/*
 * 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_SHAPE
#define RAT_PHYSICS_SHAPE

#include "common.h"
#include "vector.h"
#include "aabb.h"

typedef enum rat_hull_type
{
	rat_hull_type_null=0,
	rat_hull_type_particle=1,
	rat_hull_type_polygon=2,
	rat_hull_type_circle=3,
	rat_num_hull_types=4
} rat_hull_type;

struct rat_hull_class;

typedef struct rat_hull
{
	enum rat_hull_type type;
	struct rat_hull_class *clas;

	void *userdata;
	aabb cached_bb;
} rat_hull;

typedef struct rat_hull_class
{
	void (* destroy)(rat_hull *hull);
	void (* update_cache)(rat_hull *hull,int is_static);
	rat_real (* get_angle)(rat_hull *hull);
	vector2 (* get_pos)(rat_hull *hull);
	void (* set_angle)(rat_hull *hull,rat_real angle);
	void (* set_pos)(rat_hull *hull,vector2 pos);
	int (* point_query)(rat_hull *hull,vector2 point);
} rat_hull_class;

#ifdef __cplusplus
extern "C" {
#endif

void rat_hull_destroy(rat_hull *hull);

void rat_hull_update_cache(rat_hull *hull,int is_static);

rat_real rat_hull_get_angle(rat_hull *hull);
vector2 rat_hull_get_pos(rat_hull *hull);

void rat_hull_set_angle(rat_hull *hull,rat_real angle);
void rat_hull_set_pos(rat_hull *hull,vector2 pos);

int rat_hull_point_query(rat_hull *hull,vector2 point);

extern rat_hull_class rat_particle_class;
extern rat_hull_class rat_circle_class;
extern rat_hull_class rat_polygon_class;

void rat_init_hull_classes();

#ifdef __cplusplus
};
#endif

#endif