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 ConvertBrush( FILE *f, int num, bspBrush_t *brush, vec3_t origin )
 149 {
 150         int                             i, j;
 151         bspBrushSide_t  *side;
 152         side_t                  *buildSide;
 153         bspShader_t             *shader;
 154         char                    *texture;
 155         bspPlane_t              *plane;
 156         plane_t         *buildPlane;
 157         vec3_t                  pts[ 3 ];
 158         bspDrawVert_t   *vert[3];
 159         int valid;
 160
 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
 168         /* clear out build brush */
 169         for( i = 0; i < buildBrush->numsides; i++ )
 170         {
 171                 buildSide = &buildBrush->sides[ i ];
 172                 if( buildSide->winding != NULL )
 173                 {
 174                         FreeWinding( buildSide->winding );
 175                         buildSide->winding = NULL;
 176                 }
 177         }
 178         buildBrush->numsides = 0;
 179
 180         /* iterate through bsp brush sides */
 181         for( i = 0; i < brush->numSides; i++ )
 182         {
 183                 /* get side */
 184                 side = &bspBrushSides[ brush->firstSide + i ];
 185
 186                 /* get shader */
 187                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 188                         continue;
 189                 shader = &bspShaders[ side->shaderNum ];
 190                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 191                         continue;
 192
 193                 /* get plane */
 194                 plane = &bspPlanes[ side->planeNum ];
 195
 196                 /* add build side */
 197                 buildSide = &buildBrush->sides[ buildBrush->numsides ];
 198                 buildBrush->numsides++;
 199
 200                 /* tag it */
 201                 buildSide->shaderInfo = ShaderInfoForShader( shader->shader );
 202                 buildSide->planenum = side->planeNum;
 203                 buildSide->winding = NULL;
 204         }
 205
 206         /* make brush windings */
 207         if( !CreateBrushWindings( buildBrush ) )
 208                 return;
 209
 210         /* iterate through build brush sides */
 211         for( i = 0; i < buildBrush->numsides; i++ )
 212         {
 213                 /* get build side */
 214                 buildSide = &buildBrush->sides[ i ];
 215
 216                 /* get plane */
 217                 buildPlane = &mapplanes[ buildSide->planenum ];
 218
 219                 /* dummy check */
 220                 if( buildSide->shaderInfo == NULL || buildSide->winding == NULL )
 221                         continue;
 222
 223                 // st-texcoords -> texMat block
 224                 // start out with dummy
 225                 VectorSet(buildSide->texMat[0], 1/32.0, 0, 0);
 226                 VectorSet(buildSide->texMat[1], 0, 1/32.0, 0);
 227
 228                 // find surface for this side (by brute force)
 229                 // surface format:
 230                 //   - meshverts point in pairs of three into verts
 231                 //   - (triangles)
 232                 //   - find the triangle that has most in common with our side
 233                 GetBestSurfaceTriangleMatchForBrushside(buildSide, vert);
 234                 valid = 0;
 235
 236                 if(vert[0] && vert[1] && vert[2])
 237                 {
 238                         int i;
 239                         vec3_t texX, texY;
 240                         vec3_t xy1I, xy1J, xy1K;
 241                         vec2_t stI, stJ, stK;
 242                         vec_t D, D0, D1, D2;
 243
 244                         ComputeAxisBase(buildPlane->normal, texX, texY);
 245
 246                         VectorSet(xy1I, DotProduct(vert[0]->xyz, texX), DotProduct(vert[0]->xyz, texY), 1);
 247                         VectorSet(xy1J, DotProduct(vert[1]->xyz, texX), DotProduct(vert[1]->xyz, texY), 1);
 248                         VectorSet(xy1K, DotProduct(vert[2]->xyz, texX), DotProduct(vert[2]->xyz, texY), 1);
 249                         stI[0] = vert[0]->st[0]; stI[1] = vert[0]->st[1];
 250                         stJ[0] = vert[1]->st[0]; stJ[1] = vert[1]->st[1];
 251                         stK[0] = vert[2]->st[0]; stK[1] = vert[2]->st[1];
 252
 253                         //   - solve linear equations:
 254                         //     - (x, y) := xyz . (texX, texY)
 255                         //     - st[i] = texMat[i][0]*x + texMat[i][1]*y + texMat[i][2]
 256                         //       (for three vertices)
 257                         D = Det3x3(
 258                                 xy1I[0], xy1I[1], 1,
 259                                 xy1J[0], xy1J[1], 1,
 260                                 xy1K[0], xy1K[1], 1
 261                         );
 262                         if(D != 0)
 263                         {
 264                                 for(i = 0; i < 2; ++i)
 265                                 {
 266                                         D0 = Det3x3(
 267                                                 stI[i], xy1I[1], 1,
 268                                                 stJ[i], xy1J[1], 1,
 269                                                 stK[i], xy1K[1], 1
 270                                         );
 271                                         D1 = Det3x3(
 272                                                 xy1I[0], stI[i], 1,
 273                                                 xy1J[0], stJ[i], 1,
 274                                                 xy1K[0], stK[i], 1
 275                                         );
 276                                         D2 = Det3x3(
 277                                                 xy1I[0], xy1I[1], stI[i],
 278                                                 xy1J[0], xy1J[1], stJ[i],
 279                                                 xy1K[0], xy1K[1], stK[i]
 280                                         );
 281                                         VectorSet(buildSide->texMat[i], D0 / D, D1 / D, D2 / D);
 282                                         valid = 1;
 283                                 }
 284                         }
 285                         else
 286                                 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",
 287                                         buildPlane->normal[0], buildPlane->normal[1], buildPlane->normal[2],
 288                                         vert[0]->normal[0], vert[0]->normal[1], vert[0]->normal[2],
 289                                         texX[0], texX[1], texX[2], texY[0], texY[1], texY[2],
 290                                         vert[0]->xyz[0], vert[0]->xyz[1], vert[0]->xyz[2], xy1I[0], xy1I[1],
 291                                         vert[1]->xyz[0], vert[1]->xyz[1], vert[1]->xyz[2], xy1J[0], xy1J[1],
 292                                         vert[2]->xyz[0], vert[2]->xyz[1], vert[2]->xyz[2], xy1K[0], xy1K[1]
 293                                         );
 294                 }
 295                 else
 296                         if(strncmp(buildSide->shaderInfo->shader, "textures/common/", 16))
 297                                 fprintf(stderr, "no matching triangle for brushside using %s (hopefully nobody can see this side anyway)\n", buildSide->shaderInfo->shader);
 298
 299                 /* get texture name */
 300                 if( !Q_strncasecmp( buildSide->shaderInfo->shader, "textures/", 9 ) )
 301                         texture = buildSide->shaderInfo->shader + 9;
 302                 else
 303                         texture = buildSide->shaderInfo->shader;
 304
 305                 /* get plane points and offset by origin */
 306                 for( j = 0; j < 3; j++ )
 307                 {
 308                         VectorAdd( buildSide->winding->p[ j ], origin, pts[ j ] );
 309                         //%     pts[ j ][ 0 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 0 ] * SNAP_FLOAT_TO_INT + 0.5f );
 310                         //%     pts[ j ][ 1 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 1 ] * SNAP_FLOAT_TO_INT + 0.5f );
 311                         //%     pts[ j ][ 2 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 2 ] * SNAP_FLOAT_TO_INT + 0.5f );
 312                 }
 313
 314                 /* print brush side */
 315                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 316                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( ( %.8f %.8f %.8f ) ( %.8f %.8f %.8f ) ) %s %d 0 0\n",
 317                         pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 318                         pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 319                         pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 320                         buildSide->texMat[0][0], buildSide->texMat[0][1], buildSide->texMat[0][2],
 321                         buildSide->texMat[1][0], buildSide->texMat[1][1], buildSide->texMat[1][2],
 322                         texture,
 323                         // DEBUG: valid ? 0 : C_DETAIL
 324                         0
 325                         );
 326                 // TODO write brush primitives format here
 327         }
 328
 329         /* end brush */
 330         fprintf( f, "\t}\n" );
 331         fprintf( f, "\t}\n\n" );
 332 }
 333
 334 #if 0
 335         /* iterate through the brush sides (ignore the first 6 bevel planes) */
 336         for( i = 0; i < brush->numSides; i++ )
 337         {
 338                 /* get side */
 339                 side = &bspBrushSides[ brush->firstSide + i ];
 340
 341                 /* get shader */
 342                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 343                         continue;
 344                 shader = &bspShaders[ side->shaderNum ];
 345                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 346                         continue;
 347
 348                 /* get texture name */
 349                 if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 350                         texture = shader->shader + 9;
 351                 else
 352                         texture = shader->shader;
 353
 354                 /* get plane */
 355                 plane = &bspPlanes[ side->planeNum ];
 356
 357                 /* make plane points */
 358                 {
 359                         vec3_t  vecs[ 2 ];
 360
 361
 362                         MakeNormalVectors( plane->normal, vecs[ 0 ], vecs[ 1 ] );
 363                         VectorMA( vec3_origin, plane->dist, plane->normal, pts[ 0 ] );
 364                         VectorMA( pts[ 0 ], 256.0f, vecs[ 0 ], pts[ 1 ] );
 365                         VectorMA( pts[ 0 ], 256.0f, vecs[ 1 ], pts[ 2 ] );
 366                 }
 367
 368                 /* offset by origin */
 369                 for( j = 0; j < 3; j++ )
 370                         VectorAdd( pts[ j ], origin, pts[ j ] );
 371
 372                 /* print brush side */
 373                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 374                 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",
 375                         pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 376                         pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 377                         pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 378                         texture );
 379         }
 380 #endif
 381
 382
 383
 384 /*
 385 ConvertPatch()
 386 converts a bsp patch to a map patch
 387
 388         {
 389                 patchDef2
 390                 {
 391                         base_wall/concrete
 392                         ( 9 3 0 0 0 )
 393                         (
 394                                 ( ( 168 168 -192 0 2 ) ( 168 168 -64 0 1 ) ( 168 168 64 0 0 ) ... )
 395                                 ...
 396                         )
 397                 }
 398         }
 399
 400 */
 401
 402 static void ConvertPatch( FILE *f, int num, bspDrawSurface_t *ds, vec3_t origin )
 403 {
 404         int                             x, y;
 405         bspShader_t             *shader;
 406         char                    *texture;
 407         bspDrawVert_t   *dv;
 408         vec3_t                  xyz;
 409
 410
 411         /* only patches */
 412         if( ds->surfaceType != MST_PATCH )
 413                 return;
 414
 415         /* get shader */
 416         if( ds->shaderNum < 0 || ds->shaderNum >= numBSPShaders )
 417                 return;
 418         shader = &bspShaders[ ds->shaderNum ];
 419
 420         /* get texture name */
 421         if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 422                 texture = shader->shader + 9;
 423         else
 424                 texture = shader->shader;
 425
 426         /* start patch */
 427         fprintf( f, "\t// patch %d\n", num );
 428         fprintf( f, "\t{\n" );
 429         fprintf( f, "\t\tpatchDef2\n" );
 430         fprintf( f, "\t\t{\n" );
 431         fprintf( f, "\t\t\t%s\n", texture );
 432         fprintf( f, "\t\t\t( %d %d 0 0 0 )\n", ds->patchWidth, ds->patchHeight );
 433         fprintf( f, "\t\t\t(\n" );
 434
 435         /* iterate through the verts */
 436         for( x = 0; x < ds->patchWidth; x++ )
 437         {
 438                 /* start row */
 439                 fprintf( f, "\t\t\t\t(" );
 440
 441                 /* iterate through the row */
 442                 for( y = 0; y < ds->patchHeight; y++ )
 443                 {
 444                         /* get vert */
 445                         dv = &bspDrawVerts[ ds->firstVert + (y * ds->patchWidth) + x ];
 446
 447                         /* offset it */
 448                         VectorAdd( origin, dv->xyz, xyz );
 449
 450                         /* print vertex */
 451                         fprintf( f, " ( %f %f %f %f %f )", xyz[ 0 ], xyz[ 1 ], xyz[ 2 ], dv->st[ 0 ], dv->st[ 1 ] );
 452                 }
 453
 454                 /* end row */
 455                 fprintf( f, " )\n" );
 456         }
 457
 458         /* end patch */
 459         fprintf( f, "\t\t\t)\n" );
 460         fprintf( f, "\t\t}\n" );
 461         fprintf( f, "\t}\n\n" );
 462 }
 463
 464
 465
 466 /*
 467 ConvertModel()
 468 exports a bsp model to a map file
 469 */
 470
 471 static void ConvertModel( FILE *f, bspModel_t *model, int modelNum, vec3_t origin )
 472 {
 473         int                                     i, num;
 474         bspBrush_t                      *brush;
 475         bspDrawSurface_t        *ds;
 476
 477
 478         /* convert bsp planes to map planes */
 479         nummapplanes = numBSPPlanes;
 480         for( i = 0; i < numBSPPlanes; i++ )
 481         {
 482                 VectorCopy( bspPlanes[ i ].normal, mapplanes[ i ].normal );
 483                 mapplanes[ i ].dist = bspPlanes[ i ].dist;
 484                 mapplanes[ i ].type = PlaneTypeForNormal( mapplanes[ i ].normal );
 485                 mapplanes[ i ].hash_chain = NULL;
 486         }
 487
 488         /* allocate a build brush */
 489         buildBrush = AllocBrush( 512 );
 490         buildBrush->entityNum = 0;
 491         buildBrush->original = buildBrush;
 492
 493         /* go through each brush in the model */
 494         for( i = 0; i < model->numBSPBrushes; i++ )
 495         {
 496                 num = i + model->firstBSPBrush;
 497                 brush = &bspBrushes[ num ];
 498                 ConvertBrush( f, num, brush, origin );
 499         }
 500
 501         /* free the build brush */
 502         free( buildBrush );
 503
 504         /* go through each drawsurf in the model */
 505         for( i = 0; i < model->numBSPSurfaces; i++ )
 506         {
 507                 num = i + model->firstBSPSurface;
 508                 ds = &bspDrawSurfaces[ num ];
 509
 510                 /* we only love patches */
 511                 if( ds->surfaceType == MST_PATCH )
 512                         ConvertPatch( f, num, ds, origin );
 513         }
 514 }
 515
 516
 517
 518 /*
 519 ConvertEPairs()
 520 exports entity key/value pairs to a map file
 521 */
 522
 523 static void ConvertEPairs( FILE *f, entity_t *e )
 524 {
 525         epair_t *ep;
 526
 527
 528         /* walk epairs */
 529         for( ep = e->epairs; ep != NULL; ep = ep->next )
 530         {
 531                 /* ignore empty keys/values */
 532                 if( ep->key[ 0 ] == '\0' || ep->value[ 0 ] == '\0' )
 533                         continue;
 534
 535                 /* ignore model keys with * prefixed values */
 536                 if( !Q_stricmp( ep->key, "model" ) && ep->value[ 0 ] == '*' )
 537                         continue;
 538
 539                 /* emit the epair */
 540                 fprintf( f, "\t\"%s\" \"%s\"\n", ep->key, ep->value );
 541         }
 542 }
 543
 544
 545
 546 /*
 547 ConvertBSPToMap()
 548 exports an quake map file from the bsp
 549 */
 550
 551 int ConvertBSPToMap( char *bspName )
 552 {
 553         int                             i, modelNum;
 554         FILE                    *f;
 555         bspModel_t              *model;
 556         entity_t                *e;
 557         vec3_t                  origin;
 558         const char              *value;
 559         char                    name[ 1024 ], base[ 1024 ];
 560
 561
 562         /* note it */
 563         Sys_Printf( "--- Convert BSP to MAP ---\n" );
 564
 565         /* create the bsp filename from the bsp name */
 566         strcpy( name, bspName );
 567         StripExtension( name );
 568         strcat( name, "_converted.map" );
 569         Sys_Printf( "writing %s\n", name );
 570
 571         ExtractFileBase( bspName, base );
 572         strcat( base, ".bsp" );
 573
 574         /* open it */
 575         f = fopen( name, "wb" );
 576         if( f == NULL )
 577                 Error( "Open failed on %s\n", name );
 578
 579         /* print header */
 580         fprintf( f, "// Generated by Q3Map2 (ydnar) -convert -format map\n" );
 581
 582         /* walk entity list */
 583         for( i = 0; i < numEntities; i++ )
 584         {
 585                 /* get entity */
 586                 e = &entities[ i ];
 587
 588                 /* start entity */
 589                 fprintf( f, "// entity %d\n", i );
 590                 fprintf( f, "{\n" );
 591
 592                 /* export keys */
 593                 ConvertEPairs( f, e );
 594                 fprintf( f, "\n" );
 595
 596                 /* get model num */
 597                 if( i == 0 )
 598                         modelNum = 0;
 599                 else
 600                 {
 601                         value = ValueForKey( e, "model" );
 602                         if( value[ 0 ] == '*' )
 603                                 modelNum = atoi( value + 1 );
 604                         else
 605                                 modelNum = -1;
 606                 }
 607
 608                 /* only handle bsp models */
 609                 if( modelNum >= 0 )
 610                 {
 611                         /* get model */
 612                         model = &bspModels[ modelNum ];
 613
 614                         /* get entity origin */
 615                         value = ValueForKey( e, "origin" );
 616                         if( value[ 0 ] == '\0' )
 617                                 VectorClear( origin );
 618                         else
 619                                 GetVectorForKey( e, "origin", origin );
 620
 621                         /* convert model */
 622                         ConvertModel( f, model, modelNum, origin );
 623                 }
 624
 625                 /* end entity */
 626                 fprintf( f, "}\n\n" );
 627         }
 628
 629         /* close the file and return */
 630         fclose( f );
 631
 632         /* return to sender */
 633         return 0;
 634 }