diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mapgen_v7.cpp | 144 | ||||
| -rw-r--r-- | src/mapgen_v7.h | 7 |
2 files changed, 70 insertions, 81 deletions
diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp index 069c34119..162bf068f 100644 --- a/src/mapgen_v7.cpp +++ b/src/mapgen_v7.cpp @@ -59,6 +59,8 @@ MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge) //// amount of elements to skip for the next index //// for noise/height/biome maps (not vmanip) this->ystride = csize.X; + // 1-up 1-down overgeneration + this->zstride_1u1d = csize.X * (csize.Y + 2); // 1-down overgeneration this->zstride_1d = csize.X * (csize.Y + 1); @@ -263,10 +265,13 @@ void MapgenV7::makeChunk(BlockMakeData *data) // Make some noise calculateNoise(); - // Generate base terrain, mountains, and ridges with initial heightmaps + // Generate terrain and ridges with initial heightmaps s16 stone_surface_max_y = generateTerrain(); - // Create heightmap + if (spflags & MGV7_RIDGES) + generateRidgeTerrain(); + + // Update heightmap to include mountain terrain updateHeightmap(node_min, node_max); // Create biomemap at heightmap surface @@ -361,6 +366,11 @@ void MapgenV7::calculateNoise() noise_terrain_alt->perlinMap2D(x, z, persistmap); noise_height_select->perlinMap2D(x, z); + if (spflags & MGV7_MOUNTAINS) { + noise_mountain->perlinMap3D(x, y, z); + noise_mount_height->perlinMap2D(x, z); + } + if ((spflags & MGV7_RIDGES) && node_max.Y >= water_level) { noise_ridge->perlinMap3D(x, y, z); noise_ridge_uwater->perlinMap2D(x, z); @@ -369,9 +379,6 @@ void MapgenV7::calculateNoise() // Cave noises are calculated in generateCaves() // only if solid terrain is present in mapchunk - // Mountain noises are calculated in generateMountainTerrain() - // only if solid terrain surface dips into mapchunk - noise_filler_depth->perlinMap2D(x, z); noise_heat->perlinMap2D(x, z); noise_humidity->perlinMap2D(x, z); @@ -400,7 +407,7 @@ Biome *MapgenV7::getBiomeAtPoint(v3s16 p) return bmgr->getBiome(heat, humidity, groundlevel); } -//needs to be updated + float MapgenV7::baseTerrainLevelAtPoint(s16 x, s16 z) { float hselect = NoisePerlin2D(&noise_height_select->np, x, z, seed); @@ -456,99 +463,54 @@ bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y) int MapgenV7::generateTerrain() { - s16 stone_surface_min_y; - s16 stone_surface_max_y; - - generateBaseTerrain(&stone_surface_min_y, &stone_surface_max_y); - - if ((spflags & MGV7_MOUNTAINS) && stone_surface_min_y < node_max.Y) - stone_surface_max_y = generateMountainTerrain(stone_surface_max_y); - - if (spflags & MGV7_RIDGES) - generateRidgeTerrain(); - - return stone_surface_max_y; -} - - -void MapgenV7::generateBaseTerrain(s16 *stone_surface_min_y, s16 *stone_surface_max_y) -{ MapNode n_air(CONTENT_AIR); MapNode n_stone(c_stone); MapNode n_water(c_water_source); v3s16 em = vm->m_area.getExtent(); - s16 surface_min_y = MAX_MAP_GENERATION_LIMIT; - s16 surface_max_y = -MAX_MAP_GENERATION_LIMIT; - u32 index = 0; + s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT; + u32 index2d = 0; + bool mountain_flag = spflags & MGV7_MOUNTAINS; for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - float surface_height = baseTerrainLevelFromMap(index); - s16 surface_y = (s16)surface_height; - - heightmap[index] = surface_y; - ridge_heightmap[index] = surface_y; - - if (surface_y < surface_min_y) - surface_min_y = surface_y; + for (s16 x = node_min.X; x <= node_max.X; x++, index2d++) { + s16 surface_y = baseTerrainLevelFromMap(index2d); + heightmap[index2d] = surface_y; // Create base terrain heightmap + ridge_heightmap[index2d] = surface_y; - if (surface_y > surface_max_y) - surface_max_y = surface_y; + if (surface_y > stone_surface_max_y) + stone_surface_max_y = surface_y; u32 vi = vm->m_area.index(x, node_min.Y - 1, z); + u32 index3d = (z - node_min.Z) * zstride_1u1d + (x - node_min.X); + for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) { if (vm->m_data[vi].getContent() == CONTENT_IGNORE) { - if (y <= surface_y) - vm->m_data[vi] = n_stone; - else if (y <= water_level) + if (y <= surface_y) { + vm->m_data[vi] = n_stone; // Base terrain + } else if (mountain_flag && + getMountainTerrainFromMap(index3d, index2d, y)) { + vm->m_data[vi] = n_stone; // Mountain terrain + if (y > stone_surface_max_y) + stone_surface_max_y = y; + } else if (y <= water_level) { vm->m_data[vi] = n_water; - else + } else { vm->m_data[vi] = n_air; + } } vm->m_area.add_y(em, vi, 1); + index3d += ystride; } } - *stone_surface_min_y = surface_min_y; - *stone_surface_max_y = surface_max_y; -} - - -int MapgenV7::generateMountainTerrain(s16 ymax) -{ - noise_mountain->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z); - noise_mount_height->perlinMap2D(node_min.X, node_min.Z); - - MapNode n_stone(c_stone); - u32 j = 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 vi = vm->m_area.index(node_min.X, y, z); - for (s16 x = node_min.X; x <= node_max.X; x++) { - int index = (z - node_min.Z) * csize.X + (x - node_min.X); - content_t c = vm->m_data[vi].getContent(); - - if (getMountainTerrainFromMap(j, index, y) - && (c == CONTENT_AIR || c == c_water_source)) { - vm->m_data[vi] = n_stone; - if (y > ymax) - ymax = y; - } - - vi++; - j++; - } - } - - return ymax; + return stone_surface_max_y; } void MapgenV7::generateRidgeTerrain() { - if (node_max.Y < water_level) + if (node_max.Y < water_level - 16) return; MapNode n_water(c_water_source); @@ -562,7 +524,7 @@ void MapgenV7::generateRidgeTerrain() for (s16 x = node_min.X; x <= node_max.X; x++, index++, vi++) { int j = (z - node_min.Z) * csize.X + (x - node_min.X); - if (heightmap[j] < water_level - 16) + if (heightmap[j] < water_level - 16) // Use base terrain heightmap continue; float uwatern = noise_ridge_uwater->result[j] * 2; @@ -806,6 +768,36 @@ void MapgenV7::generateCaves(s16 max_stone_y) #if 0 +int MapgenV7::generateMountainTerrain(s16 ymax) +{ + MapNode n_stone(c_stone); + u32 j = 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 vi = vm->m_area.index(node_min.X, y, z); + for (s16 x = node_min.X; x <= node_max.X; x++) { + int index = (z - node_min.Z) * csize.X + (x - node_min.X); + content_t c = vm->m_data[vi].getContent(); + + if (getMountainTerrainFromMap(j, index, y) + && (c == CONTENT_AIR || c == c_water_source)) { + vm->m_data[vi] = n_stone; + if (y > ymax) + ymax = y; + } + + vi++; + j++; + } + } + + return ymax; +} +#endif + + +#if 0 void MapgenV7::carveRivers() { MapNode n_air(CONTENT_AIR), n_water_source(c_water_source); MapNode n_stone(c_stone); diff --git a/src/mapgen_v7.h b/src/mapgen_v7.h index 9fdecf592..57cb55a8a 100644 --- a/src/mapgen_v7.h +++ b/src/mapgen_v7.h @@ -59,6 +59,7 @@ public: BiomeManager *bmgr; int ystride; + int zstride_1u1d; int zstride_1d; u32 spflags; @@ -113,16 +114,12 @@ public: void calculateNoise(); - virtual int generateTerrain(); - void generateBaseTerrain(s16 *stone_surface_min_y, s16 *stone_surface_max_y); - int generateMountainTerrain(s16 ymax); + int generateTerrain(); void generateRidgeTerrain(); MgStoneType generateBiomes(float *heat_map, float *humidity_map); void dustTopNodes(); - //void addTopNodes(); - void generateCaves(s16 max_stone_y); }; |