X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fmapgen_v7.cpp;h=53f385b5396a8ab8f6e2cd6a24084cafbb881404;hb=ee9a442ecc26f2623a1b085344d37636342973eb;hp=c24b3e8d1318b6e124b4d3d0a4f66b732f318c17;hpb=9997e2030c86b938d1889ee71522bc26d01226e6;p=minetest.git diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp index c24b3e8d1..53f385b53 100644 --- a/src/mapgen_v7.cpp +++ b/src/mapgen_v7.cpp @@ -1,7 +1,7 @@ /* Minetest -Copyright (C) 2010-2015 kwolekr, Ryan Kwolek -Copyright (C) 2010-2015 paramat, Matt Gregory +Copyright (C) 2013-2016 kwolekr, Ryan Kwolek +Copyright (C) 2014-2017 paramat This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -33,7 +33,6 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "emerge.h" #include "dungeongen.h" #include "cavegen.h" -#include "treegen.h" #include "mg_biome.h" #include "mg_ore.h" #include "mg_decoration.h" @@ -41,110 +40,174 @@ 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}, + {"caverns", MGV7_CAVERNS}, + {"biomerepeat", MGV7_BIOMEREPEAT}, + {NULL, 0} }; /////////////////////////////////////////////////////////////////////////////// -MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge) +MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge) : MapgenBasic(mapgenid, params, emerge) { - MapgenV7Params *sp = (MapgenV7Params *)params->sparams; - - this->spflags = sp->spflags; - this->cave_width = sp->cave_width; - - //// Terrain noise - noise_terrain_base = new Noise(&sp->np_terrain_base, seed, csize.X, csize.Z); - noise_terrain_alt = new Noise(&sp->np_terrain_alt, seed, csize.X, csize.Z); - noise_terrain_persist = new Noise(&sp->np_terrain_persist, seed, csize.X, csize.Z); - noise_height_select = new Noise(&sp->np_height_select, seed, csize.X, csize.Z); - noise_filler_depth = new Noise(&sp->np_filler_depth, seed, csize.X, csize.Z); - noise_mount_height = new Noise(&sp->np_mount_height, seed, csize.X, csize.Z); - noise_ridge_uwater = new Noise(&sp->np_ridge_uwater, seed, csize.X, csize.Z); - - //// 3d terrain noise - // 1-up 1-down overgeneration - noise_mountain = new Noise(&sp->np_mountain, seed, csize.X, csize.Y + 2, csize.Z); - noise_ridge = new Noise(&sp->np_ridge, seed, csize.X, csize.Y + 2, csize.Z); - - MapgenBasic::np_cave1 = sp->np_cave1; - MapgenBasic::np_cave2 = sp->np_cave2; + spflags = params->spflags; + mount_zero_level = params->mount_zero_level; + cave_width = params->cave_width; + large_cave_depth = params->large_cave_depth; + lava_depth = params->lava_depth; + float_mount_density = params->float_mount_density; + floatland_level = params->floatland_level; + shadow_limit = params->shadow_limit; + cavern_limit = params->cavern_limit; + cavern_taper = params->cavern_taper; + cavern_threshold = params->cavern_threshold; + + // This is to avoid a divide-by-zero. + // Parameter will be saved to map_meta.txt in limited form. + params->float_mount_height = MYMAX(params->float_mount_height, 1.0f); + float_mount_height = params->float_mount_height; + + // 2D 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); + + if (spflags & MGV7_MOUNTAINS) + noise_mount_height = new Noise(¶ms->np_mount_height, seed, csize.X, csize.Z); + + if (spflags & MGV7_FLOATLANDS) { + 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); + } + + if (spflags & MGV7_RIDGES) { + noise_ridge_uwater = new Noise(¶ms->np_ridge_uwater, seed, csize.X, csize.Z); + // 3D noise, 1-up 1-down overgeneration + noise_ridge = new Noise(¶ms->np_ridge, seed, csize.X, csize.Y + 2, csize.Z); + } + // 3D noise, 1 up, 1 down overgeneration + if ((spflags & MGV7_MOUNTAINS) || (spflags & MGV7_FLOATLANDS)) + noise_mountain = new Noise(¶ms->np_mountain, seed, csize.X, csize.Y + 2, csize.Z); + // 3D noise, 1 down overgeneration + MapgenBasic::np_cave1 = params->np_cave1; + MapgenBasic::np_cave2 = params->np_cave2; + MapgenBasic::np_cavern = params->np_cavern; } MapgenV7::~MapgenV7() { delete noise_terrain_base; + delete noise_terrain_alt; delete noise_terrain_persist; delete noise_height_select; - delete noise_terrain_alt; delete noise_filler_depth; - delete noise_mount_height; - delete noise_ridge_uwater; - delete noise_mountain; - delete noise_ridge; + + if (spflags & MGV7_MOUNTAINS) + delete noise_mount_height; + + if (spflags & MGV7_FLOATLANDS) { + delete noise_floatland_base; + delete noise_float_base_height; + } + + if (spflags & MGV7_RIDGES) { + delete noise_ridge_uwater; + delete noise_ridge; + } + + if ((spflags & MGV7_MOUNTAINS) || (spflags & MGV7_FLOATLANDS)) + delete noise_mountain; } -MapgenV7Params::MapgenV7Params() +MapgenV7Params::MapgenV7Params(): + np_terrain_base (4, 70, v3f(600, 600, 600), 82341, 5, 0.6, 2.0), + np_terrain_alt (4, 25, v3f(600, 600, 600), 5934, 5, 0.6, 2.0), + np_terrain_persist (0.6, 0.1, v3f(2000, 2000, 2000), 539, 3, 0.6, 2.0), + np_height_select (-8, 16, v3f(500, 500, 500), 4213, 6, 0.7, 2.0), + np_filler_depth (0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0), + np_mount_height (256, 112, v3f(1000, 1000, 1000), 72449, 3, 0.6, 2.0), + np_ridge_uwater (0, 1, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0), + np_floatland_base (-0.6, 1.5, v3f(600, 600, 600), 114, 5, 0.6, 2.0), + np_float_base_height (48, 24, v3f(300, 300, 300), 907, 4, 0.7, 2.0), + np_mountain (-0.6, 1, v3f(250, 350, 250), 5333, 5, 0.63, 2.0), + np_ridge (0, 1, v3f(100, 100, 100), 6467, 4, 0.75, 2.0), + np_cavern (0, 1, v3f(384, 128, 384), 723, 5, 0.63, 2.0), + np_cave1 (0, 12, v3f(61, 61, 61), 52534, 3, 0.5, 2.0), + np_cave2 (0, 12, v3f(67, 67, 67), 10325, 3, 0.5, 2.0) { - 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); } 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->getS16NoEx("mgv7_mount_zero_level", mount_zero_level); + settings->getFloatNoEx("mgv7_cave_width", cave_width); + settings->getS16NoEx("mgv7_large_cave_depth", large_cave_depth); + settings->getS16NoEx("mgv7_lava_depth", lava_depth); + 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->getS16NoEx("mgv7_cavern_limit", cavern_limit); + settings->getS16NoEx("mgv7_cavern_taper", cavern_taper); + settings->getFloatNoEx("mgv7_cavern_threshold", cavern_threshold); + + 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_cavern", np_cavern); + 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->setS16("mgv7_mount_zero_level", mount_zero_level); + settings->setFloat("mgv7_cave_width", cave_width); + settings->setS16("mgv7_large_cave_depth", large_cave_depth); + settings->setS16("mgv7_lava_depth", lava_depth); + 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->setS16("mgv7_cavern_limit", cavern_limit); + settings->setS16("mgv7_cavern_taper", cavern_taper); + settings->setFloat("mgv7_cavern_threshold", cavern_threshold); + + 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_cavern", np_cavern); + settings->setNoiseParams("mgv7_np_cave1", np_cave1); + settings->setNoiseParams("mgv7_np_cave2", np_cave2); } @@ -153,29 +216,50 @@ void MapgenV7Params::writeParams(Settings *settings) const int MapgenV7::getSpawnLevelAtPoint(v2s16 p) { + // If rivers are enabled, first check if in a river + if (spflags & MGV7_RIDGES) { + float width = 0.2; + float uwatern = NoisePerlin2D(&noise_ridge_uwater->np, p.X, p.Y, seed) * 2; + if (fabs(uwatern) <= width) + return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point + } + + // Terrain noise 'offset' is the average level of that terrain. + // At least 50% of terrain will be below the higher of base and alt terrain + // 'offset's. + // Raising the maximum spawn level above 'water_level + 16' is necessary + // for when terrain 'offset's are set much higher than water_level. + s16 max_spawn_y = MYMAX(MYMAX(noise_terrain_alt->np.offset, + noise_terrain_base->np.offset), + water_level + 16); // Base terrain calculation s16 y = baseTerrainLevelAtPoint(p.X, p.Y); - // Ridge/river terrain calculation - float width = 0.2; - float uwatern = NoisePerlin2D(&noise_ridge_uwater->np, p.X, p.Y, seed) * 2; - // if inside a river this is an unsuitable spawn point - if (fabs(uwatern) <= width) - return MAX_MAP_GENERATION_LIMIT; - - // Mountain terrain calculation - int iters = 128; - while (iters--) { - if (!getMountainTerrainAtPoint(p.X, y + 1, p.Y)) { // Air, y is ground level - if (y <= water_level || y > water_level + 16) + // If mountains are disabled, terrain level is base terrain level. + // Avoids mid-air spawn where mountain terrain would have been. + if (!(spflags & MGV7_MOUNTAINS)) { + if (y < water_level || y > max_spawn_y) + return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point + + // y + 2 because y is surface level and due to biome 'dust' + return y + 2; + } + + // Search upwards for first node without mountain terrain + int iters = 256; + while (iters > 0 && y <= max_spawn_y) { + if (!getMountainTerrainAtPoint(p.X, y + 1, p.Y)) { + if (y <= water_level || y > max_spawn_y) return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point - else - return y; + + // y + 1 due to biome 'dust' + return y + 1; } y++; + iters--; } - // Unsuitable spawn point, no ground surface found + // Unsuitable spawn point return MAX_MAP_GENERATION_LIMIT; } @@ -206,6 +290,12 @@ void MapgenV7::makeChunk(BlockMakeData *data) blockseed = getBlockSeed2(full_node_min, seed); + // Get zero level for biomes and decorations + // Optionally repeat surface biomes in floatlands + s16 biome_zero_level = ((spflags & MGV7_FLOATLANDS) && + (spflags & MGV7_BIOMEREPEAT) && node_max.Y >= shadow_limit) ? + floatland_level - 1 : water_level - 1; + // Generate base and mountain terrain // An initial heightmap is no longer created here for use in generateRidgeTerrain() s16 stone_surface_max_y = generateTerrain(); @@ -219,31 +309,56 @@ void MapgenV7::makeChunk(BlockMakeData *data) // Init biome generator, place biome-specific nodes, and build biomemap biomegen->calcBiomeNoise(node_min); - MgStoneType stone_type = generateBiomes(); - if (flags & MG_CAVES) - generateCaves(stone_surface_max_y, water_level); + MgStoneType mgstone_type; + content_t biome_stone; + generateBiomes(&mgstone_type, &biome_stone, water_level - 1); + + // Generate caverns, tunnels and classic caves + if (flags & MG_CAVES) { + bool near_cavern = false; + // Generate caverns + if (spflags & MGV7_CAVERNS) + near_cavern = generateCaverns(stone_surface_max_y); + // Generate tunnels and classic caves + if (near_cavern) + // Disable classic caves in this mapchunk by setting + // 'large cave depth' to world base. Avoids excessive liquid in + // large caverns and floating blobs of overgenerated liquid. + generateCaves(stone_surface_max_y, -MAX_MAP_GENERATION_LIMIT); + else + generateCaves(stone_surface_max_y, large_cave_depth); + } + // Generate dungeons if (flags & MG_DUNGEONS) - generateDungeons(stone_surface_max_y, stone_type); + generateDungeons(stone_surface_max_y, mgstone_type, biome_stone); // Generate the registered decorations if (flags & MG_DECORATIONS) - m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max); + m_emerge->decomgr->placeAllDecos(this, blockseed, + node_min, node_max, biome_zero_level); // Generate the registered ores - m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max); + m_emerge->oremgr->placeAllOres(this, blockseed, + node_min, node_max, water_level - 1); // Sprinkle some dust on top after everything else was generated dustTopNodes(); //printf("makeChunk: %dms\n", t.stop()); + // Update liquids updateLiquid(&data->transforming_liquid, full_node_min, full_node_max); + // Calculate lighting + // 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); @@ -287,8 +402,9 @@ float MapgenV7::baseTerrainLevelFromMap(int index) bool MapgenV7::getMountainTerrainAtPoint(s16 x, s16 y, s16 z) { - float mnt_h_n = NoisePerlin2D(&noise_mount_height->np, x, z, seed); - float density_gradient = -((float)y / mnt_h_n); + float mnt_h_n = + MYMAX(NoisePerlin2D(&noise_mount_height->np, x, z, seed), 1.0f); + float density_gradient = -((float)(y - mount_zero_level) / mnt_h_n); float mnt_n = NoisePerlin3D(&noise_mountain->np, x, y, z, seed); return mnt_n + density_gradient >= 0.0; @@ -297,14 +413,58 @@ bool MapgenV7::getMountainTerrainAtPoint(s16 x, s16 y, s16 z) bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y) { - float mounthn = noise_mount_height->result[idx_xz]; - float density_gradient = -((float)y / mounthn); + float mounthn = MYMAX(noise_mount_height->result[idx_xz], 1.0f); + float density_gradient = -((float)(y - mount_zero_level) / mounthn); float mountn = noise_mountain->result[idx_xyz]; return mountn + density_gradient >= 0.0; } +bool MapgenV7::getFloatlandMountainFromMap(int idx_xyz, int idx_xz, s16 y) +{ + // Make rim 2 nodes thick to match floatland base terrain + float density_gradient = (y >= floatland_level) ? + -pow((float)(y - floatland_level) / float_mount_height, 0.75f) : + -pow((float)(floatland_level - 1 - y) / float_mount_height, 0.75f); + + 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], 1.0f); + float amp = n_base * n_base_height; + float ridge = n_base_height / 3.0f; + base_min = floatland_level - amp / 1.5f; + + 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); @@ -319,23 +479,37 @@ 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(); + const v3s16 &em = vm->m_area.getExtent(); s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT; u32 index2d = 0; 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); @@ -348,8 +522,16 @@ 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; } @@ -365,7 +547,8 @@ int MapgenV7::generateTerrain() void MapgenV7::generateRidgeTerrain() { - if (node_max.Y < water_level - 16) + if (node_max.Y < water_level - 16 || + ((spflags & MGV7_FLOATLANDS) && node_max.Y > shadow_limit)) return; noise_ridge->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);