/*
Minetest
-Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
-Copyright (C) 2010-2015 paramat, Matt Gregory
+Copyright (C) 2015-2017 paramat
+Copyright (C) 2015-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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
#include "emerge.h"
#include "dungeongen.h"
#include "cavegen.h"
-#include "treegen.h"
#include "mg_biome.h"
#include "mg_ore.h"
#include "mg_decoration.h"
///////////////////////////////////////////////////////////////////////////////////////
-MapgenFractal::MapgenFractal(int mapgenid, MapgenParams *params, EmergeManager *emerge)
- : Mapgen(mapgenid, params, emerge)
+MapgenFractal::MapgenFractal(int mapgenid, MapgenFractalParams *params, EmergeManager *emerge)
+ : MapgenBasic(mapgenid, params, emerge)
{
- this->m_emerge = emerge;
- this->bmgr = emerge->biomemgr;
-
- //// amount of elements to skip for the next index
- //// for noise/height/biome maps (not vmanip)
- this->ystride = csize.X;
- // 1-down overgeneration
- this->zstride_1d = csize.X * (csize.Y + 1);
-
- this->heightmap = new s16[csize.X * csize.Z];
-
- MapgenFractalParams *sp = (MapgenFractalParams *)params->sparams;
-
- this->spflags = sp->spflags;
- this->cave_width = sp->cave_width;
- this->fractal = sp->fractal;
- this->iterations = sp->iterations;
- this->scale = sp->scale;
- this->offset = sp->offset;
- this->slice_w = sp->slice_w;
- this->julia_x = sp->julia_x;
- this->julia_y = sp->julia_y;
- this->julia_z = sp->julia_z;
- this->julia_w = sp->julia_w;
+ spflags = params->spflags;
+ cave_width = params->cave_width;
+ large_cave_depth = params->large_cave_depth;
+ lava_depth = params->lava_depth;
+ fractal = params->fractal;
+ iterations = params->iterations;
+ scale = params->scale;
+ offset = params->offset;
+ slice_w = params->slice_w;
+ julia_x = params->julia_x;
+ julia_y = params->julia_y;
+ julia_z = params->julia_z;
+ julia_w = params->julia_w;
//// 2D terrain noise
- noise_seabed = new Noise(&sp->np_seabed, seed, csize.X, csize.Z);
- noise_filler_depth = new Noise(&sp->np_filler_depth, seed, csize.X, csize.Z);
-
- //// 3D terrain noise
- // 1-down overgeneraion
- noise_cave1 = new Noise(&sp->np_cave1, seed, csize.X, csize.Y + 1, csize.Z);
- noise_cave2 = new Noise(&sp->np_cave2, seed, csize.X, csize.Y + 1, csize.Z);
-
- //// Initialize biome generator
- biomegen = emerge->biomemgr->createBiomeGen(
- BIOMEGEN_ORIGINAL, params->bparams, csize);
- biomemap = biomegen->biomemap;
-
- this->formula = fractal / 2 + fractal % 2;
- this->julia = fractal % 2 == 0;
-
- //// Resolve nodes to be used
- c_stone = ndef->getId("mapgen_stone");
- c_water_source = ndef->getId("mapgen_water_source");
- c_lava_source = ndef->getId("mapgen_lava_source");
- c_desert_stone = ndef->getId("mapgen_desert_stone");
- c_ice = ndef->getId("mapgen_ice");
- c_sandstone = ndef->getId("mapgen_sandstone");
-
- c_cobble = ndef->getId("mapgen_cobble");
- c_stair_cobble = ndef->getId("mapgen_stair_cobble");
- c_mossycobble = ndef->getId("mapgen_mossycobble");
- c_sandstonebrick = ndef->getId("mapgen_sandstonebrick");
- c_stair_sandstonebrick = ndef->getId("mapgen_stair_sandstonebrick");
-
- if (c_ice == CONTENT_IGNORE)
- c_ice = CONTENT_AIR;
- if (c_mossycobble == CONTENT_IGNORE)
- c_mossycobble = c_cobble;
- if (c_stair_cobble == CONTENT_IGNORE)
- c_stair_cobble = c_cobble;
- if (c_sandstonebrick == CONTENT_IGNORE)
- c_sandstonebrick = c_sandstone;
- if (c_stair_sandstonebrick == CONTENT_IGNORE)
- c_stair_sandstonebrick = c_sandstone;
+ noise_seabed = new Noise(¶ms->np_seabed, seed, csize.X, csize.Z);
+ noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z);
+
+ MapgenBasic::np_cave1 = params->np_cave1;
+ MapgenBasic::np_cave2 = params->np_cave2;
+
+ formula = fractal / 2 + fractal % 2;
+ julia = fractal % 2 == 0;
}
{
delete noise_seabed;
delete noise_filler_depth;
- delete noise_cave1;
- delete noise_cave2;
-
- delete biomegen;
-
- delete[] heightmap;
}
MapgenFractalParams::MapgenFractalParams()
{
- spflags = 0;
- cave_width = 0.3;
- fractal = 1;
- iterations = 11;
- scale = v3f(4096.0, 1024.0, 4096.0);
- offset = v3f(1.79, 0.0, 0.0);
- slice_w = 0.0;
- julia_x = 0.33;
- julia_y = 0.33;
- julia_z = 0.33;
- julia_w = 0.33;
-
np_seabed = NoiseParams(-14, 9, v3f(600, 600, 600), 41900, 5, 0.6, 2.0);
np_filler_depth = NoiseParams(0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0);
- np_cave1 = NoiseParams(0, 12, v3f(96, 96, 96), 52534, 4, 0.5, 2.0);
- np_cave2 = NoiseParams(0, 12, v3f(96, 96, 96), 10325, 4, 0.5, 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 MapgenFractalParams::readParams(const Settings *settings)
{
- settings->getFlagStrNoEx("mgfractal_spflags", spflags, flagdesc_mapgen_fractal);
- settings->getFloatNoEx("mgfractal_cave_width", cave_width);
- settings->getU16NoEx("mgfractal_fractal", fractal);
- settings->getU16NoEx("mgfractal_iterations", iterations);
- settings->getV3FNoEx("mgfractal_scale", scale);
- settings->getV3FNoEx("mgfractal_offset", offset);
- settings->getFloatNoEx("mgfractal_slice_w", slice_w);
- settings->getFloatNoEx("mgfractal_julia_x", julia_x);
- settings->getFloatNoEx("mgfractal_julia_y", julia_y);
- settings->getFloatNoEx("mgfractal_julia_z", julia_z);
- settings->getFloatNoEx("mgfractal_julia_w", julia_w);
+ settings->getFlagStrNoEx("mgfractal_spflags", spflags, flagdesc_mapgen_fractal);
+ settings->getFloatNoEx("mgfractal_cave_width", cave_width);
+ settings->getS16NoEx("mgfractal_large_cave_depth", large_cave_depth);
+ settings->getS16NoEx("mgfractal_lava_depth", lava_depth);
+ settings->getU16NoEx("mgfractal_fractal", fractal);
+ settings->getU16NoEx("mgfractal_iterations", iterations);
+ settings->getV3FNoEx("mgfractal_scale", scale);
+ settings->getV3FNoEx("mgfractal_offset", offset);
+ settings->getFloatNoEx("mgfractal_slice_w", slice_w);
+ settings->getFloatNoEx("mgfractal_julia_x", julia_x);
+ settings->getFloatNoEx("mgfractal_julia_y", julia_y);
+ settings->getFloatNoEx("mgfractal_julia_z", julia_z);
+ settings->getFloatNoEx("mgfractal_julia_w", julia_w);
settings->getNoiseParams("mgfractal_np_seabed", np_seabed);
settings->getNoiseParams("mgfractal_np_filler_depth", np_filler_depth);
void MapgenFractalParams::writeParams(Settings *settings) const
{
- settings->setFlagStr("mgfractal_spflags", spflags, flagdesc_mapgen_fractal, U32_MAX);
- settings->setFloat("mgfractal_cave_width", cave_width);
- settings->setU16("mgfractal_fractal", fractal);
- settings->setU16("mgfractal_iterations", iterations);
- settings->setV3F("mgfractal_scale", scale);
- settings->setV3F("mgfractal_offset", offset);
- settings->setFloat("mgfractal_slice_w", slice_w);
- settings->setFloat("mgfractal_julia_x", julia_x);
- settings->setFloat("mgfractal_julia_y", julia_y);
- settings->setFloat("mgfractal_julia_z", julia_z);
- settings->setFloat("mgfractal_julia_w", julia_w);
+ settings->setFlagStr("mgfractal_spflags", spflags, flagdesc_mapgen_fractal, U32_MAX);
+ settings->setFloat("mgfractal_cave_width", cave_width);
+ settings->setS16("mgfractal_large_cave_depth", large_cave_depth);
+ settings->setS16("mgfractal_lava_depth", lava_depth);
+ settings->setU16("mgfractal_fractal", fractal);
+ settings->setU16("mgfractal_iterations", iterations);
+ settings->setV3F("mgfractal_scale", scale);
+ settings->setV3F("mgfractal_offset", offset);
+ settings->setFloat("mgfractal_slice_w", slice_w);
+ settings->setFloat("mgfractal_julia_x", julia_x);
+ settings->setFloat("mgfractal_julia_y", julia_y);
+ settings->setFloat("mgfractal_julia_z", julia_z);
+ settings->setFloat("mgfractal_julia_w", julia_w);
settings->setNoiseParams("mgfractal_np_seabed", np_seabed);
settings->setNoiseParams("mgfractal_np_filler_depth", np_filler_depth);
air_count = 0;
} else if (solid_below) { // Air above solid node
air_count++;
- if (air_count == 2)
+ // 3 to account for snowblock dust
+ if (air_count == 3)
return y - 2;
}
}
blockseed = getBlockSeed2(full_node_min, seed);
- // Make some noise
- calculateNoise();
-
// Generate base terrain, mountains, and ridges with initial heightmaps
s16 stone_surface_max_y = generateTerrain();
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
- biomegen->getBiomes(heightmap);
- MgStoneType stone_type = generateBiomes();
+
+ MgStoneType mgstone_type;
+ content_t biome_stone;
+ generateBiomes(&mgstone_type, &biome_stone, water_level - 1);
if (flags & MG_CAVES)
- generateCaves(stone_surface_max_y);
-
- if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) {
- DungeonParams dp;
-
- dp.np_rarity = nparams_dungeon_rarity;
- dp.np_density = nparams_dungeon_density;
- dp.np_wetness = nparams_dungeon_wetness;
- dp.c_water = c_water_source;
- if (stone_type == STONE) {
- dp.c_cobble = c_cobble;
- dp.c_moss = c_mossycobble;
- dp.c_stair = c_stair_cobble;
-
- dp.diagonal_dirs = false;
- dp.mossratio = 3.0;
- dp.holesize = v3s16(1, 2, 1);
- dp.roomsize = v3s16(0, 0, 0);
- dp.notifytype = GENNOTIFY_DUNGEON;
- } else if (stone_type == DESERT_STONE) {
- dp.c_cobble = c_desert_stone;
- dp.c_moss = c_desert_stone;
- dp.c_stair = c_desert_stone;
-
- dp.diagonal_dirs = true;
- dp.mossratio = 0.0;
- dp.holesize = v3s16(2, 3, 2);
- dp.roomsize = v3s16(2, 5, 2);
- dp.notifytype = GENNOTIFY_TEMPLE;
- } else if (stone_type == SANDSTONE) {
- dp.c_cobble = c_sandstonebrick;
- dp.c_moss = c_sandstonebrick;
- dp.c_stair = c_sandstonebrick;
-
- dp.diagonal_dirs = false;
- dp.mossratio = 0.0;
- dp.holesize = v3s16(2, 2, 2);
- dp.roomsize = v3s16(2, 0, 2);
- dp.notifytype = GENNOTIFY_DUNGEON;
- }
+ generateCaves(stone_surface_max_y, large_cave_depth);
- DungeonGen dgen(this, &dp);
- dgen.generate(blockseed, full_node_min, full_node_max);
- }
+ if (flags & MG_DUNGEONS)
+ 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, water_level - 1);
// 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();
}
-void MapgenFractal::calculateNoise()
-{
- //TimeTaker t("calculateNoise", NULL, PRECISION_MICRO);
- s16 x = node_min.X;
- s16 z = node_min.Z;
-
- noise_seabed->perlinMap2D(x, z);
-
- // Cave noises are calculated in generateCaves()
- // only if solid terrain is present in mapchunk
-
- noise_filler_depth->perlinMap2D(x, z);
-
- //printf("calculateNoise: %dus\n", t.stop());
-}
-
-
bool MapgenFractal::getFractalAtPoint(s16 x, s16 y, s16 z)
{
float cx, cy, cz, cw, ox, oy, oz, ow;
s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
u32 index2d = 0;
+ noise_seabed->perlinMap2D(node_min.X, node_min.Z);
+
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);
return stone_surface_max_y;
}
-
-
-MgStoneType MapgenFractal::generateBiomes()
-{
- v3s16 em = vm->m_area.getExtent();
- u32 index = 0;
- MgStoneType stone_type = STONE;
-
- 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;
- u16 depth_top = 0;
- u16 base_filler = 0;
- u16 depth_water_top = 0;
- u32 vi = vm->m_area.index(x, node_max.Y, z);
-
- // Check node at base of mapchunk above, either a node of a previously
- // generated mapchunk or if not, a node of overgenerated base terrain.
- content_t c_above = vm->m_data[vi + em.X].getContent();
- bool air_above = c_above == CONTENT_AIR;
- bool water_above = c_above == c_water_source;
-
- // If there is air or water above enable top/filler placement, otherwise force
- // nplaced to stone level by setting a number exceeding any possible filler depth.
- u16 nplaced = (air_above || water_above) ? 0 : U16_MAX;
-
-
- for (s16 y = node_max.Y; y >= node_min.Y; y--) {
- content_t c = vm->m_data[vi].getContent();
-
- // Biome is recalculated each time an upper surface is detected while
- // working down a column. The selected biome then remains in effect for
- // all nodes below until the next surface and biome recalculation.
- // Biome is recalculated:
- // 1. At the surface of stone below air or water.
- // 2. At the surface of water below air.
- // 3. When stone or water is detected but biome has not yet been calculated.
- if ((c == c_stone && (air_above || water_above || !biome)) ||
- (c == c_water_source && (air_above || !biome))) {
- biome = biomegen->getBiomeAtIndex(index, y);
-
- depth_top = biome->depth_top;
- base_filler = MYMAX(depth_top + biome->depth_filler
- + noise_filler_depth->result[index], 0);
- depth_water_top = biome->depth_water_top;
-
- // Detect stone type for dungeons during every biome calculation.
- // This is more efficient than detecting per-node and will not
- // miss any desert stone or sandstone biomes.
- if (biome->c_stone == c_desert_stone)
- stone_type = DESERT_STONE;
- else if (biome->c_stone == c_sandstone)
- stone_type = SANDSTONE;
- }
-
- if (c == c_stone) {
- content_t c_below = vm->m_data[vi - em.X].getContent();
-
- // If the node below isn't solid, make this node stone, so that
- // any top/filler nodes above are structurally supported.
- // This is done by aborting the cycle of top/filler placement
- // immediately by forcing nplaced to stone level.
- if (c_below == CONTENT_AIR || c_below == c_water_source)
- nplaced = U16_MAX;
-
- if (nplaced < depth_top) {
- vm->m_data[vi] = MapNode(biome->c_top);
- nplaced++;
- } else if (nplaced < base_filler) {
- vm->m_data[vi] = MapNode(biome->c_filler);
- nplaced++;
- } else {
- vm->m_data[vi] = MapNode(biome->c_stone);
- }
-
- air_above = false;
- water_above = false;
- } else if (c == c_water_source) {
- vm->m_data[vi] = MapNode((y > (s32)(water_level - depth_water_top)) ?
- biome->c_water_top : biome->c_water);
- nplaced = 0; // Enable top/filler placement for next surface
- air_above = false;
- water_above = true;
- } else if (c == CONTENT_AIR) {
- nplaced = 0; // Enable top/filler placement for next surface
- air_above = true;
- water_above = false;
- } else { // Possible various nodes overgenerated from neighbouring mapchunks
- nplaced = U16_MAX; // Disable top/filler placement
- air_above = false;
- water_above = false;
- }
-
- vm->m_area.add_y(em, vi, -1);
- }
- }
-
- return stone_type;
-}
-
-
-void MapgenFractal::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->getRaw(biomemap[index]);
-
- if (biome->c_dust == CONTENT_IGNORE)
- continue;
-
- u32 vi = vm->m_area.index(x, full_node_max.Y, z);
- content_t c_full_max = vm->m_data[vi].getContent();
- s16 y_start;
-
- if (c_full_max == CONTENT_AIR) {
- y_start = full_node_max.Y - 1;
- } else if (c_full_max == CONTENT_IGNORE) {
- vi = vm->m_area.index(x, node_max.Y + 1, z);
- content_t c_max = vm->m_data[vi].getContent();
-
- if (c_max == CONTENT_AIR)
- y_start = node_max.Y;
- else
- continue;
- } else {
- continue;
- }
-
- vi = vm->m_area.index(x, y_start, z);
- for (s16 y = y_start; y >= node_min.Y - 1; 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) {
- vm->m_area.add_y(em, vi, 1);
- vm->m_data[vi] = MapNode(biome->c_dust);
- }
- }
-}
-
-
-void MapgenFractal::generateCaves(s16 max_stone_y)
-{
- if (max_stone_y < node_min.Y)
- return;
-
- noise_cave1->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);
- noise_cave2->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);
-
- v3s16 em = vm->m_area.getExtent();
- 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++) {
- bool column_is_open = false; // Is column open to overground
- bool is_tunnel = false; // Is tunnel or tunnel floor
- u32 vi = vm->m_area.index(x, node_max.Y, z);
- u32 index3d = (z - node_min.Z) * zstride_1d + csize.Y * ystride +
- (x - node_min.X);
- // Biome of column
- Biome *biome = (Biome *)bmgr->getRaw(biomemap[index2d]);
-
- // Don't excavate the overgenerated stone at node_max.Y + 1,
- // this creates a 'roof' over the tunnel, preventing light in
- // tunnels at mapchunk borders when generating mapchunks upwards.
- // This 'roof' is removed when the mapchunk above is generated.
- for (s16 y = node_max.Y; y >= node_min.Y - 1; y--,
- index3d -= ystride,
- vm->m_area.add_y(em, vi, -1)) {
-
- content_t c = vm->m_data[vi].getContent();
- if (c == CONTENT_AIR || c == biome->c_water_top ||
- c == biome->c_water) {
- column_is_open = true;
- continue;
- }
- // Ground
- float d1 = contour(noise_cave1->result[index3d]);
- float d2 = contour(noise_cave2->result[index3d]);
-
- if (d1 * d2 > cave_width && ndef->get(c).is_ground_content) {
- // In tunnel and ground content, excavate
- vm->m_data[vi] = MapNode(CONTENT_AIR);
- is_tunnel = true;
- } else {
- // Not in tunnel or not ground content
- if (is_tunnel && column_is_open &&
- (c == biome->c_filler || c == biome->c_stone))
- // Tunnel entrance floor
- vm->m_data[vi] = MapNode(biome->c_top);
-
- column_is_open = false;
- is_tunnel = false;
- }
- }
- }
-
- if (node_max.Y > MGFRACTAL_LARGE_CAVE_DEPTH)
- return;
-
- PseudoRandom ps(blockseed + 21343);
- u32 bruises_count = ps.range(0, 2);
- for (u32 i = 0; i < bruises_count; i++) {
- CaveV5 cave(this, &ps);
- cave.makeCave(node_min, node_max, max_stone_y);
- }
-}
projects / dragonfireclient.git / blobdiff