lg_light.h

/*
 *      LibGame - Copyright (C) Emmanuel Thomas-Maurin 2011-2024
 *      All rights reserved
 */
 
#ifndef LG_LIGHT_H
#define LG_LIGHT_H
 
typedef enum {
        POINT,
        DIRECTIONAL,
        SPOTLIGHT,
        AMBIENT,
        DIFFUSE,
        EMISSIVE,
        SPECULAR
} lg_light_type;
 
#define WHITE_LIGHT     (LG_Color_f){1.0, 1.0, 1.0, 1.0}
 
/*
 * LG_Light struct
 *
 * Use an array of LG_Light structs if you want to have several different lights in a scene
 */
typedef struct {
        lg_light_type   type;
        union {
                vec3_t  pos;
                vec3_t  dir;
        };
        LG_Color_f      color;
} LG_Light;
 
LG_Light        lg_light(lg_light_type, vec3_t, LG_Color_f);
 
void            lg_set_light_src(LG_Light *, vec3_t);
 
vec3_t          lg_get_light_src(LG_Light *);
 
void            lg_move_light_src(LG_Light *, vec3_t);
 
void            lg_set_light_dir(LG_Light *, vec3_t);
 
vec3_t          lg_get_light_dir(LG_Light *);
 
void            lg_change_light_dir(LG_Light *, LG_EulerAng, const char *);
 
#endif /* LG_LIGHT_H */