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(brushPrimites)
 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                                 Vector2Set(xyI, DotProduct(vert[0]->xyz, texX), DotProduct(vert[0]->xyz, texY));
 307                                 Vector2Set(xyJ, DotProduct(vert[1]->xyz, texX), DotProduct(vert[1]->xyz, texY));
 308                                 Vector2Set(xyK, DotProduct(vert[2]->xyz, texX), DotProduct(vert[2]->xyz, texY));
 309                                 stI[0] = vert[0]->st[0]; stI[1] = vert[0]->st[1];
 310                                 stJ[0] = vert[1]->st[0]; stJ[1] = vert[1]->st[1];
 311                                 stK[0] = vert[2]->st[0]; stK[1] = vert[2]->st[1];
 312
 313                                 //   - solve linear equations:
 314                                 //     - (x, y) := xyz . (texX, texY)
 315                                 //     - st[i] = texMat[i][0]*x + texMat[i][1]*y + texMat[i][2]
 316                                 //       (for three vertices)
 317                                 D = Det3x3(
 318                                         xyI[0], xyI[1], 1,
 319                                         xyJ[0], xyJ[1], 1,
 320                                         xyK[0], xyK[1], 1
 321                                 );
 322                                 if(D != 0)
 323                                 {
 324                                         for(i = 0; i < 2; ++i)
 325                                         {
 326                                                 D0 = Det3x3(
 327                                                         stI[i], xyI[1], 1,
 328                                                         stJ[i], xyJ[1], 1,
 329                                                         stK[i], xyK[1], 1
 330                                                 );
 331                                                 D1 = Det3x3(
 332                                                         xyI[0], stI[i], 1,
 333                                                         xyJ[0], stJ[i], 1,
 334                                                         xyK[0], stK[i], 1
 335                                                 );
 336                                                 D2 = Det3x3(
 337                                                         xyI[0], xyI[1], stI[i],
 338                                                         xyJ[0], xyJ[1], stJ[i],
 339                                                         xyK[0], xyK[1], stK[i]
 340                                                 );
 341                                                 VectorSet(buildSide->texMat[i], D0 / D, D1 / D, D2 / D);
 342                                         }
 343                                         valid = 1;
 344                                 }
 345                                 else
 346                                         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",
 347                                                 buildPlane->normal[0], buildPlane->normal[1], buildPlane->normal[2],
 348                                                 vert[0]->normal[0], vert[0]->normal[1], vert[0]->normal[2],
 349                                                 texX[0], texX[1], texX[2], texY[0], texY[1], texY[2],
 350                                                 vert[0]->xyz[0], vert[0]->xyz[1], vert[0]->xyz[2], xyI[0], xyI[1],
 351                                                 vert[1]->xyz[0], vert[1]->xyz[1], vert[1]->xyz[2], xyJ[0], xyJ[1],
 352                                                 vert[2]->xyz[0], vert[2]->xyz[1], vert[2]->xyz[2], xyK[0], xyK[1]
 353                                                 );
 354
 355                                 /* print brush side */
 356                                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 357                                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( ( %.8f %.8f %.8f ) ( %.8f %.8f %.8f ) ) %s %d 0 0\n",
 358                                                 pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 359                                                 pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 360                                                 pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 361                                                 buildSide->texMat[0][0], buildSide->texMat[0][1], buildSide->texMat[0][2],
 362                                                 buildSide->texMat[1][0], buildSide->texMat[1][1], buildSide->texMat[1][2],
 363                                                 texture,
 364                                                 // DEBUG: valid ? 0 : C_DETAIL
 365                                                 0
 366                                            );
 367                         }
 368                         else
 369                         {
 370                                 // invert QuakeTextureVecs
 371                                 vec3_t vecs[2];
 372                                 int sv, tv;
 373                                 vec2_t stI, stJ, stK;
 374                                 vec3_t xyzI, xyzJ, xyzK;
 375                                 vec3_t rrs[3];
 376                                 vec3_t sts[2];
 377                                 vec2_t shift, scale;
 378                                 vec_t rotate;
 379
 380                                 TextureAxisFromPlane(buildPlane, vecs[0], vecs[1]);
 381                                 if (vecs[0][0])
 382                                         sv = 0;
 383                                 else if (vecs[0][1])
 384                                         sv = 1;
 385                                 else
 386                                         sv = 2;
 387                                 if (vecs[1][0])
 388                                         tv = 0;
 389                                 else if (vecs[1][1])
 390                                         tv = 1;
 391                                 else
 392                                         tv = 2;
 393
 394                                 stI[0] = vert[0]->st[0] * si->shaderWidth; stI[1] = vert[0]->st[1] * si->shaderHeight;
 395                                 stJ[0] = vert[1]->st[0] * si->shaderWidth; stJ[1] = vert[1]->st[1] * si->shaderHeight;
 396                                 stK[0] = vert[2]->st[0] * si->shaderWidth; stK[1] = vert[2]->st[1] * si->shaderHeight;
 397
 398                                 D = Det3x3(
 399                                         vert[0]->xyz[sv], vert[0]->xyz[tv], 1,
 400                                         vert[1]->xyz[sv], vert[1]->xyz[tv], 1,
 401                                         vert[2]->xyz[sv], vert[2]->xyz[tv], 1
 402                                 );
 403                                 if(D != 0)
 404                                 {
 405                                         for(i = 0; i < 2; ++i)
 406                                         {
 407                                                 D0 = Det3x3(
 408                                                         stI[i], vert[0]->xyz[tv], 1,
 409                                                         stJ[i], vert[1]->xyz[tv], 1,
 410                                                         stK[i], vert[2]->xyz[tv], 1
 411                                                 );
 412                                                 D1 = Det3x3(
 413                                                         vert[0]->xyz[sv], stI[i], 1,
 414                                                         vert[1]->xyz[sv], stJ[i], 1,
 415                                                         vert[2]->xyz[sv], stK[i], 1
 416                                                 );
 417                                                 D2 = Det3x3(
 418                                                         vert[0]->xyz[sv], vert[0]->xyz[tv], stI[i],
 419                                                         vert[1]->xyz[sv], vert[1]->xyz[tv], stJ[i],
 420                                                         vert[2]->xyz[sv], vert[2]->xyz[tv], stK[i]
 421                                                 );
 422                                                 VectorSet(sts[i], D0 / D, D1 / D, D2 / D);
 423                                         }
 424                                         valid = 1;
 425                                 }
 426                                 else
 427                                         fprintf(stderr, "degenerate triangle found when solving texDef equations\n"); // FIXME add stuff here
 428
 429                                 // now we must solve:
 430                                         //      // now we must invert:
 431                                         //      ang = rotate / 180 * Q_PI;
 432                                         //      sinv = sin(ang);
 433                                         //      cosv = cos(ang);
 434                                         //      ns = cosv * vecs[0][sv];
 435                                         //      nt = sinv * vecs[0][sv];
 436                                         //      vecsrotscaled[0][sv] = ns / scale[0];
 437                                         //      vecsrotscaled[0][tv] = nt / scale[0];
 438                                         //      ns = -sinv * vecs[1][tv];
 439                                         //      nt =  cosv * vecs[1][tv];
 440                                         //      vecsrotscaled[1][sv] = ns / scale[1];
 441                                         //      vecsrotscaled[1][tv] = nt / scale[1];
 442                                 scale[0] = sqrt(sts[0][0] * sts[0][0] + sts[0][1] * sts[0][1]);
 443                                 scale[1] = sqrt(sts[1][0] * sts[1][0] + sts[1][1] * sts[1][1]);
 444                                 rotate = atan2(sts[0][1] - sts[1][0], sts[0][0] + sts[1][1]);
 445                                 shift[0] = sts[0][2];
 446                                 shift[1] = sts[1][2];
 447
 448                                 /* print brush side */
 449                                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 450                                 fprintf( f, "\t\t( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) ( %.3f %.3f %.3f ) %.8f %.8f %.8f %.8f %.8f %s %d 0 0\n",
 451                                                 pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 452                                                 pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 453                                                 pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 454                                                 shift[0], shift[1], rotate, scale[0], scale[1],
 455                                                 texture,
 456                                                 // DEBUG: valid ? 0 : C_DETAIL
 457                                                 0
 458                                            );
 459                         }
 460                 }
 461                 else
 462                         if(strncmp(buildSide->shaderInfo->shader, "textures/common/", 16))
 463                                 fprintf(stderr, "no matching triangle for brushside using %s (hopefully nobody can see this side anyway)\n", buildSide->shaderInfo->shader);
 464         }
 465
 466         /* end brush */
 467         if(brushPrimitives)
 468         {
 469                 fprintf( f, "\t}\n" );
 470         }
 471         fprintf( f, "\t}\n\n" );
 472 }
 473
 474 #if 0
 475         /* iterate through the brush sides (ignore the first 6 bevel planes) */
 476         for( i = 0; i < brush->numSides; i++ )
 477         {
 478                 /* get side */
 479                 side = &bspBrushSides[ brush->firstSide + i ];
 480
 481                 /* get shader */
 482                 if( side->shaderNum < 0 || side->shaderNum >= numBSPShaders )
 483                         continue;
 484                 shader = &bspShaders[ side->shaderNum ];
 485                 if( !Q_stricmp( shader->shader, "default" ) || !Q_stricmp( shader->shader, "noshader" ) )
 486                         continue;
 487
 488                 /* get texture name */
 489                 if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 490                         texture = shader->shader + 9;
 491                 else
 492                         texture = shader->shader;
 493
 494                 /* get plane */
 495                 plane = &bspPlanes[ side->planeNum ];
 496
 497                 /* make plane points */
 498                 {
 499                         vec3_t  vecs[ 2 ];
 500
 501
 502                         MakeNormalVectors( plane->normal, vecs[ 0 ], vecs[ 1 ] );
 503                         VectorMA( vec3_origin, plane->dist, plane->normal, pts[ 0 ] );
 504                         VectorMA( pts[ 0 ], 256.0f, vecs[ 0 ], pts[ 1 ] );
 505                         VectorMA( pts[ 0 ], 256.0f, vecs[ 1 ], pts[ 2 ] );
 506                 }
 507
 508                 /* offset by origin */
 509                 for( j = 0; j < 3; j++ )
 510                         VectorAdd( pts[ j ], origin, pts[ j ] );
 511
 512                 /* print brush side */
 513                 /* ( 640 24 -224 ) ( 448 24 -224 ) ( 448 -232 -224 ) common/caulk 0 48 0 0.500000 0.500000 0 0 0 */
 514                 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",
 515                         pts[ 0 ][ 0 ], pts[ 0 ][ 1 ], pts[ 0 ][ 2 ],
 516                         pts[ 1 ][ 0 ], pts[ 1 ][ 1 ], pts[ 1 ][ 2 ],
 517                         pts[ 2 ][ 0 ], pts[ 2 ][ 1 ], pts[ 2 ][ 2 ],
 518                         texture );
 519         }
 520 #endif
 521
 522
 523
 524 /*
 525 ConvertPatch()
 526 converts a bsp patch to a map patch
 527
 528         {
 529                 patchDef2
 530                 {
 531                         base_wall/concrete
 532                         ( 9 3 0 0 0 )
 533                         (
 534                                 ( ( 168 168 -192 0 2 ) ( 168 168 -64 0 1 ) ( 168 168 64 0 0 ) ... )
 535                                 ...
 536                         )
 537                 }
 538         }
 539
 540 */
 541
 542 static void ConvertPatch( FILE *f, int num, bspDrawSurface_t *ds, vec3_t origin )
 543 {
 544         int                             x, y;
 545         bspShader_t             *shader;
 546         char                    *texture;
 547         bspDrawVert_t   *dv;
 548         vec3_t                  xyz;
 549
 550
 551         /* only patches */
 552         if( ds->surfaceType != MST_PATCH )
 553                 return;
 554
 555         /* get shader */
 556         if( ds->shaderNum < 0 || ds->shaderNum >= numBSPShaders )
 557                 return;
 558         shader = &bspShaders[ ds->shaderNum ];
 559
 560         /* get texture name */
 561         if( !Q_strncasecmp( shader->shader, "textures/", 9 ) )
 562                 texture = shader->shader + 9;
 563         else
 564                 texture = shader->shader;
 565
 566         /* start patch */
 567         fprintf( f, "\t// patch %d\n", num );
 568         fprintf( f, "\t{\n" );
 569         fprintf( f, "\t\tpatchDef2\n" );
 570         fprintf( f, "\t\t{\n" );
 571         fprintf( f, "\t\t\t%s\n", texture );
 572         fprintf( f, "\t\t\t( %d %d 0 0 0 )\n", ds->patchWidth, ds->patchHeight );
 573         fprintf( f, "\t\t\t(\n" );
 574
 575         /* iterate through the verts */
 576         for( x = 0; x < ds->patchWidth; x++ )
 577         {
 578                 /* start row */
 579                 fprintf( f, "\t\t\t\t(" );
 580
 581                 /* iterate through the row */
 582                 for( y = 0; y < ds->patchHeight; y++ )
 583                 {
 584                         /* get vert */
 585                         dv = &bspDrawVerts[ ds->firstVert + (y * ds->patchWidth) + x ];
 586
 587                         /* offset it */
 588                         VectorAdd( origin, dv->xyz, xyz );
 589
 590                         /* print vertex */
 591                         fprintf( f, " ( %f %f %f %f %f )", xyz[ 0 ], xyz[ 1 ], xyz[ 2 ], dv->st[ 0 ], dv->st[ 1 ] );
 592                 }
 593
 594                 /* end row */
 595                 fprintf( f, " )\n" );
 596         }
 597
 598         /* end patch */
 599         fprintf( f, "\t\t\t)\n" );
 600         fprintf( f, "\t\t}\n" );
 601         fprintf( f, "\t}\n\n" );
 602 }
 603
 604
 605
 606 /*
 607 ConvertModel()
 608 exports a bsp model to a map file
 609 */
 610
 611 static void ConvertModel( FILE *f, bspModel_t *model, int modelNum, vec3_t origin, qboolean brushPrimitives )
 612 {
 613         int                                     i, num;
 614         bspBrush_t                      *brush;
 615         bspDrawSurface_t        *ds;
 616
 617
 618         /* convert bsp planes to map planes */
 619         nummapplanes = numBSPPlanes;
 620         AUTOEXPAND_BY_REALLOC(mapplanes, nummapplanes, allocatedmapplanes, 1024);
 621         for( i = 0; i < numBSPPlanes; i++ )
 622         {
 623                 VectorCopy( bspPlanes[ i ].normal, mapplanes[ i ].normal );
 624                 mapplanes[ i ].dist = bspPlanes[ i ].dist;
 625                 mapplanes[ i ].type = PlaneTypeForNormal( mapplanes[ i ].normal );
 626                 mapplanes[ i ].hash_chain = 0;
 627         }
 628
 629         /* allocate a build brush */
 630         buildBrush = AllocBrush( 512 );
 631         buildBrush->entityNum = 0;
 632         buildBrush->original = buildBrush;
 633
 634         if(origin[0] != 0 || origin[1] != 0 || origin[2] != 0)
 635                 ConvertOriginBrush(f, -1, origin);
 636
 637         /* go through each brush in the model */
 638         for( i = 0; i < model->numBSPBrushes; i++ )
 639         {
 640                 num = i + model->firstBSPBrush;
 641                 brush = &bspBrushes[ num ];
 642                 ConvertBrush( f, num, brush, origin, brushPrimitives );
 643         }
 644
 645         /* free the build brush */
 646         free( buildBrush );
 647
 648         /* go through each drawsurf in the model */
 649         for( i = 0; i < model->numBSPSurfaces; i++ )
 650         {
 651                 num = i + model->firstBSPSurface;
 652                 ds = &bspDrawSurfaces[ num ];
 653
 654                 /* we only love patches */
 655                 if( ds->surfaceType == MST_PATCH )
 656                         ConvertPatch( f, num, ds, origin );
 657         }
 658 }
 659
 660
 661
 662 /*
 663 ConvertEPairs()
 664 exports entity key/value pairs to a map file
 665 */
 666
 667 static void ConvertEPairs( FILE *f, entity_t *e, qboolean skip_origin )
 668 {
 669         epair_t *ep;
 670
 671
 672         /* walk epairs */
 673         for( ep = e->epairs; ep != NULL; ep = ep->next )
 674         {
 675                 /* ignore empty keys/values */
 676                 if( ep->key[ 0 ] == '\0' || ep->value[ 0 ] == '\0' )
 677                         continue;
 678
 679                 /* ignore model keys with * prefixed values */
 680                 if( !Q_stricmp( ep->key, "model" ) && ep->value[ 0 ] == '*' )
 681                         continue;
 682
 683                 /* ignore origin keys if skip_origin is set */
 684                 if( skip_origin && !Q_stricmp( ep->key, "origin" ) )
 685                         continue;
 686
 687                 /* emit the epair */
 688                 fprintf( f, "\t\"%s\" \"%s\"\n", ep->key, ep->value );
 689         }
 690 }
 691
 692
 693
 694 /*
 695 ConvertBSPToMap()
 696 exports an quake map file from the bsp
 697 */
 698
 699 int ConvertBSPToMap_Ext( char *bspName, qboolean brushPrimitives )
 700 {
 701         int                             i, modelNum;
 702         FILE                    *f;
 703         bspModel_t              *model;
 704         entity_t                *e;
 705         vec3_t                  origin;
 706         const char              *value;
 707         char                    name[ 1024 ], base[ 1024 ];
 708
 709
 710         /* note it */
 711         Sys_Printf( "--- Convert BSP to MAP ---\n" );
 712
 713         /* create the bsp filename from the bsp name */
 714         strcpy( name, bspName );
 715         StripExtension( name );
 716         strcat( name, "_converted.map" );
 717         Sys_Printf( "writing %s\n", name );
 718
 719         ExtractFileBase( bspName, base );
 720         strcat( base, ".bsp" );
 721
 722         /* open it */
 723         f = fopen( name, "wb" );
 724         if( f == NULL )
 725                 Error( "Open failed on %s\n", name );
 726
 727         /* print header */
 728         fprintf( f, "// Generated by Q3Map2 (ydnar) -convert -format map\n" );
 729
 730         /* walk entity list */
 731         for( i = 0; i < numEntities; i++ )
 732         {
 733                 /* get entity */
 734                 e = &entities[ i ];
 735
 736                 /* start entity */
 737                 fprintf( f, "// entity %d\n", i );
 738                 fprintf( f, "{\n" );
 739
 740                 /* get model num */
 741                 if( i == 0 )
 742                         modelNum = 0;
 743                 else
 744                 {
 745                         value = ValueForKey( e, "model" );
 746                         if( value[ 0 ] == '*' )
 747                                 modelNum = atoi( value + 1 );
 748                         else
 749                                 modelNum = -1;
 750                 }
 751
 752                 /* export keys */
 753                 ConvertEPairs( f, e, modelNum >= 0 );
 754                 fprintf( f, "\n" );
 755
 756                 /* only handle bsp models */
 757                 if( modelNum >= 0 )
 758                 {
 759                         /* get model */
 760                         model = &bspModels[ modelNum ];
 761
 762                         /* get entity origin */
 763                         value = ValueForKey( e, "origin" );
 764                         if( value[ 0 ] == '\0' )
 765                                 VectorClear( origin );
 766                         else
 767                                 GetVectorForKey( e, "origin", origin );
 768
 769                         /* convert model */
 770                         ConvertModel( f, model, modelNum, origin, brushPrimitives );
 771                 }
 772
 773                 /* end entity */
 774                 fprintf( f, "}\n\n" );
 775         }
 776
 777         /* close the file and return */
 778         fclose( f );
 779
 780         /* return to sender */
 781         return 0;
 782 }
 783
 784 int ConvertBSPToMap( char *bspName )
 785 {
 786         return ConvertBSPToMap(bspName, qfalse);
 787 }
 788
 789 int ConvertBSPToMap_BP( char *bspName )
 790 {
 791         return ConvertBSPToMap(bspName, qtrue);
 792 }