diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mapgen_v7.cpp | 212 | ||||
| -rw-r--r-- | src/mapgen_v7.h | 24 |
2 files changed, 174 insertions, 62 deletions
diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp index 86f559af3..c4fa024a8 100644 --- a/src/mapgen_v7.cpp +++ b/src/mapgen_v7.cpp @@ -41,9 +41,10 @@ with this program; if not, write to the Free Software Foundation, Inc., FlagDesc flagdesc_mapgen_v7[] = { - {"mountains", MGV7_MOUNTAINS}, - {"ridges", MGV7_RIDGES}, - {NULL, 0} + {"mountains", MGV7_MOUNTAINS}, + {"ridges", MGV7_RIDGES}, + {"floatlands", MGV7_FLOATLANDS}, + {NULL, 0} }; @@ -53,17 +54,23 @@ FlagDesc flagdesc_mapgen_v7[] = { MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge) : MapgenBasic(mapgenid, params, emerge) { - this->spflags = params->spflags; - this->cave_width = params->cave_width; + this->spflags = params->spflags; + this->cave_width = params->cave_width; + this->float_mount_density = params->float_mount_density; + this->float_mount_height = params->float_mount_height; + this->floatland_level = params->floatland_level; + this->shadow_limit = params->shadow_limit; //// Terrain noise - noise_terrain_base = new Noise(¶ms->np_terrain_base, seed, csize.X, csize.Z); - noise_terrain_alt = new Noise(¶ms->np_terrain_alt, seed, csize.X, csize.Z); - noise_terrain_persist = new Noise(¶ms->np_terrain_persist, seed, csize.X, csize.Z); - noise_height_select = new Noise(¶ms->np_height_select, seed, csize.X, csize.Z); - noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z); - noise_mount_height = new Noise(¶ms->np_mount_height, seed, csize.X, csize.Z); - noise_ridge_uwater = new Noise(¶ms->np_ridge_uwater, seed, csize.X, csize.Z); + noise_terrain_base = new Noise(¶ms->np_terrain_base, seed, csize.X, csize.Z); + noise_terrain_alt = new Noise(¶ms->np_terrain_alt, seed, csize.X, csize.Z); + noise_terrain_persist = new Noise(¶ms->np_terrain_persist, seed, csize.X, csize.Z); + noise_height_select = new Noise(¶ms->np_height_select, seed, csize.X, csize.Z); + noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z); + noise_mount_height = new Noise(¶ms->np_mount_height, seed, csize.X, csize.Z); + noise_ridge_uwater = new Noise(¶ms->np_ridge_uwater, seed, csize.X, csize.Z); + noise_floatland_base = new Noise(¶ms->np_floatland_base, seed, csize.X, csize.Z); + noise_float_base_height = new Noise(¶ms->np_float_base_height, seed, csize.X, csize.Z); //// 3d terrain noise // 1-up 1-down overgeneration @@ -84,6 +91,8 @@ MapgenV7::~MapgenV7() delete noise_filler_depth; delete noise_mount_height; delete noise_ridge_uwater; + delete noise_floatland_base; + delete noise_float_base_height; delete noise_mountain; delete noise_ridge; } @@ -91,58 +100,76 @@ MapgenV7::~MapgenV7() MapgenV7Params::MapgenV7Params() { - spflags = MGV7_MOUNTAINS | MGV7_RIDGES; - cave_width = 0.2; - - np_terrain_base = NoiseParams(4, 70, v3f(600, 600, 600), 82341, 5, 0.6, 2.0); - np_terrain_alt = NoiseParams(4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0); - np_terrain_persist = NoiseParams(0.6, 0.1, v3f(2000, 2000, 2000), 539, 3, 0.6, 2.0); - np_height_select = NoiseParams(-8, 16, v3f(500, 500, 500), 4213, 6, 0.7, 2.0); - np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0); - np_mount_height = NoiseParams(256, 112, v3f(1000, 1000, 1000), 72449, 3, 0.6, 2.0); - np_ridge_uwater = NoiseParams(0, 1, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0); - np_mountain = NoiseParams(-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.63, 2.0); - np_ridge = NoiseParams(0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0); - np_cave1 = NoiseParams(0, 12, v3f(61, 61, 61), 52534, 3, 0.5, 2.0); - np_cave2 = NoiseParams(0, 12, v3f(67, 67, 67), 10325, 3, 0.5, 2.0); + spflags = MGV7_MOUNTAINS | MGV7_RIDGES; + cave_width = 0.2; + float_mount_density = 0.6; + float_mount_height = 128.0; + floatland_level = 1280; + shadow_limit = 1024; + + np_terrain_base = NoiseParams(4, 70, v3f(600, 600, 600), 82341, 5, 0.6, 2.0); + np_terrain_alt = NoiseParams(4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0); + np_terrain_persist = NoiseParams(0.6, 0.1, v3f(2000, 2000, 2000), 539, 3, 0.6, 2.0); + np_height_select = NoiseParams(-8, 16, v3f(500, 500, 500), 4213, 6, 0.7, 2.0); + np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0); + np_mount_height = NoiseParams(256, 112, v3f(1000, 1000, 1000), 72449, 3, 0.6, 2.0); + np_ridge_uwater = NoiseParams(0, 1, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0); + np_floatland_base = NoiseParams(-0.6, 1.5, v3f(600, 600, 600), 114, 5, 0.6, 2.0); + np_float_base_height = NoiseParams(48, 24, v3f(300, 300, 300), 907, 4, 0.7, 2.0); + np_mountain = NoiseParams(-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.63, 2.0); + np_ridge = NoiseParams(0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0); + np_cave1 = NoiseParams(0, 12, v3f(61, 61, 61), 52534, 3, 0.5, 2.0); + np_cave2 = NoiseParams(0, 12, v3f(67, 67, 67), 10325, 3, 0.5, 2.0); } void MapgenV7Params::readParams(const Settings *settings) { - settings->getFlagStrNoEx("mgv7_spflags", spflags, flagdesc_mapgen_v7); - settings->getFloatNoEx("mgv7_cave_width", cave_width); - - settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base); - settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); - settings->getNoiseParams("mgv7_np_terrain_persist", np_terrain_persist); - settings->getNoiseParams("mgv7_np_height_select", np_height_select); - settings->getNoiseParams("mgv7_np_filler_depth", np_filler_depth); - settings->getNoiseParams("mgv7_np_mount_height", np_mount_height); - settings->getNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater); - settings->getNoiseParams("mgv7_np_mountain", np_mountain); - settings->getNoiseParams("mgv7_np_ridge", np_ridge); - settings->getNoiseParams("mgv7_np_cave1", np_cave1); - settings->getNoiseParams("mgv7_np_cave2", np_cave2); + settings->getFlagStrNoEx("mgv7_spflags", spflags, flagdesc_mapgen_v7); + settings->getFloatNoEx("mgv7_cave_width", cave_width); + settings->getFloatNoEx("mgv7_float_mount_density", float_mount_density); + settings->getFloatNoEx("mgv7_float_mount_height", float_mount_height); + settings->getS16NoEx("mgv7_floatland_level", floatland_level); + settings->getS16NoEx("mgv7_shadow_limit", shadow_limit); + + settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base); + settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); + settings->getNoiseParams("mgv7_np_terrain_persist", np_terrain_persist); + settings->getNoiseParams("mgv7_np_height_select", np_height_select); + settings->getNoiseParams("mgv7_np_filler_depth", np_filler_depth); + settings->getNoiseParams("mgv7_np_mount_height", np_mount_height); + settings->getNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater); + settings->getNoiseParams("mgv7_np_floatland_base", np_floatland_base); + settings->getNoiseParams("mgv7_np_float_base_height", np_float_base_height); + settings->getNoiseParams("mgv7_np_mountain", np_mountain); + settings->getNoiseParams("mgv7_np_ridge", np_ridge); + settings->getNoiseParams("mgv7_np_cave1", np_cave1); + settings->getNoiseParams("mgv7_np_cave2", np_cave2); } void MapgenV7Params::writeParams(Settings *settings) const { - settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7, U32_MAX); - settings->setFloat("mgv7_cave_width", cave_width); - - settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base); - settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); - settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist); - settings->setNoiseParams("mgv7_np_height_select", np_height_select); - settings->setNoiseParams("mgv7_np_filler_depth", np_filler_depth); - settings->setNoiseParams("mgv7_np_mount_height", np_mount_height); - settings->setNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater); - settings->setNoiseParams("mgv7_np_mountain", np_mountain); - settings->setNoiseParams("mgv7_np_ridge", np_ridge); - settings->setNoiseParams("mgv7_np_cave1", np_cave1); - settings->setNoiseParams("mgv7_np_cave2", np_cave2); + settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7, U32_MAX); + settings->setFloat("mgv7_cave_width", cave_width); + settings->setFloat("mgv7_float_mount_density", float_mount_density); + settings->setFloat("mgv7_float_mount_height", float_mount_height); + settings->setS16("mgv7_floatland_level", floatland_level); + settings->setS16("mgv7_shadow_limit", shadow_limit); + + settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base); + settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); + settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist); + settings->setNoiseParams("mgv7_np_height_select", np_height_select); + settings->setNoiseParams("mgv7_np_filler_depth", np_filler_depth); + settings->setNoiseParams("mgv7_np_mount_height", np_mount_height); + settings->setNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater); + settings->setNoiseParams("mgv7_np_floatland_base", np_floatland_base); + settings->setNoiseParams("mgv7_np_float_base_height", np_float_base_height); + settings->setNoiseParams("mgv7_np_mountain", np_mountain); + settings->setNoiseParams("mgv7_np_ridge", np_ridge); + settings->setNoiseParams("mgv7_np_cave1", np_cave1); + settings->setNoiseParams("mgv7_np_cave2", np_cave2); } @@ -249,9 +276,13 @@ void MapgenV7::makeChunk(BlockMakeData *data) updateLiquid(&data->transforming_liquid, full_node_min, full_node_max); + // Limit floatland shadow + bool propagate_shadow = !((spflags & MGV7_FLOATLANDS) && + node_min.Y <= shadow_limit && node_max.Y >= shadow_limit); + if (flags & MG_LIGHT) calcLighting(node_min - v3s16(0, 1, 0), node_max + v3s16(0, 1, 0), - full_node_min, full_node_max); + full_node_min, full_node_max, propagate_shadow); //setLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE, // node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE, 0xFF); @@ -313,6 +344,47 @@ bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y) } +bool MapgenV7::getFloatlandMountainFromMap(int idx_xyz, int idx_xz, s16 y) +{ + float density_gradient = + -pow(fabs((float)(y - floatland_level) / float_mount_height), 0.8f); + float floatn = noise_mountain->result[idx_xyz] + float_mount_density; + + return floatn + density_gradient >= 0.0f; +} + + +void MapgenV7::floatBaseExtentFromMap(s16 *float_base_min, s16 *float_base_max, int idx_xz) +{ + // '+1' to avoid a layer of stone at y = MAX_MAP_GENERATION_LIMIT + s16 base_min = MAX_MAP_GENERATION_LIMIT + 1; + s16 base_max = MAX_MAP_GENERATION_LIMIT; + + float n_base = noise_floatland_base->result[idx_xz]; + if (n_base > 0.0f) { + float n_base_height = + MYMAX(noise_float_base_height->result[idx_xz], 0.0f); + float amp = n_base * n_base_height; + float ridge = n_base_height / 3.0f; + base_min = floatland_level - amp / 2.0f; + + if (amp > ridge * 2.0f) { + // Lake bed + base_max = floatland_level - (amp - ridge * 2.0f) / 2.0f; + } else { + // Hills and ridges + float diff = fabs(amp - ridge) / ridge; + // Smooth ridges using the 'smoothstep function' + float smooth_diff = diff * diff * (3.0f - 2.0f * diff); + base_max = floatland_level + ridge - smooth_diff * ridge; + } + } + + *float_base_min = base_min; + *float_base_max = base_max; +} + + int MapgenV7::generateTerrain() { MapNode n_air(CONTENT_AIR); @@ -327,11 +399,19 @@ int MapgenV7::generateTerrain() noise_terrain_alt->perlinMap2D(node_min.X, node_min.Z, persistmap); noise_height_select->perlinMap2D(node_min.X, node_min.Z); - if (spflags & MGV7_MOUNTAINS) { + if ((spflags & MGV7_MOUNTAINS) || (spflags & MGV7_FLOATLANDS)) { noise_mountain->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z); + } + + if (spflags & MGV7_MOUNTAINS) { noise_mount_height->perlinMap2D(node_min.X, node_min.Z); } + if (spflags & MGV7_FLOATLANDS) { + noise_floatland_base->perlinMap2D(node_min.X, node_min.Z); + noise_float_base_height->perlinMap2D(node_min.X, node_min.Z); + } + //// Place nodes v3s16 em = vm->m_area.getExtent(); s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT; @@ -340,10 +420,16 @@ int MapgenV7::generateTerrain() for (s16 z = node_min.Z; z <= node_max.Z; z++) for (s16 x = node_min.X; x <= node_max.X; x++, index2d++) { s16 surface_y = baseTerrainLevelFromMap(index2d); - if (surface_y > stone_surface_max_y) stone_surface_max_y = surface_y; + // Get extent of floatland base terrain + // '+1' to avoid a layer of stone at y = MAX_MAP_GENERATION_LIMIT + s16 float_base_min = MAX_MAP_GENERATION_LIMIT + 1; + s16 float_base_max = MAX_MAP_GENERATION_LIMIT; + if (spflags & MGV7_FLOATLANDS) + floatBaseExtentFromMap(&float_base_min, &float_base_max, index2d); + u32 vi = vm->m_area.index(x, node_min.Y - 1, z); u32 index3d = (z - node_min.Z) * zstride_1u1d + (x - node_min.X); @@ -356,8 +442,16 @@ int MapgenV7::generateTerrain() vm->m_data[vi] = n_stone; // Mountain terrain if (y > stone_surface_max_y) stone_surface_max_y = y; + } else if ((spflags & MGV7_FLOATLANDS) && + ((y >= float_base_min && y <= float_base_max) || + getFloatlandMountainFromMap(index3d, index2d, y))) { + vm->m_data[vi] = n_stone; // Floatland terrain + stone_surface_max_y = node_max.Y; } else if (y <= water_level) { - vm->m_data[vi] = n_water; + vm->m_data[vi] = n_water; // Ground level water + } else if ((spflags & MGV7_FLOATLANDS) && + (y >= float_base_max && y <= floatland_level)) { + vm->m_data[vi] = n_water; // Floatland water } else { vm->m_data[vi] = n_air; } @@ -373,7 +467,7 @@ int MapgenV7::generateTerrain() void MapgenV7::generateRidgeTerrain() { - if (node_max.Y < water_level - 16) + if ((node_max.Y < water_level - 16) || (node_max.Y > shadow_limit)) return; noise_ridge->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z); diff --git a/src/mapgen_v7.h b/src/mapgen_v7.h index 3a6bc0801..3972387a7 100644 --- a/src/mapgen_v7.h +++ b/src/mapgen_v7.h @@ -23,9 +23,10 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "mapgen.h" -/////////////////// Mapgen V7 flags -#define MGV7_MOUNTAINS 0x01 -#define MGV7_RIDGES 0x02 +////////////// Mapgen V7 flags +#define MGV7_MOUNTAINS 0x01 +#define MGV7_RIDGES 0x02 +#define MGV7_FLOATLANDS 0x04 class BiomeManager; @@ -35,6 +36,11 @@ extern FlagDesc flagdesc_mapgen_v7[]; struct MapgenV7Params : public MapgenParams { u32 spflags; float cave_width; + float float_mount_density; + float float_mount_height; + s16 floatland_level; + s16 shadow_limit; + NoiseParams np_terrain_base; NoiseParams np_terrain_alt; NoiseParams np_terrain_persist; @@ -42,6 +48,8 @@ struct MapgenV7Params : public MapgenParams { NoiseParams np_filler_depth; NoiseParams np_mount_height; NoiseParams np_ridge_uwater; + NoiseParams np_floatland_base; + NoiseParams np_float_base_height; NoiseParams np_mountain; NoiseParams np_ridge; NoiseParams np_cave1; @@ -68,16 +76,26 @@ public: float baseTerrainLevelFromMap(int index); bool getMountainTerrainAtPoint(s16 x, s16 y, s16 z); bool getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y); + bool getFloatlandMountainFromMap(int idx_xyz, int idx_xz, s16 y); + void floatBaseExtentFromMap(s16 *float_base_min, s16 *float_base_max, int idx_xz); + int generateTerrain(); void generateRidgeTerrain(); private: + float float_mount_density; + float float_mount_height; + s16 floatland_level; + s16 shadow_limit; + Noise *noise_terrain_base; Noise *noise_terrain_alt; Noise *noise_terrain_persist; Noise *noise_height_select; Noise *noise_mount_height; Noise *noise_ridge_uwater; + Noise *noise_floatland_base; + Noise *noise_float_base_height; Noise *noise_mountain; Noise *noise_ridge; }; |