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, qboolean brushPrimitives )
 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         if(brushPrimitives)
 206         {
 207                 fprintf( f, "\tbrushDef\n" );
 208                 fprintf( f, "\t{\n" );
 209         }
 210
 211         /* clear out build brush */
 212         for( i = 0; i < buildBrush->numsides; i++ )
 213         {
 214                 buildSide = &buildBrush->sides[ i ];
 215                 if( buildSide->winding != NULL )
 216                 {
 217                         FreeWinding( buildSide->winding );
 218                         buildSide->winding = NULL;
 219                 }
 220         }
 221         buildBrush->numsides = 0;
 222
 223         /* iterate through bsp brush sides */
 224         for( i = 0; i < brush->numSides; i++ )
 225         {
 226                 /* get side */
 227                 side = &bspBrushSides[ brush->firstSide + i ];
 228
 229                 /* get shader */
 230                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 231                         continue;
 232                 shader = &bspShaders[ side->shaderNum ];
 233                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 234                         continue;
 235
 236                 /* get plane */
 237                 plane = &bspPlanes[ side->planeNum ];
 238
 239                 /* add build side */
 240                 buildSide = &buildBrush->sides[ buildBrush->numsides ];
 241                 buildBrush->numsides++;
 242
 243                 /* tag it */
 244                 buildSide->shaderInfo = ShaderInfoForShader( shader->shader );
 245                 buildSide->planenum = side->planeNum;
 246                 buildSide->winding = NULL;
 247         }
 248
 249         /* make brush windings */
 250         if( !CreateBrushWindings( buildBrush ) )
 251                 return;
 252
 253         /* iterate through build brush sides */
 254         for( i = 0; i < buildBrush->numsides; i++ )
 255         {
 256                 /* get build side */
 257                 buildSide = &buildBrush->sides[ i ];
 258
 259                 /* get plane */
 260                 buildPlane = &mapplanes[ buildSide->planenum ];
 261
 262                 /* dummy check */
 263                 if( buildSide->shaderInfo == NULL || buildSide->winding == NULL )
 264                         continue;
 265
 266                 // st-texcoords -> texMat block
 267                 // start out with dummy
 268                 VectorSet(buildSide->texMat[0], 1/32.0, 0, 0);
 269                 VectorSet(buildSide->texMat[1], 0, 1/32.0, 0);
 270
 271                 // find surface for this side (by brute force)
 272                 // surface format:
 273                 //   - meshverts point in pairs of three into verts
 274                 //   - (triangles)
 275                 //   - find the triangle that has most in common with our side
 276                 GetBestSurfaceTriangleMatchForBrushside(buildSide, vert);
 277                 valid = 0;
 278
 279                 /* get texture name */
 280                 if( !Q_strncasecmp( buildSide->shaderInfo->shader, "textures/", 9 ) )
 281                         texture = buildSide->shaderInfo->shader + 9;
 282                 else
 283                         texture = buildSide->shaderInfo->shader;
 284
 285                 /* get plane points and offset by origin */
 286                 for( j = 0; j < 3; j++ )
 287                 {
 288                         VectorAdd( buildSide->winding->p[ j ], origin, pts[ j ] );
 289                         //%     pts[ j ][ 0 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 0 ] * SNAP_FLOAT_TO_INT + 0.5f );
 290                         //%     pts[ j ][ 1 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 1 ] * SNAP_FLOAT_TO_INT + 0.5f );
 291                         //%     pts[ j ][ 2 ] = SNAP_INT_TO_FLOAT * floor( pts[ j ][ 2 ] * SNAP_FLOAT_TO_INT + 0.5f );
 292                 }
 293
 294                 if(vert[0] && vert[1] && vert[2])
 295                 {
 296                         if(brushPrimitives)
 297                         {
 298                                 int i;
 299                                 vec3_t texX, texY;
 300                                 vec2_t xyI, xyJ, xyK;
 301                                 vec2_t stI, stJ, stK;
 302                                 vec_t D, D0, D1, D2;
 303
 304                                 ComputeAxisBase(buildPlane->normal, texX, texY);
 305
 306                                 xyI[0] = DotProduct(vert[0]->xyz, texX);
 307                                 xyI[1] = DotProduct(vert[0]->xyz, texY);
 308                                 xyJ[0] = DotProduct(vert[1]->xyz, texX);
 309                                 xyJ[1] = DotProduct(vert[1]->xyz, texY);
 310                                 xyK[0] = DotProduct(vert[2]->xyz, texX);
 311                                 xyK[1] = DotProduct(vert[2]->xyz, texY);
 312                                 stI[0] = vert[0]->st[0]; stI[1] = vert[0]->st[1];
 313                                 stJ[0] = vert[1]->st[0]; stJ[1] = vert[1]->st[1];
 314                                 stK[0] = vert[2]->st[0]; stK[1] = vert[2]->st[1];
 315
 316                                 //   - solve linear equations:
 317                                 //     - (x, y) := xyz . (texX, texY)
 318                                 //     - st[i] = texMat[i][0]*x + texMat[i][1]*y + texMat[i][2]
 319                                 //       (for three vertices)
 320                                 D = Det3x3(
 321                                         xyI[0], xyI[1], 1,
 322                                         xyJ[0], xyJ[1], 1,
 323                                         xyK[0], xyK[1], 1
 324                                 );
 325                                 if(D != 0)
 326                                 {
 327                                         for(i = 0; i < 2; ++i)
 328                                         {
 329                                                 D0 = Det3x3(
 330                                                         stI[i], xyI[1], 1,
 331                                                         stJ[i], xyJ[1], 1,
 332                                                         stK[i], xyK[1], 1
 333                                                 );
 334                                                 D1 = Det3x3(
 335                                                         xyI[0], stI[i], 1,
 336                                                         xyJ[0], stJ[i], 1,
 337                                                         xyK[0], stK[i], 1
 338                                                 );
 339                                                 D2 = Det3x3(
 340                                                         xyI[0], xyI[1], stI[i],
 341                                                         xyJ[0], xyJ[1], stJ[i],
 342                                                         xyK[0], xyK[1], stK[i]
 343                                                 );
 344                                                 VectorSet(buildSide->texMat[i], D0 / D, D1 / D, D2 / D);
 345                                         }
 346                                         valid = 1;
 347                                 }
 348                                 else
 349                                         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",
 350                                                 buildPlane->normal[0], buildPlane->normal[1], buildPlane->normal[2],
 351                                                 vert[0]->normal[0], vert[0]->normal[1], vert[0]->normal[2],
 352                                                 texX[0], texX[1], texX[2], texY[0], texY[1], texY[2],
 353                                                 vert[0]->xyz[0], vert[0]->xyz[1], vert[0]->xyz[2], xyI[0], xyI[1],
 354                                                 vert[1]->xyz[0], vert[1]->xyz[1], vert[1]->xyz[2], xyJ[0], xyJ[1],
 355                                                 vert[2]->xyz[0], vert[2]->xyz[1], vert[2]->xyz[2], xyK[0], xyK[1]
 356                                                 );
 357
 358                                 /* print brush side */
 359                                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 360                                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( ( %.8f %.8f %.8f ) ( %.8f %.8f %.8f ) ) %s %d 0 0\n",
 361                                                 pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 362                                                 pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 363                                                 pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 364                                                 buildSide->texMat[0][0], buildSide->texMat[0][1], buildSide->texMat[0][2],
 365                                                 buildSide->texMat[1][0], buildSide->texMat[1][1], buildSide->texMat[1][2],
 366                                                 texture,
 367                                                 // DEBUG: valid ? 0 : C_DETAIL
 368                                                 0
 369                                            );
 370                         }
 371                         else
 372                         {
 373                                 // invert QuakeTextureVecs
 374                                 vec3_t vecs[2];
 375                                 int sv, tv;
 376                                 vec2_t stI, stJ, stK;
 377                                 vec3_t sts[2];
 378                                 vec2_t shift, scale;
 379                                 vec_t rotate;
 380                                 vec_t D, D0, D1, D2;
 381
 382                                 TextureAxisFromPlane(buildPlane, vecs[0], vecs[1]);
 383                                 if (vecs[0][0])
 384                                         sv = 0;
 385                                 else if (vecs[0][1])
 386                                         sv = 1;
 387                                 else
 388                                         sv = 2;
 389                                 if (vecs[1][0])
 390                                         tv = 0;
 391                                 else if (vecs[1][1])
 392                                         tv = 1;
 393                                 else
 394                                         tv = 2;
 395
 396                                 stI[0] = vert[0]->st[0] * buildSide->shaderInfo->shaderWidth; stI[1] = vert[0]->st[1] * buildSide->shaderInfo->shaderHeight;
 397                                 stJ[0] = vert[1]->st[0] * buildSide->shaderInfo->shaderWidth; stJ[1] = vert[1]->st[1] * buildSide->shaderInfo->shaderHeight;
 398                                 stK[0] = vert[2]->st[0] * buildSide->shaderInfo->shaderWidth; stK[1] = vert[2]->st[1] * buildSide->shaderInfo->shaderHeight;
 399
 400                                 D = Det3x3(
 401                                         vert[0]->xyz[sv], vert[0]->xyz[tv], 1,
 402                                         vert[1]->xyz[sv], vert[1]->xyz[tv], 1,
 403                                         vert[2]->xyz[sv], vert[2]->xyz[tv], 1
 404                                 );
 405                                 if(D != 0)
 406                                 {
 407                                         for(i = 0; i < 2; ++i)
 408                                         {
 409                                                 D0 = Det3x3(
 410                                                         stI[i], vert[0]->xyz[tv], 1,
 411                                                         stJ[i], vert[1]->xyz[tv], 1,
 412                                                         stK[i], vert[2]->xyz[tv], 1
 413                                                 );
 414                                                 D1 = Det3x3(
 415                                                         vert[0]->xyz[sv], stI[i], 1,
 416                                                         vert[1]->xyz[sv], stJ[i], 1,
 417                                                         vert[2]->xyz[sv], stK[i], 1
 418                                                 );
 419                                                 D2 = Det3x3(
 420                                                         vert[0]->xyz[sv], vert[0]->xyz[tv], stI[i],
 421                                                         vert[1]->xyz[sv], vert[1]->xyz[tv], stJ[i],
 422                                                         vert[2]->xyz[sv], vert[2]->xyz[tv], stK[i]
 423                                                 );
 424                                                 VectorSet(sts[i], D0 / D, D1 / D, D2 / D);
 425                                         }
 426                                         valid = 1;
 427                                 }
 428                                 else
 429                                         fprintf(stderr, "degenerate triangle found when solving texDef equations\n"); // FIXME add stuff here
 430
 431                                 // now we must solve:
 432                                         //      // now we must invert:
 433                                         //      ang = rotate / 180 * Q_PI;
 434                                         //      sinv = sin(ang);
 435                                         //      cosv = cos(ang);
 436                                         //      ns = cosv * vecs[0][sv];
 437                                         //      nt = sinv * vecs[0][sv];
 438                                         //      vecsrotscaled[0][sv] = ns / scale[0];
 439                                         //      vecsrotscaled[0][tv] = nt / scale[0];
 440                                         //      ns = -sinv * vecs[1][tv];
 441                                         //      nt =  cosv * vecs[1][tv];
 442                                         //      vecsrotscaled[1][sv] = ns / scale[1];
 443                                         //      vecsrotscaled[1][tv] = nt / scale[1];
 444                                 scale[0] = sqrt(sts[0][0] * sts[0][0] + sts[0][1] * sts[0][1]);
 445                                 scale[1] = sqrt(sts[1][0] * sts[1][0] + sts[1][1] * sts[1][1]);
 446                                 rotate = atan2(sts[0][1] - sts[1][0], sts[0][0] + sts[1][1]);
 447                                 shift[0] = sts[0][2];
 448                                 shift[1] = sts[1][2];
 449
 450                                 /* print brush side */
 451                                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 452                                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) %.8f %.8f %.8f %.8f %.8f %s %d 0 0\n",
 453                                                 pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 454                                                 pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 455                                                 pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 456                                                 shift[0], shift[1], rotate, scale[0], scale[1],
 457                                                 texture,
 458                                                 // DEBUG: valid ? 0 : C_DETAIL
 459                                                 0
 460                                            );
 461                         }
 462                 }
 463                 else
 464                         if(strncmp(buildSide->shaderInfo->shader, "textures/common/", 16))
 465                                 fprintf(stderr, "no matching triangle for brushside using %s (hopefully nobody can see this side anyway)\n", buildSide->shaderInfo->shader);
 466         }
 467
 468         /* end brush */
 469         if(brushPrimitives)
 470         {
 471                 fprintf( f, "\t}\n" );
 472         }
 473         fprintf( f, "\t}\n\n" );
 474 }
 475
 476 #if 0
 477         /* iterate through the brush sides (ignore the first 6 bevel planes) */
 478         for( i = 0; i < brush->numSides; i++ )
 479         {
 480                 /* get side */
 481                 side = &bspBrushSides[ brush->firstSide + i ];
 482
 483                 /* get shader */
 484                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 485                         continue;
 486                 shader = &bspShaders[ side->shaderNum ];
 487                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 488                         continue;
 489
 490                 /* get texture name */
 491                 if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 492                         texture = shader->shader + 9;
 493                 else
 494                         texture = shader->shader;
 495
 496                 /* get plane */
 497                 plane = &bspPlanes[ side->planeNum ];
 498
 499                 /* make plane points */
 500                 {
 501                         vec3_t  vecs[ 2 ];
 502
 503
 504                         MakeNormalVectors( plane->normal, vecs[ 0 ], vecs[ 1 ] );
 505                         VectorMA( vec3_origin, plane->dist, plane->normal, pts[ 0 ] );
 506                         VectorMA( pts[ 0 ], 256.0f, vecs[ 0 ], pts[ 1 ] );
 507                         VectorMA( pts[ 0 ], 256.0f, vecs[ 1 ], pts[ 2 ] );
 508                 }
 509
 510                 /* offset by origin */
 511                 for( j = 0; j < 3; j++ )
 512                         VectorAdd( pts[ j ], origin, pts[ j ] );
 513
 514                 /* print brush side */
 515                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 516                 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",
 517                         pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 518                         pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 519                         pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 520                         texture );
 521         }
 522 #endif
 523
 524
 525
 526 /*
 527 ConvertPatch()
 528 converts a bsp patch to a map patch
 529
 530         {
 531                 patchDef2
 532                 {
 533                         base_wall/concrete
 534                         ( 9 3 0 0 0 )
 535                         (
 536                                 ( ( 168 168 -192 0 2 ) ( 168 168 -64 0 1 ) ( 168 168 64 0 0 ) ... )
 537                                 ...
 538                         )
 539                 }
 540         }
 541
 542 */
 543
 544 static void ConvertPatch( FILE *f, int num, bspDrawSurface_t *ds, vec3_t origin )
 545 {
 546         int                             x, y;
 547         bspShader_t             *shader;
 548         char                    *texture;
 549         bspDrawVert_t   *dv;
 550         vec3_t                  xyz;
 551
 552
 553         /* only patches */
 554         if( ds->surfaceType != MST_PATCH )
 555                 return;
 556
 557         /* get shader */
 558         if( ds->shaderNum < 0 || ds->shaderNum >= numBSPShaders )
 559                 return;
 560         shader = &bspShaders[ ds->shaderNum ];
 561
 562         /* get texture name */
 563         if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 564                 texture = shader->shader + 9;
 565         else
 566                 texture = shader->shader;
 567
 568         /* start patch */
 569         fprintf( f, "\t// patch %d\n", num );
 570         fprintf( f, "\t{\n" );
 571         fprintf( f, "\t\tpatchDef2\n" );
 572         fprintf( f, "\t\t{\n" );
 573         fprintf( f, "\t\t\t%s\n", texture );
 574         fprintf( f, "\t\t\t( %d %d 0 0 0 )\n", ds->patchWidth, ds->patchHeight );
 575         fprintf( f, "\t\t\t(\n" );
 576
 577         /* iterate through the verts */
 578         for( x = 0; x < ds->patchWidth; x++ )
 579         {
 580                 /* start row */
 581                 fprintf( f, "\t\t\t\t(" );
 582
 583                 /* iterate through the row */
 584                 for( y = 0; y < ds->patchHeight; y++ )
 585                 {
 586                         /* get vert */
 587                         dv = &bspDrawVerts[ ds->firstVert + (y * ds->patchWidth) + x ];
 588
 589                         /* offset it */
 590                         VectorAdd( origin, dv->xyz, xyz );
 591
 592                         /* print vertex */
 593                         fprintf( f, " ( %f %f %f %f %f )", xyz[ 0 ], xyz[ 1 ], xyz[ 2 ], dv->st[ 0 ], dv->st[ 1 ] );
 594                 }
 595
 596                 /* end row */
 597                 fprintf( f, " )\n" );
 598         }
 599
 600         /* end patch */
 601         fprintf( f, "\t\t\t)\n" );
 602         fprintf( f, "\t\t}\n" );
 603         fprintf( f, "\t}\n\n" );
 604 }
 605
 606
 607
 608 /*
 609 ConvertModel()
 610 exports a bsp model to a map file
 611 */
 612
 613 static void ConvertModel( FILE *f, bspModel_t *model, int modelNum, vec3_t origin, qboolean brushPrimitives )
 614 {
 615         int                                     i, num;
 616         bspBrush_t                      *brush;
 617         bspDrawSurface_t        *ds;
 618
 619
 620         /* convert bsp planes to map planes */
 621         nummapplanes = numBSPPlanes;
 622         AUTOEXPAND_BY_REALLOC(mapplanes, nummapplanes, allocatedmapplanes, 1024);
 623         for( i = 0; i < numBSPPlanes; i++ )
 624         {
 625                 VectorCopy( bspPlanes[ i ].normal, mapplanes[ i ].normal );
 626                 mapplanes[ i ].dist = bspPlanes[ i ].dist;
 627                 mapplanes[ i ].type = PlaneTypeForNormal( mapplanes[ i ].normal );
 628                 mapplanes[ i ].hash_chain = 0;
 629         }
 630
 631         /* allocate a build brush */
 632         buildBrush = AllocBrush( 512 );
 633         buildBrush->entityNum = 0;
 634         buildBrush->original = buildBrush;
 635
 636         if(origin[0] != 0 || origin[1] != 0 || origin[2] != 0)
 637                 ConvertOriginBrush(f, -1, origin);
 638
 639         /* go through each brush in the model */
 640         for( i = 0; i < model->numBSPBrushes; i++ )
 641         {
 642                 num = i + model->firstBSPBrush;
 643                 brush = &bspBrushes[ num ];
 644                 ConvertBrush( f, num, brush, origin, brushPrimitives );
 645         }
 646
 647         /* free the build brush */
 648         free( buildBrush );
 649
 650         /* go through each drawsurf in the model */
 651         for( i = 0; i < model->numBSPSurfaces; i++ )
 652         {
 653                 num = i + model->firstBSPSurface;
 654                 ds = &bspDrawSurfaces[ num ];
 655
 656                 /* we only love patches */
 657                 if( ds->surfaceType == MST_PATCH )
 658                         ConvertPatch( f, num, ds, origin );
 659         }
 660 }
 661
 662
 663
 664 /*
 665 ConvertEPairs()
 666 exports entity key/value pairs to a map file
 667 */
 668
 669 static void ConvertEPairs( FILE *f, entity_t *e, qboolean skip_origin )
 670 {
 671         epair_t *ep;
 672
 673
 674         /* walk epairs */
 675         for( ep = e->epairs; ep != NULL; ep = ep->next )
 676         {
 677                 /* ignore empty keys/values */
 678                 if( ep->key[ 0 ] == '\0' || ep->value[ 0 ] == '\0' )
 679                         continue;
 680
 681                 /* ignore model keys with * prefixed values */
 682                 if( !Q_stricmp( ep->key, "model" ) && ep->value[ 0 ] == '*' )
 683                         continue;
 684
 685                 /* ignore origin keys if skip_origin is set */
 686                 if( skip_origin && !Q_stricmp( ep->key, "origin" ) )
 687                         continue;
 688
 689                 /* emit the epair */
 690                 fprintf( f, "\t\"%s\" \"%s\"\n", ep->key, ep->value );
 691         }
 692 }
 693
 694
 695
 696 /*
 697 ConvertBSPToMap()
 698 exports an quake map file from the bsp
 699 */
 700
 701 int ConvertBSPToMap_Ext( char *bspName, qboolean brushPrimitives )
 702 {
 703         int                             i, modelNum;
 704         FILE                    *f;
 705         bspModel_t              *model;
 706         entity_t                *e;
 707         vec3_t                  origin;
 708         const char              *value;
 709         char                    name[ 1024 ], base[ 1024 ];
 710
 711
 712         /* note it */
 713         Sys_Printf( "--- Convert BSP to MAP ---\n" );
 714
 715         /* create the bsp filename from the bsp name */
 716         strcpy( name, bspName );
 717         StripExtension( name );
 718         strcat( name, "_converted.map" );
 719         Sys_Printf( "writing %s\n", name );
 720
 721         ExtractFileBase( bspName, base );
 722         strcat( base, ".bsp" );
 723
 724         /* open it */
 725         f = fopen( name, "wb" );
 726         if( f == NULL )
 727                 Error( "Open failed on %s\n", name );
 728
 729         /* print header */
 730         fprintf( f, "// Generated by Q3Map2 (ydnar) -convert -format map\n" );
 731
 732         /* walk entity list */
 733         for( i = 0; i < numEntities; i++ )
 734         {
 735                 /* get entity */
 736                 e = &entities[ i ];
 737
 738                 /* start entity */
 739                 fprintf( f, "// entity %d\n", i );
 740                 fprintf( f, "{\n" );
 741
 742                 /* get model num */
 743                 if( i == 0 )
 744                         modelNum = 0;
 745                 else
 746                 {
 747                         value = ValueForKey( e, "model" );
 748                         if( value[ 0 ] == '*' )
 749                                 modelNum = atoi( value + 1 );
 750                         else
 751                                 modelNum = -1;
 752                 }
 753
 754                 /* export keys */
 755                 ConvertEPairs( f, e, modelNum >= 0 );
 756                 fprintf( f, "\n" );
 757
 758                 /* only handle bsp models */
 759                 if( modelNum >= 0 )
 760                 {
 761                         /* get model */
 762                         model = &bspModels[ modelNum ];
 763
 764                         /* get entity origin */
 765                         value = ValueForKey( e, "origin" );
 766                         if( value[ 0 ] == '\0' )
 767                                 VectorClear( origin );
 768                         else
 769                                 GetVectorForKey( e, "origin", origin );
 770
 771                         /* convert model */
 772                         ConvertModel( f, model, modelNum, origin, brushPrimitives );
 773                 }
 774
 775                 /* end entity */
 776                 fprintf( f, "}\n\n" );
 777         }
 778
 779         /* close the file and return */
 780         fclose( f );
 781
 782         /* return to sender */
 783         return 0;
 784 }
 785
 786 int ConvertBSPToMap( char *bspName )
 787 {
 788         return ConvertBSPToMap_Ext(bspName, qfalse);
 789 }
 790
 791 int ConvertBSPToMap_BP( char *bspName )
 792 {
 793         return ConvertBSPToMap_Ext(bspName, qtrue);
 794 }