light.h

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/*
** Jo Sega Saturn Engine
** Copyright (c) 2012-2026, Johannes Fetz (johannesfetz@gmail.com)
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
**     * Redistributions of source code must retain the above copyright
**       notice, this list of conditions and the following disclaimer.
**     * Redistributions in binary form must reproduce the above copyright
**       notice, this list of conditions and the following disclaimer in the
**       documentation and/or other materials provided with the distribution.
**     * Neither the name of the Johannes Fetz nor the
**       names of its contributors may be used to endorse or promote products
**       derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
** DISCLAIMED. IN NO EVENT SHALL Johannes Fetz BE LIABLE FOR ANY
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
#ifndef __JO_LIGHT_H__
# define __JO_LIGHT_H__
 
#ifdef JO_COMPILE_WITH_3D_SUPPORT

# define JO_MAX_POINT_LIGHTS                (8)
# define JO_MAX_POINT_LIGHT_MESHES          (64)
# define JO_POINT_LIGHT_STRENGTH_DEFAULT    (256)

int                                 jo_3d_point_light_add(const jo_pos3D_fixed * const position, const unsigned char r, const unsigned char g,
                                                          const unsigned char b, const int radius, const int strength);

void                                jo_3d_point_light_set_intensity(const int id, const int intensity);

void                                jo_3d_point_light_set_color(const int id, const unsigned char r, const unsigned char g, const unsigned char b);

void                                jo_3d_point_light_set_position(const int id, const jo_pos3D_fixed * const position);

void                                jo_3d_point_light_set_spot(const int id, const jo_pos3D_fixed * const direction, const int angle);

void                                jo_3d_point_light_set_shadows(const int id, const bool shadows);

void                                jo_3d_point_light_set_sampled(const int id, const bool sampled);

void                                jo_3d_point_light_enable(const int id, const bool enabled);

void                                jo_3d_point_lights_enable(const bool enabled);

bool                                jo_3d_point_lights_add_mesh(jo_3d_mesh * const mesh);

void                                jo_3d_point_lights_set_mesh_seen(const jo_3d_mesh * const mesh, const bool seen);

void                                jo_3d_point_lights_set_occlusion(bool (*hit)(const jo_pos3D_fixed * const origin, const jo_pos3D_fixed * const dir,
                                                                                 const jo_fixed max_t));

void                                jo_3d_point_lights_update(void);

void                                jo_3d_point_lights_sample(const jo_pos3D_fixed * const position, int * const r, int * const g, int * const b);

void                                jo_3d_point_lights_clear(void);
 
#endif /* !JO_COMPILE_WITH_3D_SUPPORT */
 
#endif /* !__JO_LIGHT_H__ */
 
/*
** END OF FILE
*/