tools/quake3/q3map2/convert_map.c

   1 /* -------------------------------------------------------------------------------
   2
   3 Copyright (C) 1999-2007 id Software, Inc. and contributors.
   4 For a list of contributors, see the accompanying CONTRIBUTORS file.
   5
   6 This file is part of GtkRadiant.
   7
   8 GtkRadiant is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 GtkRadiant is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GtkRadiant; if not, write to the Free Software
  20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21
  22 ----------------------------------------------------------------------------------
  23
  24 This code has been altered significantly from its original form, to support
  25 several games based on the Quake III Arena engine, in the form of "Q3Map2."
  26
  27 ------------------------------------------------------------------------------- */
  28
  29
  30
  31 /* marker */
  32 #define CONVERT_MAP_C
  33
  34
  35
  36 /* dependencies */
  37 #include "q3map2.h"
  38
  39
  40
  41 /*
  42 ConvertBrush()
  43 exports a map brush
  44 */
  45
  46 #define SNAP_FLOAT_TO_INT       4
  47 #define SNAP_INT_TO_FLOAT       (1.0 / SNAP_FLOAT_TO_INT)
  48
  49 typedef vec_t vec2_t[2];
  50
  51 static vec_t Det3x3(vec_t a00, vec_t a01, vec_t a02,
  52                     vec_t a10, vec_t a11, vec_t a12,
  53                     vec_t a20, vec_t a21, vec_t a22)
  54 {
  55         return
  56                 a00 * (a11 * a22 - a12 * a21)
  57         -       a01 * (a10 * a22 - a12 * a20)
  58         +       a02 * (a10 * a21 - a11 * a20);
  59 }
  60
  61 void GetBestSurfaceTriangleMatchForBrushside(side_t *buildSide, bspDrawVert_t *bestVert[3])
  62 {
  63         bspDrawSurface_t *s;
  64         int i;
  65         int t;
  66         vec_t best = 0;
  67         vec_t thisarea;
  68         vec3_t normdiff;
  69         vec3_t v1v0, v2v0, norm;
  70         bspDrawVert_t *vert[3];
  71         winding_t *polygon;
  72         plane_t *buildPlane = &mapplanes[buildSide->planenum];
  73         int matches = 0;
  74
  75         // first, start out with NULLs
  76         bestVert[0] = bestVert[1] = bestVert[2] = NULL;
  77
  78         // brute force through all surfaces
  79         for(s = bspDrawSurfaces; s != bspDrawSurfaces + numBSPDrawSurfaces; ++s)
  80         {
  81                 if(s->surfaceType != MST_PLANAR && s->surfaceType != MST_TRIANGLE_SOUP)
  82                         continue;
  83                 if(strcmp(buildSide->shaderInfo->shader, bspShaders[s->shaderNum].shader))
  84                         continue;
  85                 for(t = 0; t + 3 <= s->numIndexes; t += 3)
  86                 {
  87                         vert[0] = &bspDrawVerts[s->firstVert + bspDrawIndexes[s->firstIndex + t + 0]];
  88                         vert[1] = &bspDrawVerts[s->firstVert + bspDrawIndexes[s->firstIndex + t + 1]];
  89                         vert[2] = &bspDrawVerts[s->firstVert + bspDrawIndexes[s->firstIndex + t + 2]];
  90                         if(s->surfaceType == MST_PLANAR)
  91                         {
  92                                 VectorSubtract(vert[0]->normal, buildPlane->normal, normdiff); if(VectorLength(normdiff) >= normalEpsilon) continue;
  93                                 VectorSubtract(vert[1]->normal, buildPlane->normal, normdiff); if(VectorLength(normdiff) >= normalEpsilon) continue;
  94                                 VectorSubtract(vert[2]->normal, buildPlane->normal, normdiff); if(VectorLength(normdiff) >= normalEpsilon) continue;
  95                         }
  96                         else
  97                         {
  98                                 // this is more prone to roundoff errors, but with embedded
  99                                 // models, there is no better way
 100                                 VectorSubtract(vert[1]->xyz, vert[0]->xyz, v1v0);
 101                                 VectorSubtract(vert[2]->xyz, vert[0]->xyz, v2v0);
 102                                 CrossProduct(v2v0, v1v0, norm);
 103                                 VectorNormalize(norm, norm);
 104                                 VectorSubtract(norm, buildPlane->normal, normdiff); if(VectorLength(normdiff) >= normalEpsilon) continue;
 105                         }
 106                         if(abs(DotProduct(vert[0]->xyz, buildPlane->normal) - buildPlane->dist) >= distanceEpsilon) continue;
 107                         if(abs(DotProduct(vert[1]->xyz, buildPlane->normal) - buildPlane->dist) >= distanceEpsilon) continue;
 108                         if(abs(DotProduct(vert[2]->xyz, buildPlane->normal) - buildPlane->dist) >= distanceEpsilon) continue;
 109                         // Okay. Correct surface type, correct shader, correct plane. Let's start with the business...
 110                         polygon = CopyWinding(buildSide->winding);
 111                         for(i = 0; i < 3; ++i)
 112                         {
 113                                 // 0: 1, 2
 114                                 // 1: 2, 0
 115                                 // 2; 0, 1
 116                                 vec3_t *v1 = &vert[(i+1)%3]->xyz;
 117                                 vec3_t *v2 = &vert[(i+2)%3]->xyz;
 118                                 vec3_t triNormal;
 119                                 vec_t triDist;
 120                                 vec3_t sideDirection;
 121                                 // we now need to generate triNormal and triDist so that they represent the plane spanned by normal and (v2 - v1).
 122                                 VectorSubtract(*v2, *v1, sideDirection);
 123                                 CrossProduct(sideDirection, buildPlane->normal, triNormal);
 124                                 triDist = DotProduct(*v1, triNormal);
 125                                 ChopWindingInPlace(&polygon, triNormal, triDist, distanceEpsilon);
 126                                 if(!polygon)
 127                                         goto exwinding;
 128                         }
 129                         thisarea = WindingArea(polygon);
 130                         if(thisarea > 0)
 131                                 ++matches;
 132                         if(thisarea > best)
 133                         {
 134                                 best = thisarea;
 135                                 bestVert[0] = vert[0];
 136                                 bestVert[1] = vert[1];
 137                                 bestVert[2] = vert[2];
 138                         }
 139                         FreeWinding(polygon);
 140 exwinding:
 141                         ;
 142                 }
 143         }
 144         //if(strncmp(buildSide->shaderInfo->shader, "textures/common/", 16))
 145         //      fprintf(stderr, "brushside with %s: %d matches (%f area)\n", buildSide->shaderInfo->shader, matches, best);
 146 }
 147
 148 static void ConvertOriginBrush( FILE *f, int num, vec3_t origin )
 149 {
 150         char pattern[6][5][3] = {
 151                 { "+++", "+-+", "-++", " - ", "-  " },
 152                 { "+++", "-++", "++-", "+  ", "  +" },
 153                 { "+++", "++-", "+-+", " - ", "  +" },
 154                 { "---", "+--", "-+-", " - ", "+  " },
 155                 { "---", "--+", "+--", "-  ", "  +" },
 156                 { "---", "-+-", "--+", " + ", "  +" }
 157         };
 158         int i;
 159 #define S(a,b,c) (pattern[a][b][c] == '+' ? +1 : pattern[a][b][c] == '-' ? -1 : 0)
 160 #define FRAC(x) ((x) - floor(x))
 161
 162         /* start brush */
 163         fprintf( f, "\t// brush %d\n", num );
 164         fprintf( f, "\t{\n" );
 165         fprintf( f, "\tbrushDef\n" );
 166         fprintf( f, "\t{\n" );
 167         /* print brush side */
 168         /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 169
 170         for(i = 0; i < 6; ++i)
 171                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( ( %.8f %.8f %.8f ) ( %.8f %.8f %.8f ) ) %s %d 0 0\n",
 172                                 origin[0] + 8 * S(i,0,0), origin[1] + 8 * S(i,0,1), origin[2] + 8 * S(i,0,2),
 173                                 origin[0] + 8 * S(i,1,0), origin[1] + 8 * S(i,1,1), origin[2] + 8 * S(i,1,2),
 174                                 origin[0] + 8 * S(i,2,0), origin[1] + 8 * S(i,2,1), origin[2] + 8 * S(i,2,2),
 175                                 1/16.0, 0.0, FRAC((S(i,3,0) * origin[0] + S(i,3,1) * origin[1] + S(i,3,2) * origin[2]) / 16.0 + 0.5),
 176                                 0.0, 1/16.0, FRAC((S(i,4,0) * origin[0] + S(i,4,1) * origin[1] + S(i,4,2) * origin[2]) / 16.0 + 0.5),
 177                                 "common/origin",
 178                                 0
 179                            );
 180 #undef FRAC
 181 #undef S
 182
 183         /* end brush */
 184         fprintf( f, "\t}\n" );
 185         fprintf( f, "\t}\n\n" );
 186 }
 187
 188 static void ConvertBrush( FILE *f, int num, bspBrush_t *brush, vec3_t origin )
 189 {
 190         int                             i, j;
 191         bspBrushSide_t  *side;
 192         side_t                  *buildSide;
 193         bspShader_t             *shader;
 194         char                    *texture;
 195         bspPlane_t              *plane;
 196         plane_t         *buildPlane;
 197         vec3_t                  pts[ 3 ];
 198         bspDrawVert_t   *vert[3];
 199         int valid;
 200
 201
 202         /* start brush */
 203         fprintf( f, "\t// brush %d\n", num );
 204         fprintf( f, "\t{\n" );
 205         fprintf( f, "\tbrushDef\n" );
 206         fprintf( f, "\t{\n" );
 207
 208         /* clear out build brush */
 209         for( i = 0; i < buildBrush->numsides; i++ )
 210         {
 211                 buildSide = &buildBrush->sides[ i ];
 212                 if( buildSide->winding != NULL )
 213                 {
 214                         FreeWinding( buildSide->winding );
 215                         buildSide->winding = NULL;
 216                 }
 217         }
 218         buildBrush->numsides = 0;
 219
 220         /* iterate through bsp brush sides */
 221         for( i = 0; i < brush->numSides; i++ )
 222         {
 223                 /* get side */
 224                 side = &bspBrushSides[ brush->firstSide + i ];
 225
 226                 /* get shader */
 227                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 228                         continue;
 229                 shader = &bspShaders[ side->shaderNum ];
 230                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 231                         continue;
 232
 233                 /* get plane */
 234                 plane = &bspPlanes[ side->planeNum ];
 235
 236                 /* add build side */
 237                 buildSide = &buildBrush->sides[ buildBrush->numsides ];
 238                 buildBrush->numsides++;
 239
 240                 /* tag it */
 241                 buildSide->shaderInfo = ShaderInfoForShader( shader->shader );
 242                 buildSide->planenum = side->planeNum;
 243                 buildSide->winding = NULL;
 244         }
 245
 246         /* make brush windings */
 247         if( !CreateBrushWindings( buildBrush ) )
 248                 return;
 249
 250         /* iterate through build brush sides */
 251         for( i = 0; i < buildBrush->numsides; i++ )
 252         {
 253                 /* get build side */
 254                 buildSide = &buildBrush->sides[ i ];
 255
 256                 /* get plane */
 257                 buildPlane = &mapplanes[ buildSide->planenum ];
 258
 259                 /* dummy check */
 260                 if( buildSide->shaderInfo == NULL || buildSide->winding == NULL )
 261                         continue;
 262
 263                 // st-texcoords -> texMat block
 264                 // start out with dummy
 265                 VectorSet(buildSide->texMat[0], 1/32.0, 0, 0);
 266                 VectorSet(buildSide->texMat[1], 0, 1/32.0, 0);
 267
 268                 // find surface for this side (by brute force)
 269                 // surface format:
 270                 //   - meshverts point in pairs of three into verts
 271                 //   - (triangles)
 272                 //   - find the triangle that has most in common with our side
 273                 GetBestSurfaceTriangleMatchForBrushside(buildSide, vert);
 274                 valid = 0;
 275
 276                 if(vert[0] && vert[1] && vert[2])
 277                 {
 278                         int i;
 279                         vec3_t texX, texY;
 280                         vec3_t xy1I, xy1J, xy1K;
 281                         vec2_t stI, stJ, stK;
 282                         vec_t D, D0, D1, D2;
 283
 284                         ComputeAxisBase(buildPlane->normal, texX, texY);
 285
 286                         VectorSet(xy1I, DotProduct(vert[0]->xyz, texX), DotProduct(vert[0]->xyz, texY), 1);
 287                         VectorSet(xy1J, DotProduct(vert[1]->xyz, texX), DotProduct(vert[1]->xyz, texY), 1);
 288                         VectorSet(xy1K, DotProduct(vert[2]->xyz, texX), DotProduct(vert[2]->xyz, texY), 1);
 289                         stI[0] = vert[0]->st[0]; stI[1] = vert[0]->st[1];
 290                         stJ[0] = vert[1]->st[0]; stJ[1] = vert[1]->st[1];
 291                         stK[0] = vert[2]->st[0]; stK[1] = vert[2]->st[1];
 292
 293                         //   - solve linear equations:
 294                         //     - (x, y) := xyz . (texX, texY)
 295                         //     - st[i] = texMat[i][0]*x + texMat[i][1]*y + texMat[i][2]
 296                         //       (for three vertices)
 297                         D = Det3x3(
 298                                 xy1I[0], xy1I[1], 1,
 299                                 xy1J[0], xy1J[1], 1,
 300                                 xy1K[0], xy1K[1], 1
 301                         );
 302                         if(D != 0)
 303                         {
 304                                 for(i = 0; i < 2; ++i)
 305                                 {
 306                                         D0 = Det3x3(
 307                                                 stI[i], xy1I[1], 1,
 308                                                 stJ[i], xy1J[1], 1,
 309                                                 stK[i], xy1K[1], 1
 310                                         );
 311                                         D1 = Det3x3(
 312                                                 xy1I[0], stI[i], 1,
 313                                                 xy1J[0], stJ[i], 1,
 314                                                 xy1K[0], stK[i], 1
 315                                         );
 316                                         D2 = Det3x3(
 317                                                 xy1I[0], xy1I[1], stI[i],
 318                                                 xy1J[0], xy1J[1], stJ[i],
 319                                                 xy1K[0], xy1K[1], stK[i]
 320                                         );
 321                                         VectorSet(buildSide->texMat[i], D0 / D, D1 / D, D2 / D);
 322                                         valid = 1;
 323                                 }
 324                         }
 325                         else
 326                                 fprintf(stderr, "degenerate triangle found when solving texMat equations for\n(%f %f %f) (%f %f %f) (%f %f %f)\n( %f %f %f )\n( %f %f %f ) -> ( %f %f )\n( %f %f %f ) -> ( %f %f )\n( %f %f %f ) -> ( %f %f )\n",
 327                                         buildPlane->normal[0], buildPlane->normal[1], buildPlane->normal[2],
 328                                         vert[0]->normal[0], vert[0]->normal[1], vert[0]->normal[2],
 329                                         texX[0], texX[1], texX[2], texY[0], texY[1], texY[2],
 330                                         vert[0]->xyz[0], vert[0]->xyz[1], vert[0]->xyz[2], xy1I[0], xy1I[1],
 331                                         vert[1]->xyz[0], vert[1]->xyz[1], vert[1]->xyz[2], xy1J[0], xy1J[1],
 332                                         vert[2]->xyz[0], vert[2]->xyz[1], vert[2]->xyz[2], xy1K[0], xy1K[1]
 333                                         );
 334                 }
 335                 else
 336                         if(strncmp(buildSide->shaderInfo->shader, "textures/common/", 16))
 337                                 fprintf(stderr, "no matching triangle for brushside using %s (hopefully nobody can see this side anyway)\n", buildSide->shaderInfo->shader);
 338
 339                 /* get texture name */
 340                 if( !Q_strncasecmp( buildSide->shaderInfo->shader, "textures/", 9 ) )
 341                         texture = buildSide->shaderInfo->shader + 9;
 342                 else
 343                         texture = buildSide->shaderInfo->shader;
 344
 345                 /* get plane points and offset by origin */
 346                 for( j = 0; j < 3; j++ )
 347                 {
 348                         VectorAdd( buildSide->winding->p[ j ], origin, pts[ j ] );
 349                         //%     pts[ j ][ 0 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 0 ] * SNAP_FLOAT_TO_INT + 0.5f );
 350                         //%     pts[ j ][ 1 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 1 ] * SNAP_FLOAT_TO_INT + 0.5f );
 351                         //%     pts[ j ][ 2 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 2 ] * SNAP_FLOAT_TO_INT + 0.5f );
 352                 }
 353
 354                 /* print brush side */
 355                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 356                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( ( %.8f %.8f %.8f ) ( %.8f %.8f %.8f ) ) %s %d 0 0\n",
 357                         pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 358                         pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 359                         pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 360                         buildSide->texMat[0][0], buildSide->texMat[0][1], buildSide->texMat[0][2],
 361                         buildSide->texMat[1][0], buildSide->texMat[1][1], buildSide->texMat[1][2],
 362                         texture,
 363                         // DEBUG: valid ? 0 : C_DETAIL
 364                         0
 365                         );
 366                 // TODO write brush primitives format here
 367         }
 368
 369         /* end brush */
 370         fprintf( f, "\t}\n" );
 371         fprintf( f, "\t}\n\n" );
 372 }
 373
 374 #if 0
 375         /* iterate through the brush sides (ignore the first 6 bevel planes) */
 376         for( i = 0; i < brush->numSides; i++ )
 377         {
 378                 /* get side */
 379                 side = &bspBrushSides[ brush->firstSide + i ];
 380
 381                 /* get shader */
 382                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 383                         continue;
 384                 shader = &bspShaders[ side->shaderNum ];
 385                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 386                         continue;
 387
 388                 /* get texture name */
 389                 if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 390                         texture = shader->shader + 9;
 391                 else
 392                         texture = shader->shader;
 393
 394                 /* get plane */
 395                 plane = &bspPlanes[ side->planeNum ];
 396
 397                 /* make plane points */
 398                 {
 399                         vec3_t  vecs[ 2 ];
 400
 401
 402                         MakeNormalVectors( plane->normal, vecs[ 0 ], vecs[ 1 ] );
 403                         VectorMA( vec3_origin, plane->dist, plane->normal, pts[ 0 ] );
 404                         VectorMA( pts[ 0 ], 256.0f, vecs[ 0 ], pts[ 1 ] );
 405                         VectorMA( pts[ 0 ], 256.0f, vecs[ 1 ], pts[ 2 ] );
 406                 }
 407
 408                 /* offset by origin */
 409                 for( j = 0; j < 3; j++ )
 410                         VectorAdd( pts[ j ], origin, pts[ j ] );
 411
 412                 /* print brush side */
 413                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 414                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) %s 0 0 0 0.5 0.5 0 0 0\n",
 415                         pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 416                         pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 417                         pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 418                         texture );
 419         }
 420 #endif
 421
 422
 423
 424 /*
 425 ConvertPatch()
 426 converts a bsp patch to a map patch
 427
 428         {
 429                 patchDef2
 430                 {
 431                         base_wall/concrete
 432                         ( 9 3 0 0 0 )
 433                         (
 434                                 ( ( 168 168 -192 0 2 ) ( 168 168 -64 0 1 ) ( 168 168 64 0 0 ) ... )
 435                                 ...
 436                         )
 437                 }
 438         }
 439
 440 */
 441
 442 static void ConvertPatch( FILE *f, int num, bspDrawSurface_t *ds, vec3_t origin )
 443 {
 444         int                             x, y;
 445         bspShader_t             *shader;
 446         char                    *texture;
 447         bspDrawVert_t   *dv;
 448         vec3_t                  xyz;
 449
 450
 451         /* only patches */
 452         if( ds->surfaceType != MST_PATCH )
 453                 return;
 454
 455         /* get shader */
 456         if( ds->shaderNum < 0 || ds->shaderNum >= numBSPShaders )
 457                 return;
 458         shader = &bspShaders[ ds->shaderNum ];
 459
 460         /* get texture name */
 461         if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 462                 texture = shader->shader + 9;
 463         else
 464                 texture = shader->shader;
 465
 466         /* start patch */
 467         fprintf( f, "\t// patch %d\n", num );
 468         fprintf( f, "\t{\n" );
 469         fprintf( f, "\t\tpatchDef2\n" );
 470         fprintf( f, "\t\t{\n" );
 471         fprintf( f, "\t\t\t%s\n", texture );
 472         fprintf( f, "\t\t\t( %d %d 0 0 0 )\n", ds->patchWidth, ds->patchHeight );
 473         fprintf( f, "\t\t\t(\n" );
 474
 475         /* iterate through the verts */
 476         for( x = 0; x < ds->patchWidth; x++ )
 477         {
 478                 /* start row */
 479                 fprintf( f, "\t\t\t\t(" );
 480
 481                 /* iterate through the row */
 482                 for( y = 0; y < ds->patchHeight; y++ )
 483                 {
 484                         /* get vert */
 485                         dv = &bspDrawVerts[ ds->firstVert + (y * ds->patchWidth) + x ];
 486
 487                         /* offset it */
 488                         VectorAdd( origin, dv->xyz, xyz );
 489
 490                         /* print vertex */
 491                         fprintf( f, " ( %f %f %f %f %f )", xyz[ 0 ], xyz[ 1 ], xyz[ 2 ], dv->st[ 0 ], dv->st[ 1 ] );
 492                 }
 493
 494                 /* end row */
 495                 fprintf( f, " )\n" );
 496         }
 497
 498         /* end patch */
 499         fprintf( f, "\t\t\t)\n" );
 500         fprintf( f, "\t\t}\n" );
 501         fprintf( f, "\t}\n\n" );
 502 }
 503
 504
 505
 506 /*
 507 ConvertModel()
 508 exports a bsp model to a map file
 509 */
 510
 511 static void ConvertModel( FILE *f, bspModel_t *model, int modelNum, vec3_t origin )
 512 {
 513         int                                     i, num;
 514         bspBrush_t                      *brush;
 515         bspDrawSurface_t        *ds;
 516
 517
 518         /* convert bsp planes to map planes */
 519         nummapplanes = numBSPPlanes;
 520         AUTOEXPAND_BY_REALLOC(mapplanes, nummapplanes, allocatedmapplanes, 1024);
 521         for( i = 0; i < numBSPPlanes; i++ )
 522         {
 523                 VectorCopy( bspPlanes[ i ].normal, mapplanes[ i ].normal );
 524                 mapplanes[ i ].dist = bspPlanes[ i ].dist;
 525                 mapplanes[ i ].type = PlaneTypeForNormal( mapplanes[ i ].normal );
 526                 mapplanes[ i ].hash_chain = 0;
 527         }
 528
 529         /* allocate a build brush */
 530         buildBrush = AllocBrush( 512 );
 531         buildBrush->entityNum = 0;
 532         buildBrush->original = buildBrush;
 533
 534         if(origin[0] != 0 || origin[1] != 0 || origin[2] != 0)
 535                 ConvertOriginBrush(f, -1, origin);
 536
 537         /* go through each brush in the model */
 538         for( i = 0; i < model->numBSPBrushes; i++ )
 539         {
 540                 num = i + model->firstBSPBrush;
 541                 brush = &bspBrushes[ num ];
 542                 ConvertBrush( f, num, brush, origin );
 543         }
 544
 545         /* free the build brush */
 546         free( buildBrush );
 547
 548         /* go through each drawsurf in the model */
 549         for( i = 0; i < model->numBSPSurfaces; i++ )
 550         {
 551                 num = i + model->firstBSPSurface;
 552                 ds = &bspDrawSurfaces[ num ];
 553
 554                 /* we only love patches */
 555                 if( ds->surfaceType == MST_PATCH )
 556                         ConvertPatch( f, num, ds, origin );
 557         }
 558 }
 559
 560
 561
 562 /*
 563 ConvertEPairs()
 564 exports entity key/value pairs to a map file
 565 */
 566
 567 static void ConvertEPairs( FILE *f, entity_t *e, qboolean skip_origin )
 568 {
 569         epair_t *ep;
 570
 571
 572         /* walk epairs */
 573         for( ep = e->epairs; ep != NULL; ep = ep->next )
 574         {
 575                 /* ignore empty keys/values */
 576                 if( ep->key[ 0 ] == '\0' || ep->value[ 0 ] == '\0' )
 577                         continue;
 578
 579                 /* ignore model keys with * prefixed values */
 580                 if( !Q_stricmp( ep->key, "model" ) && ep->value[ 0 ] == '*' )
 581                         continue;
 582
 583                 /* ignore origin keys if skip_origin is set */
 584                 if( skip_origin && !Q_stricmp( ep->key, "origin" ) )
 585                         continue;
 586
 587                 /* emit the epair */
 588                 fprintf( f, "\t\"%s\" \"%s\"\n", ep->key, ep->value );
 589         }
 590 }
 591
 592
 593
 594 /*
 595 ConvertBSPToMap()
 596 exports an quake map file from the bsp
 597 */
 598
 599 int ConvertBSPToMap( char *bspName )
 600 {
 601         int                             i, modelNum;
 602         FILE                    *f;
 603         bspModel_t              *model;
 604         entity_t                *e;
 605         vec3_t                  origin;
 606         const char              *value;
 607         char                    name[ 1024 ], base[ 1024 ];
 608
 609
 610         /* note it */
 611         Sys_Printf( "--- Convert BSP to MAP ---\n" );
 612
 613         /* create the bsp filename from the bsp name */
 614         strcpy( name, bspName );
 615         StripExtension( name );
 616         strcat( name, "_converted.map" );
 617         Sys_Printf( "writing %s\n", name );
 618
 619         ExtractFileBase( bspName, base );
 620         strcat( base, ".bsp" );
 621
 622         /* open it */
 623         f = fopen( name, "wb" );
 624         if( f == NULL )
 625                 Error( "Open failed on %s\n", name );
 626
 627         /* print header */
 628         fprintf( f, "// Generated by Q3Map2 (ydnar) -convert -format map\n" );
 629
 630         /* walk entity list */
 631         for( i = 0; i < numEntities; i++ )
 632         {
 633                 /* get entity */
 634                 e = &entities[ i ];
 635
 636                 /* start entity */
 637                 fprintf( f, "// entity %d\n", i );
 638                 fprintf( f, "{\n" );
 639
 640                 /* get model num */
 641                 if( i == 0 )
 642                         modelNum = 0;
 643                 else
 644                 {
 645                         value = ValueForKey( e, "model" );
 646                         if( value[ 0 ] == '*' )
 647                                 modelNum = atoi( value + 1 );
 648                         else
 649                                 modelNum = -1;
 650                 }
 651
 652                 /* export keys */
 653                 ConvertEPairs( f, e, modelNum >= 0 );
 654                 fprintf( f, "\n" );
 655
 656                 /* only handle bsp models */
 657                 if( modelNum >= 0 )
 658                 {
 659                         /* get model */
 660                         model = &bspModels[ modelNum ];
 661
 662                         /* get entity origin */
 663                         value = ValueForKey( e, "origin" );
 664                         if( value[ 0 ] == '\0' )
 665                                 VectorClear( origin );
 666                         else
 667                                 GetVectorForKey( e, "origin", origin );
 668
 669                         /* convert model */
 670                         ConvertModel( f, model, modelNum, origin );
 671                 }
 672
 673                 /* end entity */
 674                 fprintf( f, "}\n\n" );
 675         }
 676
 677         /* close the file and return */
 678         fclose( f );
 679
 680         /* return to sender */
 681         return 0;
 682 }