-
-
-void MapgenV5::generateBiomes(float *heat_map, float *humidity_map)
-{
- if (node_max.Y < water_level)
- return;
-
- MapNode n_air(CONTENT_AIR);
- MapNode n_stone(c_stone);
- MapNode n_water(c_water_source);
-
- v3s16 em = vm->m_area.getExtent();
- u32 index = 0;
-
- for (s16 z = node_min.Z; z <= node_max.Z; z++)
- for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
- Biome *biome = NULL;
- s16 dfiller = 0;
- s16 y0_top = 0;
- s16 y0_filler = 0;
- s16 depth_water_top = 0;
-
- s16 nplaced = 0;
- u32 i = vm->m_area.index(x, node_max.Y, z);
-
- content_t c_above = vm->m_data[i + em.X].getContent();
- bool have_air = c_above == CONTENT_AIR;
-
- for (s16 y = node_max.Y; y >= node_min.Y; y--) {
- content_t c = vm->m_data[i].getContent();
-
- if (c != CONTENT_IGNORE && c != CONTENT_AIR && (y == node_max.Y || have_air)) {
- biome = bmgr->getBiome(heat_map[index], humidity_map[index], y);
- dfiller = biome->depth_filler + noise_filler_depth->result[index];
- y0_top = biome->depth_top;
- y0_filler = biome->depth_top + dfiller;
- depth_water_top = biome->depth_water_top;
- }
-
- if (c == c_stone && have_air) {
- content_t c_below = vm->m_data[i - em.X].getContent();
-
- if (c_below != CONTENT_AIR) {
- if (nplaced < y0_top) {
- vm->m_data[i] = MapNode(biome->c_top);
- nplaced++;
- } else if (nplaced < y0_filler && nplaced >= y0_top) {
- vm->m_data[i] = MapNode(biome->c_filler);
- nplaced++;
- } else if (c == c_stone) {
- have_air = false;
- nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_stone);
- } else {
- have_air = false;
- nplaced = 0;
- }
- } else if (c == c_stone) {
- have_air = false;
- nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_stone);
- }
- } else if (c == c_stone) {
- have_air = false;
- nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_stone);
- } else if (c == c_water_source) {
- have_air = true;
- nplaced = 0;
- if(y > water_level - depth_water_top)
- vm->m_data[i] = MapNode(biome->c_water_top);
- else
- vm->m_data[i] = MapNode(biome->c_water);
- } else if (c == CONTENT_AIR) {
- have_air = true;
- nplaced = 0;
- }
-
- vm->m_area.add_y(em, i, -1);
- }
- }
-}
-
-
-void MapgenV5::generateCaves(int max_stone_y)
-{
- u32 index = 0;
- u32 index2d = 0;
-
- for(s16 z=node_min.Z; z<=node_max.Z; z++) {
- for(s16 y=node_min.Y - 1; y<=node_max.Y + 1; y++) {
- u32 i = vm->m_area.index(node_min.X, y, z);
- for(s16 x=node_min.X; x<=node_max.X; x++, i++, index++, index2d++) {
- Biome *biome = (Biome *)bmgr->get(biomemap[index2d]);
- content_t c = vm->m_data[i].getContent();
- if(c == CONTENT_AIR
- || (y <= water_level
- && c != biome->c_stone
- && c != c_stone))
- continue;
-
- float d1 = contour(noise_cave1->result[index]);
- float d2 = contour(noise_cave2->result[index]);
- if(d1*d2 > 0.125)
- vm->m_data[i] = MapNode(CONTENT_AIR);
- }
- index2d = index2d - ystride;
- }
- index2d = index2d + ystride;
- }
-
- if (node_max.Y > -256)
- return;
-
- PseudoRandom ps(blockseed + 21343);
- u32 bruises_count = (ps.range(1, 5) == 1) ? ps.range(1, 2) : 0;
- for (u32 i = 0; i < bruises_count; i++) {
- CaveV5 cave(this, &ps);
- cave.makeCave(node_min, node_max, max_stone_y);
- }
-}
-
-
-void MapgenV5::dustTopNodes()
-{
- if (node_max.Y < water_level)
- return;
-
- v3s16 em = vm->m_area.getExtent();
- u32 index = 0;
-
- for (s16 z = node_min.Z; z <= node_max.Z; z++)
- for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
- Biome *biome = (Biome *)bmgr->get(biomemap[index]);
-
- if (biome->c_dust == CONTENT_IGNORE)
- continue;
-
- s16 y = node_max.Y + 1;
- u32 vi = vm->m_area.index(x, y, z);
- for (; y >= node_min.Y; y--) {
- if (vm->m_data[vi].getContent() != CONTENT_AIR)
- break;
-
- vm->m_area.add_y(em, vi, -1);
- }
-
- content_t c = vm->m_data[vi].getContent();
- if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE
- && c != biome->c_dust) {
- if (y == node_max.Y + 1)
- continue;
-
- vm->m_area.add_y(em, vi, 1);
- vm->m_data[vi] = MapNode(biome->c_dust);
- }
- }
-}
-