light.c

著名物理引擎Hawk的源代码

/* light.c, HAWK game engine
 *
 * Copyright 1997-1998 by Phil Frisbie, Jr.
 * for Hawk Software
 *
 */

#include "hawk.h"
#include "internal.h"

/* returns the color of the floor lighting below the object */
void lightGetObject(OBJECT *o, vec3_t color)
{
	color[R] = 1.0;
	color[G] = 1.0;
	color[B] = 1.0;

	if(o->type&O_PULSE)
	{
		float	t = (float)(sin((float)Engine.gameframes / 8.0f) + 1.0f) / 2.0f;
		float	c = 0.7 + (0.3 * t);

		color[R] = c;
		color[G] = c;
		color[B] = c;
		return;
	}

	/* find the surface */

	/* find the closest texel in the lightmap */

}

/* returns FALSE if there is no dynamic lighting needed, or TRUE and
* the color and normal of the closest/brightest dynamic light source
*/

BOOL lightGetObjectDynamic(OBJECT *o, vec3_t color, vec3_t normal)
{
	if(o->type&O_FULLBRIGHT)
		return FALSE;

	return FALSE;
}

/*
* updates the dynamic lighting
*/

void lightUpdate(void)
{
}