DNA_meta_types.h

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/*
 * ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 DNA_META_TYPES_H
#define DNA_META_TYPES_H

#include "DNA_listBase.h"
#include "DNA_ID.h"

struct BoundBox;
struct AnimData;
struct Ipo;
struct Material;


typedef struct MetaElem {
    struct MetaElem *next, *prev;

    struct BoundBox *bb;        /* Bound Box of MetaElem */

    short type, flag, selcol1, selcol2;
    float x, y, z;          /* Position of center of MetaElem */
    float quat[4];          /* Rotation of MetaElem (MUST be kept normalized) */
    float expx; /* dimension parameters, used for some types like cubes */
    float expy;
    float expz;
    float rad;              /* radius of the meta element */
    float rad2;             /* temp field, used only while processing */
    float s;                /* stiffness, how much of the element to fill */
    float len;              /* old, only used for backwards compat. use dimensions now */
    
    float *mat, *imat;      /* matrix and inverted matrix */
    
} MetaElem;

typedef struct MetaBall {
    ID id;
    struct AnimData *adt;
    
    struct BoundBox *bb;

    ListBase elems;
    ListBase disp;
    ListBase *editelems;        /* not saved in files, note we use pointer for editmode check */
    struct Ipo *ipo  DNA_DEPRECATED;  /* old animation system, deprecated for 2.5 */

    /* material of the mother ball will define the material used of all others */
    struct Material **mat; 

    char flag, flag2;           /* flag is enum for updates, flag2 is bitflags for settings */
    short totcol;
    short texflag, pad; /* used to store MB_AUTOSPACE */
    
    /* texture space, copied as one block in editobject.c */
    float loc[3];
    float size[3];
    float rot[3];
    
    float wiresize, rendersize; /* display and render res */
    
    /* bias elements to have an offset volume.
    mother ball changes will effect other objects thresholds,
    but these may also have their own thresh as an offset */
    float thresh;

    /* used in editmode */
    /*ListBase edit_elems;*/
    MetaElem *lastelem; 
} MetaBall;

/* **************** METABALL ********************* */

/* texflag */
#define MB_AUTOSPACE    1

/* mb->flag */
#define MB_UPDATE_ALWAYS    0
#define MB_UPDATE_HALFRES   1
#define MB_UPDATE_FAST      2
#define MB_UPDATE_NEVER     3

/* mb->flag2 */
#define MB_DS_EXPAND    (1<<0)


/* ml->type */
#define MB_BALL     0
#define MB_TUBEX    1 /* depercated */
#define MB_TUBEY    2 /* depercated */
#define MB_TUBEZ    3 /* depercated */
#define MB_TUBE     4
#define MB_PLANE    5
#define MB_ELIPSOID 6
#define MB_CUBE     7

/* ml->flag */
#define MB_NEGATIVE 2
#define MB_HIDE     8
#define MB_SCALE_RAD    16

#endif