entities.h

/*  Copyright (C) 1996-1997  Id Software, Inc.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

    See file, 'COPYING', for details.
*/

/*
 * tyrlite/entites.h
 * Modifications by Kevin Shanahan, 1999-2000
 */

#ifndef __TYRLITE_ENTITIES_H__
#define __TYRLITE_ENTITIES_H__

#define DEFAULTLIGHTLEVEL 300

typedef struct epair_s {
    struct epair_s *next;
    char   key[MAX_KEY];
    char   value[MAX_VALUE];
} epair_t;

typedef struct entity_s {
    char   classname[64];
	char	message[1024];
    vec3_t origin;
    float  angle;

    /* TYR - added fields */
    int      formula;
    float    atten;
    vec3_t   mangle;
    qboolean use_mangle;
    int      lightcolour[3];

    int      light;
    int      style;
    char     target[32];
    char     targetname[32];
    struct   epair_s    *epairs;
    struct   entity_s   *targetent;
} entity_t;

/* Explanation of values added to struct entity_s
 *
 * formula:
 *    takes a value 0-3 (default 0)
 *    0 - Standard lighting formula like original light
 *    1 - light fades as 1/x
 *    2 - light fades as 1/(x^2)
 *    3 - Light stays same brightness reguardless of distance
 *
 * atten:
 *    Takes a float as a value (default 1.0).
 *    This reflects how fast a light fades with distance.
 *    For example a value of 2 will fade twice as fast, and a value of 0.5
 *      will fade half as fast. (Just like arghlite)
 *
 *  mangle:
 *    If the entity is a light, then point the spotlight in this direction.
 *    If it is the worldspawn, then this is the sunlight mangle
 *
 *  lightcolour:
 *    Stores the RGB values to determine the light colour
 */

extern entity_t entities[MAX_MAP_ENTITIES];
extern int      num_entities;

extern int            numtexlights;
extern entity_t       texlights[MAX_MAP_FACES];

entity_t *FindEntityWithKeyPair (char *key, char *value);
char     *ValueForKey (entity_t *ent, char *key);
void     SetKeyValue (entity_t *ent, char *key, char *value);
float    FloatForKey (entity_t *ent, char *key);
void     GetVectorForKey (entity_t *ent, char *key, vec3_t vec);

void LoadEntities (void);
void WriteEntitiesToString (void);

#endif /* __TYRLITE_ENTITIES_H__ */