode; zln != null; zln = zln.getNext()) {
			zlna[i++] = zln;
		}
		for(i=0;i<zlna.length;i++) {
			thing = zlna[i].getThing();
			thing.kill();
			thing.explode(epicenter);
		}
		kill();
	}
	Point3D getCenter() {
		return zNode.getThing().getCenter();
	}
	void unlink() {
		ZListNode zln;
		ZListNode zlna[] = new ZListNode[count];
		int i=0;
		for(zln = zNode; zln != null; zln = zln.getNext()) {
			zlna[i++] = zln;
		}
		for(i=0;i<count;i++)
			zlna[i].getThing().unlink();
	}
	public GraphicThing copy() {
		ZOrderedList zol = new ZOrderedList(t);
		ZListNode zln;
		for(zln = zNode; zln != null; zln = zln.getNext()) {
			zol.add(zln.getThing().copy());
		}
		return zol;
	}
}