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 #include "mapnode_contentfeatures.h"
  27
  28 #ifndef SERVER
  29 // Create a cuboid.
  30 //  material  - the material to use (for all 6 faces)
  31 //  collector - the MeshCollector for the resulting polygons
  32 //  pa        - texture atlas pointer for the material
  33 //  c         - vertex colour - used for all
  34 //  pos       - the position of the centre of the cuboid
  35 //  rz,ry,rz  - the radius of the cuboid in each dimension
  36 //  txc       - texture coordinates - this is a list of texture coordinates
  37 //              for the opposite corners of each face - therefore, there
  38 //              should be (2+2)*6=24 values in the list. Alternatively, pass
  39 //              NULL to use the entire texture for each face. The order of
  40 //              the faces in the list is top-backi-right-front-left-bottom
  41 //              If you specified 0,0,1,1 for each face, that would be the
  42 //              same as passing NULL.
  43 void makeCuboid(video::SMaterial &material, MeshCollector *collector,
  44         AtlasPointer* pa, video::SColor &c,
  45         v3f &pos, f32 rx, f32 ry, f32 rz, f32* txc)
  46 {
  47         f32 tu0=pa->x0();
  48         f32 tu1=pa->x1();
  49         f32 tv0=pa->y0();
  50         f32 tv1=pa->y1();
  51         f32 txus=tu1-tu0;
  52         f32 txvs=tv1-tv0;
  53
  54         video::S3DVertex v[4] =
  55         {
  56                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv1),
  57                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv1),
  58                 video::S3DVertex(0,0,0, 0,0,0, c, tu1, tv0),
  59                 video::S3DVertex(0,0,0, 0,0,0, c, tu0, tv0)
  60         };
  61
  62         for(int i=0;i<6;i++)
  63         {
  64                 switch(i)
  65                 {
  66                         case 0: // top
  67                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  68                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  69                                 v[2].Pos.X= rx; v[2].Pos.Y= ry; v[2].Pos.Z= rz;
  70                                 v[3].Pos.X= rx; v[3].Pos.Y= ry, v[3].Pos.Z=-rz;
  71                                 break;
  72                         case 1: // back
  73                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  74                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  75                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  76                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  77                                 break;
  78                         case 2: //right
  79                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z=-rz;
  80                                 v[1].Pos.X= rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  81                                 v[2].Pos.X= rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  82                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
  83                                 break;
  84                         case 3: // front
  85                                 v[0].Pos.X= rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  86                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z= rz;
  87                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z= rz;
  88                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  89                                 break;
  90                         case 4: // left
  91                                 v[0].Pos.X=-rx; v[0].Pos.Y= ry; v[0].Pos.Z= rz;
  92                                 v[1].Pos.X=-rx; v[1].Pos.Y= ry; v[1].Pos.Z=-rz;
  93                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
  94                                 v[3].Pos.X=-rx; v[3].Pos.Y=-ry, v[3].Pos.Z= rz;
  95                                 break;
  96                         case 5: // bottom
  97                                 v[0].Pos.X= rx; v[0].Pos.Y=-ry; v[0].Pos.Z= rz;
  98                                 v[1].Pos.X=-rx; v[1].Pos.Y=-ry; v[1].Pos.Z= rz;
  99                                 v[2].Pos.X=-rx; v[2].Pos.Y=-ry; v[2].Pos.Z=-rz;
 100                                 v[3].Pos.X= rx; v[3].Pos.Y=-ry, v[3].Pos.Z=-rz;
 101                                 break;
 102                 }
 103
 104                 if(txc!=NULL)
 105                 {
 106                         v[0].TCoords.X=tu0+txus*txc[0]; v[0].TCoords.Y=tv0+txvs*txc[3];
 107                         v[1].TCoords.X=tu0+txus*txc[2]; v[1].TCoords.Y=tv0+txvs*txc[3];
 108                         v[2].TCoords.X=tu0+txus*txc[2]; v[2].TCoords.Y=tv0+txvs*txc[1];
 109                         v[3].TCoords.X=tu0+txus*txc[0]; v[3].TCoords.Y=tv0+txvs*txc[1];
 110                         txc+=4;
 111                 }
 112
 113                 for(u16 i=0; i<4; i++)
 114                         v[i].Pos += pos;
 115                 u16 indices[] = {0,1,2,2,3,0};
 116                 collector->append(material, v, 4, indices, 6);
 117
 118         }
 119
 120 }
 121 #endif
 122
 123 #ifndef SERVER
 124 void mapblock_mesh_generate_special(MeshMakeData *data,
 125                 MeshCollector &collector)
 126 {
 127         // 0ms
 128         //TimeTaker timer("mapblock_mesh_generate_special()");
 129
 130         /*
 131                 Some settings
 132         */
 133         bool new_style_water = g_settings->getBool("new_style_water");
 134         bool new_style_leaves = g_settings->getBool("new_style_leaves");
 135         //bool smooth_lighting = g_settings->getBool("smooth_lighting");
 136         bool invisible_stone = g_settings->getBool("invisible_stone");
 137
 138         float node_liquid_level = 1.0;
 139         if(new_style_water)
 140                 node_liquid_level = 0.85;
 141
 142         v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;
 143
 144         // New-style leaves material
 145         video::SMaterial material_leaves1;
 146         material_leaves1.setFlag(video::EMF_LIGHTING, false);
 147         material_leaves1.setFlag(video::EMF_BILINEAR_FILTER, false);
 148         material_leaves1.setFlag(video::EMF_FOG_ENABLE, true);
 149         material_leaves1.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 150         AtlasPointer pa_leaves1 = g_texturesource->getTexture(
 151                         g_texturesource->getTextureId("leaves.png"));
 152         material_leaves1.setTexture(0, pa_leaves1.atlas);
 153
 154         // Glass material
 155         video::SMaterial material_glass;
 156         material_glass.setFlag(video::EMF_LIGHTING, false);
 157         material_glass.setFlag(video::EMF_BILINEAR_FILTER, false);
 158         material_glass.setFlag(video::EMF_FOG_ENABLE, true);
 159         material_glass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 160         AtlasPointer pa_glass = g_texturesource->getTexture(
 161                         g_texturesource->getTextureId("glass.png"));
 162         material_glass.setTexture(0, pa_glass.atlas);
 163
 164         // Wood material
 165         video::SMaterial material_wood;
 166         material_wood.setFlag(video::EMF_LIGHTING, false);
 167         material_wood.setFlag(video::EMF_BILINEAR_FILTER, false);
 168         material_wood.setFlag(video::EMF_FOG_ENABLE, true);
 169         material_wood.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 170         AtlasPointer pa_wood = g_texturesource->getTexture(
 171                         g_texturesource->getTextureId("wood.png"));
 172         material_wood.setTexture(0, pa_wood.atlas);
 173
 174         // General ground material for special output
 175         // Texture is modified just before usage
 176         video::SMaterial material_general;
 177         material_general.setFlag(video::EMF_LIGHTING, false);
 178         material_general.setFlag(video::EMF_BILINEAR_FILTER, false);
 179         material_general.setFlag(video::EMF_FOG_ENABLE, true);
 180         material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 181
 182
 183         // Papyrus material
 184         video::SMaterial material_papyrus;
 185         material_papyrus.setFlag(video::EMF_LIGHTING, false);
 186         material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
 187         material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
 188         material_papyrus.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 189         AtlasPointer pa_papyrus = g_texturesource->getTexture(
 190                         g_texturesource->getTextureId("papyrus.png"));
 191         material_papyrus.setTexture(0, pa_papyrus.atlas);
 192
 193         // Apple material
 194         video::SMaterial material_apple;
 195         material_apple.setFlag(video::EMF_LIGHTING, false);
 196         material_apple.setFlag(video::EMF_BILINEAR_FILTER, false);
 197         material_apple.setFlag(video::EMF_FOG_ENABLE, true);
 198         material_apple.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 199         AtlasPointer pa_apple = g_texturesource->getTexture(
 200                         g_texturesource->getTextureId("apple.png"));
 201         material_apple.setTexture(0, pa_apple.atlas);
 202
 203
 204         // Sapling material
 205         video::SMaterial material_sapling;
 206         material_sapling.setFlag(video::EMF_LIGHTING, false);
 207         material_sapling.setFlag(video::EMF_BILINEAR_FILTER, false);
 208         material_sapling.setFlag(video::EMF_FOG_ENABLE, true);
 209         material_sapling.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 210         AtlasPointer pa_sapling = g_texturesource->getTexture(
 211                         g_texturesource->getTextureId("sapling.png"));
 212         material_sapling.setTexture(0, pa_sapling.atlas);
 213
 214
 215         // junglegrass material
 216         video::SMaterial material_junglegrass;
 217         material_junglegrass.setFlag(video::EMF_LIGHTING, false);
 218         material_junglegrass.setFlag(video::EMF_BILINEAR_FILTER, false);
 219         material_junglegrass.setFlag(video::EMF_FOG_ENABLE, true);
 220         material_junglegrass.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 221         AtlasPointer pa_junglegrass = g_texturesource->getTexture(
 222                         g_texturesource->getTextureId("junglegrass.png"));
 223         material_junglegrass.setTexture(0, pa_junglegrass.atlas);
 224
 225         for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 226         for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 227         for(s16 x=0; x<MAP_BLOCKSIZE; x++)
 228         {
 229                 v3s16 p(x,y,z);
 230
 231                 MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
 232
 233                 /*
 234                         Add torches to mesh
 235                 */
 236                 if(n.getContent() == CONTENT_TORCH)
 237                 {
 238                         v3s16 dir = unpackDir(n.param2);
 239
 240                         const char *texturename = "torch.png";
 241                         if(dir == v3s16(0,-1,0)){
 242                                 texturename = "torch_on_floor.png";
 243                         } else if(dir == v3s16(0,1,0)){
 244                                 texturename = "torch_on_ceiling.png";
 245                         // For backwards compatibility
 246                         } else if(dir == v3s16(0,0,0)){
 247                                 texturename = "torch_on_floor.png";
 248                         } else {
 249                                 texturename = "torch.png";
 250                         }
 251
 252                         AtlasPointer ap = g_texturesource->getTexture(texturename);
 253
 254                         // Set material
 255                         video::SMaterial material;
 256                         material.setFlag(video::EMF_LIGHTING, false);
 257                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 258                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 259                         material.setFlag(video::EMF_FOG_ENABLE, true);
 260                         //material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
 261                         material.MaterialType
 262                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 263                         material.setTexture(0, ap.atlas);
 264
 265                         video::SColor c(255,255,255,255);
 266
 267                         // Wall at X+ of node
 268                         video::S3DVertex vertices[4] =
 269                         {
 270                                 video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 271                                                 ap.x0(), ap.y1()),
 272                                 video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 273                                                 ap.x1(), ap.y1()),
 274                                 video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 275                                                 ap.x1(), ap.y0()),
 276                                 video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 277                                                 ap.x0(), ap.y0()),
 278                         };
 279
 280                         for(s32 i=0; i<4; i++)
 281                         {
 282                                 if(dir == v3s16(1,0,0))
 283                                         vertices[i].Pos.rotateXZBy(0);
 284                                 if(dir == v3s16(-1,0,0))
 285                                         vertices[i].Pos.rotateXZBy(180);
 286                                 if(dir == v3s16(0,0,1))
 287                                         vertices[i].Pos.rotateXZBy(90);
 288                                 if(dir == v3s16(0,0,-1))
 289                                         vertices[i].Pos.rotateXZBy(-90);
 290                                 if(dir == v3s16(0,-1,0))
 291                                         vertices[i].Pos.rotateXZBy(45);
 292                                 if(dir == v3s16(0,1,0))
 293                                         vertices[i].Pos.rotateXZBy(-45);
 294
 295                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 296                         }
 297
 298                         u16 indices[] = {0,1,2,2,3,0};
 299                         // Add to mesh collector
 300                         collector.append(material, vertices, 4, indices, 6);
 301                 }
 302                 /*
 303                         Signs on walls
 304                 */
 305                 else if(n.getContent() == CONTENT_SIGN_WALL)
 306                 {
 307                         AtlasPointer ap = g_texturesource->getTexture("sign_wall.png");
 308
 309                         // Set material
 310                         video::SMaterial material;
 311                         material.setFlag(video::EMF_LIGHTING, false);
 312                         material.setFlag(video::EMF_BACK_FACE_CULLING, false);
 313                         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 314                         material.setFlag(video::EMF_FOG_ENABLE, true);
 315                         material.MaterialType
 316                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 317                         material.setTexture(0, ap.atlas);
 318
 319                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 320                         video::SColor c = MapBlock_LightColor(255, l);
 321
 322                         float d = (float)BS/16;
 323                         // Wall at X+ of node
 324                         video::S3DVertex vertices[4] =
 325                         {
 326                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
 327                                                 ap.x0(), ap.y1()),
 328                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
 329                                                 ap.x1(), ap.y1()),
 330                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
 331                                                 ap.x1(), ap.y0()),
 332                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
 333                                                 ap.x0(), ap.y0()),
 334                         };
 335
 336                         v3s16 dir = unpackDir(n.param2);
 337
 338                         for(s32 i=0; i<4; i++)
 339                         {
 340                                 if(dir == v3s16(1,0,0))
 341                                         vertices[i].Pos.rotateXZBy(0);
 342                                 if(dir == v3s16(-1,0,0))
 343                                         vertices[i].Pos.rotateXZBy(180);
 344                                 if(dir == v3s16(0,0,1))
 345                                         vertices[i].Pos.rotateXZBy(90);
 346                                 if(dir == v3s16(0,0,-1))
 347                                         vertices[i].Pos.rotateXZBy(-90);
 348                                 if(dir == v3s16(0,-1,0))
 349                                         vertices[i].Pos.rotateXYBy(-90);
 350                                 if(dir == v3s16(0,1,0))
 351                                         vertices[i].Pos.rotateXYBy(90);
 352
 353                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 354                         }
 355
 356                         u16 indices[] = {0,1,2,2,3,0};
 357                         // Add to mesh collector
 358                         collector.append(material, vertices, 4, indices, 6);
 359                 }
 360                 /*
 361                         Add flowing liquid to mesh
 362                 */
 363                 else if(content_features(n).liquid_type == LIQUID_FLOWING)
 364                 {
 365                         assert(content_features(n).special_material);
 366                         video::SMaterial &liquid_material =
 367                                         *content_features(n).special_material;
 368                         video::SMaterial &liquid_material_bfculled =
 369                                         *content_features(n).special_material2;
 370
 371                         assert(content_features(n).special_atlas);
 372                         AtlasPointer &pa_liquid1 =
 373                                         *content_features(n).special_atlas;
 374
 375                         bool top_is_same_liquid = false;
 376                         MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 377                         content_t c_flowing = content_features(n).liquid_alternative_flowing;
 378                         content_t c_source = content_features(n).liquid_alternative_source;
 379                         if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
 380                                 top_is_same_liquid = true;
 381
 382                         u8 l = 0;
 383                         // Use the light of the node on top if possible
 384                         if(content_features(ntop).param_type == CPT_LIGHT)
 385                                 l = decode_light(ntop.getLightBlend(data->m_daynight_ratio));
 386                         // Otherwise use the light of this node (the liquid)
 387                         else
 388                                 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 389                         video::SColor c = MapBlock_LightColor(
 390                                         content_features(n).vertex_alpha, l);
 391
 392                         // Neighbor liquid levels (key = relative position)
 393                         // Includes current node
 394                         core::map<v3s16, f32> neighbor_levels;
 395                         core::map<v3s16, content_t> neighbor_contents;
 396                         core::map<v3s16, u8> neighbor_flags;
 397                         const u8 neighborflag_top_is_same_liquid = 0x01;
 398                         v3s16 neighbor_dirs[9] = {
 399                                 v3s16(0,0,0),
 400                                 v3s16(0,0,1),
 401                                 v3s16(0,0,-1),
 402                                 v3s16(1,0,0),
 403                                 v3s16(-1,0,0),
 404                                 v3s16(1,0,1),
 405                                 v3s16(-1,0,-1),
 406                                 v3s16(1,0,-1),
 407                                 v3s16(-1,0,1),
 408                         };
 409                         for(u32 i=0; i<9; i++)
 410                         {
 411                                 content_t content = CONTENT_AIR;
 412                                 float level = -0.5 * BS;
 413                                 u8 flags = 0;
 414                                 // Check neighbor
 415                                 v3s16 p2 = p + neighbor_dirs[i];
 416                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 417                                 if(n2.getContent() != CONTENT_IGNORE)
 418                                 {
 419                                         content = n2.getContent();
 420
 421                                         if(n2.getContent() == c_source)
 422                                                 level = (-0.5+node_liquid_level) * BS;
 423                                         else if(n2.getContent() == c_flowing)
 424                                                 level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
 425                                                                 + 0.5) / 8.0 * node_liquid_level) * BS;
 426
 427                                         // Check node above neighbor.
 428                                         // NOTE: This doesn't get executed if neighbor
 429                                         //       doesn't exist
 430                                         p2.Y += 1;
 431                                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 432                                         if(n2.getContent() == c_source ||
 433                                                         n2.getContent() == c_flowing)
 434                                                 flags |= neighborflag_top_is_same_liquid;
 435                                 }
 436
 437                                 neighbor_levels.insert(neighbor_dirs[i], level);
 438                                 neighbor_contents.insert(neighbor_dirs[i], content);
 439                                 neighbor_flags.insert(neighbor_dirs[i], flags);
 440                         }
 441
 442                         // Corner heights (average between four liquids)
 443                         f32 corner_levels[4];
 444
 445                         v3s16 halfdirs[4] = {
 446                                 v3s16(0,0,0),
 447                                 v3s16(1,0,0),
 448                                 v3s16(1,0,1),
 449                                 v3s16(0,0,1),
 450                         };
 451                         for(u32 i=0; i<4; i++)
 452                         {
 453                                 v3s16 cornerdir = halfdirs[i];
 454                                 float cornerlevel = 0;
 455                                 u32 valid_count = 0;
 456                                 u32 air_count = 0;
 457                                 for(u32 j=0; j<4; j++)
 458                                 {
 459                                         v3s16 neighbordir = cornerdir - halfdirs[j];
 460                                         content_t content = neighbor_contents[neighbordir];
 461                                         // If top is liquid, draw starting from top of node
 462                                         if(neighbor_flags[neighbordir] &
 463                                                         neighborflag_top_is_same_liquid)
 464                                         {
 465                                                 cornerlevel = 0.5*BS;
 466                                                 valid_count = 1;
 467                                                 break;
 468                                         }
 469                                         // Source is always the same height
 470                                         else if(content == c_source)
 471                                         {
 472                                                 cornerlevel = (-0.5+node_liquid_level)*BS;
 473                                                 valid_count = 1;
 474                                                 break;
 475                                         }
 476                                         // Flowing liquid has level information
 477                                         else if(content == c_flowing)
 478                                         {
 479                                                 cornerlevel += neighbor_levels[neighbordir];
 480                                                 valid_count++;
 481                                         }
 482                                         else if(content == CONTENT_AIR)
 483                                         {
 484                                                 air_count++;
 485                                         }
 486                                 }
 487                                 if(air_count >= 2)
 488                                         cornerlevel = -0.5*BS;
 489                                 else if(valid_count > 0)
 490                                         cornerlevel /= valid_count;
 491                                 corner_levels[i] = cornerlevel;
 492                         }
 493
 494                         /*
 495                                 Generate sides
 496                         */
 497
 498                         v3s16 side_dirs[4] = {
 499                                 v3s16(1,0,0),
 500                                 v3s16(-1,0,0),
 501                                 v3s16(0,0,1),
 502                                 v3s16(0,0,-1),
 503                         };
 504                         s16 side_corners[4][2] = {
 505                                 {1, 2},
 506                                 {3, 0},
 507                                 {2, 3},
 508                                 {0, 1},
 509                         };
 510                         for(u32 i=0; i<4; i++)
 511                         {
 512                                 v3s16 dir = side_dirs[i];
 513
 514                                 /*
 515                                         If our topside is liquid and neighbor's topside
 516                                         is liquid, don't draw side face
 517                                 */
 518                                 if(top_is_same_liquid &&
 519                                                 neighbor_flags[dir] & neighborflag_top_is_same_liquid)
 520                                         continue;
 521
 522                                 content_t neighbor_content = neighbor_contents[dir];
 523                                 ContentFeatures &n_feat = content_features(neighbor_content);
 524
 525                                 // Don't draw face if neighbor is blocking the view
 526                                 if(n_feat.solidness == 2)
 527                                         continue;
 528
 529                                 bool neighbor_is_same_liquid = (neighbor_content == c_source
 530                                                 || neighbor_content == c_flowing);
 531
 532                                 // Don't draw any faces if neighbor same is liquid and top is
 533                                 // same liquid
 534                                 if(neighbor_is_same_liquid == true
 535                                                 && top_is_same_liquid == false)
 536                                         continue;
 537
 538                                 // Use backface culled material if neighbor doesn't have a
 539                                 // solidness of 0
 540                                 video::SMaterial *current_material = &liquid_material;
 541                                 if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
 542                                         current_material = &liquid_material_bfculled;
 543
 544                                 video::S3DVertex vertices[4] =
 545                                 {
 546                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 547                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 548                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 549                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 550                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 551                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 552                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 553                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 554                                 };
 555
 556                                 /*
 557                                         If our topside is liquid, set upper border of face
 558                                         at upper border of node
 559                                 */
 560                                 if(top_is_same_liquid)
 561                                 {
 562                                         vertices[2].Pos.Y = 0.5*BS;
 563                                         vertices[3].Pos.Y = 0.5*BS;
 564                                 }
 565                                 /*
 566                                         Otherwise upper position of face is corner levels
 567                                 */
 568                                 else
 569                                 {
 570                                         vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
 571                                         vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
 572                                 }
 573
 574                                 /*
 575                                         If neighbor is liquid, lower border of face is corner
 576                                         liquid levels
 577                                 */
 578                                 if(neighbor_is_same_liquid)
 579                                 {
 580                                         vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
 581                                         vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
 582                                 }
 583                                 /*
 584                                         If neighbor is not liquid, lower border of face is
 585                                         lower border of node
 586                                 */
 587                                 else
 588                                 {
 589                                         vertices[0].Pos.Y = -0.5*BS;
 590                                         vertices[1].Pos.Y = -0.5*BS;
 591                                 }
 592
 593                                 for(s32 j=0; j<4; j++)
 594                                 {
 595                                         if(dir == v3s16(0,0,1))
 596                                                 vertices[j].Pos.rotateXZBy(0);
 597                                         if(dir == v3s16(0,0,-1))
 598                                                 vertices[j].Pos.rotateXZBy(180);
 599                                         if(dir == v3s16(-1,0,0))
 600                                                 vertices[j].Pos.rotateXZBy(90);
 601                                         if(dir == v3s16(1,0,-0))
 602                                                 vertices[j].Pos.rotateXZBy(-90);
 603
 604                                         // Do this to not cause glitches when two liquids are
 605                                         // side-by-side
 606                                         /*if(neighbor_is_same_liquid == false){
 607                                                 vertices[j].Pos.X *= 0.98;
 608                                                 vertices[j].Pos.Z *= 0.98;
 609                                         }*/
 610
 611                                         vertices[j].Pos += intToFloat(p + blockpos_nodes, BS);
 612                                 }
 613
 614                                 u16 indices[] = {0,1,2,2,3,0};
 615                                 // Add to mesh collector
 616                                 collector.append(*current_material, vertices, 4, indices, 6);
 617                         }
 618
 619                         /*
 620                                 Generate top side, if appropriate
 621                         */
 622
 623                         if(top_is_same_liquid == false)
 624                         {
 625                                 video::S3DVertex vertices[4] =
 626                                 {
 627                                         video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 628                                                         pa_liquid1.x0(), pa_liquid1.y1()),
 629                                         video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 630                                                         pa_liquid1.x1(), pa_liquid1.y1()),
 631                                         video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 632                                                         pa_liquid1.x1(), pa_liquid1.y0()),
 633                                         video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 634                                                         pa_liquid1.x0(), pa_liquid1.y0()),
 635                                 };
 636
 637                                 // This fixes a strange bug
 638                                 s32 corner_resolve[4] = {3,2,1,0};
 639
 640                                 for(s32 i=0; i<4; i++)
 641                                 {
 642                                         //vertices[i].Pos.Y += liquid_level;
 643                                         //vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
 644                                         s32 j = corner_resolve[i];
 645                                         vertices[i].Pos.Y += corner_levels[j];
 646                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 647                                 }
 648
 649                                 u16 indices[] = {0,1,2,2,3,0};
 650                                 // Add to mesh collector
 651                                 collector.append(liquid_material, vertices, 4, indices, 6);
 652                         }
 653                 }
 654                 /*
 655                         Add water sources to mesh if using new style
 656                 */
 657                 else if(content_features(n).liquid_type == LIQUID_SOURCE
 658                                 && new_style_water)
 659                 {
 660                         assert(content_features(n).special_material);
 661                         video::SMaterial &liquid_material =
 662                                         *content_features(n).special_material;
 663                         assert(content_features(n).special_atlas);
 664                         AtlasPointer &pa_liquid1 =
 665                                         *content_features(n).special_atlas;
 666
 667                         bool top_is_air = false;
 668                         MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
 669                         if(n.getContent() == CONTENT_AIR)
 670                                 top_is_air = true;
 671
 672                         if(top_is_air == false)
 673                                 continue;
 674
 675                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
 676                         video::SColor c = MapBlock_LightColor(
 677                                         content_features(n).vertex_alpha, l);
 678
 679                         video::S3DVertex vertices[4] =
 680                         {
 681                                 video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
 682                                                 pa_liquid1.x0(), pa_liquid1.y1()),
 683                                 video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
 684                                                 pa_liquid1.x1(), pa_liquid1.y1()),
 685                                 video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
 686                                                 pa_liquid1.x1(), pa_liquid1.y0()),
 687                                 video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
 688                                                 pa_liquid1.x0(), pa_liquid1.y0()),
 689                         };
 690
 691                         for(s32 i=0; i<4; i++)
 692                         {
 693                                 vertices[i].Pos.Y += (-0.5+node_liquid_level)*BS;
 694                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 695                         }
 696
 697                         u16 indices[] = {0,1,2,2,3,0};
 698                         // Add to mesh collector
 699                         collector.append(liquid_material, vertices, 4, indices, 6);
 700                 }
 701                 /*
 702                         Add leaves if using new style
 703                 */
 704                 else if(n.getContent() == CONTENT_LEAVES && new_style_leaves)
 705                 {
 706                         /*u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));*/
 707                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 708                         video::SColor c = MapBlock_LightColor(255, l);
 709
 710                         for(u32 j=0; j<6; j++)
 711                         {
 712                                 video::S3DVertex vertices[4] =
 713                                 {
 714                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 715                                                 pa_leaves1.x0(), pa_leaves1.y1()),
 716                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 717                                                 pa_leaves1.x1(), pa_leaves1.y1()),
 718                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 719                                                 pa_leaves1.x1(), pa_leaves1.y0()),
 720                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 721                                                 pa_leaves1.x0(), pa_leaves1.y0()),
 722                                 };
 723
 724                                 if(j == 0)
 725                                 {
 726                                         for(u16 i=0; i<4; i++)
 727                                                 vertices[i].Pos.rotateXZBy(0);
 728                                 }
 729                                 else if(j == 1)
 730                                 {
 731                                         for(u16 i=0; i<4; i++)
 732                                                 vertices[i].Pos.rotateXZBy(180);
 733                                 }
 734                                 else if(j == 2)
 735                                 {
 736                                         for(u16 i=0; i<4; i++)
 737                                                 vertices[i].Pos.rotateXZBy(-90);
 738                                 }
 739                                 else if(j == 3)
 740                                 {
 741                                         for(u16 i=0; i<4; i++)
 742                                                 vertices[i].Pos.rotateXZBy(90);
 743                                 }
 744                                 else if(j == 4)
 745                                 {
 746                                         for(u16 i=0; i<4; i++)
 747                                                 vertices[i].Pos.rotateYZBy(-90);
 748                                 }
 749                                 else if(j == 5)
 750                                 {
 751                                         for(u16 i=0; i<4; i++)
 752                                                 vertices[i].Pos.rotateYZBy(90);
 753                                 }
 754
 755                                 for(u16 i=0; i<4; i++)
 756                                 {
 757                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 758                                 }
 759
 760                                 u16 indices[] = {0,1,2,2,3,0};
 761                                 // Add to mesh collector
 762                                 collector.append(material_leaves1, vertices, 4, indices, 6);
 763                         }
 764                 }
 765                 /*
 766                         Add glass
 767                 */
 768                 else if(n.getContent() == CONTENT_GLASS)
 769                 {
 770                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 771                         video::SColor c = MapBlock_LightColor(255, l);
 772
 773                         for(u32 j=0; j<6; j++)
 774                         {
 775                                 video::S3DVertex vertices[4] =
 776                                 {
 777                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 778                                                 pa_glass.x0(), pa_glass.y1()),
 779                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 780                                                 pa_glass.x1(), pa_glass.y1()),
 781                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 782                                                 pa_glass.x1(), pa_glass.y0()),
 783                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 784                                                 pa_glass.x0(), pa_glass.y0()),
 785                                 };
 786
 787                                 if(j == 0)
 788                                 {
 789                                         for(u16 i=0; i<4; i++)
 790                                                 vertices[i].Pos.rotateXZBy(0);
 791                                 }
 792                                 else if(j == 1)
 793                                 {
 794                                         for(u16 i=0; i<4; i++)
 795                                                 vertices[i].Pos.rotateXZBy(180);
 796                                 }
 797                                 else if(j == 2)
 798                                 {
 799                                         for(u16 i=0; i<4; i++)
 800                                                 vertices[i].Pos.rotateXZBy(-90);
 801                                 }
 802                                 else if(j == 3)
 803                                 {
 804                                         for(u16 i=0; i<4; i++)
 805                                                 vertices[i].Pos.rotateXZBy(90);
 806                                 }
 807                                 else if(j == 4)
 808                                 {
 809                                         for(u16 i=0; i<4; i++)
 810                                                 vertices[i].Pos.rotateYZBy(-90);
 811                                 }
 812                                 else if(j == 5)
 813                                 {
 814                                         for(u16 i=0; i<4; i++)
 815                                                 vertices[i].Pos.rotateYZBy(90);
 816                                 }
 817
 818                                 for(u16 i=0; i<4; i++)
 819                                 {
 820                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 821                                 }
 822
 823                                 u16 indices[] = {0,1,2,2,3,0};
 824                                 // Add to mesh collector
 825                                 collector.append(material_glass, vertices, 4, indices, 6);
 826                         }
 827                 }
 828                 /*
 829                         Add fence
 830                 */
 831                 else if(n.getContent() == CONTENT_FENCE)
 832                 {
 833                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 834                         video::SColor c = MapBlock_LightColor(255, l);
 835
 836                         const f32 post_rad=(f32)BS/10;
 837                         const f32 bar_rad=(f32)BS/20;
 838                         const f32 bar_len=(f32)(BS/2)-post_rad;
 839
 840                         // The post - always present
 841                         v3f pos = intToFloat(p+blockpos_nodes, BS);
 842                         f32 postuv[24]={
 843                                         0.4,0.4,0.6,0.6,
 844                                         0.35,0,0.65,1,
 845                                         0.35,0,0.65,1,
 846                                         0.35,0,0.65,1,
 847                                         0.35,0,0.65,1,
 848                                         0.4,0.4,0.6,0.6};
 849                         makeCuboid(material_wood, &collector,
 850                                 &pa_wood, c, pos,
 851                                 post_rad,BS/2,post_rad, postuv);
 852
 853                         // Now a section of fence, +X, if there's a post there
 854                         v3s16 p2 = p;
 855                         p2.X++;
 856                         MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 857                         if(n2.getContent() == CONTENT_FENCE)
 858                         {
 859                                 pos = intToFloat(p+blockpos_nodes, BS);
 860                                 pos.X += BS/2;
 861                                 pos.Y += BS/4;
 862                                 f32 xrailuv[24]={
 863                                         0,0.4,1,0.6,
 864                                         0,0.4,1,0.6,
 865                                         0,0.4,1,0.6,
 866                                         0,0.4,1,0.6,
 867                                         0,0.4,1,0.6,
 868                                         0,0.4,1,0.6};
 869                                 makeCuboid(material_wood, &collector,
 870                                         &pa_wood, c, pos,
 871                                         bar_len,bar_rad,bar_rad, xrailuv);
 872
 873                                 pos.Y -= BS/2;
 874                                 makeCuboid(material_wood, &collector,
 875                                         &pa_wood, c, pos,
 876                                         bar_len,bar_rad,bar_rad, xrailuv);
 877                         }
 878
 879                         // Now a section of fence, +Z, if there's a post there
 880                         p2 = p;
 881                         p2.Z++;
 882                         n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
 883                         if(n2.getContent() == CONTENT_FENCE)
 884                         {
 885                                 pos = intToFloat(p+blockpos_nodes, BS);
 886                                 pos.Z += BS/2;
 887                                 pos.Y += BS/4;
 888                                 f32 zrailuv[24]={
 889                                         0,0.4,1,0.6,
 890                                         0,0.4,1,0.6,
 891                                         0,0.4,1,0.6,
 892                                         0,0.4,1,0.6,
 893                                         0,0.4,1,0.6,
 894                                         0,0.4,1,0.6};
 895                                 makeCuboid(material_wood, &collector,
 896                                         &pa_wood, c, pos,
 897                                         bar_rad,bar_rad,bar_len, zrailuv);
 898                                 pos.Y -= BS/2;
 899                                 makeCuboid(material_wood, &collector,
 900                                         &pa_wood, c, pos,
 901                                         bar_rad,bar_rad,bar_len, zrailuv);
 902
 903                         }
 904
 905                 }
 906 #if 1
 907                 /*
 908                         Add stones with minerals if stone is invisible
 909                 */
 910                 else if(n.getContent() == CONTENT_STONE && invisible_stone && n.getMineral() != MINERAL_NONE)
 911                 {
 912                         for(u32 j=0; j<6; j++)
 913                         {
 914                                 // NOTE: Hopefully g_6dirs[j] is the right direction...
 915                                 v3s16 dir = g_6dirs[j];
 916                                 /*u8 l = 0;
 917                                 MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + dir);
 918                                 if(content_features(n2).param_type == CPT_LIGHT)
 919                                         l = decode_light(n2.getLightBlend(data->m_daynight_ratio));
 920                                 else
 921                                         l = 255;*/
 922                                 u8 l = 255;
 923                                 video::SColor c = MapBlock_LightColor(255, l);
 924
 925                                 // Get the right texture
 926                                 TileSpec ts = n.getTile(dir);
 927                                 AtlasPointer ap = ts.texture;
 928                                 material_general.setTexture(0, ap.atlas);
 929
 930                                 video::S3DVertex vertices[4] =
 931                                 {
 932                                         video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
 933                                                 ap.x0(), ap.y1()),
 934                                         video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
 935                                                 ap.x1(), ap.y1()),
 936                                         video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
 937                                                 ap.x1(), ap.y0()),
 938                                         video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
 939                                                 ap.x0(), ap.y0()),
 940                                 };
 941
 942                                 if(j == 0)
 943                                 {
 944                                         for(u16 i=0; i<4; i++)
 945                                                 vertices[i].Pos.rotateXZBy(0);
 946                                 }
 947                                 else if(j == 1)
 948                                 {
 949                                         for(u16 i=0; i<4; i++)
 950                                                 vertices[i].Pos.rotateXZBy(180);
 951                                 }
 952                                 else if(j == 2)
 953                                 {
 954                                         for(u16 i=0; i<4; i++)
 955                                                 vertices[i].Pos.rotateXZBy(-90);
 956                                 }
 957                                 else if(j == 3)
 958                                 {
 959                                         for(u16 i=0; i<4; i++)
 960                                                 vertices[i].Pos.rotateXZBy(90);
 961                                 }
 962                                 else if(j == 4)
 963
 964                                 for(u16 i=0; i<4; i++)
 965                                 {
 966                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
 967                                 }
 968
 969                                 u16 indices[] = {0,1,2,2,3,0};
 970                                 // Add to mesh collector
 971                                 collector.append(material_general, vertices, 4, indices, 6);
 972                         }
 973                 }
 974 #endif
 975                 else if(n.getContent() == CONTENT_PAPYRUS)
 976                 {
 977                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
 978                         video::SColor c = MapBlock_LightColor(255, l);
 979
 980                         for(u32 j=0; j<4; j++)
 981                         {
 982                                 video::S3DVertex vertices[4] =
 983                                 {
 984                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
 985                                                 pa_papyrus.x0(), pa_papyrus.y1()),
 986                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
 987                                                 pa_papyrus.x1(), pa_papyrus.y1()),
 988                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
 989                                                 pa_papyrus.x1(), pa_papyrus.y0()),
 990                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
 991                                                 pa_papyrus.x0(), pa_papyrus.y0()),
 992                                 };
 993
 994                                 if(j == 0)
 995                                 {
 996                                         for(u16 i=0; i<4; i++)
 997                                                 vertices[i].Pos.rotateXZBy(45);
 998                                 }
 999                                 else if(j == 1)
1000                                 {
1001                                         for(u16 i=0; i<4; i++)
1002                                                 vertices[i].Pos.rotateXZBy(-45);
1003                                 }
1004                                 else if(j == 2)
1005                                 {
1006                                         for(u16 i=0; i<4; i++)
1007                                                 vertices[i].Pos.rotateXZBy(135);
1008                                 }
1009                                 else if(j == 3)
1010                                 {
1011                                         for(u16 i=0; i<4; i++)
1012                                                 vertices[i].Pos.rotateXZBy(-135);
1013                                 }
1014
1015                                 for(u16 i=0; i<4; i++)
1016                                 {
1017                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1018                                 }
1019
1020                                 u16 indices[] = {0,1,2,2,3,0};
1021                                 // Add to mesh collector
1022                                 collector.append(material_papyrus, vertices, 4, indices, 6);
1023                         }
1024                 }
1025                 else if(n.getContent() == CONTENT_JUNGLEGRASS)
1026                 {
1027                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1028                         video::SColor c = MapBlock_LightColor(255, l);
1029
1030                         for(u32 j=0; j<4; j++)
1031                         {
1032                                 video::S3DVertex vertices[4] =
1033                                 {
1034                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1035                                                 pa_junglegrass.x0(), pa_junglegrass.y1()),
1036                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1037                                                 pa_junglegrass.x1(), pa_junglegrass.y1()),
1038                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1039                                                 pa_junglegrass.x1(), pa_junglegrass.y0()),
1040                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1041                                                 pa_junglegrass.x0(), pa_junglegrass.y0()),
1042                                 };
1043
1044                                 if(j == 0)
1045                                 {
1046                                         for(u16 i=0; i<4; i++)
1047                                                 vertices[i].Pos.rotateXZBy(45);
1048                                 }
1049                                 else if(j == 1)
1050                                 {
1051                                         for(u16 i=0; i<4; i++)
1052                                                 vertices[i].Pos.rotateXZBy(-45);
1053                                 }
1054                                 else if(j == 2)
1055                                 {
1056                                         for(u16 i=0; i<4; i++)
1057                                                 vertices[i].Pos.rotateXZBy(135);
1058                                 }
1059                                 else if(j == 3)
1060                                 {
1061                                         for(u16 i=0; i<4; i++)
1062                                                 vertices[i].Pos.rotateXZBy(-135);
1063                                 }
1064
1065                                 for(u16 i=0; i<4; i++)
1066                                 {
1067                                         vertices[i].Pos *= 1.3;
1068                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1069                                 }
1070
1071                                 u16 indices[] = {0,1,2,2,3,0};
1072                                 // Add to mesh collector
1073                                 collector.append(material_junglegrass, vertices, 4, indices, 6);
1074                         }
1075                 }
1076                 else if(n.getContent() == CONTENT_RAIL)
1077                 {
1078                         bool is_rail_x [] = { false, false };  /* x-1, x+1 */
1079                         bool is_rail_z [] = { false, false };  /* z-1, z+1 */
1080
1081                         MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
1082                         MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
1083                         MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
1084                         MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
1085
1086                         if(n_minus_x.getContent() == CONTENT_RAIL)
1087                                 is_rail_x[0] = true;
1088                         if(n_plus_x.getContent() == CONTENT_RAIL)
1089                                 is_rail_x[1] = true;
1090                         if(n_minus_z.getContent() == CONTENT_RAIL)
1091                                 is_rail_z[0] = true;
1092                         if(n_plus_z.getContent() == CONTENT_RAIL)
1093                                 is_rail_z[1] = true;
1094
1095                         int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
1096
1097                         // Assign textures
1098                         const char *texturename = "rail.png";
1099                         if(adjacencies < 2)
1100                                 texturename = "rail.png";
1101                         else if(adjacencies == 2)
1102                         {
1103                                 if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
1104                                         texturename = "rail.png";
1105                                 else
1106                                         texturename = "rail_curved.png";
1107                         }
1108                         else if(adjacencies == 3)
1109                                 texturename = "rail_t_junction.png";
1110                         else if(adjacencies == 4)
1111                                 texturename = "rail_crossing.png";
1112
1113                         AtlasPointer ap = g_texturesource->getTexture(texturename);
1114
1115                         video::SMaterial material_rail;
1116                         material_rail.setFlag(video::EMF_LIGHTING, false);
1117                         material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
1118                         material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
1119                         material_rail.setFlag(video::EMF_FOG_ENABLE, true);
1120                         material_rail.MaterialType
1121                                         = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1122                         material_rail.setTexture(0, ap.atlas);
1123
1124                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1125                         video::SColor c = MapBlock_LightColor(255, l);
1126
1127                         float d = (float)BS/16;
1128                         video::S3DVertex vertices[4] =
1129                         {
1130                                 video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1131                                                 ap.x0(), ap.y1()),
1132                                 video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
1133                                                 ap.x1(), ap.y1()),
1134                                 video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
1135                                                 ap.x1(), ap.y0()),
1136                                 video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
1137                                                 ap.x0(), ap.y0()),
1138                         };
1139
1140                         // Rotate textures
1141                         int angle = 0;
1142
1143                         if(adjacencies == 1)
1144                         {
1145                                 if(is_rail_x[0] || is_rail_x[1])
1146                                         angle = 90;
1147                         }
1148                         else if(adjacencies == 2)
1149                         {
1150                                 if(is_rail_x[0] && is_rail_x[1])
1151                                         angle = 90;
1152                                 else if(is_rail_x[0] && is_rail_z[0])
1153                                         angle = 270;
1154                                 else if(is_rail_x[0] && is_rail_z[1])
1155                                         angle = 180;
1156                                 else if(is_rail_x[1] && is_rail_z[1])
1157                                         angle = 90;
1158                         }
1159                         else if(adjacencies == 3)
1160                         {
1161                                 if(!is_rail_x[0])
1162                                         angle=0;
1163                                 if(!is_rail_x[1])
1164                                         angle=180;
1165                                 if(!is_rail_z[0])
1166                                         angle=90;
1167                                 if(!is_rail_z[1])
1168                                         angle=270;
1169                         }
1170
1171                         if(angle != 0) {
1172                                 for(u16 i=0; i<4; i++)
1173                                         vertices[i].Pos.rotateXZBy(angle);
1174                         }
1175
1176                         for(s32 i=0; i<4; i++)
1177                         {
1178                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1179                         }
1180
1181                         u16 indices[] = {0,1,2,2,3,0};
1182                         collector.append(material_rail, vertices, 4, indices, 6);
1183                 }
1184                 else if (n.getContent() == CONTENT_LADDER) {
1185                         AtlasPointer ap = g_texturesource->getTexture("ladder.png");
1186
1187                         // Set material
1188                         video::SMaterial material_ladder;
1189                         material_ladder.setFlag(video::EMF_LIGHTING, false);
1190                         material_ladder.setFlag(video::EMF_BACK_FACE_CULLING, false);
1191                         material_ladder.setFlag(video::EMF_BILINEAR_FILTER, false);
1192                         material_ladder.setFlag(video::EMF_FOG_ENABLE, true);
1193                         material_ladder.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
1194                         material_ladder.setTexture(0, ap.atlas);
1195
1196                         u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
1197                         video::SColor c(255,l,l,l);
1198
1199                         float d = (float)BS/16;
1200
1201                         // Assume wall is at X+
1202                         video::S3DVertex vertices[4] =
1203                         {
1204                                 video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
1205                                                 ap.x0(), ap.y1()),
1206                                 video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
1207                                                 ap.x1(), ap.y1()),
1208                                 video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
1209                                                 ap.x1(), ap.y0()),
1210                                 video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
1211                                                 ap.x0(), ap.y0()),
1212                         };
1213
1214                         v3s16 dir = unpackDir(n.param2);
1215
1216                         for(s32 i=0; i<4; i++)
1217                         {
1218                                 if(dir == v3s16(1,0,0))
1219                                         vertices[i].Pos.rotateXZBy(0);
1220                                 if(dir == v3s16(-1,0,0))
1221                                         vertices[i].Pos.rotateXZBy(180);
1222                                 if(dir == v3s16(0,0,1))
1223                                         vertices[i].Pos.rotateXZBy(90);
1224                                 if(dir == v3s16(0,0,-1))
1225                                         vertices[i].Pos.rotateXZBy(-90);
1226                                 if(dir == v3s16(0,-1,0))
1227                                         vertices[i].Pos.rotateXYBy(-90);
1228                                 if(dir == v3s16(0,1,0))
1229                                         vertices[i].Pos.rotateXYBy(90);
1230
1231                                 vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1232                         }
1233
1234                         u16 indices[] = {0,1,2,2,3,0};
1235                         // Add to mesh collector
1236                         collector.append(material_ladder, vertices, 4, indices, 6);
1237                 }
1238                 else if(n.getContent() == CONTENT_APPLE)
1239                 {
1240                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1241                         video::SColor c = MapBlock_LightColor(255, l);
1242
1243                         for(u32 j=0; j<4; j++)
1244                         {
1245                                 video::S3DVertex vertices[4] =
1246                                 {
1247                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1248                                                 pa_apple.x0(), pa_apple.y1()),
1249                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1250                                                 pa_apple.x1(), pa_apple.y1()),
1251                                         video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
1252                                                 pa_apple.x1(), pa_apple.y0()),
1253                                         video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
1254                                                 pa_apple.x0(), pa_apple.y0()),
1255                                 };
1256
1257                                 if(j == 0)
1258                                 {
1259                                         for(u16 i=0; i<4; i++)
1260                                                 vertices[i].Pos.rotateXZBy(45);
1261                                 }
1262                                 else if(j == 1)
1263                                 {
1264                                         for(u16 i=0; i<4; i++)
1265                                                 vertices[i].Pos.rotateXZBy(-45);
1266                                 }
1267                                 else if(j == 2)
1268                                 {
1269                                         for(u16 i=0; i<4; i++)
1270                                                 vertices[i].Pos.rotateXZBy(135);
1271                                 }
1272                                 else if(j == 3)
1273                                 {
1274                                         for(u16 i=0; i<4; i++)
1275                                                 vertices[i].Pos.rotateXZBy(-135);
1276                                 }
1277
1278                                 for(u16 i=0; i<4; i++)
1279                                 {
1280                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1281                                 }
1282
1283                                 u16 indices[] = {0,1,2,2,3,0};
1284                                 // Add to mesh collector
1285                                 collector.append(material_apple, vertices, 4, indices, 6);
1286                         }
1287                 }
1288                 else if(n.getContent() == CONTENT_SAPLING) {
1289                         u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
1290                         video::SColor c = MapBlock_LightColor(255, l);
1291
1292                         for(u32 j=0; j<4; j++)
1293                         {
1294                                 video::S3DVertex vertices[4] =
1295                                 {
1296                                         video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
1297                                                 pa_sapling.x0(), pa_sapling.y1()),
1298                                         video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
1299                                                 pa_sapling.x1(), pa_sapling.y1()),
1300                                         video::S3DVertex(BS/2,BS/1,0, 0,0,0, c,
1301                                                 pa_sapling.x1(), pa_sapling.y0()),
1302                                         video::S3DVertex(-BS/2,BS/1,0, 0,0,0, c,
1303                                                 pa_sapling.x0(), pa_sapling.y0()),
1304                                 };
1305
1306                                 if(j == 0)
1307                                 {
1308                                         for(u16 i=0; i<4; i++)
1309                                                 vertices[i].Pos.rotateXZBy(45);
1310                                 }
1311                                 else if(j == 1)
1312                                 {
1313                                         for(u16 i=0; i<4; i++)
1314                                                 vertices[i].Pos.rotateXZBy(-45);
1315                                 }
1316                                 else if(j == 2)
1317                                 {
1318                                         for(u16 i=0; i<4; i++)
1319                                                 vertices[i].Pos.rotateXZBy(135);
1320                                 }
1321                                 else if(j == 3)
1322                                 {
1323                                         for(u16 i=0; i<4; i++)
1324                                                 vertices[i].Pos.rotateXZBy(-135);
1325                                 }
1326
1327                                 for(u16 i=0; i<4; i++)
1328                                 {
1329                                         vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
1330                                 }
1331
1332                                 u16 indices[] = {0,1,2,2,3,0};
1333                                 // Add to mesh collector
1334                                 collector.append(material_sapling, vertices, 4, indices, 6);
1335                         }
1336                 }
1337         }
1338 }
1339 #endif
1340