DNA_meta_types.h

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/*
 * $Id: DNA_meta_types.h 34941 2011-02-17 20:48:12Z jesterking $ 
 *
 * ***** 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 */
        int i1,j1,k1, i2,j2,k2;     /* corners of Bounding Box in lattice */

        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;                        // XXX... depreceated (old animation system)

        /* 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