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/*************************************************************************
* Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of The Dimension Library. *
* *
* The Dimension Library is free software; you can redistribute it and/ *
* or modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of the *
* License, or (at your option) any later version. *
* *
* The Dimension Library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
#include "dimension.h"
/*
* Point light source
*/
static dmnsn_color
dmnsn_point_light_fn(const dmnsn_light *light, dmnsn_vector v)
{
return *(dmnsn_color *)light->ptr;
}
dmnsn_light *
dmnsn_new_point_light(dmnsn_vector x0, dmnsn_color color)
{
dmnsn_light *light = dmnsn_new_light();
if (light) {
/* Allocate room for the transformation matrix */
dmnsn_color *ptr = malloc(sizeof(dmnsn_color));
if (!ptr) {
dmnsn_delete_light(light);
return NULL;
}
*ptr = color;
light->x0 = x0;
light->light_fn = &dmnsn_point_light_fn;
light->free_fn = &free;
light->ptr = ptr;
}
return light;
}
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