From: kwolekr Date: Sat, 6 Jul 2013 06:21:35 +0000 (-0400) Subject: Mapgen V7: Huge rewrite, also tweaks to cavegen et al. X-Git-Tag: 0.4.8~349 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=18d7bc7fa1f2621eb593969b7bcccfeb4918c05f;p=oweals%2Fminetest.git Mapgen V7: Huge rewrite, also tweaks to cavegen et al. --- diff --git a/src/biome.cpp b/src/biome.cpp index 356476b13..19630019f 100644 --- a/src/biome.cpp +++ b/src/biome.cpp @@ -43,9 +43,9 @@ BiomeDefManager::BiomeDefManager() { b->flags = 0; b->c_top = CONTENT_AIR; - b->top_depth = 0; - b->c_filler = b->c_top; - b->filler_height = MAP_GENERATION_LIMIT; + b->depth_top = 0; + b->c_filler = CONTENT_AIR; + b->depth_filler = 0; b->height_min = -MAP_GENERATION_LIMIT; b->height_max = MAP_GENERATION_LIMIT; @@ -101,27 +101,42 @@ void BiomeDefManager::resolveNodeNames(INodeDefManager *ndef) { biome_registration_finished = true; - for (size_t i = 0; i != biomes.size(); i++) { + for (size_t i = 1; i < biomes.size(); i++) { b = biomes[i]; - + + b->c_top = ndef->getId(b->nname_top); if (b->c_top == CONTENT_IGNORE) { - b->c_top = ndef->getId(b->top_nodename); - if (b->c_top == CONTENT_IGNORE) { - errorstream << "BiomeDefManager::resolveNodeNames: node '" - << b->top_nodename << "' not defined" << std::endl; - b->c_top = CONTENT_AIR; - b->top_depth = 0; - } + errorstream << "BiomeDefManager::resolveNodeNames: node '" + << b->nname_top << "' not defined" << std::endl; + b->c_top = CONTENT_AIR; + b->depth_top = 0; } - + + b->c_filler = ndef->getId(b->nname_filler); if (b->c_filler == CONTENT_IGNORE) { - b->c_filler = ndef->getId(b->filler_nodename); - if (b->c_filler == CONTENT_IGNORE) { - errorstream << "BiomeDefManager::resolveNodeNames: node '" - << b->filler_nodename << "' not defined" << std::endl; - b->c_filler = CONTENT_AIR; - b->filler_height = MAP_GENERATION_LIMIT; - } + errorstream << "BiomeDefManager::resolveNodeNames: node '" + << b->nname_filler << "' not defined" << std::endl; + b->c_filler = CONTENT_AIR; + b->depth_filler = 0; + } + + b->c_water = ndef->getId(b->nname_water); + if (b->c_water == CONTENT_IGNORE) { + errorstream << "BiomeDefManager::resolveNodeNames: node '" + << b->nname_water << "' not defined" << std::endl; + b->c_water = CONTENT_AIR; + } + + b->c_dust = ndef->getId(b->nname_dust); + if (b->c_dust == CONTENT_IGNORE) { + errorstream << "BiomeDefManager::resolveNodeNames: node '" + << b->nname_dust << "' not defined" << std::endl; + } + + b->c_dust_water = ndef->getId(b->nname_dust_water); + if (b->c_dust_water == CONTENT_IGNORE) { + errorstream << "BiomeDefManager::resolveNodeNames: node '" + << b->nname_dust_water << "' not defined" << std::endl; } } } diff --git a/src/biome.h b/src/biome.h index 535dc4989..cf3bd1b9f 100644 --- a/src/biome.h +++ b/src/biome.h @@ -45,14 +45,20 @@ public: std::string name; u32 flags; - std::string top_nodename; - std::string filler_nodename; + std::string nname_top; + std::string nname_filler; + std::string nname_water; + std::string nname_dust; + std::string nname_dust_water; content_t c_top; - s16 top_depth; - content_t c_filler; - s16 filler_height; + content_t c_water; + content_t c_dust; + content_t c_dust_water; + + s16 depth_top; + s16 depth_filler; s16 height_min; s16 height_max; diff --git a/src/cavegen.cpp b/src/cavegen.cpp index 01149084b..51af50984 100644 --- a/src/cavegen.cpp +++ b/src/cavegen.cpp @@ -275,6 +275,7 @@ CaveV7::CaveV7(MapgenV7 *mg, PseudoRandom *ps, bool is_large_cave) { this->ps = ps; this->c_water_source = mg->c_water_source; this->c_lava_source = mg->c_lava_source; + this->c_ice = mg->c_ice; this->np_caveliquids = &nparams_caveliquids; dswitchint = ps->range(1, 14); @@ -454,8 +455,9 @@ void CaveV7::makeTunnel(bool dirswitch) { bool randomize_xz = (ps->range(1, 2) == 1); // Make a ravine every once in a while if it's long enough - float xylen = vec.X * vec.X + vec.Z * vec.Z; - bool is_ravine = (xylen > 500.0) && !large_cave && (ps->range(1, 8) == 1); + //float xylen = vec.X * vec.X + vec.Z * vec.Z; + //disable ravines for now + bool is_ravine = false; //(xylen > 500.0) && !large_cave && (ps->range(1, 8) == 1); // Carve routes for (float f = 0; f < 1.0; f += 1.0 / veclen) @@ -490,6 +492,7 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { } bool flat_cave_floor = !large_cave && ps->range(0, 2) == 2; + bool should_make_cave_hole = ps->range(1, 10) == 1; for (s16 z0 = d0; z0 <= d1; z0++) { s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1); @@ -513,10 +516,10 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0); p += of; - if (!is_ravine && mg->heightmap) { + if (!is_ravine && mg->heightmap && should_make_cave_hole) { int maplen = node_max.X - node_min.X + 1; int idx = (p.Z - node_min.Z) * maplen + (p.X - node_min.X); - if (p.Y >= mg->heightmap[idx]) + if (p.Y >= mg->heightmap[idx] - 2) continue; } @@ -525,9 +528,10 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { u32 i = vm->m_area.index(p); - // Don't replace air or water or lava + // Don't replace air, water, lava, or ice content_t c = vm->m_data[i].getContent(); - if (c == CONTENT_AIR || c == c_water_source || c == c_lava_source) + if (c == CONTENT_AIR || c == c_water_source || + c == c_lava_source || c == c_ice) continue; if (large_cave) { @@ -541,6 +545,9 @@ void CaveV7::carveRoute(v3f vec, float f, bool randomize_xz, bool is_ravine) { else vm->m_data[i] = airnode; } else { + if (c == CONTENT_IGNORE) + continue; + vm->m_data[i] = airnode; vm->m_flags[i] |= VMANIP_FLAG_CAVE; } diff --git a/src/cavegen.h b/src/cavegen.h index a908c61d8..a0268a645 100644 --- a/src/cavegen.h +++ b/src/cavegen.h @@ -104,6 +104,7 @@ public: content_t c_water_source; content_t c_lava_source; + content_t c_ice; int water_level; diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp index af73adfe2..101eb35a4 100644 --- a/src/defaultsettings.cpp +++ b/src/defaultsettings.cpp @@ -235,12 +235,15 @@ void set_default_settings(Settings *settings) settings->setDefault("mgv6_np_trees", "0, 1, (125, 125, 125), 2, 4, 0.66"); settings->setDefault("mgv6_np_apple_trees", "0, 1, (100, 100, 100), 342902, 3, 0.45"); - settings->setDefault("mgv7_np_terrain_base", "0, 80, (250, 250, 250), 82341, 5, 0.6"); - settings->setDefault("mgv7_np_terrain_alt", "0, 20, (250, 250, 250), 5934, 5, 0.6"); - settings->setDefault("mgv7_np_terrain_mod", "0, 1, (350, 350, 350), 85039, 5, 0.6"); - settings->setDefault("mgv7_np_terrain_persist", "0, 1, (500, 500, 500), 539, 3, 0.6"); - settings->setDefault("mgv7_np_height_select", "0.5, 0.5, (250, 250, 250), 4213, 5, 0.69"); - settings->setDefault("mgv7_np_ridge", "0, 1, (100, 100, 100), 6467, 4, 0.75"); + settings->setDefault("mgv7_np_terrain_base", "4, 70, (300, 300, 300), 82341, 6, 0.7"); + settings->setDefault("mgv7_np_terrain_alt", "4, 25, (600, 600, 600), 5934, 5, 0.6"); + settings->setDefault("mgv7_np_terrain_persist", "0.6, 0.1, (500, 500, 500), 539, 3, 0.6"); + settings->setDefault("mgv7_np_height_select", "-0.5, 1, (250, 250, 250), 4213, 5, 0.69"); + settings->setDefault("mgv7_np_filler_depth", "0, 1.2, (150, 150, 150), 261, 4, 0.7"); + settings->setDefault("mgv7_np_mount_height", "100, 30, (500, 500, 500), 72449, 4, 0.6"); + settings->setDefault("mgv7_np_ridge_uwater", "0, 1, (500, 500, 500), 85039, 4, 0.6"); + settings->setDefault("mgv7_np_mountain", "0, 1, (250, 350, 250), 5333, 5, 0.68"); + settings->setDefault("mgv7_np_ridge", "0, 1, (100, 120, 100), 6467, 4, 0.75"); settings->setDefault("mgindev_np_terrain_base", "-4, 20, (250, 250, 250), 82341, 5, 0.6, 10, 10"); settings->setDefault("mgindev_np_terrain_higher", "20, 16, (500, 500, 500), 85039, 5, 0.6, 10, 10"); diff --git a/src/mapgen.cpp b/src/mapgen.cpp index 905e80e89..94d1a6310 100644 --- a/src/mapgen.cpp +++ b/src/mapgen.cpp @@ -291,7 +291,7 @@ void Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) { continue; int height = getHeight(); - int max_y = nmax.Y + MAP_BLOCKSIZE; + int max_y = nmax.Y;// + MAP_BLOCKSIZE - 1; if (y + 1 + height > max_y) { continue; #if 0 @@ -859,9 +859,16 @@ void Mapgen::updateHeightmap(v3s16 nmin, v3s16 nmax) { //TimeTaker t("Mapgen::updateHeightmap", NULL, PRECISION_MICRO); int index = 0; for (s16 z = nmin.Z; z <= nmax.Z; z++) { - for (s16 x = nmin.X; x <= nmax.X; x++) { + for (s16 x = nmin.X; x <= nmax.X; x++, index++) { s16 y = findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y); - heightmap[index++] = y; + + // if the values found are out of range, trust the old heightmap + if (y == nmax.Y && heightmap[index] > nmax.Y) + continue; + if (y == nmin.Y - 1 && heightmap[index] < nmin.Y) + continue; + + heightmap[index] = y; } } //printf("updateHeightmap: %dus\n", t.stop()); @@ -1060,9 +1067,12 @@ bool MapgenV7Params::readParams(Settings *settings) { bool success = settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base) && settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt) && - settings->getNoiseParams("mgv7_np_terrain_mod", np_terrain_mod) && 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); return success; } @@ -1071,9 +1081,12 @@ bool MapgenV7Params::readParams(Settings *settings) { void MapgenV7Params::writeParams(Settings *settings) { settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base); settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt); - settings->setNoiseParams("mgv7_np_terrain_mod", np_terrain_mod); 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); } diff --git a/src/mapgen.h b/src/mapgen.h index 4ed81b99b..7229e8996 100644 --- a/src/mapgen.h +++ b/src/mapgen.h @@ -36,6 +36,8 @@ with this program; if not, write to the Free Software Foundation, Inc., #define MGV6_BIOME_BLEND 0x10 #define MG_FLAT 0x20 #define MG_NOLIGHT 0x40 +#define MGV7_MOUNTAINS 0x80 +#define MGV7_RIDGES 0x100 /////////////////// Ore generation flags // Use absolute value of height to determine ore placement diff --git a/src/mapgen_math.cpp b/src/mapgen_math.cpp index 6d0bf1292..f2b17896d 100644 --- a/src/mapgen_math.cpp +++ b/src/mapgen_math.cpp @@ -172,7 +172,6 @@ void MapgenMathParams::writeParams(Settings *settings) { MapgenMath::MapgenMath(int mapgenid, MapgenMathParams *params_, EmergeManager *emerge) : MapgenV7(mapgenid, params_, emerge) { mg_params = params_; this->flags |= MG_NOLIGHT; - this->ridges = 0; Json::Value & params = mg_params->params; invert = params["invert"].empty() ? 1 : params["invert"].asBool(); //params["invert"].empty()?1:params["invert"].asBool(); @@ -238,7 +237,7 @@ MapgenMath::~MapgenMath() { //////////////////////// Map generator -void MapgenMath::generateTerrain() { +int MapgenMath::generateTerrain() { MapNode n_air(CONTENT_AIR, LIGHT_SUN), n_water_source(c_water_source, LIGHT_SUN); MapNode n_stone(c_stone, LIGHT_SUN); @@ -263,9 +262,9 @@ void MapgenMath::generateTerrain() { double d = (*func)(vec.X, vec.Y, vec.Z, distance, iterations); if ((!invert && d > 0) || (invert && d == 0) ) { if (vm->m_data[i].getContent() == CONTENT_IGNORE) - vm->m_data[i] = (y > water_level + biome->filler_height) ? - MapNode(biome->c_filler) : n_stone; -// vm->m_data[i] = n_stone; + // vm->m_data[i] = (y > water_level + biome->filler) ? + // MapNode(biome->c_filler) : n_stone; + vm->m_data[i] = n_stone; } else if (y <= water_level) { vm->m_data[i] = n_water_source; } else { @@ -361,7 +360,7 @@ void MapgenMath::generateTerrain() { #endif - + return 0; } int MapgenMath::getGroundLevelAtPoint(v2s16 p) { diff --git a/src/mapgen_math.h b/src/mapgen_math.h index 3d3929c51..1bc404641 100644 --- a/src/mapgen_math.h +++ b/src/mapgen_math.h @@ -42,7 +42,7 @@ class MapgenMath : public MapgenV7 { MapgenMath(int mapgenid, MapgenMathParams *mg_params, EmergeManager *emerge); ~MapgenMath(); - void generateTerrain(); + int generateTerrain(); int getGroundLevelAtPoint(v2s16 p); bool invert; diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp index 861cdde62..9b8c2c53a 100644 --- a/src/mapgen_v7.cpp +++ b/src/mapgen_v7.cpp @@ -24,10 +24,8 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "mapblock.h" #include "mapnode.h" #include "map.h" -//#include "serverobject.h" #include "content_sao.h" #include "nodedef.h" -#include "content_mapnode.h" // For content_mapnode_get_new_name #include "voxelalgorithms.h" #include "profiler.h" #include "settings.h" // For g_settings @@ -42,29 +40,27 @@ with this program; if not, write to the Free Software Foundation, Inc., /////////////////// Mapgen V7 perlin noise default values NoiseParams nparams_v7_def_terrain_base = - {0, 80.0, v3f(250.0, 250.0, 250.0), 82341, 5, 0.6}; + {4, 70, v3f(300, 300, 300), 82341, 6, 0.7}; NoiseParams nparams_v7_def_terrain_alt = - {0, 20.0, v3f(250.0, 250.0, 250.0), 5934, 5, 0.6}; -NoiseParams nparams_v7_def_terrain_mod = - {0, 1.0, v3f(350.0, 350.0, 350.0), 85039, 5, 0.6}; + {4, 25, v3f(600, 600, 600), 5934, 5, 0.6}; NoiseParams nparams_v7_def_terrain_persist = - {0, 1.0, v3f(500.0, 500.0, 500.0), 539, 3, 0.6}; + {0.6, 0.1, v3f(500, 500, 500), 539, 3, 0.6}; NoiseParams nparams_v7_def_height_select = - {0.5, 0.5, v3f(250.0, 250.0, 250.0), 4213, 5, 0.69}; + {-0.5, 1, v3f(250, 250, 250), 4213, 5, 0.69}; + +NoiseParams nparams_v7_def_filler_depth = + {0, 1.2, v3f(150, 150, 150), 261, 4, 0.7}; + +NoiseParams nparams_v7_def_mount_height = + {100, 30, v3f(500, 500, 500), 72449, 4, 0.6}; +NoiseParams nparams_v7_def_ridge_uwater = + {0, 1, v3f(500, 500, 500), 85039, 4, 0.6}; +NoiseParams nparams_v7_def_mountain = + {0, 1, v3f(250, 350, 250), 5333, 5, 0.68}; NoiseParams nparams_v7_def_ridge = - {0, 1.0, v3f(100.0, 100.0, 100.0), 6467, 4, 0.75}; -/* -NoiseParams nparams_v6_def_beach = - {0.0, 1.0, v3f(250.0, 250.0, 250.0), 59420, 3, 0.50}; -NoiseParams nparams_v6_def_cave = - {6.0, 6.0, v3f(250.0, 250.0, 250.0), 34329, 3, 0.50}; -NoiseParams nparams_v6_def_humidity = - {0.5, 0.5, v3f(500.0, 500.0, 500.0), 72384, 4, 0.66}; -NoiseParams nparams_v6_def_trees = - {0.0, 1.0, v3f(125.0, 125.0, 125.0), 2, 4, 0.66}; -NoiseParams nparams_v6_def_apple_trees = - {0.0, 1.0, v3f(100.0, 100.0, 100.0), 342902, 3, 0.45}; -*/ + {0, 1, v3f(100, 100, 100), 6467, 4, 0.75}; + + /////////////////////////////////////////////////////////////////////////////// @@ -76,11 +72,14 @@ MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge) this->seed = (int)params->seed; this->water_level = params->water_level; - this->flags = params->flags; - this->ridges = 1; + this->flags = params->flags | MGV7_MOUNTAINS | MGV7_RIDGES; this->csize = v3s16(1, 1, 1) * params->chunksize * MAP_BLOCKSIZE; - this->ystride = csize.X; //////fix this + + // amount of elements to skip for the next index + // for noise/height/biome maps (not vmanip) + this->ystride = csize.X; + this->zstride = csize.X * csize.Y; this->biomemap = new u8[csize.X * csize.Z]; this->heightmap = new s16[csize.X * csize.Z]; @@ -89,10 +88,15 @@ MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge) // 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_mod = new Noise(¶ms->np_terrain_mod, 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_ridge = new Noise(¶ms->np_ridge, seed, csize.X, csize.Y, 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); + + // 3d terrain noise + noise_mountain = new Noise(¶ms->np_mountain, seed, csize.X, csize.Y, csize.Z); + noise_ridge = new Noise(¶ms->np_ridge, seed, csize.X, csize.Y, csize.Z); // Biome noise noise_heat = new Noise(bmgr->np_heat, seed, csize.X, csize.Z); @@ -102,11 +106,15 @@ MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge) MapgenV7::~MapgenV7() { delete noise_terrain_base; - delete noise_terrain_mod; 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; + delete noise_heat; delete noise_humidity; @@ -117,25 +125,28 @@ MapgenV7::~MapgenV7() { int MapgenV7::getGroundLevelAtPoint(v2s16 p) { - s16 groundlevel = baseTerrainLevelAtPoint(p.X, p.Y); - float heat = NoisePerlin2D(bmgr->np_heat, p.X, p.Y, seed); - float humidity = NoisePerlin2D(bmgr->np_humidity, p.X, p.Y, seed); - Biome *b = bmgr->getBiome(heat, humidity, groundlevel); + // Base terrain calculation + s16 y = baseTerrainLevelAtPoint(p.X, p.Y); - s16 y = groundlevel; - int iters = 1024; // don't even bother iterating more than 64 times.. + // Ridge/river terrain calculation + float width = 0.3; + float uwatern = NoisePerlin2DNoTxfm(noise_ridge_uwater->np, p.X, p.Y, seed) * 2; + // actually computing the depth of the ridge is much more expensive; + // if inside a river, simply guess + if (uwatern >= -width && uwatern <= width) + return water_level - 10; + + // Mountain terrain calculation + int iters = 128; // don't even bother iterating more than 128 times.. while (iters--) { - if (y <= water_level) - break; - - float ridgenoise = NoisePerlin3D(noise_ridge->np, p.X, y, p.Y, seed); - if (ridgenoise * (float)(y * y) < 15.0) - break; + //current point would have been air + if (!getMountainTerrainAtPoint(p.X, y, p.Y)) + return y; - y--; + y++; } - return y + b->top_depth; + return y; } @@ -162,20 +173,6 @@ void MapgenV7::makeChunk(BlockMakeData *data) { full_node_max = (blockpos_max + 2) * MAP_BLOCKSIZE - v3s16(1, 1, 1); blockseed = emerge->getBlockSeed(full_node_min); //////use getBlockSeed2()! - - // Make some noise - calculateNoise(); - - // Calculate height map - s16 stone_surface_max_y = calcHeightMap(); - - // Calculate biomes - BiomeNoiseInput binput; - binput.mapsize = v2s16(csize.X, csize.Z); - binput.heat_map = noise_heat->result; - binput.humidity_map = noise_humidity->result; - binput.height_map = heightmap; - bmgr->calcBiomes(&binput, biomemap); c_stone = ndef->getId("mapgen_stone"); c_dirt = ndef->getId("mapgen_dirt"); @@ -183,17 +180,31 @@ void MapgenV7::makeChunk(BlockMakeData *data) { c_sand = ndef->getId("mapgen_sand"); c_water_source = ndef->getId("mapgen_water_source"); c_lava_source = ndef->getId("mapgen_lava_source"); + c_ice = ndef->getId("default:ice"); + if (c_ice == CONTENT_IGNORE) + c_ice = CONTENT_AIR; - generateTerrain(); - if (this->ridges) - carveRidges(); - - if (flags & MG_CAVES) - generateCaves(stone_surface_max_y); + // Make some noise + calculateNoise(); - addTopNodes(); + // Generate base terrain, mountains, and ridges with initial heightmaps + s16 stone_surface_max_y = generateTerrain(); updateHeightmap(node_min, node_max); + + // Calculate biomes + BiomeNoiseInput binput; + binput.mapsize = v2s16(csize.X, csize.Z); + binput.heat_map = noise_heat->result; + binput.humidity_map = noise_humidity->result; + binput.height_map = heightmap; + bmgr->calcBiomes(&binput, biomemap); + + // Actually place the biome-specific nodes and what not + generateBiomes(); + + if (flags & MG_CAVES) + generateCaves(stone_surface_max_y); if (flags & MG_DUNGEONS) { DungeonGen dgen(ndef, data->seed, water_level); @@ -210,6 +221,9 @@ void MapgenV7::makeChunk(BlockMakeData *data) { ore->placeOre(this, blockseed + i, node_min, node_max); } + // Sprinkle some dust on top after everything else was generated + dustTopNodes(); + //printf("makeChunk: %dms\n", t.stop()); updateLiquid(&data->transforming_liquid, full_node_min, full_node_max); @@ -219,7 +233,7 @@ void MapgenV7::makeChunk(BlockMakeData *data) { node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE); //setLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE, // node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE, 0xFF); - + this->generating = false; } @@ -230,15 +244,14 @@ void MapgenV7::calculateNoise() { int y = node_min.Y; int z = node_min.Z; - noise_terrain_mod->perlinMap2D(x, z); - noise_height_select->perlinMap2D(x, z); noise_height_select->transformNoiseMap(); noise_terrain_persist->perlinMap2D(x, z); + noise_terrain_persist->transformNoiseMap(); float *persistmap = noise_terrain_persist->result; for (int i = 0; i != csize.X * csize.Z; i++) - persistmap[i] = abs(persistmap[i]); + persistmap[i] = rangelim(persistmap[i], 0.4, 0.9); noise_terrain_base->perlinMap2DModulated(x, z, persistmap); noise_terrain_base->transformNoiseMap(); @@ -246,10 +259,20 @@ void MapgenV7::calculateNoise() { noise_terrain_alt->perlinMap2DModulated(x, z, persistmap); noise_terrain_alt->transformNoiseMap(); - noise_ridge->perlinMap3D(x, y, z); + noise_filler_depth->perlinMap2D(x, z); - noise_heat->perlinMap2D(x, z); + if (flags & MGV7_MOUNTAINS) { + noise_mountain->perlinMap3D(x, y, z); + noise_mount_height->perlinMap2D(x, z); + noise_mount_height->transformNoiseMap(); + } + + if (flags & MGV7_RIDGES) { + noise_ridge->perlinMap3D(x, y, z); + noise_ridge_uwater->perlinMap2D(x, z); + } + noise_heat->perlinMap2D(x, z); noise_humidity->perlinMap2D(x, z); //printf("calculateNoise: %dus\n", t.stop()); @@ -264,36 +287,56 @@ Biome *MapgenV7::getBiomeAtPoint(v3s16 p) { return bmgr->getBiome(heat, humidity, groundlevel); } - +//needs to be updated float MapgenV7::baseTerrainLevelAtPoint(int x, int z) { - float terrain_mod = NoisePerlin2DNoTxfm(noise_terrain_mod->np, x, z, seed); - float hselect = NoisePerlin2D(noise_height_select->np, x, z, seed); - float persist = abs(NoisePerlin2DNoTxfm(noise_terrain_persist->np, x, z, seed)); + float hselect = NoisePerlin2D(noise_height_select->np, x, z, seed); + hselect = rangelim(hselect, 0.0, 1.0); + + float persist = NoisePerlin2D(noise_terrain_persist->np, x, z, seed); + persist = rangelim(persist, 0.4, 0.9); noise_terrain_base->np->persist = persist; - float terrain_base = NoisePerlin2D(noise_terrain_base->np, x, z, seed); - float height_base = terrain_base * terrain_mod; + float height_base = NoisePerlin2D(noise_terrain_base->np, x, z, seed); noise_terrain_alt->np->persist = persist; float height_alt = NoisePerlin2D(noise_terrain_alt->np, x, z, seed); + if (height_alt > height_base) + return height_alt; + return (height_base * hselect) + (height_alt * (1.0 - hselect)); } float MapgenV7::baseTerrainLevelFromMap(int index) { - float terrain_mod = noise_terrain_mod->result[index]; - float hselect = noise_height_select->result[index]; - float terrain_base = noise_terrain_base->result[index]; - float height_base = terrain_base * terrain_mod; - float height_alt = noise_terrain_alt->result[index]; + float hselect = rangelim(noise_height_select->result[index], 0.0, 1.0); + float height_base = noise_terrain_base->result[index]; + float height_alt = noise_terrain_alt->result[index]; + + if (height_alt > height_base) + return height_alt; return (height_base * hselect) + (height_alt * (1.0 - hselect)); } +bool MapgenV7::getMountainTerrainAtPoint(int x, int y, int z) { + float mnt_h_n = NoisePerlin2D(noise_mount_height->np, x, z, seed); + float height_modifier = -((float)y / rangelim(mnt_h_n, 80.0, 150.0)); + float mnt_n = NoisePerlin3D(noise_mountain->np, x, y, z, seed); + + return mnt_n + height_modifier >= 0.6; +} + + +bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, int y) { + float mounthn = noise_mount_height->result[idx_xz]; + float height_modifier = -((float)y / rangelim(mounthn, 80.0, 150.0)); + return (noise_mountain->result[idx_xyz] + height_modifier >= 0.6); +} + + #if 0 -// Crap code to test log rivers as a proof-of-concept. Didn't work out too well. void MapgenV7::carveRivers() { MapNode n_air(CONTENT_AIR), n_water_source(c_water_source); MapNode n_stone(c_stone); @@ -328,8 +371,26 @@ void MapgenV7::carveRivers() { #endif -int MapgenV7::calcHeightMap() { +int MapgenV7::generateTerrain() { + int ymax = generateBaseTerrain(); + + if (flags & MGV7_MOUNTAINS) + generateMountainTerrain(); + + if (flags & MGV7_RIDGES) + generateRidgeTerrain(); + + return ymax; +} + + +int MapgenV7::generateBaseTerrain() { + MapNode n_air(CONTENT_AIR); + MapNode n_stone(c_stone); + MapNode n_water(c_water_source); + int stone_surface_max_y = -MAP_GENERATION_LIMIT; + v3s16 em = vm->m_area.getExtent(); u32 index = 0; for (s16 z = node_min.Z; z <= node_max.Z; z++) @@ -342,46 +403,50 @@ int MapgenV7::calcHeightMap() { if (surface_y > stone_surface_max_y) stone_surface_max_y = surface_y; - } - - return stone_surface_max_y; -} - -void MapgenV7::generateTerrain() { - MapNode n_air(CONTENT_AIR), n_water_source(c_water_source); - MapNode n_stone(c_stone); - - 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++) { - s16 surface_y = heightmap[index]; - Biome *biome = bmgr->biomes[biomemap[index]]; - - u32 i = vm->m_area.index(x, node_min.Y, z); + u32 i = vm->m_area.index(x, node_min.Y, z); for (s16 y = node_min.Y; y <= node_max.Y; y++) { if (vm->m_data[i].getContent() == CONTENT_IGNORE) { - if (y <= surface_y) { - vm->m_data[i] = (y > water_level + biome->filler_height) ? - MapNode(biome->c_filler) : n_stone; - } else if (y <= water_level) { - vm->m_data[i] = n_water_source; - } else { + if (y <= surface_y) + vm->m_data[i] = n_stone; + else if (y <= water_level) + vm->m_data[i] = n_water; + else vm->m_data[i] = n_air; - } } vm->m_area.add_y(em, i, 1); } } + + return stone_surface_max_y; } -void MapgenV7::carveRidges() { +void MapgenV7::generateMountainTerrain() { if (node_max.Y <= water_level) return; + MapNode n_stone(c_stone); + u32 index = 0; + + for (s16 z = node_min.Z; z <= node_max.Z; z++) + for (s16 y = node_min.Y; y <= node_max.Y; y++) { + u32 vi = vm->m_area.index(node_min.X, y, z); + for (s16 x = node_min.X; x <= node_max.X; x++) { + int j = (z - node_min.Z) * csize.X + (x - node_min.X); + + if (getMountainTerrainFromMap(index, j, y)) + vm->m_data[vi] = n_stone; + + vi++; + index++; + } + } +} + + +void MapgenV7::generateRidgeTerrain() { + MapNode n_water(c_water_source); MapNode n_air(CONTENT_AIR); u32 index = 0; @@ -389,37 +454,150 @@ void MapgenV7::carveRidges() { for (s16 y = node_min.Y; y <= node_max.Y; y++) { u32 vi = vm->m_area.index(node_min.X, y, z); for (s16 x = node_min.X; x <= node_max.X; x++, index++, vi++) { - // Removing this check will create huge underwater caverns, - // which are interesting but not desirable for gameplay - if (y <= water_level) + int j = (z - node_min.Z) * csize.X + (x - node_min.X); + + if (heightmap[j] < water_level - 4) continue; - - if (noise_ridge->result[index] * (float)(y * y) < 15.0) + + float widthn = (noise_terrain_persist->result[j] - 0.6) / 0.1; + //widthn = rangelim(widthn, -0.05, 0.5); + + float width = 0.3; // TODO: figure out acceptable perlin noise values + float uwatern = noise_ridge_uwater->result[j] * 2; + if (uwatern < -width || uwatern > width) continue; + + float height_mod = (float)(y + 17) / 2.5; + float width_mod = (width - fabs(uwatern)); + float nridge = noise_ridge->result[index] * (float)y / 7.0; - int j = (z - node_min.Z) * csize.Z + (x - node_min.X); //////obviously just temporary + if (y < water_level) + nridge = -fabs(nridge) * 3.0 * widthn * 0.3; + + if (nridge + width_mod * height_mod < 0.6) + continue; + if (y < ridge_heightmap[j]) ridge_heightmap[j] = y - 1; - vm->m_data[vi] = n_air; + vm->m_data[vi] = (y > water_level) ? n_air : n_water; } } } -/* -void MapgenV7::testBiomes() { + +void MapgenV7::generateBiomes() { + 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_min.Z; z++) - for (s16 x = node_min.X; x <= node_min.X; x++) {; - Biome *b = bmgr->getBiome(heat, humidity, 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 = bmgr->biomes[biomemap[index]]; + s16 dfiller = biome->depth_filler + noise_filler_depth->result[index]; + s16 y0_top = biome->depth_top; + s16 y0_filler = biome->depth_filler + biome->depth_top + dfiller; + + 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(); + + // It could be the case that the elevation is equal to the chunk + // boundary, but the chunk above has not been generated yet + if (y == node_max.Y && c_above == CONTENT_IGNORE && + y == heightmap[index] && c == c_stone) { + int j = z * zstride + y * ystride + x; + have_air = !getMountainTerrainFromMap(j, index, y); + } + + 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) { + // A hack to prevent dirt_with_grass from being + // placed below water. TODO: fix later + content_t c_place = ((y < water_level) && + (biome->c_top == c_dirt_with_grass)) ? + c_dirt : biome->c_top; + + vm->m_data[i] = MapNode(c_place); + nplaced++; + } else if (nplaced < y0_filler && nplaced >= y0_top) { + vm->m_data[i] = MapNode(biome->c_filler); + nplaced++; + } else { + have_air = false; + nplaced = 0; + } + } + } else if (c == c_water_source) { + have_air = true; + nplaced = 0; + 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); + } } - // make an 80x80 grid with axes heat/humidity as a voroni diagram for biomes - // clear out y space for it first with air - // use absolute positioning, each chunk will be a +1 height -}*/ +} +void MapgenV7::dustTopNodes() { + v3s16 em = vm->m_area.getExtent(); + u32 index = 0; + + if (water_level > node_max.Y) + return; + + 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 = bmgr->biomes[biomemap[index]]; + + if (biome->c_dust == CONTENT_IGNORE) + continue; + + s16 y = node_max.Y; + 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 (c == biome->c_water && biome->c_dust_water != CONTENT_IGNORE) { + if (y < node_min.Y) + continue; + + vm->m_data[vi] = MapNode(biome->c_dust_water); + } else if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE) { + if (y == node_max.Y) + continue; + + vm->m_area.add_y(em, vi, 1); + vm->m_data[vi] = MapNode(biome->c_dust); + } + } +} + + +#if 0 void MapgenV7::addTopNodes() { v3s16 em = vm->m_area.getExtent(); s16 ntopnodes; @@ -511,6 +689,7 @@ void MapgenV7::addTopNodes() { } } } +#endif #include "mapgen_v6.h" diff --git a/src/mapgen_v7.h b/src/mapgen_v7.h index e39bf7158..e7a72e464 100644 --- a/src/mapgen_v7.h +++ b/src/mapgen_v7.h @@ -24,25 +24,34 @@ with this program; if not, write to the Free Software Foundation, Inc., extern NoiseParams nparams_v7_def_terrain_base; extern NoiseParams nparams_v7_def_terrain_alt; -extern NoiseParams nparams_v7_def_terrain_mod; extern NoiseParams nparams_v7_def_terrain_persist; extern NoiseParams nparams_v7_def_height_select; +extern NoiseParams nparams_v7_def_filler_depth; +extern NoiseParams nparams_v7_def_mount_height; +extern NoiseParams nparams_v7_def_ridge_uwater; +extern NoiseParams nparams_v7_def_mountain; extern NoiseParams nparams_v7_def_ridge; struct MapgenV7Params : public MapgenParams { NoiseParams np_terrain_base; NoiseParams np_terrain_alt; - NoiseParams np_terrain_mod; NoiseParams np_terrain_persist; NoiseParams np_height_select; + NoiseParams np_filler_depth; + NoiseParams np_mount_height; + NoiseParams np_ridge_uwater; + NoiseParams np_mountain; NoiseParams np_ridge; MapgenV7Params() { np_terrain_base = nparams_v7_def_terrain_base; np_terrain_alt = nparams_v7_def_terrain_alt; - np_terrain_mod = nparams_v7_def_terrain_mod; np_terrain_persist = nparams_v7_def_terrain_persist; np_height_select = nparams_v7_def_height_select; + np_filler_depth = nparams_v7_def_filler_depth; + np_mount_height = nparams_v7_def_mount_height; + np_ridge_uwater = nparams_v7_def_ridge_uwater; + np_mountain = nparams_v7_def_mountain; np_ridge = nparams_v7_def_ridge; } @@ -58,8 +67,8 @@ public: BiomeDefManager *bmgr; int ystride; + int zstride; u32 flags; - bool ridges; u32 blockseed; v3s16 node_min; @@ -71,10 +80,12 @@ public: Noise *noise_terrain_base; Noise *noise_terrain_alt; - Noise *noise_terrain_mod; Noise *noise_terrain_persist; Noise *noise_height_select; - + Noise *noise_filler_depth; + Noise *noise_mount_height; + Noise *noise_ridge_uwater; + Noise *noise_mountain; Noise *noise_ridge; Noise *noise_heat; @@ -86,6 +97,7 @@ public: content_t c_sand; content_t c_water_source; content_t c_lava_source; + content_t c_ice; content_t c_gravel; content_t c_cobble; content_t c_desert_sand; @@ -100,15 +112,20 @@ public: float baseTerrainLevelAtPoint(int x, int z); float baseTerrainLevelFromMap(int index); + bool getMountainTerrainAtPoint(int x, int y, int z); + bool getMountainTerrainFromMap(int idx_xyz, int idx_xz, int y); + void calculateNoise(); - int calcHeightMap(); - virtual void generateTerrain(); - void carveRidges(); - //void carveRivers(); //experimental + virtual int generateTerrain(); + int generateBaseTerrain(); + void generateMountainTerrain(); + void generateRidgeTerrain(); + + void generateBiomes(); + void dustTopNodes(); - void testBiomes(); - void addTopNodes(); + //void addTopNodes(); void generateCaves(int max_stone_y); }; diff --git a/src/script/lua_api/luaapi.cpp b/src/script/lua_api/luaapi.cpp index de0c3a670..020d1cf32 100644 --- a/src/script/lua_api/luaapi.cpp +++ b/src/script/lua_api/luaapi.cpp @@ -204,19 +204,33 @@ int ModApiBasic::l_register_biome(lua_State *L) "terrain_type", es_BiomeTerrainType, BIOME_TERRAIN_NORMAL); Biome *b = bmgr->createBiome(terrain); - b->name = getstringfield_default(L, index, "name", ""); - b->top_nodename = getstringfield_default(L, index, "top_node", ""); - b->top_depth = getintfield_default(L, index, "top_depth", 0); - b->filler_nodename = getstringfield_default(L, index, "filler_node", ""); - b->filler_height = getintfield_default(L, index, "filler_height", 0); - b->height_min = getintfield_default(L, index, "height_min", 0); - b->height_max = getintfield_default(L, index, "height_max", 0); - b->heat_point = getfloatfield_default(L, index, "heat_point", 0.); - b->humidity_point = getfloatfield_default(L, index, "humidity_point", 0.); - - b->flags = 0; //reserved - b->c_top = CONTENT_IGNORE; - b->c_filler = CONTENT_IGNORE; + b->name = getstringfield_default(L, index, "name", + ""); + b->nname_top = getstringfield_default(L, index, "node_top", + "mapgen_dirt_with_grass"); + b->nname_filler = getstringfield_default(L, index, "node_filler", + "mapgen_dirt"); + b->nname_water = getstringfield_default(L, index, "node_water", + "mapgen_water_source"); + b->nname_dust = getstringfield_default(L, index, "node_dust", + "air"); + b->nname_dust_water = getstringfield_default(L, index, "node_dust_water", + "mapgen_water_source"); + + b->depth_top = getintfield_default(L, index, "depth_top", 1); + b->depth_filler = getintfield_default(L, index, "depth_filler", 3); + b->height_min = getintfield_default(L, index, "height_min", 0); + b->height_max = getintfield_default(L, index, "height_max", 0); + b->heat_point = getfloatfield_default(L, index, "heat_point", 0.); + b->humidity_point = getfloatfield_default(L, index, "humidity_point", 0.); + + b->flags = 0; //reserved + b->c_top = CONTENT_IGNORE; + b->c_filler = CONTENT_IGNORE; + b->c_water = CONTENT_IGNORE; + b->c_dust = CONTENT_IGNORE; + b->c_dust_water = CONTENT_IGNORE; + verbosestream << "register_biome: " << b->name << std::endl; bmgr->addBiome(b);