Source/Graphic/Models.cpp

   1 /*
   2 Copyright (C) 2003, 2010 - Wolfire Games
   3 Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
   4
   5 This file is part of Lugaru.
   6
   7 Lugaru is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 Lugaru is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with Lugaru.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "Graphic/Models.hpp"
  22
  23 #include "Game.hpp"
  24 #include "Utils/Folders.hpp"
  25
  26 extern float multiplier;
  27 extern float viewdistance;
  28 extern XYZ viewer;
  29 extern float fadestart;
  30 extern float texdetail;
  31 extern bool decals;
  32
  33 extern bool visibleloading;
  34
  35 int Model::LineCheck(XYZ *p1, XYZ *p2, XYZ *p, XYZ *move, float *rotate)
  36 {
  37     static int j;
  38     static float distance;
  39     static float olddistance;
  40     static int intersecting;
  41     static int firstintersecting;
  42     static XYZ point;
  43
  44     *p1 = *p1 - *move;
  45     *p2 = *p2 - *move;
  46     if (*rotate)
  47         *p1 = DoRotation(*p1, 0, -*rotate, 0);
  48     if (*rotate)
  49         *p2 = DoRotation(*p2, 0, -*rotate, 0);
  50     if (!sphere_line_intersection(p1, p2, &boundingspherecenter, &boundingsphereradius))
  51         return -1;
  52     firstintersecting = -1;
  53
  54     for (j = 0; j < TriangleNum; j++) {
  55         intersecting = LineFacetd(p1, p2, &vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[1]], &vertex[Triangles[j].vertex[2]], &facenormals[j], &point);
  56         distance = (point.x - p1->x) * (point.x - p1->x) + (point.y - p1->y) * (point.y - p1->y) + (point.z - p1->z) * (point.z - p1->z);
  57         if ((distance < olddistance || firstintersecting == -1) && intersecting) {
  58             olddistance = distance;
  59             firstintersecting = j;
  60             *p = point;
  61         }
  62     }
  63
  64     if (*rotate)
  65         *p = DoRotation(*p, 0, *rotate, 0);
  66     *p = *p + *move;
  67     return firstintersecting;
  68 }
  69
  70 int Model::LineCheckPossible(XYZ *p1, XYZ *p2, XYZ *p, XYZ *move, float *rotate)
  71 {
  72     static int j;
  73     static float distance;
  74     static float olddistance;
  75     static int intersecting;
  76     static int firstintersecting;
  77     static XYZ point;
  78
  79     *p1 = *p1 - *move;
  80     *p2 = *p2 - *move;
  81     if (!sphere_line_intersection(p1, p2, &boundingspherecenter, &boundingsphereradius))
  82         return -1;
  83     firstintersecting = -1;
  84     if (*rotate)
  85         *p1 = DoRotation(*p1, 0, -*rotate, 0);
  86     if (*rotate)
  87         *p2 = DoRotation(*p2, 0, -*rotate, 0);
  88
  89     if (numpossible > 0 && numpossible < TriangleNum)
  90         for (j = 0; j < numpossible; j++) {
  91             if (possible[j] >= 0 && possible[j] < TriangleNum) {
  92                 intersecting = LineFacetd(p1, p2, &vertex[Triangles[possible[j]].vertex[0]], &vertex[Triangles[possible[j]].vertex[1]], &vertex[Triangles[possible[j]].vertex[2]], &facenormals[possible[j]], &point);
  93                 distance = (point.x - p1->x) * (point.x - p1->x) + (point.y - p1->y) * (point.y - p1->y) + (point.z - p1->z) * (point.z - p1->z);
  94                 if ((distance < olddistance || firstintersecting == -1) && intersecting) {
  95                     olddistance = distance;
  96                     firstintersecting = possible[j];
  97                     *p = point;
  98                 }
  99             }
 100         }
 101
 102     if (*rotate)
 103         *p = DoRotation(*p, 0, *rotate, 0);
 104     *p = *p + *move;
 105     return firstintersecting;
 106 }
 107
 108 int Model::LineCheckSlidePossible(XYZ *p1, XYZ *p2, XYZ *p, XYZ *move, float *rotate)
 109 {
 110     static int j;
 111     static float distance;
 112     static float olddistance;
 113     static int intersecting;
 114     static int firstintersecting;
 115     static XYZ point;
 116
 117     *p1 = *p1 - *move;
 118     *p2 = *p2 - *move;
 119     if (!sphere_line_intersection(p1, p2, &boundingspherecenter, &boundingsphereradius))
 120         return -1;
 121     firstintersecting = -1;
 122     if (*rotate)
 123         *p1 = DoRotation(*p1, 0, -*rotate, 0);
 124     if (*rotate)
 125         *p2 = DoRotation(*p2, 0, -*rotate, 0);
 126
 127     if (numpossible)
 128         for (j = 0; j < numpossible; j++) {
 129             if (possible[j] >= 0 && possible[j] < TriangleNum) {
 130                 intersecting = LineFacetd(p1, p2, &vertex[Triangles[possible[j]].vertex[0]], &vertex[Triangles[possible[j]].vertex[1]], &vertex[Triangles[possible[j]].vertex[2]], &facenormals[possible[j]], &point);
 131                 distance = (point.x - p1->x) * (point.x - p1->x) + (point.y - p1->y) * (point.y - p1->y) + (point.z - p1->z) * (point.z - p1->z);
 132                 if ((distance < olddistance || firstintersecting == -1) && intersecting) {
 133                     olddistance = distance;
 134                     firstintersecting = possible[j];
 135                 }
 136             }
 137         }
 138
 139     if (firstintersecting > 0) {
 140         distance = abs((facenormals[firstintersecting].x * p2->x) + (facenormals[firstintersecting].y * p2->y) + (facenormals[firstintersecting].z * p2->z) - ((facenormals[firstintersecting].x * vertex[Triangles[firstintersecting].vertex[0]].x) + (facenormals[firstintersecting].y * vertex[Triangles[firstintersecting].vertex[0]].y) + (facenormals[firstintersecting].z * vertex[Triangles[firstintersecting].vertex[0]].z)));
 141         *p2 -= facenormals[firstintersecting] * distance;
 142     }
 143
 144     if (*rotate)
 145         *p2 = DoRotation(*p2, 0, *rotate, 0);
 146     *p2 = *p2 + *move;
 147     return firstintersecting;
 148 }
 149
 150 int Model::SphereCheck(XYZ *p1, float radius, XYZ *p, XYZ *move, float *rotate)
 151 {
 152     static int i, j;
 153     static float distance;
 154     static float olddistance;
 155     static int intersecting;
 156     static int firstintersecting;
 157     static XYZ point;
 158     static XYZ oldp1;
 159
 160     firstintersecting = -1;
 161
 162     oldp1 = *p1;
 163     *p1 = *p1 - *move;
 164     if (*rotate)
 165         *p1 = DoRotation(*p1, 0, -*rotate, 0);
 166     if (distsq(p1, &boundingspherecenter) > radius * radius + boundingsphereradius * boundingsphereradius)
 167         return -1;
 168
 169     for (i = 0; i < 4; i++) {
 170         for (j = 0; j < TriangleNum; j++) {
 171             intersecting = 0;
 172             distance = abs((facenormals[j].x * p1->x) + (facenormals[j].y * p1->y) + (facenormals[j].z * p1->z) - ((facenormals[j].x * vertex[Triangles[j].vertex[0]].x) + (facenormals[j].y * vertex[Triangles[j].vertex[0]].y) + (facenormals[j].z * vertex[Triangles[j].vertex[0]].z)));
 173             if (distance < radius) {
 174                 point = *p1 - facenormals[j] * distance;
 175                 if (PointInTriangle( &point, facenormals[j], &vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[1]], &vertex[Triangles[j].vertex[2]]))
 176                     intersecting = 1;
 177                 if (!intersecting)
 178                     intersecting = sphere_line_intersection(&vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[1]], p1, &radius);
 179                 if (!intersecting)
 180                     intersecting = sphere_line_intersection(&vertex[Triangles[j].vertex[1]], &vertex[Triangles[j].vertex[2]], p1, &radius);
 181                 if (!intersecting)
 182                     intersecting = sphere_line_intersection(&vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[2]], p1, &radius);
 183                 if (intersecting) {
 184                     *p1 += facenormals[j] * (distance - radius);
 185                 }
 186             }
 187             if ((distance < olddistance || firstintersecting == -1) && intersecting) {
 188                 olddistance = distance;
 189                 firstintersecting = j;
 190                 *p = point;
 191             }
 192         }
 193     }
 194     if (*rotate)
 195         *p = DoRotation(*p, 0, *rotate, 0);
 196     *p = *p + *move;
 197     if (*rotate)
 198         *p1 = DoRotation(*p1, 0, *rotate, 0);
 199     *p1 += *move;
 200     return firstintersecting;
 201 }
 202
 203 int Model::SphereCheckPossible(XYZ *p1, float radius, XYZ *move, float *rotate)
 204 {
 205     static int j;
 206     static float distance;
 207     static float olddistance;
 208     static int intersecting;
 209     static int firstintersecting;
 210     static XYZ point;
 211     static XYZ oldp1;
 212
 213     firstintersecting = -1;
 214
 215     oldp1 = *p1;
 216     *p1 = *p1 - *move;
 217
 218     numpossible = 0;
 219
 220     if (*rotate)
 221         *p1 = DoRotation(*p1, 0, -*rotate, 0);
 222     if (distsq(p1, &boundingspherecenter) > radius * radius + boundingsphereradius * boundingsphereradius) {
 223         *p1 = oldp1;
 224         return -1;
 225     }
 226
 227     for (j = 0; j < TriangleNum; j++) {
 228         intersecting = 0;
 229         distance = abs((facenormals[j].x * p1->x) + (facenormals[j].y * p1->y) + (facenormals[j].z * p1->z) - ((facenormals[j].x * vertex[Triangles[j].vertex[0]].x) + (facenormals[j].y * vertex[Triangles[j].vertex[0]].y) + (facenormals[j].z * vertex[Triangles[j].vertex[0]].z)));
 230         if (distance < radius) {
 231             point = *p1 - facenormals[j] * distance;
 232             if (PointInTriangle( &point, facenormals[j], &vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[1]], &vertex[Triangles[j].vertex[2]]))
 233                 intersecting = 1;
 234             if (!intersecting)
 235                 intersecting = sphere_line_intersection(&vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[1]], p1, &radius);
 236             if (!intersecting)
 237                 intersecting = sphere_line_intersection(&vertex[Triangles[j].vertex[1]], &vertex[Triangles[j].vertex[2]], p1, &radius);
 238             if (!intersecting)
 239                 intersecting = sphere_line_intersection(&vertex[Triangles[j].vertex[0]], &vertex[Triangles[j].vertex[2]], p1, &radius);
 240             if (intersecting) {
 241                 possible[numpossible] = j;
 242                 numpossible++;
 243             }
 244         }
 245         if ((distance < olddistance || firstintersecting == -1) && intersecting) {
 246             olddistance = distance;
 247             firstintersecting = j;
 248         }
 249     }
 250     if (*rotate)
 251         *p1 = DoRotation(*p1, 0, *rotate, 0);
 252     *p1 += *move;
 253     return firstintersecting;
 254 }
 255
 256
 257 void Model::UpdateVertexArray()
 258 {
 259     if (type != normaltype && type != decalstype)
 260         return;
 261     static int i;
 262     static int j;
 263     if (!flat)
 264         for (i = 0; i < TriangleNum; i++) {
 265             j = i * 24;
 266             vArray[j + 0] = Triangles[i].gx[0];
 267             vArray[j + 1] = Triangles[i].gy[0];
 268             vArray[j + 2] = normals[Triangles[i].vertex[0]].x;
 269             vArray[j + 3] = normals[Triangles[i].vertex[0]].y;
 270             vArray[j + 4] = normals[Triangles[i].vertex[0]].z;
 271             vArray[j + 5] = vertex[Triangles[i].vertex[0]].x;
 272             vArray[j + 6] = vertex[Triangles[i].vertex[0]].y;
 273             vArray[j + 7] = vertex[Triangles[i].vertex[0]].z;
 274
 275             vArray[j + 8] = Triangles[i].gx[1];
 276             vArray[j + 9] = Triangles[i].gy[1];
 277             vArray[j + 10] = normals[Triangles[i].vertex[1]].x;
 278             vArray[j + 11] = normals[Triangles[i].vertex[1]].y;
 279             vArray[j + 12] = normals[Triangles[i].vertex[1]].z;
 280             vArray[j + 13] = vertex[Triangles[i].vertex[1]].x;
 281             vArray[j + 14] = vertex[Triangles[i].vertex[1]].y;
 282             vArray[j + 15] = vertex[Triangles[i].vertex[1]].z;
 283
 284             vArray[j + 16] = Triangles[i].gx[2];
 285             vArray[j + 17] = Triangles[i].gy[2];
 286             vArray[j + 18] = normals[Triangles[i].vertex[2]].x;
 287             vArray[j + 19] = normals[Triangles[i].vertex[2]].y;
 288             vArray[j + 20] = normals[Triangles[i].vertex[2]].z;
 289             vArray[j + 21] = vertex[Triangles[i].vertex[2]].x;
 290             vArray[j + 22] = vertex[Triangles[i].vertex[2]].y;
 291             vArray[j + 23] = vertex[Triangles[i].vertex[2]].z;
 292         }
 293     if (flat)
 294         for (i = 0; i < TriangleNum; i++) {
 295             j = i * 24;
 296             vArray[j + 0] = Triangles[i].gx[0];
 297             vArray[j + 1] = Triangles[i].gy[0];
 298             vArray[j + 2] = facenormals[i].x * -1;
 299             vArray[j + 3] = facenormals[i].y * -1;
 300             vArray[j + 4] = facenormals[i].z * -1;
 301             vArray[j + 5] = vertex[Triangles[i].vertex[0]].x;
 302             vArray[j + 6] = vertex[Triangles[i].vertex[0]].y;
 303             vArray[j + 7] = vertex[Triangles[i].vertex[0]].z;
 304
 305             vArray[j + 8] = Triangles[i].gx[1];
 306             vArray[j + 9] = Triangles[i].gy[1];
 307             vArray[j + 10] = facenormals[i].x * -1;
 308             vArray[j + 11] = facenormals[i].y * -1;
 309             vArray[j + 12] = facenormals[i].z * -1;
 310             vArray[j + 13] = vertex[Triangles[i].vertex[1]].x;
 311             vArray[j + 14] = vertex[Triangles[i].vertex[1]].y;
 312             vArray[j + 15] = vertex[Triangles[i].vertex[1]].z;
 313
 314             vArray[j + 16] = Triangles[i].gx[2];
 315             vArray[j + 17] = Triangles[i].gy[2];
 316             vArray[j + 18] = facenormals[i].x * -1;
 317             vArray[j + 19] = facenormals[i].y * -1;
 318             vArray[j + 20] = facenormals[i].z * -1;
 319             vArray[j + 21] = vertex[Triangles[i].vertex[2]].x;
 320             vArray[j + 22] = vertex[Triangles[i].vertex[2]].y;
 321             vArray[j + 23] = vertex[Triangles[i].vertex[2]].z;
 322
 323         }
 324 }
 325
 326 void Model::UpdateVertexArrayNoTex()
 327 {
 328     if (type != normaltype && type != decalstype)
 329         return;
 330     static int i;
 331     static int j;
 332     if (!flat)
 333         for (i = 0; i < TriangleNum; i++) {
 334             j = i * 24;
 335             vArray[j + 2] = normals[Triangles[i].vertex[0]].x;
 336             vArray[j + 3] = normals[Triangles[i].vertex[0]].y;
 337             vArray[j + 4] = normals[Triangles[i].vertex[0]].z;
 338             vArray[j + 5] = vertex[Triangles[i].vertex[0]].x;
 339             vArray[j + 6] = vertex[Triangles[i].vertex[0]].y;
 340             vArray[j + 7] = vertex[Triangles[i].vertex[0]].z;
 341
 342             vArray[j + 10] = normals[Triangles[i].vertex[1]].x;
 343             vArray[j + 11] = normals[Triangles[i].vertex[1]].y;
 344             vArray[j + 12] = normals[Triangles[i].vertex[1]].z;
 345             vArray[j + 13] = vertex[Triangles[i].vertex[1]].x;
 346             vArray[j + 14] = vertex[Triangles[i].vertex[1]].y;
 347             vArray[j + 15] = vertex[Triangles[i].vertex[1]].z;
 348
 349             vArray[j + 18] = normals[Triangles[i].vertex[2]].x;
 350             vArray[j + 19] = normals[Triangles[i].vertex[2]].y;
 351             vArray[j + 20] = normals[Triangles[i].vertex[2]].z;
 352             vArray[j + 21] = vertex[Triangles[i].vertex[2]].x;
 353             vArray[j + 22] = vertex[Triangles[i].vertex[2]].y;
 354             vArray[j + 23] = vertex[Triangles[i].vertex[2]].z;
 355         }
 356     if (flat)
 357         for (i = 0; i < TriangleNum; i++) {
 358             j = i * 24;
 359             vArray[j + 2] = facenormals[i].x * -1;
 360             vArray[j + 3] = facenormals[i].y * -1;
 361             vArray[j + 4] = facenormals[i].z * -1;
 362             vArray[j + 5] = vertex[Triangles[i].vertex[0]].x;
 363             vArray[j + 6] = vertex[Triangles[i].vertex[0]].y;
 364             vArray[j + 7] = vertex[Triangles[i].vertex[0]].z;
 365
 366             vArray[j + 10] = facenormals[i].x * -1;
 367             vArray[j + 11] = facenormals[i].y * -1;
 368             vArray[j + 12] = facenormals[i].z * -1;
 369             vArray[j + 13] = vertex[Triangles[i].vertex[1]].x;
 370             vArray[j + 14] = vertex[Triangles[i].vertex[1]].y;
 371             vArray[j + 15] = vertex[Triangles[i].vertex[1]].z;
 372
 373             vArray[j + 18] = facenormals[i].x * -1;
 374             vArray[j + 19] = facenormals[i].y * -1;
 375             vArray[j + 20] = facenormals[i].z * -1;
 376             vArray[j + 21] = vertex[Triangles[i].vertex[2]].x;
 377             vArray[j + 22] = vertex[Triangles[i].vertex[2]].y;
 378             vArray[j + 23] = vertex[Triangles[i].vertex[2]].z;
 379         }
 380 }
 381
 382 void Model::UpdateVertexArrayNoTexNoNorm()
 383 {
 384     if (type != normaltype && type != decalstype)
 385         return;
 386     static int i;
 387     static int j;
 388     for (i = 0; i < TriangleNum; i++) {
 389         j = i * 24;
 390         vArray[j + 5] = vertex[Triangles[i].vertex[0]].x;
 391         vArray[j + 6] = vertex[Triangles[i].vertex[0]].y;
 392         vArray[j + 7] = vertex[Triangles[i].vertex[0]].z;
 393
 394         vArray[j + 13] = vertex[Triangles[i].vertex[1]].x;
 395         vArray[j + 14] = vertex[Triangles[i].vertex[1]].y;
 396         vArray[j + 15] = vertex[Triangles[i].vertex[1]].z;
 397
 398         vArray[j + 21] = vertex[Triangles[i].vertex[2]].x;
 399         vArray[j + 22] = vertex[Triangles[i].vertex[2]].y;
 400         vArray[j + 23] = vertex[Triangles[i].vertex[2]].z;
 401     }
 402 }
 403
 404 bool Model::loadnotex(const std::string& filename )
 405 {
 406     FILE *tfile;
 407     long i;
 408
 409     type = notextype;
 410     color = 0;
 411
 412     tfile = Folders::openMandatoryFile( Folders::getResourcePath(filename), "rb" );
 413
 414     // read model settings
 415
 416     fseek(tfile, 0, SEEK_SET);
 417     funpackf(tfile, "Bs Bs", &vertexNum, &TriangleNum);
 418
 419     // read the model data
 420     deallocate();
 421
 422     numpossible = 0;
 423
 424     owner = (int*)malloc(sizeof(int) * vertexNum);
 425     possible = (int*)malloc(sizeof(int) * TriangleNum);
 426     vertex = (XYZ*)malloc(sizeof(XYZ) * vertexNum);
 427     Triangles = (TexturedTriangle*)malloc(sizeof(TexturedTriangle) * TriangleNum);
 428     vArray = (GLfloat*)malloc(sizeof(GLfloat) * TriangleNum * 24);
 429
 430     for (i = 0; i < vertexNum; i++) {
 431         funpackf(tfile, "Bf Bf Bf", &vertex[i].x, &vertex[i].y, &vertex[i].z);
 432     }
 433
 434     for (i = 0; i < TriangleNum; i++) {
 435         short vertex[ 6];
 436         funpackf(tfile, "Bs Bs Bs Bs Bs Bs", &vertex[ 0], &vertex[ 1], &vertex[ 2], &vertex[ 3], &vertex[ 4], &vertex[ 5]);
 437         Triangles[i].vertex[ 0] = vertex[ 0];
 438         Triangles[i].vertex[ 1] = vertex[ 2];
 439         Triangles[i].vertex[ 2] = vertex[ 4];
 440         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gx[0], &Triangles[i].gx[1], &Triangles[i].gx[2]);
 441         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gy[0], &Triangles[i].gy[1], &Triangles[i].gy[2]);
 442     }
 443
 444     fclose(tfile);
 445
 446     UpdateVertexArray();
 447
 448     for (i = 0; i < vertexNum; i++) {
 449         owner[i] = -1;
 450     }
 451
 452     static int j;
 453     boundingsphereradius = 0;
 454     for (i = 0; i < vertexNum; i++) {
 455         for (j = 0; j < vertexNum; j++) {
 456             if (j != i && distsq(&vertex[j], &vertex[i]) / 2 > boundingsphereradius) {
 457                 boundingsphereradius = distsq(&vertex[j], &vertex[i]) / 2;
 458                 boundingspherecenter = (vertex[i] + vertex[j]) / 2;
 459             }
 460         }
 461     }
 462     boundingsphereradius = fast_sqrt(boundingsphereradius);
 463
 464     return true;
 465 }
 466
 467
 468 bool Model::load(const std::string& filename, bool texture )
 469 {
 470     FILE *tfile;
 471     long i;
 472
 473     LOGFUNC;
 474
 475     LOG(std::string("Loading model...") + filename);
 476
 477     if (visibleloading)
 478         Game::LoadingScreen();
 479
 480     type = normaltype;
 481     color = 0;
 482
 483     tfile = Folders::openMandatoryFile( Folders::getResourcePath(filename), "rb" );
 484
 485     // read model settings
 486
 487     fseek(tfile, 0, SEEK_SET);
 488     funpackf(tfile, "Bs Bs", &vertexNum, &TriangleNum);
 489
 490     // read the model data
 491     deallocate();
 492
 493     numpossible = 0;
 494
 495     owner = (int*)malloc(sizeof(int) * vertexNum);
 496     possible = (int*)malloc(sizeof(int) * TriangleNum);
 497     vertex = (XYZ*)malloc(sizeof(XYZ) * vertexNum);
 498     normals = (XYZ*)malloc(sizeof(XYZ) * vertexNum);
 499     facenormals = (XYZ*)malloc(sizeof(XYZ) * TriangleNum);
 500     Triangles = (TexturedTriangle*)malloc(sizeof(TexturedTriangle) * TriangleNum);
 501     vArray = (GLfloat*)malloc(sizeof(GLfloat) * TriangleNum * 24);
 502
 503     for (i = 0; i < vertexNum; i++) {
 504         funpackf(tfile, "Bf Bf Bf", &vertex[i].x, &vertex[i].y, &vertex[i].z);
 505     }
 506
 507     for (i = 0; i < TriangleNum; i++) {
 508         short vertex[ 6];
 509         funpackf(tfile, "Bs Bs Bs Bs Bs Bs", &vertex[ 0], &vertex[ 1], &vertex[ 2], &vertex[ 3], &vertex[ 4], &vertex[ 5]);
 510         Triangles[i].vertex[ 0] = vertex[ 0];
 511         Triangles[i].vertex[ 1] = vertex[ 2];
 512         Triangles[i].vertex[ 2] = vertex[ 4];
 513         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gx[0], &Triangles[i].gx[1], &Triangles[i].gx[2]);
 514         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gy[0], &Triangles[i].gy[1], &Triangles[i].gy[2]);
 515     }
 516
 517     modelTexture.xsz = 0;
 518
 519     fclose(tfile);
 520
 521     UpdateVertexArray();
 522
 523     for (i = 0; i < vertexNum; i++) {
 524         owner[i] = -1;
 525     }
 526
 527     static int j;
 528     boundingsphereradius = 0;
 529     for (i = 0; i < vertexNum; i++) {
 530         for (j = 0; j < vertexNum; j++) {
 531             if (j != i && distsq(&vertex[j], &vertex[i]) / 2 > boundingsphereradius) {
 532                 boundingsphereradius = distsq(&vertex[j], &vertex[i]) / 2;
 533                 boundingspherecenter = (vertex[i] + vertex[j]) / 2;
 534             }
 535         }
 536     }
 537     boundingsphereradius = fast_sqrt(boundingsphereradius);
 538
 539     return true;
 540 }
 541
 542 bool Model::loaddecal(const std::string& filename, bool texture )
 543 {
 544     FILE *tfile;
 545     long i, j;
 546
 547     LOGFUNC;
 548
 549     LOG(std::string("Loading decal...") + Folders::getResourcePath(filename));
 550
 551     type = decalstype;
 552     numdecals = 0;
 553     color = 0;
 554
 555     tfile = Folders::openMandatoryFile( Folders::getResourcePath(filename), "rb" );
 556
 557     // read model settings
 558
 559     fseek(tfile, 0, SEEK_SET);
 560     funpackf(tfile, "Bs Bs", &vertexNum, &TriangleNum);
 561
 562     // read the model data
 563
 564     deallocate();
 565
 566     numpossible = 0;
 567
 568     owner = (int*)malloc(sizeof(int) * vertexNum);
 569     possible = (int*)malloc(sizeof(int) * TriangleNum);
 570     vertex = (XYZ*)malloc(sizeof(XYZ) * vertexNum);
 571     normals = (XYZ*)malloc(sizeof(XYZ) * vertexNum);
 572     facenormals = (XYZ*)malloc(sizeof(XYZ) * TriangleNum);
 573     Triangles = (TexturedTriangle*)malloc(sizeof(TexturedTriangle) * TriangleNum);
 574     vArray = (GLfloat*)malloc(sizeof(GLfloat) * TriangleNum * 24);
 575
 576
 577     for (i = 0; i < vertexNum; i++) {
 578         funpackf(tfile, "Bf Bf Bf", &vertex[i].x, &vertex[i].y, &vertex[i].z);
 579     }
 580
 581     for (i = 0; i < TriangleNum; i++) {
 582         short vertex[ 6];
 583         funpackf(tfile, "Bs Bs Bs Bs Bs Bs", &vertex[ 0], &vertex[ 1], &vertex[ 2], &vertex[ 3], &vertex[ 4], &vertex[ 5]);
 584         Triangles[i].vertex[ 0] = vertex[ 0];
 585         Triangles[i].vertex[ 1] = vertex[ 2];
 586         Triangles[i].vertex[ 2] = vertex[ 4];
 587         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gx[0], &Triangles[i].gx[1], &Triangles[i].gx[2]);
 588         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gy[0], &Triangles[i].gy[1], &Triangles[i].gy[2]);
 589     }
 590
 591
 592     modelTexture.xsz = 0;
 593
 594     fclose(tfile);
 595
 596     UpdateVertexArray();
 597
 598     for (i = 0; i < vertexNum; i++) {
 599         owner[i] = -1;
 600     }
 601
 602     boundingsphereradius = 0;
 603     for (i = 0; i < vertexNum; i++) {
 604         for (j = 0; j < vertexNum; j++) {
 605             if (j != i && distsq(&vertex[j], &vertex[i]) / 2 > boundingsphereradius) {
 606                 boundingsphereradius = distsq(&vertex[j], &vertex[i]) / 2;
 607                 boundingspherecenter = (vertex[i] + vertex[j]) / 2;
 608             }
 609         }
 610     }
 611     boundingsphereradius = fast_sqrt(boundingsphereradius);
 612
 613     //allow decals
 614     if (!decaltexcoords) {
 615         decaltexcoords = (float***)malloc(sizeof(float**)*max_model_decals);
 616         for (i = 0; i < max_model_decals; i++) {
 617             decaltexcoords[i] = (float**)malloc(sizeof(float*) * 3);
 618             for (j = 0; j < 3; j++) {
 619                 decaltexcoords[i][j] = (float*)malloc(sizeof(float) * 2);
 620             }
 621         }
 622         decalvertex = (XYZ**)malloc(sizeof(XYZ*)*max_model_decals);
 623         for (i = 0; i < max_model_decals; i++) {
 624             decalvertex[i] = (XYZ*)malloc(sizeof(XYZ) * 3);
 625         }
 626
 627         decaltype = (int*)malloc(sizeof(int) * max_model_decals);
 628         decalopacity = (float*)malloc(sizeof(float) * max_model_decals);
 629         decalrotation = (float*)malloc(sizeof(float) * max_model_decals);
 630         decalalivetime = (float*)malloc(sizeof(float) * max_model_decals);
 631         decalposition = (XYZ*)malloc(sizeof(XYZ) * max_model_decals);
 632     }
 633
 634     return true;
 635 }
 636
 637 bool Model::loadraw(const std::string& filename)
 638 {
 639     FILE *tfile;
 640     long i;
 641
 642     LOGFUNC;
 643
 644     LOG(std::string("Loading raw...") + filename);
 645
 646     type = rawtype;
 647     color = 0;
 648
 649     tfile = Folders::openMandatoryFile( Folders::getResourcePath(filename), "rb" );
 650
 651     // read model settings
 652
 653     fseek(tfile, 0, SEEK_SET);
 654     funpackf(tfile, "Bs Bs", &vertexNum, &TriangleNum);
 655
 656     // read the model data
 657     deallocate();
 658
 659     numpossible = 0;
 660
 661     owner = (int*)malloc(sizeof(int) * vertexNum);
 662     possible = (int*)malloc(sizeof(int) * TriangleNum);
 663     vertex = (XYZ*)malloc(sizeof(XYZ) * vertexNum);
 664     Triangles = (TexturedTriangle*)malloc(sizeof(TexturedTriangle) * TriangleNum);
 665     vArray = (GLfloat*)malloc(sizeof(GLfloat) * TriangleNum * 24);
 666
 667
 668     for (i = 0; i < vertexNum; i++) {
 669         funpackf(tfile, "Bf Bf Bf", &vertex[i].x, &vertex[i].y, &vertex[i].z);
 670     }
 671
 672     for (i = 0; i < TriangleNum; i++) {
 673         short vertex[ 6];
 674         funpackf(tfile, "Bs Bs Bs Bs Bs Bs", &vertex[ 0], &vertex[ 1], &vertex[ 2], &vertex[ 3], &vertex[ 4], &vertex[ 5]);
 675         Triangles[i].vertex[ 0] = vertex[ 0];
 676         Triangles[i].vertex[ 1] = vertex[ 2];
 677         Triangles[i].vertex[ 2] = vertex[ 4];
 678         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gx[0], &Triangles[i].gx[1], &Triangles[i].gx[2]);
 679         funpackf(tfile, "Bf Bf Bf", &Triangles[i].gy[0], &Triangles[i].gy[1], &Triangles[i].gy[2]);
 680     }
 681
 682
 683     fclose(tfile);
 684
 685     for (i = 0; i < vertexNum; i++) {
 686         owner[i] = -1;
 687     }
 688
 689     return true;
 690 }
 691
 692
 693 void Model::UniformTexCoords()
 694 {
 695     static int i;
 696     for (i = 0; i < TriangleNum; i++) {
 697         Triangles[i].gy[0] = vertex[Triangles[i].vertex[0]].y;
 698         Triangles[i].gy[1] = vertex[Triangles[i].vertex[1]].y;
 699         Triangles[i].gy[2] = vertex[Triangles[i].vertex[2]].y;
 700         Triangles[i].gx[0] = vertex[Triangles[i].vertex[0]].x;
 701         Triangles[i].gx[1] = vertex[Triangles[i].vertex[1]].x;
 702         Triangles[i].gx[2] = vertex[Triangles[i].vertex[2]].x;
 703     }
 704     UpdateVertexArray();
 705 }
 706
 707
 708 void Model::FlipTexCoords()
 709 {
 710     static int i;
 711     for (i = 0; i < TriangleNum; i++) {
 712         Triangles[i].gy[0] = -Triangles[i].gy[0];
 713         Triangles[i].gy[1] = -Triangles[i].gy[1];
 714         Triangles[i].gy[2] = -Triangles[i].gy[2];
 715     }
 716     UpdateVertexArray();
 717 }
 718
 719 void Model::ScaleTexCoords(float howmuch)
 720 {
 721     static int i;
 722     for (i = 0; i < TriangleNum; i++) {
 723         Triangles[i].gx[0] *= howmuch;
 724         Triangles[i].gx[1] *= howmuch;
 725         Triangles[i].gx[2] *= howmuch;
 726         Triangles[i].gy[0] *= howmuch;
 727         Triangles[i].gy[1] *= howmuch;
 728         Triangles[i].gy[2] *= howmuch;
 729     }
 730     UpdateVertexArray();
 731 }
 732
 733 void Model::Scale(float xscale, float yscale, float zscale)
 734 {
 735     static int i;
 736     for (i = 0; i < vertexNum; i++) {
 737         vertex[i].x *= xscale;
 738         vertex[i].y *= yscale;
 739         vertex[i].z *= zscale;
 740     }
 741     UpdateVertexArray();
 742
 743     static int j;
 744
 745     boundingsphereradius = 0;
 746     for (i = 0; i < vertexNum; i++) {
 747         for (j = 0; j < vertexNum; j++) {
 748             if (j != i && distsq(&vertex[j], &vertex[i]) / 2 > boundingsphereradius) {
 749                 boundingsphereradius = distsq(&vertex[j], &vertex[i]) / 2;
 750                 boundingspherecenter = (vertex[i] + vertex[j]) / 2;
 751             }
 752         }
 753     }
 754     boundingsphereradius = fast_sqrt(boundingsphereradius);
 755 }
 756
 757 void Model::ScaleNormals(float xscale, float yscale, float zscale)
 758 {
 759     if (type != normaltype && type != decalstype)
 760         return;
 761     static int i;
 762     for (i = 0; i < vertexNum; i++) {
 763         normals[i].x *= xscale;
 764         normals[i].y *= yscale;
 765         normals[i].z *= zscale;
 766     }
 767     for (i = 0; i < TriangleNum; i++) {
 768         facenormals[i].x *= xscale;
 769         facenormals[i].y *= yscale;
 770         facenormals[i].z *= zscale;
 771     }
 772     UpdateVertexArray();
 773 }
 774
 775 void Model::Translate(float xtrans, float ytrans, float ztrans)
 776 {
 777     static int i;
 778     for (i = 0; i < vertexNum; i++) {
 779         vertex[i].x += xtrans;
 780         vertex[i].y += ytrans;
 781         vertex[i].z += ztrans;
 782     }
 783     UpdateVertexArray();
 784
 785     static int j;
 786     boundingsphereradius = 0;
 787     for (i = 0; i < vertexNum; i++) {
 788         for (j = 0; j < vertexNum; j++) {
 789             if (j != i && distsq(&vertex[j], &vertex[i]) / 2 > boundingsphereradius) {
 790                 boundingsphereradius = distsq(&vertex[j], &vertex[i]) / 2;
 791                 boundingspherecenter = (vertex[i] + vertex[j]) / 2;
 792             }
 793         }
 794     }
 795     boundingsphereradius = fast_sqrt(boundingsphereradius);
 796 }
 797
 798 void Model::Rotate(float xang, float yang, float zang)
 799 {
 800     static int i;
 801     for (i = 0; i < vertexNum; i++) {
 802         vertex[i] = DoRotation(vertex[i], xang, yang, zang);
 803     }
 804     UpdateVertexArray();
 805
 806     static int j;
 807     boundingsphereradius = 0;
 808     for (i = 0; i < vertexNum; i++) {
 809         for (j = 0; j < vertexNum; j++) {
 810             if (j != i && distsq(&vertex[j], &vertex[i]) / 2 > boundingsphereradius) {
 811                 boundingsphereradius = distsq(&vertex[j], &vertex[i]) / 2;
 812                 boundingspherecenter = (vertex[i] + vertex[j]) / 2;
 813             }
 814         }
 815     }
 816     boundingsphereradius = fast_sqrt(boundingsphereradius);
 817 }
 818
 819
 820 void Model::CalculateNormals(bool facenormalise)
 821 {
 822     if (visibleloading)
 823         Game::LoadingScreen();
 824     static int i;
 825     if (type != normaltype && type != decalstype)
 826         return;
 827
 828     for (i = 0; i < vertexNum; i++) {
 829         normals[i].x = 0;
 830         normals[i].y = 0;
 831         normals[i].z = 0;
 832     }
 833
 834     for (i = 0; i < TriangleNum; i++) {
 835         CrossProduct(vertex[Triangles[i].vertex[1]] - vertex[Triangles[i].vertex[0]], vertex[Triangles[i].vertex[2]] - vertex[Triangles[i].vertex[0]], &facenormals[i]);
 836
 837         normals[Triangles[i].vertex[0]].x += facenormals[i].x;
 838         normals[Triangles[i].vertex[0]].y += facenormals[i].y;
 839         normals[Triangles[i].vertex[0]].z += facenormals[i].z;
 840
 841         normals[Triangles[i].vertex[1]].x += facenormals[i].x;
 842         normals[Triangles[i].vertex[1]].y += facenormals[i].y;
 843         normals[Triangles[i].vertex[1]].z += facenormals[i].z;
 844
 845         normals[Triangles[i].vertex[2]].x += facenormals[i].x;
 846         normals[Triangles[i].vertex[2]].y += facenormals[i].y;
 847         normals[Triangles[i].vertex[2]].z += facenormals[i].z;
 848         if (facenormalise)
 849             Normalise(&facenormals[i]);
 850     }
 851     for (i = 0; i < vertexNum; i++) {
 852         Normalise(&normals[i]);
 853         normals[i] *= -1;
 854     }
 855     UpdateVertexArrayNoTex();
 856 }
 857
 858 void Model::drawimmediate()
 859 {
 860     textureptr.bind();
 861     glBegin(GL_TRIANGLES);
 862     for (int i = 0; i < TriangleNum; i++) {
 863         glTexCoord2f(Triangles[i].gx[0], Triangles[i].gy[0]);
 864         if (color)
 865             glColor3f(normals[Triangles[i].vertex[0]].x, normals[Triangles[i].vertex[0]].y, normals[Triangles[i].vertex[0]].z);
 866         if (!color && !flat)
 867             glNormal3f(normals[Triangles[i].vertex[0]].x, normals[Triangles[i].vertex[0]].y, normals[Triangles[i].vertex[0]].z);
 868         if (!color && flat)
 869             glNormal3f(facenormals[i].x, facenormals[i].y, facenormals[i].y);
 870         glVertex3f(vertex[Triangles[i].vertex[0]].x, vertex[Triangles[i].vertex[0]].y, vertex[Triangles[i].vertex[0]].z);
 871
 872         glTexCoord2f(Triangles[i].gx[1], Triangles[i].gy[1]);
 873         if (color)
 874             glColor3f(normals[Triangles[i].vertex[1]].x, normals[Triangles[i].vertex[1]].y, normals[Triangles[i].vertex[1]].z);
 875         if (!color && !flat)
 876             glNormal3f(normals[Triangles[i].vertex[1]].x, normals[Triangles[i].vertex[1]].y, normals[Triangles[i].vertex[1]].z);
 877         if (!color && flat)
 878             glNormal3f(facenormals[i].x, facenormals[i].y, facenormals[i].y);
 879         glVertex3f(vertex[Triangles[i].vertex[1]].x, vertex[Triangles[i].vertex[1]].y, vertex[Triangles[i].vertex[1]].z);
 880
 881         glTexCoord2f(Triangles[i].gx[2], Triangles[i].gy[2]);
 882         if (color)
 883             glColor3f(normals[Triangles[i].vertex[2]].x, normals[Triangles[i].vertex[2]].y, normals[Triangles[i].vertex[2]].z);
 884         if (!color && !flat)
 885             glNormal3f(normals[Triangles[i].vertex[2]].x, normals[Triangles[i].vertex[2]].y, normals[Triangles[i].vertex[2]].z);
 886         if (!color && flat)
 887             glNormal3f(facenormals[i].x, facenormals[i].y, facenormals[i].y);
 888         glVertex3f(vertex[Triangles[i].vertex[2]].x, vertex[Triangles[i].vertex[2]].y, vertex[Triangles[i].vertex[2]].z);
 889     }
 890     glEnd();
 891 }
 892
 893 void Model::draw()
 894 {
 895     if (type != normaltype && type != decalstype)
 896         return;
 897
 898     glEnableClientState(GL_NORMAL_ARRAY);
 899     glEnableClientState(GL_VERTEX_ARRAY);
 900     glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 901
 902     if (!color)
 903         glInterleavedArrays( GL_T2F_N3F_V3F, 8 * sizeof(GLfloat), &vArray[0]);
 904     if (color)
 905         glInterleavedArrays( GL_T2F_C3F_V3F, 8 * sizeof(GLfloat), &vArray[0]);
 906     textureptr.bind();
 907
 908     glDrawArrays(GL_TRIANGLES, 0, TriangleNum * 3);
 909
 910     if (!color)
 911         glDisableClientState(GL_NORMAL_ARRAY);
 912     if (color)
 913         glDisableClientState(GL_COLOR_ARRAY);
 914     glDisableClientState(GL_VERTEX_ARRAY);
 915     glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 916 }
 917
 918 //TODO: phase out in favor of Texture
 919 void Model::drawdifftex(GLuint texture)
 920 {
 921     glEnableClientState(GL_NORMAL_ARRAY);
 922     glEnableClientState(GL_VERTEX_ARRAY);
 923     glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 924     if (!color)
 925         glInterleavedArrays( GL_T2F_N3F_V3F, 8 * sizeof(GLfloat), &vArray[0]);
 926     if (color)
 927         glInterleavedArrays( GL_T2F_C3F_V3F, 8 * sizeof(GLfloat), &vArray[0]);
 928
 929     glBindTexture(GL_TEXTURE_2D, (unsigned long)texture);
 930     glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
 931     glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
 932
 933
 934 #ifndef WIN32
 935     glLockArraysEXT( 0, TriangleNum * 3);
 936 #endif
 937     glDrawArrays(GL_TRIANGLES, 0, TriangleNum * 3);
 938 #ifndef WIN32
 939     glUnlockArraysEXT();
 940 #endif
 941
 942
 943     if (!color)
 944         glDisableClientState(GL_NORMAL_ARRAY);
 945     if (color)
 946         glDisableClientState(GL_COLOR_ARRAY);
 947     glDisableClientState(GL_VERTEX_ARRAY);
 948     glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 949 }
 950
 951 void Model::drawdifftex(Texture texture)
 952 {
 953     glEnableClientState(GL_NORMAL_ARRAY);
 954     glEnableClientState(GL_VERTEX_ARRAY);
 955     glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 956     if (!color)
 957         glInterleavedArrays( GL_T2F_N3F_V3F, 8 * sizeof(GLfloat), &vArray[0]);
 958     if (color)
 959         glInterleavedArrays( GL_T2F_C3F_V3F, 8 * sizeof(GLfloat), &vArray[0]);
 960
 961     texture.bind();
 962     glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
 963     glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
 964
 965
 966 #ifndef WIN32
 967     glLockArraysEXT( 0, TriangleNum * 3);
 968 #endif
 969     glDrawArrays(GL_TRIANGLES, 0, TriangleNum * 3);
 970 #ifndef WIN32
 971     glUnlockArraysEXT();
 972 #endif
 973
 974
 975     if (!color)
 976         glDisableClientState(GL_NORMAL_ARRAY);
 977     if (color)
 978         glDisableClientState(GL_COLOR_ARRAY);
 979     glDisableClientState(GL_VERTEX_ARRAY);
 980     glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 981 }
 982
 983 void Model::drawdecals(Texture shadowtexture, Texture bloodtexture, Texture bloodtexture2, Texture breaktexture)
 984 {
 985     if (decals) {
 986         if (type != decalstype)
 987             return;
 988         static int i;
 989         static int lasttype;
 990         static bool blend;
 991
 992         blend = 1;
 993
 994         lasttype = -1;
 995         glEnable(GL_BLEND);
 996         glDisable(GL_LIGHTING);
 997         glDisable(GL_CULL_FACE);
 998         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 999         glDepthMask(0);
1000         if (numdecals > max_model_decals)
1001             numdecals = max_model_decals;
1002         for (i = 0; i < numdecals; i++) {
1003             if (decaltype[i] == blooddecalfast && decalalivetime[i] < 2)
1004                 decalalivetime[i] = 2;
1005
1006             if (decaltype[i] == shadowdecal && decaltype[i] != lasttype) {
1007                 shadowtexture.bind();
1008                 if (!blend) {
1009                     blend = 1;
1010                     glAlphaFunc(GL_GREATER, 0.0001);
1011                     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1012                 }
1013             }
1014             if (decaltype[i] == breakdecal && decaltype[i] != lasttype) {
1015                 breaktexture.bind();
1016                 if (!blend) {
1017                     blend = 1;
1018                     glAlphaFunc(GL_GREATER, 0.0001);
1019                     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1020                 }
1021             }
1022             if ((decaltype[i] == blooddecal || decaltype[i] == blooddecalslow) && decaltype[i] != lasttype) {
1023                 bloodtexture.bind();
1024                 if (blend) {
1025                     blend = 0;
1026                     glAlphaFunc(GL_GREATER, 0.15);
1027                     glBlendFunc(GL_ONE, GL_ZERO);
1028                 }
1029             }
1030             if ((decaltype[i] == blooddecalfast) && decaltype[i] != lasttype) {
1031                 bloodtexture2.bind();
1032                 if (blend) {
1033                     blend = 0;
1034                     glAlphaFunc(GL_GREATER, 0.15);
1035                     glBlendFunc(GL_ONE, GL_ZERO);
1036                 }
1037             }
1038             if (decaltype[i] == shadowdecal) {
1039                 glColor4f(1, 1, 1, decalopacity[i]);
1040             }
1041             if (decaltype[i] == breakdecal) {
1042                 glColor4f(1, 1, 1, decalopacity[i]);
1043                 if (decalalivetime[i] > 58)
1044                     glColor4f(1, 1, 1, decalopacity[i] * (60 - decalalivetime[i]) / 2);
1045             }
1046             if ((decaltype[i] == blooddecal || decaltype[i] == blooddecalfast || decaltype[i] == blooddecalslow)) {
1047                 glColor4f(1, 1, 1, decalopacity[i]);
1048                 if (decalalivetime[i] < 4)
1049                     glColor4f(1, 1, 1, decalopacity[i]*decalalivetime[i]*.25);
1050                 if (decalalivetime[i] > 58)
1051                     glColor4f(1, 1, 1, decalopacity[i] * (60 - decalalivetime[i]) / 2);
1052             }
1053             lasttype = decaltype[i];
1054             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
1055             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
1056
1057             glMatrixMode(GL_MODELVIEW);
1058             glPushMatrix();
1059             glBegin(GL_TRIANGLES);
1060             for (int j = 0; j < 3; j++) {
1061                 glTexCoord2f(decaltexcoords[i][j][0], decaltexcoords[i][j][1]);
1062                 glVertex3f(decalvertex[i][j].x, decalvertex[i][j].y, decalvertex[i][j].z);
1063             }
1064             glEnd();
1065             glPopMatrix();
1066         }
1067         for (i = numdecals - 1; i >= 0; i--) {
1068             decalalivetime[i] += multiplier;
1069             if (decaltype[i] == blooddecalslow)
1070                 decalalivetime[i] -= multiplier * 2 / 3;
1071             if (decaltype[i] == blooddecalfast)
1072                 decalalivetime[i] += multiplier * 4;
1073             if (decaltype[i] == shadowdecal)
1074                 DeleteDecal(i);
1075             if ((decaltype[i] == blooddecal || decaltype[i] == blooddecalfast || decaltype[i] == blooddecalslow) && decalalivetime[i] >= 60)
1076                 DeleteDecal(i);
1077         }
1078         glAlphaFunc(GL_GREATER, 0.0001);
1079         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1080     }
1081 }
1082
1083 void Model::DeleteDecal(int which)
1084 {
1085     if (decals) {
1086         if (type != decalstype)
1087             return;
1088         decaltype[which] = decaltype[numdecals - 1];
1089         decalposition[which] = decalposition[numdecals - 1];
1090         for (int i = 0; i < 3; i++) {
1091             decalvertex[which][i] = decalvertex[numdecals - 1][i];
1092             decaltexcoords[which][i][0] = decaltexcoords[numdecals - 1][i][0];
1093             decaltexcoords[which][i][1] = decaltexcoords[numdecals - 1][i][1];
1094         }
1095         decalrotation[which] = decalrotation[numdecals - 1];
1096         decalalivetime[which] = decalalivetime[numdecals - 1];
1097         decalopacity[which] = decalopacity[numdecals - 1];
1098         numdecals--;
1099     }
1100 }
1101
1102 void Model::MakeDecal(int atype, XYZ *where, float *size, float *opacity, float *rotation)
1103 {
1104     if (decals) {
1105         if (type != decalstype)
1106             return;
1107
1108         static float placex, placez;
1109         static XYZ rot;
1110         static float distance;
1111         static int i, j;
1112
1113         if (*opacity > 0)
1114             if (distsq(where, &boundingspherecenter) < (boundingsphereradius + *size) * (boundingsphereradius + *size))
1115                 for (i = 0; i < TriangleNum; i++) {
1116                     if (facenormals[i].y < -.1 && (vertex[Triangles[i].vertex[0]].y < where->y || vertex[Triangles[i].vertex[1]].y < where->y || vertex[Triangles[i].vertex[2]].y < where->y)) {
1117                         decalposition[numdecals] = *where;
1118                         decaltype[numdecals] = atype;
1119                         decalrotation[numdecals] = *rotation;
1120                         decalalivetime[numdecals] = 0;
1121                         distance = abs(((facenormals[i].x * where->x) + (facenormals[i].y * where->y) + (facenormals[i].z * where->z) - ((facenormals[i].x * vertex[Triangles[i].vertex[0]].x) + (facenormals[i].y * vertex[Triangles[i].vertex[0]].y) + (facenormals[i].z * vertex[Triangles[i].vertex[0]].z))) / facenormals[i].y);
1122                         decalopacity[numdecals] = *opacity - distance / 10;
1123
1124                         if (decalopacity[numdecals > 0]) {
1125                             placex = vertex[Triangles[i].vertex[0]].x;
1126                             placez = vertex[Triangles[i].vertex[0]].z;
1127
1128                             decaltexcoords[numdecals][0][0] = (placex - where->x) / (*size) / 2 + .5;
1129                             decaltexcoords[numdecals][0][1] = (placez - where->z) / (*size) / 2 + .5;
1130
1131                             decalvertex[numdecals][0].x = placex;
1132                             decalvertex[numdecals][0].z = placez;
1133                             decalvertex[numdecals][0].y = vertex[Triangles[i].vertex[0]].y;
1134
1135
1136                             placex = vertex[Triangles[i].vertex[1]].x;
1137                             placez = vertex[Triangles[i].vertex[1]].z;
1138
1139                             decaltexcoords[numdecals][1][0] = (placex - where->x) / (*size) / 2 + .5;
1140                             decaltexcoords[numdecals][1][1] = (placez - where->z) / (*size) / 2 + .5;
1141
1142                             decalvertex[numdecals][1].x = placex;
1143                             decalvertex[numdecals][1].z = placez;
1144                             decalvertex[numdecals][1].y = vertex[Triangles[i].vertex[1]].y;
1145
1146
1147                             placex = vertex[Triangles[i].vertex[2]].x;
1148                             placez = vertex[Triangles[i].vertex[2]].z;
1149
1150                             decaltexcoords[numdecals][2][0] = (placex - where->x) / (*size) / 2 + .5;
1151                             decaltexcoords[numdecals][2][1] = (placez - where->z) / (*size) / 2 + .5;
1152
1153                             decalvertex[numdecals][2].x = placex;
1154                             decalvertex[numdecals][2].z = placez;
1155                             decalvertex[numdecals][2].y = vertex[Triangles[i].vertex[2]].y;
1156
1157                             if (!(decaltexcoords[numdecals][0][0] < 0 && decaltexcoords[numdecals][1][0] < 0 && decaltexcoords[numdecals][2][0] < 0))
1158                                 if (!(decaltexcoords[numdecals][0][1] < 0 && decaltexcoords[numdecals][1][1] < 0 && decaltexcoords[numdecals][2][1] < 0))
1159                                     if (!(decaltexcoords[numdecals][0][0] > 1 && decaltexcoords[numdecals][1][0] > 1 && decaltexcoords[numdecals][2][0] > 1))
1160                                         if (!(decaltexcoords[numdecals][0][1] > 1 && decaltexcoords[numdecals][1][1] > 1 && decaltexcoords[numdecals][2][1] > 1)) {
1161                                             if (decalrotation[numdecals]) {
1162                                                 for (j = 0; j < 3; j++) {
1163                                                     rot.y = 0;
1164                                                     rot.x = decaltexcoords[numdecals][j][0] - .5;
1165                                                     rot.z = decaltexcoords[numdecals][j][1] - .5;
1166                                                     rot = DoRotation(rot, 0, -decalrotation[numdecals], 0);
1167                                                     decaltexcoords[numdecals][j][0] = rot.x + .5;
1168                                                     decaltexcoords[numdecals][j][1] = rot.z + .5;
1169                                                 }
1170                                             }
1171                                             if (numdecals < max_model_decals - 1)
1172                                                 numdecals++;
1173                                         }
1174                         }
1175                     }
1176                 }
1177     }
1178 }
1179
1180 void Model::MakeDecal(int atype, XYZ where, float size, float opacity, float rotation)
1181 {
1182     if (decals) {
1183         if (type != decalstype)
1184             return;
1185
1186         static float placex, placez;
1187         static XYZ rot;
1188         static float distance;
1189         static int i, j;
1190
1191         if (opacity > 0)
1192             if (distsq(&where, &boundingspherecenter) < (boundingsphereradius + size) * (boundingsphereradius + size))
1193                 for (i = 0; i < TriangleNum; i++) {
1194                     distance = abs(((facenormals[i].x * where.x) + (facenormals[i].y * where.y) + (facenormals[i].z * where.z) - ((facenormals[i].x * vertex[Triangles[i].vertex[0]].x) + (facenormals[i].y * vertex[Triangles[i].vertex[0]].y) + (facenormals[i].z * vertex[Triangles[i].vertex[0]].z))));
1195                     if (distance < .02 && abs(facenormals[i].y) > abs(facenormals[i].x) && abs(facenormals[i].y) > abs(facenormals[i].z)) {
1196                         decalposition[numdecals] = where;
1197                         decaltype[numdecals] = atype;
1198                         decalrotation[numdecals] = rotation;
1199                         decalalivetime[numdecals] = 0;
1200                         decalopacity[numdecals] = opacity - distance / 10;
1201
1202                         if (decalopacity[numdecals > 0]) {
1203                             placex = vertex[Triangles[i].vertex[0]].x;
1204                             placez = vertex[Triangles[i].vertex[0]].z;
1205
1206                             decaltexcoords[numdecals][0][0] = (placex - where.x) / (size) / 2 + .5;
1207                             decaltexcoords[numdecals][0][1] = (placez - where.z) / (size) / 2 + .5;
1208
1209                             decalvertex[numdecals][0].x = placex;
1210                             decalvertex[numdecals][0].z = placez;
1211                             decalvertex[numdecals][0].y = vertex[Triangles[i].vertex[0]].y;
1212
1213
1214                             placex = vertex[Triangles[i].vertex[1]].x;
1215                             placez = vertex[Triangles[i].vertex[1]].z;
1216
1217                             decaltexcoords[numdecals][1][0] = (placex - where.x) / (size) / 2 + .5;
1218                             decaltexcoords[numdecals][1][1] = (placez - where.z) / (size) / 2 + .5;
1219
1220                             decalvertex[numdecals][1].x = placex;
1221                             decalvertex[numdecals][1].z = placez;
1222                             decalvertex[numdecals][1].y = vertex[Triangles[i].vertex[1]].y;
1223
1224
1225                             placex = vertex[Triangles[i].vertex[2]].x;
1226                             placez = vertex[Triangles[i].vertex[2]].z;
1227
1228                             decaltexcoords[numdecals][2][0] = (placex - where.x) / (size) / 2 + .5;
1229                             decaltexcoords[numdecals][2][1] = (placez - where.z) / (size) / 2 + .5;
1230
1231                             decalvertex[numdecals][2].x = placex;
1232                             decalvertex[numdecals][2].z = placez;
1233                             decalvertex[numdecals][2].y = vertex[Triangles[i].vertex[2]].y;
1234
1235                             if (!(decaltexcoords[numdecals][0][0] < 0 && decaltexcoords[numdecals][1][0] < 0 && decaltexcoords[numdecals][2][0] < 0))
1236                                 if (!(decaltexcoords[numdecals][0][1] < 0 && decaltexcoords[numdecals][1][1] < 0 && decaltexcoords[numdecals][2][1] < 0))
1237                                     if (!(decaltexcoords[numdecals][0][0] > 1 && decaltexcoords[numdecals][1][0] > 1 && decaltexcoords[numdecals][2][0] > 1))
1238                                         if (!(decaltexcoords[numdecals][0][1] > 1 && decaltexcoords[numdecals][1][1] > 1 && decaltexcoords[numdecals][2][1] > 1)) {
1239                                             if (decalrotation[numdecals]) {
1240                                                 for (j = 0; j < 3; j++) {
1241                                                     rot.y = 0;
1242                                                     rot.x = decaltexcoords[numdecals][j][0] - .5;
1243                                                     rot.z = decaltexcoords[numdecals][j][1] - .5;
1244                                                     rot = DoRotation(rot, 0, -decalrotation[numdecals], 0);
1245                                                     decaltexcoords[numdecals][j][0] = rot.x + .5;
1246                                                     decaltexcoords[numdecals][j][1] = rot.z + .5;
1247                                                 }
1248                                             }
1249                                             if (numdecals < max_model_decals - 1)
1250                                                 numdecals++;
1251                                         }
1252                         }
1253                     } else if (distance < .02 && abs(facenormals[i].x) > abs(facenormals[i].y) && abs(facenormals[i].x) > abs(facenormals[i].z)) {
1254                         decalposition[numdecals] = where;
1255                         decaltype[numdecals] = atype;
1256                         decalrotation[numdecals] = rotation;
1257                         decalalivetime[numdecals] = 0;
1258                         decalopacity[numdecals] = opacity - distance / 10;
1259
1260                         if (decalopacity[numdecals > 0]) {
1261                             placex = vertex[Triangles[i].vertex[0]].y;
1262                             placez = vertex[Triangles[i].vertex[0]].z;
1263
1264                             decaltexcoords[numdecals][0][0] = (placex - where.y) / (size) / 2 + .5;
1265                             decaltexcoords[numdecals][0][1] = (placez - where.z) / (size) / 2 + .5;
1266
1267                             decalvertex[numdecals][0].x = vertex[Triangles[i].vertex[0]].x;
1268                             decalvertex[numdecals][0].z = placez;
1269                             decalvertex[numdecals][0].y = placex;
1270
1271
1272                             placex = vertex[Triangles[i].vertex[1]].y;
1273                             placez = vertex[Triangles[i].vertex[1]].z;
1274
1275                             decaltexcoords[numdecals][1][0] = (placex - where.y) / (size) / 2 + .5;
1276                             decaltexcoords[numdecals][1][1] = (placez - where.z) / (size) / 2 + .5;
1277
1278                             decalvertex[numdecals][1].x = vertex[Triangles[i].vertex[1]].x;
1279                             decalvertex[numdecals][1].z = placez;
1280                             decalvertex[numdecals][1].y = placex;
1281
1282
1283                             placex = vertex[Triangles[i].vertex[2]].y;
1284                             placez = vertex[Triangles[i].vertex[2]].z;
1285
1286                             decaltexcoords[numdecals][2][0] = (placex - where.y) / (size) / 2 + .5;
1287                             decaltexcoords[numdecals][2][1] = (placez - where.z) / (size) / 2 + .5;
1288
1289                             decalvertex[numdecals][2].x = vertex[Triangles[i].vertex[2]].x;
1290                             decalvertex[numdecals][2].z = placez;
1291                             decalvertex[numdecals][2].y = placex;
1292
1293                             if (!(decaltexcoords[numdecals][0][0] < 0 && decaltexcoords[numdecals][1][0] < 0 && decaltexcoords[numdecals][2][0] < 0))
1294                                 if (!(decaltexcoords[numdecals][0][1] < 0 && decaltexcoords[numdecals][1][1] < 0 && decaltexcoords[numdecals][2][1] < 0))
1295                                     if (!(decaltexcoords[numdecals][0][0] > 1 && decaltexcoords[numdecals][1][0] > 1 && decaltexcoords[numdecals][2][0] > 1))
1296                                         if (!(decaltexcoords[numdecals][0][1] > 1 && decaltexcoords[numdecals][1][1] > 1 && decaltexcoords[numdecals][2][1] > 1)) {
1297                                             if (decalrotation[numdecals]) {
1298                                                 for (j = 0; j < 3; j++) {
1299                                                     rot.y = 0;
1300                                                     rot.x = decaltexcoords[numdecals][j][0] - .5;
1301                                                     rot.z = decaltexcoords[numdecals][j][1] - .5;
1302                                                     rot = DoRotation(rot, 0, -decalrotation[numdecals], 0);
1303                                                     decaltexcoords[numdecals][j][0] = rot.x + .5;
1304                                                     decaltexcoords[numdecals][j][1] = rot.z + .5;
1305                                                 }
1306                                             }
1307                                             if (numdecals < max_model_decals - 1)
1308                                                 numdecals++;
1309                                         }
1310                         }
1311                     } else if (distance < .02 && abs(facenormals[i].z) > abs(facenormals[i].y) && abs(facenormals[i].z) > abs(facenormals[i].x)) {
1312                         decalposition[numdecals] = where;
1313                         decaltype[numdecals] = atype;
1314                         decalrotation[numdecals] = rotation;
1315                         decalalivetime[numdecals] = 0;
1316                         decalopacity[numdecals] = opacity - distance / 10;
1317
1318                         if (decalopacity[numdecals > 0]) {
1319                             placex = vertex[Triangles[i].vertex[0]].x;
1320                             placez = vertex[Triangles[i].vertex[0]].y;
1321
1322                             decaltexcoords[numdecals][0][0] = (placex - where.x) / (size) / 2 + .5;
1323                             decaltexcoords[numdecals][0][1] = (placez - where.y) / (size) / 2 + .5;
1324
1325                             decalvertex[numdecals][0].x = placex;
1326                             decalvertex[numdecals][0].z = vertex[Triangles[i].vertex[0]].z;
1327                             decalvertex[numdecals][0].y = placez;
1328
1329
1330                             placex = vertex[Triangles[i].vertex[1]].x;
1331                             placez = vertex[Triangles[i].vertex[1]].y;
1332
1333                             decaltexcoords[numdecals][1][0] = (placex - where.x) / (size) / 2 + .5;
1334                             decaltexcoords[numdecals][1][1] = (placez - where.y) / (size) / 2 + .5;
1335
1336                             decalvertex[numdecals][1].x = placex;
1337                             decalvertex[numdecals][1].z = vertex[Triangles[i].vertex[1]].z;
1338                             decalvertex[numdecals][1].y = placez;
1339
1340
1341                             placex = vertex[Triangles[i].vertex[2]].x;
1342                             placez = vertex[Triangles[i].vertex[2]].y;
1343
1344                             decaltexcoords[numdecals][2][0] = (placex - where.x) / (size) / 2 + .5;
1345                             decaltexcoords[numdecals][2][1] = (placez - where.y) / (size) / 2 + .5;
1346
1347                             decalvertex[numdecals][2].x = placex;
1348                             decalvertex[numdecals][2].z = vertex[Triangles[i].vertex[2]].z;
1349                             decalvertex[numdecals][2].y = placez;
1350
1351                             if (!(decaltexcoords[numdecals][0][0] < 0 && decaltexcoords[numdecals][1][0] < 0 && decaltexcoords[numdecals][2][0] < 0))
1352                                 if (!(decaltexcoords[numdecals][0][1] < 0 && decaltexcoords[numdecals][1][1] < 0 && decaltexcoords[numdecals][2][1] < 0))
1353                                     if (!(decaltexcoords[numdecals][0][0] > 1 && decaltexcoords[numdecals][1][0] > 1 && decaltexcoords[numdecals][2][0] > 1))
1354                                         if (!(decaltexcoords[numdecals][0][1] > 1 && decaltexcoords[numdecals][1][1] > 1 && decaltexcoords[numdecals][2][1] > 1)) {
1355                                             if (decalrotation[numdecals]) {
1356                                                 for (j = 0; j < 3; j++) {
1357                                                     rot.y = 0;
1358                                                     rot.x = decaltexcoords[numdecals][j][0] - .5;
1359                                                     rot.z = decaltexcoords[numdecals][j][1] - .5;
1360                                                     rot = DoRotation(rot, 0, -decalrotation[numdecals], 0);
1361                                                     decaltexcoords[numdecals][j][0] = rot.x + .5;
1362                                                     decaltexcoords[numdecals][j][1] = rot.z + .5;
1363                                                 }
1364                                             }
1365                                             if (numdecals < max_model_decals - 1)
1366                                                 numdecals++;
1367                                         }
1368                         }
1369                     }
1370                 }
1371     }
1372 }
1373
1374 Model::~Model()
1375 {
1376     deallocate();
1377     textureptr.destroy();
1378 }
1379
1380 void Model::deallocate()
1381 {
1382     int i = 0, j = 0;
1383
1384     if (owner)
1385         free(owner);
1386     owner = 0;
1387
1388     if (possible)
1389         free(possible);
1390     possible = 0;
1391
1392     if (vertex)
1393         free(vertex);
1394     vertex = 0;
1395
1396     if (normals)
1397         free(normals);
1398     normals = 0;
1399
1400     if (facenormals)
1401         free(facenormals);
1402     facenormals = 0;
1403
1404     if (Triangles)
1405         free(Triangles);
1406     Triangles = 0;
1407
1408     if (vArray)
1409         free(vArray);
1410     vArray = 0;
1411
1412
1413     //allow decals
1414     if (decaltexcoords) {
1415         for (i = 0; i < max_model_decals; i++) {
1416             for (j = 0; j < 3; j++) {
1417                 free(decaltexcoords[i][j]);
1418             }
1419             free(decaltexcoords[i]);
1420         }
1421         free(decaltexcoords);
1422     }
1423     decaltexcoords = 0;
1424
1425
1426     if (decalvertex) {
1427         for (i = 0; i < max_model_decals; i++) {
1428             free(decalvertex[i]);
1429         }
1430         free(decalvertex);
1431     }
1432     decalvertex = 0;
1433
1434
1435     free(decaltype);
1436     decaltype = 0;
1437
1438     free(decalopacity);
1439     decalopacity = 0;
1440
1441     free(decalrotation);
1442     decalrotation = 0;
1443
1444     free(decalalivetime);
1445     decalalivetime = 0;
1446
1447     free(decalposition);
1448     decalposition = 0;
1449
1450 }
1451
1452 Model::Model()
1453 {
1454     vertexNum = 0, TriangleNum = 0;
1455     hastexture = 0;
1456
1457     type = 0, oldtype = 0;
1458
1459     possible = 0;
1460     owner = 0;
1461     vertex = 0;
1462     normals = 0;
1463     facenormals = 0;
1464     Triangles = 0;
1465     vArray = 0;
1466
1467     memset(&modelTexture, 0, sizeof(modelTexture));
1468     numpossible = 0;
1469     color = 0;
1470
1471     boundingspherecenter = 0;
1472     boundingsphereradius = 0;
1473
1474     decaltexcoords = 0;
1475     decalvertex = 0;
1476     decaltype = 0;
1477     decalopacity = 0;
1478     decalrotation = 0;
1479     decalalivetime = 0;
1480     decalposition = 0;
1481
1482     numdecals = 0;
1483
1484     flat = 0;
1485
1486     type = nothing;
1487 }
1488