/*
 * Copyright (c) 2008-2009 Bill Whitacre http://rampancy.g0dsoft.com
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
*/

#ifndef RAT_PHYSICS_COLLISION_FILTER
#define RAT_PHYSICS_COLLISION_FILTER

#include "common.h"
#include "body.h"

typedef struct rat_collision_filter
{
	int tag_a,tag_b;
	struct rat_collision_filter *next,*prev;
} rat_collision_filter;

typedef struct rat_collision_filter_list
{
	rat_collision_filter *root;
	rat_collision_filter *last;
	unsigned int count;
} rat_collision_filter_list;

#ifdef __cplusplus
extern "C" {
#endif

rat_collision_filter_list *rat_collision_filter_list_create();
void rat_collision_filter_list_destroy(rat_collision_filter_list *list);

void rat_collision_filter_list_add_root(rat_collision_filter_list *list,int tag_a,int tag_b);
void rat_collision_filter_list_add_last(rat_collision_filter_list *list,int tag_a,int tag_b);
int rat_collision_filter_list_remove_root(rat_collision_filter_list *list,int tag_a,int tag_b);
int rat_collision_filter_list_remove_last(rat_collision_filter_list *list,int tag_a,int tag_b);
void rat_collision_filter_list_clear(rat_collision_filter_list *list);

int rat_collision_filter_list_hit(rat_collision_filter_list *list,int tag_a,int tag_b);

#ifdef __cplusplus
}
#endif

#endif