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/**
* blenlib/BKE_effect.h (mar-2001 nzc)
*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef BKE_EFFECT_H
#define BKE_EFFECT_H
#include "DNA_object_types.h"
struct Object;
struct Scene;
struct Effect;
struct ListBase;
struct Particle;
struct Group;
struct RNG;
struct PartDeflect *object_add_collision_fields(void);
typedef struct pEffectorCache {
struct pEffectorCache *next, *prev;
Object *ob;
/* precalculated variables */
float oldloc[3], oldspeed[3];
float scale, time_scale;
float guide_dist;
Object obcopy; /* for restoring transformation data */
} pEffectorCache;
void free_effect(struct Effect *eff);
void free_effects(struct ListBase *lb);
struct Effect *copy_effect(struct Effect *eff);
void copy_effects(struct ListBase *lbn, struct ListBase *lb);
void deselectall_eff(struct Object *ob);
/* particle deflector */
#define PE_WIND_AS_SPEED 0x00000001
struct PartEff *give_parteff(struct Object *ob);
struct ListBase *pdInitEffectors(struct Scene *scene, struct Object *obsrc, struct Group *group);
void pdEndEffectors(struct ListBase *lb);
void pdDoEffectors(struct Scene *scene, struct ListBase *lb, float *opco, float *force,
float *speed, float cur_time, float loc_time, unsigned int flags);
/* required for particle_system.c */
void do_physical_effector(struct Scene *scene, struct Object *ob, float *opco, short type, float force_val, float distance,
float falloff, float size, float damp, float *eff_velocity, float *vec_to_part,
float *velocity, float *field, int planar, struct RNG *rng, float noise_factor,
float charge, float pa_size);
float effector_falloff(struct PartDeflect *pd, float *eff_velocity, float *vec_to_part);
#endif
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