/*
Copyright (C) 2004 Parallel Realities

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; either version 2
of the License, or (at your option) any later version.

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.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#include "headers.h"

List::List()
{
	objectTail = &objectHead;
}

void List::add(GameObject *object)
{
	objectTail->next = object;
	objectTail = object;
}

void List::remove(GameObject *previous, GameObject *object)
{
	if (object == objectTail)
	{
		objectTail = previous;
	}
	
	previous->next = object->next;
	delete object;
}

void List::clear()
{
	int count = 0;

	GameObject *obj, *obj2;

	for (obj = objectHead.next ; obj != NULL ; obj = obj2)
	{
		obj2 = obj->next;
		delete obj;
		count++;
	}

	objectHead.next = NULL;
	objectTail = &objectHead;
}

GameObject *List::getHead()
{
	return &objectHead;
}

GameObject *List::getTail()
{
	return objectTail;
}