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