src/content_mapblock.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "content_mapblock.h"
  21 #include "content_mapnode.h"
  22 #include "main.h" // For g_settings and g_texturesource
  23 #include "mineral.h"
  24 #include "mapblock_mesh.h" // For MapBlock_LightColor()
  25 #include "settings.h"
  26
  27 #ifndef SERVER
  28 // Create a cuboid.
  29 //  material  - the material to use (for all 6 faces)
  30 //  collector - the MeshCollector for the resulting polygons
  31 //  pa        - texture atlas pointer for the material
  32 //  c         - vertex colour - used for all
  33 //  pos       - the position of the centre of the cuboid
  34 //  rz,ry,rz  - the radius of the cuboid in each dimension
  35 //  txc       - texture coordinates - this is a list of texture coordinates
  36 //              for the opposite corners of each face - therefore, there
  37 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  38 //              NULL to use the entire texture for each face. The order of
  39 //              the faces in the list is top-backi-right-front-left-bottom
  40 //              If you specified 0,0,1,1 for each face, that would be the
  41 //              same as passing NULL.
  42 void makeCuboid(video::SMaterial &material, MeshCollector *collector,
  43         AtlasPointer* pa, video::SColor &c,
  44         v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
  45 {
  46         f32 tu0=pa->x0();
  47         f32 tu1=pa->x1();
  48         f32 tv0=pa->y0();
  49         f32 tv1=pa->y1();
  50         f32 txus=tu1-tu0;
  51         f32 txvs=tv1-tv0;
  52
  53         video::S3DVertex v[4] =
  54         {
  55                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
  56                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
  57                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
  58                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
  59         };
  60
  61         for(int i=0;i<6;i++)
  62         {
  63                 switch(i)
  64                 {
  65                         case 0: // top
  66                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  67                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  68                                 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
  69                                 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
  70                                 break;
  71                         case 1: // back
  72                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  73                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  74                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  75                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  76                                 break;
  77                         case 2: //right
  78                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  79                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  80                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  81                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  82                                 break;
  83                         case 3: // front
  84                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  85                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  86                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  87                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  88                                 break;
  89                         case 4: // left
  90                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  91                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  92                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  93                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  94                                 break;
  95                         case 5: // bottom
  96                                 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
  97                                 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
  98                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  99                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
 100                                 break;
 101                 }
 102
 103                 if(txc!=NULL)
 104                 {
 105                         v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
 106                         v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
 107                         v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
 108                         v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
 109                         txc+=4;
 110                 }
 111
 112                 for(u16 i=0; i<4; i++)
 113                         v[i].Pos += pos;
 114                 u16 indices[] = {0,1,2,2,3,0};
 115                 collector->append(material, v, 4, indices, 6);
 116
 117         }
 118
 119 }
 120 #endif
 121
 122 #ifndef SERVER
 123 void mapblock_mesh_generate_special(MeshMakeData *data,
 124                 MeshCollector &collector)
 125 {
 126         // 0ms
 127         //TimeTaker timer("mapblock_mesh_generate_special()");
 128
 129         /*
 130                 Some settings
 131         */
 132         bool new_style_water = g_settings->getBool("new_style_water");
 133         bool new_style_leaves = g_settings->getBool("new_style_leaves");
 134         //bool smooth_lighting = g_settings->getBool("smooth_lighting");
 135         bool invisible_stone = g_settings->getBool("invisible_stone");
 136
 137         float node_liquid_level = 1.0;
 138         if(new_style_water)
 139                 node_liquid_level = 0.85;
 140
 141         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 142
 143         // New-style leaves material
 144         video::SMaterial material_leaves1;
 145         material_leaves1.setFlag(video::EMF_LIGHTING, false);
 146         material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
 147         material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
 148         material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 149         AtlasPointer pa_leaves1 = g_texturesource->getTexture(
 150                         g_texturesource->getTextureId("leaves.png"));
 151         material_leaves1.setTexture(0, pa_leaves1.atlas);
 152
 153         // Glass material
 154         video::SMaterial material_glass;
 155         material_glass.setFlag(video::EMF_LIGHTING, false);
 156         material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
 157         material_glass.setFlag(video::EMF_FOG_ENABLE, true);
 158         material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 159         AtlasPointer pa_glass = g_texturesource->getTexture(
 160                         g_texturesource->getTextureId("glass.png"));
 161         material_glass.setTexture(0, pa_glass.atlas);
 162
 163         // Wood material
 164         video::SMaterial material_wood;
 165         material_wood.setFlag(video::EMF_LIGHTING, false);
 166         material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
 167         material_wood.setFlag(video::EMF_FOG_ENABLE, true);
 168         material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 169         AtlasPointer pa_wood = g_texturesource->getTexture(
 170                         g_texturesource->getTextureId("wood.png"));
 171         material_wood.setTexture(0, pa_wood.atlas);
 172
 173         // General ground material for special output
 174         // Texture is modified just before usage
 175         video::SMaterial material_general;
 176         material_general.setFlag(video::EMF_LIGHTING, false);
 177         material_general.setFlag(video::EMF_BILINEAR_FILTER, false);
 178         material_general.setFlag(video::EMF_FOG_ENABLE, true);
 179         material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 180
 181
 182         // Papyrus material
 183         video::SMaterial material_papyrus;
 184         material_papyrus.setFlag(video::EMF_LIGHTING, false);
 185         material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
 186         material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
 187         material_papyrus.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 188         AtlasPointer pa_papyrus = g_texturesource->getTexture(
 189                         g_texturesource->getTextureId("papyrus.png"));
 190         material_papyrus.setTexture(0, pa_papyrus.atlas);
 191
 192         // Apple material
 193         video::SMaterial material_apple;
 194         material_apple.setFlag(video::EMF_LIGHTING, false);
 195         material_apple.setFlag(video::EMF_BILINEAR_FILTER, false);
 196         material_apple.setFlag(video::EMF_FOG_ENABLE, true);
 197         material_apple.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 198         AtlasPointer pa_apple = g_texturesource->getTexture(
 199                         g_texturesource->getTextureId("apple.png"));
 200         material_apple.setTexture(0, pa_apple.atlas);
 201
 202
 203         // Sapling material
 204         video::SMaterial material_sapling;
 205         material_sapling.setFlag(video::EMF_LIGHTING, false);
 206         material_sapling.setFlag(video::EMF_BILINEAR_FILTER, false);
 207         material_sapling.setFlag(video::EMF_FOG_ENABLE, true);
 208         material_sapling.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 209         AtlasPointer pa_sapling = g_texturesource->getTexture(
 210                         g_texturesource->getTextureId("sapling.png"));
 211         material_sapling.setTexture(0, pa_sapling.atlas);
 212
 213
 214         // junglegrass material
 215         video::SMaterial material_junglegrass;
 216         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 217         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 218         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 219         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 220         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 221                         g_texturesource->getTextureId("junglegrass.png"));
 222         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 223
 224         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 225         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 226         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 227         {
 228                 v3s16 p(x,y,z);
 229
 230                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 231
 232                 /*
 233                         Add torches to mesh
 234                 */
 235                 if(n.getContent() == CONTENT_TORCH)
 236                 {
 237                         v3s16 dir = unpackDir(n.param2);
 238
 239                         const char *texturename = "torch.png";
 240                         if(dir == v3s16(0,-1,0)){
 241                                 texturename = "torch_on_floor.png";
 242                         } else if(dir == v3s16(0,1,0)){
 243                                 texturename = "torch_on_ceiling.png";
 244                         // For backwards compatibility
 245                         } else if(dir == v3s16(0,0,0)){
 246                                 texturename = "torch_on_floor.png";
 247                         } else {
 248                                 texturename = "torch.png";
 249                         }
 250
 251                         AtlasPointer ap = g_texturesource->getTexture(texturename);
 252
 253                         // Set material
 254                         video::SMaterial material;
 255                         material.setFlag(video::EMF_LIGHTING, false);
 256                         material.setFlag(video::EMF_BACK_FACE_CULLING, true);
 257                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 258                         material.setFlag(video::EMF_FOG_ENABLE, true);
 259                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 260                         material.MaterialType
 261                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 262                         material.setTexture(0, ap.atlas);
 263
 264                         video::SColor c(255,255,255,255);
 265
 266                         // Wall at X+ of node
 267                         video::S3DVertex vertices[4] =
 268                         {
 269                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 270                                                 ap.x0(), ap.y1()),
 271                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 272                                                 ap.x1(), ap.y1()),
 273                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 274                                                 ap.x1(), ap.y0()),
 275                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 276                                                 ap.x0(), ap.y0()),
 277                         };
 278
 279                         for(s32 i=0; i<4; i++)
 280                         {
 281                                 if(dir == v3s16(1,0,0))
 282                                         vertices[i].Pos.rotateXZBy(0);
 283                                 if(dir == v3s16(-1,0,0))
 284                                         vertices[i].Pos.rotateXZBy(180);
 285                                 if(dir == v3s16(0,0,1))
 286                                         vertices[i].Pos.rotateXZBy(90);
 287                                 if(dir == v3s16(0,0,-1))
 288                                         vertices[i].Pos.rotateXZBy(-90);
 289                                 if(dir == v3s16(0,-1,0))
 290                                         vertices[i].Pos.rotateXZBy(45);
 291                                 if(dir == v3s16(0,1,0))
 292                                         vertices[i].Pos.rotateXZBy(-45);
 293
 294                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 295                         }
 296
 297                         u16 indices[] = {0,1,2,2,3,0};
 298                         // Add to mesh collector
 299                         collector.append(material, vertices, 4, indices, 6);
 300                 }
 301                 /*
 302                         Signs on walls
 303                 */
 304                 else if(n.getContent() == CONTENT_SIGN_WALL)
 305                 {
 306                         AtlasPointer ap = g_texturesource->getTexture("sign_wall.png");
 307
 308                         // Set material
 309                         video::SMaterial material;
 310                         material.setFlag(video::EMF_LIGHTING, false);
 311                         material.setFlag(video::EMF_BACK_FACE_CULLING, true);
 312                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 313                         material.setFlag(video::EMF_FOG_ENABLE, true);
 314                         material.MaterialType
 315                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 316                         material.setTexture(0, ap.atlas);
 317
 318                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 319                         video::SColor c = MapBlock_LightColor(255, l);
 320
 321                         float d = (float)BS/16;
 322                         // Wall at X+ of node
 323                         video::S3DVertex vertices[4] =
 324                         {
 325                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
 326                                                 ap.x0(), ap.y1()),
 327                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
 328                                                 ap.x1(), ap.y1()),
 329                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
 330                                                 ap.x1(), ap.y0()),
 331                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
 332                                                 ap.x0(), ap.y0()),
 333                         };
 334
 335                         v3s16 dir = unpackDir(n.param2);
 336
 337                         for(s32 i=0; i<4; i++)
 338                         {
 339                                 if(dir == v3s16(1,0,0))
 340                                         vertices[i].Pos.rotateXZBy(0);
 341                                 if(dir == v3s16(-1,0,0))
 342                                         vertices[i].Pos.rotateXZBy(180);
 343                                 if(dir == v3s16(0,0,1))
 344                                         vertices[i].Pos.rotateXZBy(90);
 345                                 if(dir == v3s16(0,0,-1))
 346                                         vertices[i].Pos.rotateXZBy(-90);
 347                                 if(dir == v3s16(0,-1,0))
 348                                         vertices[i].Pos.rotateXYBy(-90);
 349                                 if(dir == v3s16(0,1,0))
 350                                         vertices[i].Pos.rotateXYBy(90);
 351
 352                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 353                         }
 354
 355                         u16 indices[] = {0,1,2,2,3,0};
 356                         // Add to mesh collector
 357                         collector.append(material, vertices, 4, indices, 6);
 358                 }
 359                 /*
 360                         Add flowing liquid to mesh
 361                 */
 362                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 363                 {
 364                         assert(content_features(n).special_material);
 365                         video::SMaterial &liquid_material =
 366                                         *content_features(n).special_material;
 367                         assert(content_features(n).special_atlas);
 368                         AtlasPointer &pa_liquid1 =
 369                                         *content_features(n).special_atlas;
 370
 371                         bool top_is_same_liquid = false;
 372                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 373                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 374                         content_t c_source = content_features(n).liquid_alternative_source;
 375                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 376                                 top_is_same_liquid = true;
 377
 378                         u8 l = 0;
 379                         // Use the light of the node on top if possible
 380                         if(content_features(ntop).param_type == CPT_LIGHT)
 381                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 382                         // Otherwise use the light of this node (the liquid)
 383                         else
 384                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 385                         video::SColor c = MapBlock_LightColor(
 386                                         content_features(n).vertex_alpha, l);
 387
 388                         // Neighbor liquid levels (key = relative position)
 389                         // Includes current node
 390                         core::map<v3s16, f32> neighbor_levels;
 391                         core::map<v3s16, content_t> neighbor_contents;
 392                         core::map<v3s16, u8> neighbor_flags;
 393                         const u8 neighborflag_top_is_same_liquid = 0x01;
 394                         v3s16 neighbor_dirs[9] = {
 395                                 v3s16(0,0,0),
 396                                 v3s16(0,0,1),
 397                                 v3s16(0,0,-1),
 398                                 v3s16(1,0,0),
 399                                 v3s16(-1,0,0),
 400                                 v3s16(1,0,1),
 401                                 v3s16(-1,0,-1),
 402                                 v3s16(1,0,-1),
 403                                 v3s16(-1,0,1),
 404                         };
 405                         for(u32 i=0; i<9; i++)
 406                         {
 407                                 content_t content = CONTENT_AIR;
 408                                 float level = -0.5 * BS;
 409                                 u8 flags = 0;
 410                                 // Check neighbor
 411                                 v3s16 p2 = p + neighbor_dirs[i];
 412                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 413                                 if(n2.getContent() != CONTENT_IGNORE)
 414                                 {
 415                                         content = n2.getContent();
 416
 417                                         if(n2.getContent() == c_source)
 418                                                 level = (-0.5+node_liquid_level) * BS;
 419                                         else if(n2.getContent() == c_flowing)
 420                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 421                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 422
 423                                         // Check node above neighbor.
 424                                         // NOTE: This doesn't get executed if neighbor
 425                                         //       doesn't exist
 426                                         p2.Y += 1;
 427                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 428                                         if(n2.getContent() == c_source ||
 429                                                         n2.getContent() == c_flowing)
 430                                                 flags |= neighborflag_top_is_same_liquid;
 431                                 }
 432
 433                                 neighbor_levels.insert(neighbor_dirs[i], level);
 434                                 neighbor_contents.insert(neighbor_dirs[i], content);
 435                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 436                         }
 437
 438                         // Corner heights (average between four liquids)
 439                         f32 corner_levels[4];
 440
 441                         v3s16 halfdirs[4] = {
 442                                 v3s16(0,0,0),
 443                                 v3s16(1,0,0),
 444                                 v3s16(1,0,1),
 445                                 v3s16(0,0,1),
 446                         };
 447                         for(u32 i=0; i<4; i++)
 448                         {
 449                                 v3s16 cornerdir = halfdirs[i];
 450                                 float cornerlevel = 0;
 451                                 u32 valid_count = 0;
 452                                 u32 air_count = 0;
 453                                 for(u32 j=0; j<4; j++)
 454                                 {
 455                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 456                                         content_t content = neighbor_contents[neighbordir];
 457                                         // If top is liquid, draw starting from top of node
 458                                         if(neighbor_flags[neighbordir] &
 459                                                         neighborflag_top_is_same_liquid)
 460                                         {
 461                                                 cornerlevel = 0.5*BS;
 462                                                 valid_count = 1;
 463                                                 break;
 464                                         }
 465                                         // Source is always the same height
 466                                         else if(content == c_source)
 467                                         {
 468                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 469                                                 valid_count = 1;
 470                                                 break;
 471                                         }
 472                                         // Flowing liquid has level information
 473                                         else if(content == c_flowing)
 474                                         {
 475                                                 cornerlevel += neighbor_levels[neighbordir];
 476                                                 valid_count++;
 477                                         }
 478                                         else if(content == CONTENT_AIR)
 479                                         {
 480                                                 air_count++;
 481                                         }
 482                                 }
 483                                 if(air_count >= 2)
 484                                         cornerlevel = -0.5*BS;
 485                                 else if(valid_count > 0)
 486                                         cornerlevel /= valid_count;
 487                                 corner_levels[i] = cornerlevel;
 488                         }
 489
 490                         /*
 491                                 Generate sides
 492                         */
 493
 494                         v3s16 side_dirs[4] = {
 495                                 v3s16(1,0,0),
 496                                 v3s16(-1,0,0),
 497                                 v3s16(0,0,1),
 498                                 v3s16(0,0,-1),
 499                         };
 500                         s16 side_corners[4][2] = {
 501                                 {1, 2},
 502                                 {3, 0},
 503                                 {2, 3},
 504                                 {0, 1},
 505                         };
 506                         for(u32 i=0; i<4; i++)
 507                         {
 508                                 v3s16 dir = side_dirs[i];
 509
 510                                 /*
 511                                         If our topside is liquid and neighbor's topside
 512                                         is liquid, don't draw side face
 513                                 */
 514                                 if(top_is_same_liquid &&
 515                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 516                                         continue;
 517
 518                                 content_t neighbor_content = neighbor_contents[dir];
 519
 520                                 // Don't draw face if neighbor is not air or liquid
 521                                 if(neighbor_content != CONTENT_AIR
 522                                                 && content_liquid(neighbor_content) == false)
 523                                         continue;
 524
 525                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 526                                                 || neighbor_content == c_flowing);
 527
 528                                 // Don't draw any faces if neighbor same is liquid and top is
 529                                 // same liquid
 530                                 if(neighbor_is_same_liquid == true
 531                                                 && top_is_same_liquid == false)
 532                                         continue;
 533
 534                                 video::S3DVertex vertices[4] =
 535                                 {
 536                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 537                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 538                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 539                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 540                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 541                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 542                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 543                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 544                                 };
 545
 546                                 /*
 547                                         If our topside is liquid, set upper border of face
 548                                         at upper border of node
 549                                 */
 550                                 if(top_is_same_liquid)
 551                                 {
 552                                         vertices[2].Pos.Y = 0.5*BS;
 553                                         vertices[3].Pos.Y = 0.5*BS;
 554                                 }
 555                                 /*
 556                                         Otherwise upper position of face is corner levels
 557                                 */
 558                                 else
 559                                 {
 560                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 561                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 562                                 }
 563
 564                                 /*
 565                                         If neighbor is liquid, lower border of face is corner
 566                                         liquid levels
 567                                 */
 568                                 if(neighbor_is_same_liquid)
 569                                 {
 570                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 571                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 572                                 }
 573                                 /*
 574                                         If neighbor is not liquid, lower border of face is
 575                                         lower border of node
 576                                 */
 577                                 else
 578                                 {
 579                                         vertices[0].Pos.Y = -0.5*BS;
 580                                         vertices[1].Pos.Y = -0.5*BS;
 581                                 }
 582
 583                                 for(s32 j=0; j<4; j++)
 584                                 {
 585                                         if(dir == v3s16(0,0,1))
 586                                                 vertices[j].Pos.rotateXZBy(0);
 587                                         if(dir == v3s16(0,0,-1))
 588                                                 vertices[j].Pos.rotateXZBy(180);
 589                                         if(dir == v3s16(-1,0,0))
 590                                                 vertices[j].Pos.rotateXZBy(90);
 591                                         if(dir == v3s16(1,0,-0))
 592                                                 vertices[j].Pos.rotateXZBy(-90);
 593
 594                                         // Do this to not cause glitches when two liquids are
 595                                         // side-by-side
 596                                         if(neighbor_is_same_liquid == false){
 597                                                 vertices[j].Pos.X *= 0.98;
 598                                                 vertices[j].Pos.Z *= 0.98;
 599                                         }
 600
 601                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 602                                 }
 603
 604                                 u16 indices[] = {0,1,2,2,3,0};
 605                                 // Add to mesh collector
 606                                 collector.append(liquid_material, vertices, 4, indices, 6);
 607                         }
 608
 609                         /*
 610                                 Generate top side, if appropriate
 611                         */
 612
 613                         if(top_is_same_liquid == false)
 614                         {
 615                                 video::S3DVertex vertices[4] =
 616                                 {
 617                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 618                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 619                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 620                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 621                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 622                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 623                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 624                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 625                                 };
 626
 627                                 // This fixes a strange bug
 628                                 s32 corner_resolve[4] = {3,2,1,0};
 629
 630                                 for(s32 i=0; i<4; i++)
 631                                 {
 632                                         //vertices[i].Pos.Y += liquid_level;
 633                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 634                                         s32 j = corner_resolve[i];
 635                                         vertices[i].Pos.Y += corner_levels[j];
 636                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 637                                 }
 638
 639                                 u16 indices[] = {0,1,2,2,3,0};
 640                                 // Add to mesh collector
 641                                 collector.append(liquid_material, vertices, 4, indices, 6);
 642                         }
 643                 }
 644                 /*
 645                         Add water sources to mesh if using new style
 646                 */
 647                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 648                                 && new_style_water)
 649                 {
 650                         assert(content_features(n).special_material);
 651                         video::SMaterial &liquid_material =
 652                                         *content_features(n).special_material;
 653                         assert(content_features(n).special_atlas);
 654                         AtlasPointer &pa_liquid1 =
 655                                         *content_features(n).special_atlas;
 656
 657                         bool top_is_air = false;
 658                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 659                         if(n.getContent() == CONTENT_AIR)
 660                                 top_is_air = true;
 661
 662                         if(top_is_air == false)
 663                                 continue;
 664
 665                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 666                         video::SColor c = MapBlock_LightColor(
 667                                         content_features(n).vertex_alpha, l);
 668
 669                         video::S3DVertex vertices[4] =
 670                         {
 671                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 672                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 673                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 674                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 675                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 676                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 677                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 678                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 679                         };
 680
 681                         for(s32 i=0; i<4; i++)
 682                         {
 683                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 684                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 685                         }
 686
 687                         u16 indices[] = {0,1,2,2,3,0};
 688                         // Add to mesh collector
 689                         collector.append(liquid_material, vertices, 4, indices, 6);
 690                 }
 691                 /*
 692                         Add leaves if using new style
 693                 */
 694                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 695                 {
 696                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 697                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 698                         video::SColor c = MapBlock_LightColor(255, l);
 699
 700                         for(u32 j=0; j<6; j++)
 701                         {
 702                                 video::S3DVertex vertices[4] =
 703                                 {
 704                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 705                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 706                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 707                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 708                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 709                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 710                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 711                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 712                                 };
 713
 714                                 if(j == 0)
 715                                 {
 716                                         for(u16 i=0; i<4; i++)
 717                                                 vertices[i].Pos.rotateXZBy(0);
 718                                 }
 719                                 else if(j == 1)
 720                                 {
 721                                         for(u16 i=0; i<4; i++)
 722                                                 vertices[i].Pos.rotateXZBy(180);
 723                                 }
 724                                 else if(j == 2)
 725                                 {
 726                                         for(u16 i=0; i<4; i++)
 727                                                 vertices[i].Pos.rotateXZBy(-90);
 728                                 }
 729                                 else if(j == 3)
 730                                 {
 731                                         for(u16 i=0; i<4; i++)
 732                                                 vertices[i].Pos.rotateXZBy(90);
 733                                 }
 734                                 else if(j == 4)
 735                                 {
 736                                         for(u16 i=0; i<4; i++)
 737                                                 vertices[i].Pos.rotateYZBy(-90);
 738                                 }
 739                                 else if(j == 5)
 740                                 {
 741                                         for(u16 i=0; i<4; i++)
 742                                                 vertices[i].Pos.rotateYZBy(90);
 743                                 }
 744
 745                                 for(u16 i=0; i<4; i++)
 746                                 {
 747                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 748                                 }
 749
 750                                 u16 indices[] = {0,1,2,2,3,0};
 751                                 // Add to mesh collector
 752                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 753                         }
 754                 }
 755                 /*
 756                         Add glass
 757                 */
 758                 else if(n.getContent() == CONTENT_GLASS)
 759                 {
 760                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 761                         video::SColor c = MapBlock_LightColor(255, l);
 762
 763                         for(u32 j=0; j<6; j++)
 764                         {
 765                                 video::S3DVertex vertices[4] =
 766                                 {
 767                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 768                                                 pa_glass.x0(), pa_glass.y1()),
 769                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 770                                                 pa_glass.x1(), pa_glass.y1()),
 771                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 772                                                 pa_glass.x1(), pa_glass.y0()),
 773                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 774                                                 pa_glass.x0(), pa_glass.y0()),
 775                                 };
 776
 777                                 if(j == 0)
 778                                 {
 779                                         for(u16 i=0; i<4; i++)
 780                                                 vertices[i].Pos.rotateXZBy(0);
 781                                 }
 782                                 else if(j == 1)
 783                                 {
 784                                         for(u16 i=0; i<4; i++)
 785                                                 vertices[i].Pos.rotateXZBy(180);
 786                                 }
 787                                 else if(j == 2)
 788                                 {
 789                                         for(u16 i=0; i<4; i++)
 790                                                 vertices[i].Pos.rotateXZBy(-90);
 791                                 }
 792                                 else if(j == 3)
 793                                 {
 794                                         for(u16 i=0; i<4; i++)
 795                                                 vertices[i].Pos.rotateXZBy(90);
 796                                 }
 797                                 else if(j == 4)
 798                                 {
 799                                         for(u16 i=0; i<4; i++)
 800                                                 vertices[i].Pos.rotateYZBy(-90);
 801                                 }
 802                                 else if(j == 5)
 803                                 {
 804                                         for(u16 i=0; i<4; i++)
 805                                                 vertices[i].Pos.rotateYZBy(90);
 806                                 }
 807
 808                                 for(u16 i=0; i<4; i++)
 809                                 {
 810                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 811                                 }
 812
 813                                 u16 indices[] = {0,1,2,2,3,0};
 814                                 // Add to mesh collector
 815                                 collector.append(material_glass, vertices, 4, indices, 6);
 816                         }
 817                 }
 818                 /*
 819                         Add fence
 820                 */
 821                 else if(n.getContent() == CONTENT_FENCE)
 822                 {
 823                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 824                         video::SColor c = MapBlock_LightColor(255, l);
 825
 826                         const f32 post_rad=(f32)BS/10;
 827                         const f32 bar_rad=(f32)BS/20;
 828                         const f32 bar_len=(f32)(BS/2)-post_rad;
 829
 830                         // The post - always present
 831                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 832                         f32 postuv[24]={
 833                                         0.4,0.4,0.6,0.6,
 834                                         0.35,0,0.65,1,
 835                                         0.35,0,0.65,1,
 836                                         0.35,0,0.65,1,
 837                                         0.35,0,0.65,1,
 838                                         0.4,0.4,0.6,0.6};
 839                         makeCuboid(material_wood, &collector,
 840                                 &pa_wood, c, pos,
 841                                 post_rad,BS/2,post_rad, postuv);
 842
 843                         // Now a section of fence, +X, if there's a post there
 844                         v3s16 p2 = p;
 845                         p2.X++;
 846                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 847                         if(n2.getContent() == CONTENT_FENCE)
 848                         {
 849                                 pos = intToFloat(p+blockpos_nodes, BS);
 850                                 pos.X += BS/2;
 851                                 pos.Y += BS/4;
 852                                 f32 xrailuv[24]={
 853                                         0,0.4,1,0.6,
 854                                         0,0.4,1,0.6,
 855                                         0,0.4,1,0.6,
 856                                         0,0.4,1,0.6,
 857                                         0,0.4,1,0.6,
 858                                         0,0.4,1,0.6};
 859                                 makeCuboid(material_wood, &collector,
 860                                         &pa_wood, c, pos,
 861                                         bar_len,bar_rad,bar_rad, xrailuv);
 862
 863                                 pos.Y -= BS/2;
 864                                 makeCuboid(material_wood, &collector,
 865                                         &pa_wood, c, pos,
 866                                         bar_len,bar_rad,bar_rad, xrailuv);
 867                         }
 868
 869                         // Now a section of fence, +Z, if there's a post there
 870                         p2 = p;
 871                         p2.Z++;
 872                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 873                         if(n2.getContent() == CONTENT_FENCE)
 874                         {
 875                                 pos = intToFloat(p+blockpos_nodes, BS);
 876                                 pos.Z += BS/2;
 877                                 pos.Y += BS/4;
 878                                 f32 zrailuv[24]={
 879                                         0,0.4,1,0.6,
 880                                         0,0.4,1,0.6,
 881                                         0,0.4,1,0.6,
 882                                         0,0.4,1,0.6,
 883                                         0,0.4,1,0.6,
 884                                         0,0.4,1,0.6};
 885                                 makeCuboid(material_wood, &collector,
 886                                         &pa_wood, c, pos,
 887                                         bar_rad,bar_rad,bar_len, zrailuv);
 888                                 pos.Y -= BS/2;
 889                                 makeCuboid(material_wood, &collector,
 890                                         &pa_wood, c, pos,
 891                                         bar_rad,bar_rad,bar_len, zrailuv);
 892
 893                         }
 894
 895                 }
 896 #if 1
 897                 /*
 898                         Add stones with minerals if stone is invisible
 899                 */
 900                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 901                 {
 902                         for(u32 j=0; j<6; j++)
 903                         {
 904                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 905                                 v3s16 dir = g_6dirs[j];
 906                                 /*u8 l = 0;
 907                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 908                                 if(content_features(n2).param_type == CPT_LIGHT)
 909                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 910                                 else
 911                                         l = 255;*/
 912                                 u8 l = 255;
 913                                 video::SColor c = MapBlock_LightColor(255, l);
 914
 915                                 // Get the right texture
 916                                 TileSpec ts = n.getTile(dir);
 917                                 AtlasPointer ap = ts.texture;
 918                                 material_general.setTexture(0, ap.atlas);
 919
 920                                 video::S3DVertex vertices[4] =
 921                                 {
 922                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 923                                                 ap.x0(), ap.y1()),
 924                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 925                                                 ap.x1(), ap.y1()),
 926                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 927                                                 ap.x1(), ap.y0()),
 928                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 929                                                 ap.x0(), ap.y0()),
 930                                 };
 931
 932                                 if(j == 0)
 933                                 {
 934                                         for(u16 i=0; i<4; i++)
 935                                                 vertices[i].Pos.rotateXZBy(0);
 936                                 }
 937                                 else if(j == 1)
 938                                 {
 939                                         for(u16 i=0; i<4; i++)
 940                                                 vertices[i].Pos.rotateXZBy(180);
 941                                 }
 942                                 else if(j == 2)
 943                                 {
 944                                         for(u16 i=0; i<4; i++)
 945                                                 vertices[i].Pos.rotateXZBy(-90);
 946                                 }
 947                                 else if(j == 3)
 948                                 {
 949                                         for(u16 i=0; i<4; i++)
 950                                                 vertices[i].Pos.rotateXZBy(90);
 951                                 }
 952                                 else if(j == 4)
 953
 954                                 for(u16 i=0; i<4; i++)
 955                                 {
 956                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 957                                 }
 958
 959                                 u16 indices[] = {0,1,2,2,3,0};
 960                                 // Add to mesh collector
 961                                 collector.append(material_general, vertices, 4, indices, 6);
 962                         }
 963                 }
 964 #endif
 965                 else if(n.getContent() == CONTENT_PAPYRUS)
 966                 {
 967                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 968                         video::SColor c = MapBlock_LightColor(255, l);
 969
 970                         for(u32 j=0; j<4; j++)
 971                         {
 972                                 video::S3DVertex vertices[4] =
 973                                 {
 974                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 975                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 976                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 977                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 978                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 979                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 980                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 981                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 982                                 };
 983
 984                                 if(j == 0)
 985                                 {
 986                                         for(u16 i=0; i<4; i++)
 987                                                 vertices[i].Pos.rotateXZBy(45);
 988                                 }
 989                                 else if(j == 1)
 990                                 {
 991                                         for(u16 i=0; i<4; i++)
 992                                                 vertices[i].Pos.rotateXZBy(-45);
 993                                 }
 994                                 else if(j == 2)
 995                                 {
 996                                         for(u16 i=0; i<4; i++)
 997                                                 vertices[i].Pos.rotateXZBy(135);
 998                                 }
 999                                 else if(j == 3)
1000                                 {
1001                                         for(u16 i=0; i<4; i++)
1002                                                 vertices[i].Pos.rotateXZBy(-135);
1003                                 }
1004
1005                                 for(u16 i=0; i<4; i++)
1006                                 {
1007                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1008                                 }
1009
1010                                 u16 indices[] = {0,1,2,2,3,0};
1011                                 // Add to mesh collector
1012                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1013                         }
1014                 }
1015                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1016                 {
1017                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1018                         video::SColor c = MapBlock_LightColor(255, l);
1019
1020                         for(u32 j=0; j<4; j++)
1021                         {
1022                                 video::S3DVertex vertices[4] =
1023                                 {
1024                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1025                                                 pa_junglegrass.x0(), pa_junglegrass.y1()),
1026                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1027                                                 pa_junglegrass.x1(), pa_junglegrass.y1()),
1028                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1029                                                 pa_junglegrass.x1(), pa_junglegrass.y0()),
1030                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1031                                                 pa_junglegrass.x0(), pa_junglegrass.y0()),
1032                                 };
1033
1034                                 if(j == 0)
1035                                 {
1036                                         for(u16 i=0; i<4; i++)
1037                                                 vertices[i].Pos.rotateXZBy(45);
1038                                 }
1039                                 else if(j == 1)
1040                                 {
1041                                         for(u16 i=0; i<4; i++)
1042                                                 vertices[i].Pos.rotateXZBy(-45);
1043                                 }
1044                                 else if(j == 2)
1045                                 {
1046                                         for(u16 i=0; i<4; i++)
1047                                                 vertices[i].Pos.rotateXZBy(135);
1048                                 }
1049                                 else if(j == 3)
1050                                 {
1051                                         for(u16 i=0; i<4; i++)
1052                                                 vertices[i].Pos.rotateXZBy(-135);
1053                                 }
1054
1055                                 for(u16 i=0; i<4; i++)
1056                                 {
1057                                         vertices[i].Pos *= 1.3;
1058                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1059                                 }
1060
1061                                 u16 indices[] = {0,1,2,2,3,0};
1062                                 // Add to mesh collector
1063                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1064                         }
1065                 }
1066                 else if(n.getContent() == CONTENT_RAIL)
1067                 {
1068                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1069                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1070
1071                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1072                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1073                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1074                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1075
1076                         if(n_minus_x.getContent() == CONTENT_RAIL)
1077                                 is_rail_x[0] = true;
1078                         if(n_plus_x.getContent() == CONTENT_RAIL)
1079                                 is_rail_x[1] = true;
1080                         if(n_minus_z.getContent() == CONTENT_RAIL)
1081                                 is_rail_z[0] = true;
1082                         if(n_plus_z.getContent() == CONTENT_RAIL)
1083                                 is_rail_z[1] = true;
1084
1085                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1086
1087                         // Assign textures
1088                         const char *texturename = "rail.png";
1089                         if(adjacencies < 2)
1090                                 texturename = "rail.png";
1091                         else if(adjacencies == 2)
1092                         {
1093                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1094                                         texturename = "rail.png";
1095                                 else
1096                                         texturename = "rail_curved.png";
1097                         }
1098                         else if(adjacencies == 3)
1099                                 texturename = "rail_t_junction.png";
1100                         else if(adjacencies == 4)
1101                                 texturename = "rail_crossing.png";
1102
1103                         AtlasPointer ap = g_texturesource->getTexture(texturename);
1104
1105                         video::SMaterial material_rail;
1106                         material_rail.setFlag(video::EMF_LIGHTING, false);
1107                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, true);
1108                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1109                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1110                         material_rail.MaterialType
1111                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1112                         material_rail.setTexture(0, ap.atlas);
1113
1114                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1115                         video::SColor c = MapBlock_LightColor(255, l);
1116
1117                         float d = (float)BS/16;
1118                         video::S3DVertex vertices[4] =
1119                         {
1120                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1121                                                 ap.x0(), ap.y1()),
1122                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1123                                                 ap.x1(), ap.y1()),
1124                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1125                                                 ap.x1(), ap.y0()),
1126                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1127                                                 ap.x0(), ap.y0()),
1128                         };
1129
1130                         // Rotate textures
1131                         int angle = 0;
1132
1133                         if(adjacencies == 1)
1134                         {
1135                                 if(is_rail_x[0] || is_rail_x[1])
1136                                         angle = 90;
1137                         }
1138                         else if(adjacencies == 2)
1139                         {
1140                                 if(is_rail_x[0] && is_rail_x[1])
1141                                         angle = 90;
1142                                 else if(is_rail_x[0] && is_rail_z[0])
1143                                         angle = 270;
1144                                 else if(is_rail_x[0] && is_rail_z[1])
1145                                         angle = 180;
1146                                 else if(is_rail_x[1] && is_rail_z[1])
1147                                         angle = 90;
1148                         }
1149                         else if(adjacencies == 3)
1150                         {
1151                                 if(!is_rail_x[0])
1152                                         angle=0;
1153                                 if(!is_rail_x[1])
1154                                         angle=180;
1155                                 if(!is_rail_z[0])
1156                                         angle=90;
1157                                 if(!is_rail_z[1])
1158                                         angle=270;
1159                         }
1160
1161                         if(angle != 0) {
1162                                 for(u16 i=0; i<4; i++)
1163                                         vertices[i].Pos.rotateXZBy(angle);
1164                         }
1165
1166                         for(s32 i=0; i<4; i++)
1167                         {
1168                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1169                         }
1170
1171                         u16 indices[] = {0,1,2,2,3,0};
1172                         collector.append(material_rail, vertices, 4, indices, 6);
1173                 }
1174                 else if (n.getContent() == CONTENT_LADDER) {
1175                         AtlasPointer ap = g_texturesource->getTexture("ladder.png");
1176
1177                         // Set material
1178                         video::SMaterial material_ladder;
1179                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1180                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, true);
1181                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1182                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1183                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1184                         material_ladder.setTexture(0, ap.atlas);
1185
1186                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1187                         video::SColor c(255,l,l,l);
1188
1189                         float d = (float)BS/16;
1190
1191                         // Assume wall is at X+
1192                         video::S3DVertex vertices[4] =
1193                         {
1194                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
1195                                                 ap.x0(), ap.y1()),
1196                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
1197                                                 ap.x1(), ap.y1()),
1198                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
1199                                                 ap.x1(), ap.y0()),
1200                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
1201                                                 ap.x0(), ap.y0()),
1202                         };
1203
1204                         v3s16 dir = unpackDir(n.param2);
1205
1206                         for(s32 i=0; i<4; i++)
1207                         {
1208                                 if(dir == v3s16(1,0,0))
1209                                         vertices[i].Pos.rotateXZBy(0);
1210                                 if(dir == v3s16(-1,0,0))
1211                                         vertices[i].Pos.rotateXZBy(180);
1212                                 if(dir == v3s16(0,0,1))
1213                                         vertices[i].Pos.rotateXZBy(90);
1214                                 if(dir == v3s16(0,0,-1))
1215                                         vertices[i].Pos.rotateXZBy(-90);
1216                                 if(dir == v3s16(0,-1,0))
1217                                         vertices[i].Pos.rotateXYBy(-90);
1218                                 if(dir == v3s16(0,1,0))
1219                                         vertices[i].Pos.rotateXYBy(90);
1220
1221                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1222                         }
1223
1224                         u16 indices[] = {0,1,2,2,3,0};
1225                         // Add to mesh collector
1226                         collector.append(material_ladder, vertices, 4, indices, 6);
1227                 }
1228                 else if(n.getContent() == CONTENT_APPLE)
1229                 {
1230                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1231                         video::SColor c = MapBlock_LightColor(255, l);
1232
1233                         for(u32 j=0; j<4; j++)
1234                         {
1235                                 video::S3DVertex vertices[4] =
1236                                 {
1237                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1238                                                 pa_apple.x0(), pa_apple.y1()),
1239                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1240                                                 pa_apple.x1(), pa_apple.y1()),
1241                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
1242                                                 pa_apple.x1(), pa_apple.y0()),
1243                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
1244                                                 pa_apple.x0(), pa_apple.y0()),
1245                                 };
1246
1247                                 if(j == 0)
1248                                 {
1249                                         for(u16 i=0; i<4; i++)
1250                                                 vertices[i].Pos.rotateXZBy(45);
1251                                 }
1252                                 else if(j == 1)
1253                                 {
1254                                         for(u16 i=0; i<4; i++)
1255                                                 vertices[i].Pos.rotateXZBy(-45);
1256                                 }
1257                                 else if(j == 2)
1258                                 {
1259                                         for(u16 i=0; i<4; i++)
1260                                                 vertices[i].Pos.rotateXZBy(135);
1261                                 }
1262                                 else if(j == 3)
1263                                 {
1264                                         for(u16 i=0; i<4; i++)
1265                                                 vertices[i].Pos.rotateXZBy(-135);
1266                                 }
1267
1268                                 for(u16 i=0; i<4; i++)
1269                                 {
1270                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1271                                 }
1272
1273                                 u16 indices[] = {0,1,2,2,3,0};
1274                                 // Add to mesh collector
1275                                 collector.append(material_apple, vertices, 4, indices, 6);
1276                         }
1277                 }
1278                 else if(n.getContent() == CONTENT_SAPLING) {
1279                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1280                         video::SColor c = MapBlock_LightColor(255, l);
1281
1282                         for(u32 j=0; j<4; j++)
1283                         {
1284                                 video::S3DVertex vertices[4] =
1285                                 {
1286                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1287                                                 pa_sapling.x0(), pa_sapling.y1()),
1288                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1289                                                 pa_sapling.x1(), pa_sapling.y1()),
1290                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1291                                                 pa_sapling.x1(), pa_sapling.y0()),
1292                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1293                                                 pa_sapling.x0(), pa_sapling.y0()),
1294                                 };
1295
1296                                 if(j == 0)
1297                                 {
1298                                         for(u16 i=0; i<4; i++)
1299                                                 vertices[i].Pos.rotateXZBy(45);
1300                                 }
1301                                 else if(j == 1)
1302                                 {
1303                                         for(u16 i=0; i<4; i++)
1304                                                 vertices[i].Pos.rotateXZBy(-45);
1305                                 }
1306                                 else if(j == 2)
1307                                 {
1308                                         for(u16 i=0; i<4; i++)
1309                                                 vertices[i].Pos.rotateXZBy(135);
1310                                 }
1311                                 else if(j == 3)
1312                                 {
1313                                         for(u16 i=0; i<4; i++)
1314                                                 vertices[i].Pos.rotateXZBy(-135);
1315                                 }
1316
1317                                 for(u16 i=0; i<4; i++)
1318                                 {
1319                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1320                                 }
1321
1322                                 u16 indices[] = {0,1,2,2,3,0};
1323                                 // Add to mesh collector
1324                                 collector.append(material_sapling, vertices, 4, indices, 6);
1325                         }
1326                 }
1327         }
1328 }
1329 #endif
1330