/*
Minetest
-Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2010-2015 paramat, Matt Gregory
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 "content_sao.h"
#include "nodedef.h"
#include "voxelalgorithms.h"
-#include "profiler.h"
+//#include "profiler.h" // For TimeTaker
#include "settings.h" // For g_settings
-#include "main.h" // For g_profiler
#include "emerge.h"
#include "dungeongen.h"
#include "cavegen.h"
#include "mg_ore.h"
#include "mg_decoration.h"
#include "mapgen_v5.h"
-#include "util/directiontables.h"
FlagDesc flagdesc_mapgen_v5[] = {
};
-MapgenV5::MapgenV5(int mapgenid, MapgenParams *params, EmergeManager *emerge)
- : Mapgen(mapgenid, params, emerge)
+MapgenV5::MapgenV5(int mapgenid, MapgenV5Params *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;
- this->zstride = csize.X * (csize.Y + 2);
-
- this->biomemap = new u8[csize.X * csize.Z];
- this->heightmap = new s16[csize.X * csize.Z];
-
- initHeightMap(this->heightmap, csize.X * csize.Z);
-
- MapgenV5Params *sp = (MapgenV5Params *)params->sparams;
- this->spflags = sp->spflags;
+ this->spflags = params->spflags;
+ this->cave_width = params->cave_width;
// Terrain noise
- noise_filler_depth = new Noise(&sp->np_filler_depth, seed, csize.X, csize.Z);
- noise_factor = new Noise(&sp->np_factor, seed, csize.X, csize.Z);
- noise_height = new Noise(&sp->np_height, seed, csize.X, csize.Z);
+ noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z);
+ noise_factor = new Noise(¶ms->np_factor, seed, csize.X, csize.Z);
+ noise_height = new Noise(¶ms->np_height, seed, csize.X, csize.Z);
// 3D terrain noise
- noise_cave1 = new Noise(&sp->np_cave1, seed, csize.X, csize.Y + 2, csize.Z);
- noise_cave2 = new Noise(&sp->np_cave2, seed, csize.X, csize.Y + 2, csize.Z);
- noise_ground = new Noise(&sp->np_ground, seed, csize.X, csize.Y + 2, csize.Z);
-
- // Biome noise
- noise_heat = new Noise(¶ms->np_biome_heat, seed, csize.X, csize.Z);
- noise_humidity = new Noise(¶ms->np_biome_humidity, seed, csize.X, csize.Z);
-
- //// Resolve nodes to be used
- INodeDefManager *ndef = emerge->ndef;
-
- c_stone = ndef->getId("mapgen_stone");
- c_dirt = ndef->getId("mapgen_dirt");
- c_dirt_with_grass = ndef->getId("mapgen_dirt_with_grass");
- c_sand = ndef->getId("mapgen_sand");
- c_water_source = ndef->getId("mapgen_water_source");
- c_lava_source = ndef->getId("mapgen_lava_source");
- c_gravel = ndef->getId("mapgen_gravel");
- c_cobble = ndef->getId("mapgen_cobble");
- c_ice = ndef->getId("default:ice");
- c_mossycobble = ndef->getId("mapgen_mossycobble");
- c_sandbrick = ndef->getId("mapgen_sandstonebrick");
- c_stair_cobble = ndef->getId("mapgen_stair_cobble");
- c_stair_sandstone = ndef->getId("mapgen_stair_sandstone");
- if (c_ice == CONTENT_IGNORE)
- c_ice = CONTENT_AIR;
- if (c_mossycobble == CONTENT_IGNORE)
- c_mossycobble = c_cobble;
- if (c_sandbrick == CONTENT_IGNORE)
- c_sandbrick = c_desert_stone;
- if (c_stair_cobble == CONTENT_IGNORE)
- c_stair_cobble = c_cobble;
- if (c_stair_sandstone == CONTENT_IGNORE)
- c_stair_sandstone = c_sandbrick;
+ // 1-up 1-down overgeneration
+ noise_ground = new Noise(¶ms->np_ground, seed, csize.X, csize.Y + 2, csize.Z);
+
+ MapgenBasic::np_cave1 = params->np_cave1;
+ MapgenBasic::np_cave2 = params->np_cave2;
}
delete noise_filler_depth;
delete noise_factor;
delete noise_height;
- delete noise_cave1;
- delete noise_cave2;
delete noise_ground;
-
- delete noise_heat;
- delete noise_humidity;
-
- delete[] heightmap;
- delete[] biomemap;
}
MapgenV5Params::MapgenV5Params()
{
- spflags = 0;
+ spflags = 0;
+ cave_width = 0.125;
np_filler_depth = NoiseParams(0, 1, v3f(150, 150, 150), 261, 4, 0.7, 2.0);
np_factor = NoiseParams(0, 1, v3f(250, 250, 250), 920381, 3, 0.45, 2.0);
//#define CAVE_NOISE_THRESHOLD (1.5/CAVE_NOISE_SCALE) = 0.125
-void MapgenV5Params::readParams(Settings *settings)
+void MapgenV5Params::readParams(const Settings *settings)
{
- settings->getFlagStrNoEx("mgv5_spflags", spflags, flagdesc_mapgen_v5);
+ settings->getFlagStrNoEx("mgv5_spflags", spflags, flagdesc_mapgen_v5);
+ settings->getFloatNoEx("mgv5_cave_width", cave_width);
settings->getNoiseParams("mgv5_np_filler_depth", np_filler_depth);
settings->getNoiseParams("mgv5_np_factor", np_factor);
}
-void MapgenV5Params::writeParams(Settings *settings)
+void MapgenV5Params::writeParams(Settings *settings) const
{
- settings->setFlagStr("mgv5_spflags", spflags, flagdesc_mapgen_v5, (u32)-1);
+ settings->setFlagStr("mgv5_spflags", spflags, flagdesc_mapgen_v5, U32_MAX);
+ settings->setFloat("mgv5_cave_width", cave_width);
settings->setNoiseParams("mgv5_np_filler_depth", np_filler_depth);
settings->setNoiseParams("mgv5_np_factor", np_factor);
}
-int MapgenV5::getGroundLevelAtPoint(v2s16 p)
+int MapgenV5::getSpawnLevelAtPoint(v2s16 p)
{
//TimeTaker t("getGroundLevelAtPoint", NULL, PRECISION_MICRO);
f = 0.01;
else if (f >= 1.0)
f *= 1.6;
- float h = water_level + NoisePerlin2D(&noise_height->np, p.X, p.Y, seed);
+ float h = NoisePerlin2D(&noise_height->np, p.X, p.Y, seed);
- s16 search_top = water_level + 15;
- s16 search_base = water_level;
-
- s16 level = -31000;
- for (s16 y = search_top; y >= search_base; y--) {
+ for (s16 y = 128; y >= -128; y--) {
float n_ground = NoisePerlin3D(&noise_ground->np, p.X, y, p.Y, seed);
- if (n_ground * f > y - h) {
- if (y >= search_top - 7)
- break;
- else
- level = y;
- break;
+
+ if (n_ground * f > y - h) { // If solid
+ // If either top 2 nodes of search are solid this is inside a
+ // mountain or floatland with possibly no space for the player to spawn.
+ if (y >= 127) {
+ return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point
+ } else { // Ground below at least 2 nodes of empty space
+ if (y <= water_level || y > water_level + 16)
+ return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point
+ else
+ return y;
+ }
}
}
//printf("getGroundLevelAtPoint: %dus\n", t.stop());
- return level;
+ return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn position, no ground found
}
data->blockpos_requested.Y <= data->blockpos_max.Y &&
data->blockpos_requested.Z <= data->blockpos_max.Z);
- generating = true;
- vm = data->vmanip;
- ndef = data->nodedef;
+ this->generating = true;
+ this->vm = data->vmanip;
+ this->ndef = data->nodedef;
//TimeTaker t("makeChunk");
v3s16 blockpos_min = data->blockpos_min;
// Create a block-specific seed
blockseed = getBlockSeed2(full_node_min, seed);
- // Make some noise
- calculateNoise();
-
// Generate base terrain
s16 stone_surface_max_y = generateBaseTerrain();
// Create heightmap
updateHeightmap(node_min, node_max);
- // Create biomemap at heightmap surface
- bmgr->calcBiomes(csize.X, csize.Z, noise_heat->result,
- noise_humidity->result, heightmap, biomemap);
-
- // Actually place the biome-specific nodes
- generateBiomes(noise_heat->result, noise_humidity->result);
+ // Init biome generator, place biome-specific nodes, and build biomemap
+ biomegen->calcBiomeNoise(node_min);
+ MgStoneType stone_type = generateBiomes();
// Generate caves
if ((flags & MG_CAVES) && (stone_surface_max_y >= node_min.Y))
- generateCaves(stone_surface_max_y);
+ generateCaves(stone_surface_max_y, MGV5_LARGE_CAVE_DEPTH);
// Generate dungeons and desert temples
- if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) {
- DungeonGen dgen(this, NULL);
- dgen.generate(blockseed, full_node_min, full_node_max);
- }
+ if (flags & MG_DUNGEONS)
+ generateDungeons(stone_surface_max_y, stone_type);
// Generate the registered decorations
- m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
+ if (flags & MG_DECORATIONS)
+ m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
// Generate the registered ores
m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
}
-void MapgenV5::calculateNoise()
-{
- //TimeTaker t("calculateNoise", NULL, PRECISION_MICRO);
- int x = node_min.X;
- int y = node_min.Y - 1;
- int z = node_min.Z;
-
- noise_factor->perlinMap2D(x, z);
- noise_height->perlinMap2D(x, z);
- noise_ground->perlinMap3D(x, y, z);
-
- if (flags & MG_CAVES) {
- noise_cave1->perlinMap3D(x, y, z);
- noise_cave2->perlinMap3D(x, y, z);
- }
-
- if (node_max.Y >= water_level) {
- noise_filler_depth->perlinMap2D(x, z);
- noise_heat->perlinMap2D(x, z);
- noise_humidity->perlinMap2D(x, z);
- }
-
- //printf("calculateNoise: %dus\n", t.stop());
-}
-
-
//bool is_cave(u32 index) {
// double d1 = contour(noise_cave1->result[index]);
// double d2 = contour(noise_cave2->result[index]);
{
u32 index = 0;
u32 index2d = 0;
- int stone_surface_max_y = -MAP_GENERATION_LIMIT;
+ int stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
+
+ noise_factor->perlinMap2D(node_min.X, node_min.Z);
+ noise_height->perlinMap2D(node_min.X, node_min.Z);
+ noise_ground->perlinMap3D(node_min.X, node_min.Y - 1, 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 i = vm->m_area.index(node_min.X, y, z);
- for (s16 x=node_min.X; x<=node_max.X; x++, i++, index++, index2d++) {
- if (vm->m_data[i].getContent() != CONTENT_IGNORE)
+ u32 vi = vm->m_area.index(node_min.X, y, z);
+ for (s16 x=node_min.X; x<=node_max.X; x++, vi++, index++, index2d++) {
+ if (vm->m_data[vi].getContent() != CONTENT_IGNORE)
continue;
float f = 0.55 + noise_factor->result[index2d];
if (noise_ground->result[index] * f < y - h) {
if (y <= water_level)
- vm->m_data[i] = MapNode(c_water_source);
+ vm->m_data[vi] = MapNode(c_water_source);
else
- vm->m_data[i] = MapNode(CONTENT_AIR);
+ vm->m_data[vi] = MapNode(CONTENT_AIR);
} else {
- vm->m_data[i] = MapNode(c_stone);
+ vm->m_data[vi] = MapNode(c_stone);
if (y > stone_surface_max_y)
stone_surface_max_y = y;
}
}
- index2d = index2d - ystride;
+ index2d -= ystride;
}
- index2d = index2d + ystride;
+ index2d += ystride;
}
return stone_surface_max_y;
}
-
-
-void MapgenV5::generateBiomes(float *heat_map, float *humidity_map)
-{
- 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_max.Z; z++)
- for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
- Biome *biome = NULL;
- s16 dfiller = 0;
- s16 y0_top = 0;
- s16 y0_filler = 0;
- s16 depth_water_top = 0;
-
- 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();
-
- if (c != CONTENT_IGNORE && c != CONTENT_AIR && (y == node_max.Y || have_air)) {
- biome = bmgr->getBiome(heat_map[index], humidity_map[index], y);
- dfiller = biome->depth_filler + noise_filler_depth->result[index];
- y0_top = biome->depth_top;
- y0_filler = biome->depth_top + dfiller;
- depth_water_top = biome->depth_water_top;
- }
-
- 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) {
- vm->m_data[i] = MapNode(biome->c_top);
- nplaced++;
- } else if (nplaced < y0_filler && nplaced >= y0_top) {
- vm->m_data[i] = MapNode(biome->c_filler);
- nplaced++;
- } else if (c == c_stone) {
- have_air = false;
- nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_stone);
- } else {
- have_air = false;
- nplaced = 0;
- }
- } else if (c == c_stone) {
- have_air = false;
- nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_stone);
- }
- } else if (c == c_stone) {
- have_air = false;
- nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_stone);
- } else if (c == c_water_source) {
- have_air = true;
- nplaced = 0;
- if(y > water_level - depth_water_top)
- vm->m_data[i] = MapNode(biome->c_water_top);
- else
- 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);
- }
- }
-}
-
-
-void MapgenV5::generateCaves(int max_stone_y)
-{
- u32 index = 0;
- u32 index2d = 0;
-
- for (s16 z=node_min.Z; z<=node_max.Z; z++) {
- for (s16 y=node_min.Y - 1; y<=node_max.Y + 1; y++) {
- u32 i = vm->m_area.index(node_min.X, y, z);
- for (s16 x=node_min.X; x<=node_max.X; x++, i++, index++, index2d++) {
- Biome *biome = (Biome *)bmgr->get(biomemap[index2d]);
- content_t c = vm->m_data[i].getContent();
- if (c == CONTENT_AIR
- || (y <= water_level
- && c != biome->c_stone
- && c != c_stone))
- continue;
-
- float d1 = contour(noise_cave1->result[index]);
- float d2 = contour(noise_cave2->result[index]);
- if (d1*d2 > 0.125)
- vm->m_data[i] = MapNode(CONTENT_AIR);
- }
- index2d = index2d - ystride;
- }
- index2d = index2d + ystride;
- }
-
- if (node_max.Y > -256)
- return;
-
- PseudoRandom ps(blockseed + 21343);
- u32 bruises_count = (ps.range(1, 5) == 1) ? ps.range(1, 2) : 0;
- for (u32 i = 0; i < bruises_count; i++) {
- CaveV5 cave(this, &ps);
- cave.makeCave(node_min, node_max, max_stone_y);
- }
-}
-
-
-void MapgenV5::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->get(biomemap[index]);
-
- if (biome->c_dust == CONTENT_IGNORE)
- continue;
-
- s16 y = node_max.Y + 1;
- 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 (!ndef->get(c).buildable_to && c != CONTENT_IGNORE
- && c != biome->c_dust) {
- if (y == node_max.Y + 1)
- continue;
-
- vm->m_area.add_y(em, vi, 1);
- vm->m_data[vi] = MapNode(biome->c_dust);
- }
- }
-}
-
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