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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) Blender Foundation.
* All rights reserved.
*/
#ifndef __BKE_SOFTBODY_H__
#define __BKE_SOFTBODY_H__
/** \file
* \ingroup bke
*/
#ifdef __cplusplus
extern "C" {
#endif
struct Depsgraph;
struct Object;
struct Scene;
struct SoftBody;
typedef struct BodyPoint {
float origS[3], origE[3], origT[3], pos[3], vec[3], force[3];
float goal;
float prevpos[3], prevvec[3], prevdx[3], prevdv[3]; /* used for Heun integration */
float impdv[3], impdx[3];
int nofsprings;
int *springs;
float choke, choke2, frozen;
float colball;
short loc_flag; // reserved by locale module specific states
// char octantflag;
float mass;
float springweight;
} BodyPoint;
/* allocates and initializes general main data */
extern struct SoftBody *sbNew(struct Scene *scene);
/* frees internal data and softbody itself */
extern void sbFree(struct Object *ob);
/* frees simulation data to reset simulation */
extern void sbFreeSimulation(struct SoftBody *sb);
/* do one simul step, reading and writing vertex locs from given array */
extern void sbObjectStep(struct Depsgraph *depsgraph,
struct Scene *scene,
struct Object *ob,
float framnr,
float (*vertexCos)[3],
int numVerts);
/* makes totally fresh start situation, resets time */
extern void sbObjectToSoftbody(struct Object *ob);
/* links the softbody module to a 'test for Interrupt' function */
/* pass NULL to unlink again */
extern void sbSetInterruptCallBack(int (*f)(void));
extern void SB_estimate_transform(Object *ob, float lloc[3], float lrot[3][3], float lscale[3][3]);
#ifdef __cplusplus
}
#endif
#endif
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