mirror of https://github.com/minetest/minetest.git
1026 lines
29 KiB
C++
1026 lines
29 KiB
C++
/*
|
|
Minetest
|
|
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
|
|
|
|
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
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "mapgen.h"
|
|
#include "voxel.h"
|
|
#include "noise.h"
|
|
#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
|
|
#include "main.h" // For g_profiler
|
|
#include "emerge.h"
|
|
#include "dungeongen.h"
|
|
#include "cavegen.h"
|
|
#include "treegen.h"
|
|
#include "mg_ore.h"
|
|
#include "mg_decoration.h"
|
|
#include "mapgen_v6.h"
|
|
|
|
FlagDesc flagdesc_mapgen_v6[] = {
|
|
{"jungles", MGV6_JUNGLES},
|
|
{"biomeblend", MGV6_BIOMEBLEND},
|
|
{"mudflow", MGV6_MUDFLOW},
|
|
{NULL, 0}
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
MapgenV6::MapgenV6(int mapgenid, MapgenParams *params, EmergeManager *emerge)
|
|
: Mapgen(mapgenid, params, emerge)
|
|
{
|
|
this->m_emerge = emerge;
|
|
this->ystride = csize.X; //////fix this
|
|
|
|
this->heightmap = new s16[csize.X * csize.Z];
|
|
|
|
initHeightMap(this->heightmap, csize.X * csize.Z);
|
|
|
|
MapgenV6Params *sp = (MapgenV6Params *)params->sparams;
|
|
this->spflags = sp->spflags;
|
|
this->freq_desert = sp->freq_desert;
|
|
this->freq_beach = sp->freq_beach;
|
|
|
|
np_cave = &sp->np_cave;
|
|
np_humidity = &sp->np_humidity;
|
|
np_trees = &sp->np_trees;
|
|
np_apple_trees = &sp->np_apple_trees;
|
|
|
|
//// Create noise objects
|
|
noise_terrain_base = new Noise(&sp->np_terrain_base, seed, csize.X, csize.Y);
|
|
noise_terrain_higher = new Noise(&sp->np_terrain_higher, seed, csize.X, csize.Y);
|
|
noise_steepness = new Noise(&sp->np_steepness, seed, csize.X, csize.Y);
|
|
noise_height_select = new Noise(&sp->np_height_select, seed, csize.X, csize.Y);
|
|
noise_mud = new Noise(&sp->np_mud, seed, csize.X, csize.Y);
|
|
noise_beach = new Noise(&sp->np_beach, seed, csize.X, csize.Y);
|
|
noise_biome = new Noise(&sp->np_biome, seed, csize.X, csize.Y);
|
|
|
|
//// 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_desert_sand = ndef->getId("mapgen_desert_sand");
|
|
c_desert_stone = ndef->getId("mapgen_desert_stone");
|
|
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_desert_sand == CONTENT_IGNORE)
|
|
c_desert_sand = c_sand;
|
|
if (c_desert_stone == CONTENT_IGNORE)
|
|
c_desert_stone = c_stone;
|
|
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;
|
|
}
|
|
|
|
|
|
MapgenV6::~MapgenV6()
|
|
{
|
|
delete noise_terrain_base;
|
|
delete noise_terrain_higher;
|
|
delete noise_steepness;
|
|
delete noise_height_select;
|
|
delete noise_mud;
|
|
delete noise_beach;
|
|
delete noise_biome;
|
|
|
|
delete[] heightmap;
|
|
}
|
|
|
|
|
|
MapgenV6Params::MapgenV6Params()
|
|
{
|
|
spflags = MGV6_BIOMEBLEND | MGV6_MUDFLOW;
|
|
freq_desert = 0.45;
|
|
freq_beach = 0.15;
|
|
|
|
np_terrain_base = NoiseParams(-4, 20.0, v3f(250.0, 250.0, 250.0), 82341, 5, 0.6, 2.0);
|
|
np_terrain_higher = NoiseParams(20, 16.0, v3f(500.0, 500.0, 500.0), 85039, 5, 0.6, 2.0);
|
|
np_steepness = NoiseParams(0.85,0.5, v3f(125.0, 125.0, 125.0), -932, 5, 0.7, 2.0);
|
|
np_height_select = NoiseParams(0, 1.0, v3f(250.0, 250.0, 250.0), 4213, 5, 0.69, 2.0);
|
|
np_mud = NoiseParams(4, 2.0, v3f(200.0, 200.0, 200.0), 91013, 3, 0.55, 2.0);
|
|
np_beach = NoiseParams(0, 1.0, v3f(250.0, 250.0, 250.0), 59420, 3, 0.50, 2.0);
|
|
np_biome = NoiseParams(0, 1.0, v3f(250.0, 250.0, 250.0), 9130, 3, 0.50, 2.0);
|
|
np_cave = NoiseParams(6, 6.0, v3f(250.0, 250.0, 250.0), 34329, 3, 0.50, 2.0);
|
|
np_humidity = NoiseParams(0.5, 0.5, v3f(500.0, 500.0, 500.0), 72384, 4, 0.66, 2.0);
|
|
np_trees = NoiseParams(0, 1.0, v3f(125.0, 125.0, 125.0), 2, 4, 0.66, 2.0);
|
|
np_apple_trees = NoiseParams(0, 1.0, v3f(100.0, 100.0, 100.0), 342902, 3, 0.45, 2.0);
|
|
}
|
|
|
|
|
|
void MapgenV6Params::readParams(Settings *settings)
|
|
{
|
|
settings->getFlagStrNoEx("mgv6_spflags", spflags, flagdesc_mapgen_v6);
|
|
settings->getFloatNoEx("mgv6_freq_desert", freq_desert);
|
|
settings->getFloatNoEx("mgv6_freq_beach", freq_beach);
|
|
|
|
settings->getNoiseParams("mgv6_np_terrain_base", np_terrain_base);
|
|
settings->getNoiseParams("mgv6_np_terrain_higher", np_terrain_higher);
|
|
settings->getNoiseParams("mgv6_np_steepness", np_steepness);
|
|
settings->getNoiseParams("mgv6_np_height_select", np_height_select);
|
|
settings->getNoiseParams("mgv6_np_mud", np_mud);
|
|
settings->getNoiseParams("mgv6_np_beach", np_beach);
|
|
settings->getNoiseParams("mgv6_np_biome", np_biome);
|
|
settings->getNoiseParams("mgv6_np_cave", np_cave);
|
|
settings->getNoiseParams("mgv6_np_humidity", np_humidity);
|
|
settings->getNoiseParams("mgv6_np_trees", np_trees);
|
|
settings->getNoiseParams("mgv6_np_apple_trees", np_apple_trees);
|
|
}
|
|
|
|
|
|
void MapgenV6Params::writeParams(Settings *settings)
|
|
{
|
|
settings->setFlagStr("mgv6_spflags", spflags, flagdesc_mapgen_v6, (u32)-1);
|
|
settings->setFloat("mgv6_freq_desert", freq_desert);
|
|
settings->setFloat("mgv6_freq_beach", freq_beach);
|
|
|
|
settings->setNoiseParams("mgv6_np_terrain_base", np_terrain_base);
|
|
settings->setNoiseParams("mgv6_np_terrain_higher", np_terrain_higher);
|
|
settings->setNoiseParams("mgv6_np_steepness", np_steepness);
|
|
settings->setNoiseParams("mgv6_np_height_select", np_height_select);
|
|
settings->setNoiseParams("mgv6_np_mud", np_mud);
|
|
settings->setNoiseParams("mgv6_np_beach", np_beach);
|
|
settings->setNoiseParams("mgv6_np_biome", np_biome);
|
|
settings->setNoiseParams("mgv6_np_cave", np_cave);
|
|
settings->setNoiseParams("mgv6_np_humidity", np_humidity);
|
|
settings->setNoiseParams("mgv6_np_trees", np_trees);
|
|
settings->setNoiseParams("mgv6_np_apple_trees", np_apple_trees);
|
|
}
|
|
|
|
|
|
//////////////////////// Some helper functions for the map generator
|
|
|
|
|
|
// Returns Y one under area minimum if not found
|
|
s16 MapgenV6::find_stone_level(v2s16 p2d)
|
|
{
|
|
v3s16 em = vm->m_area.getExtent();
|
|
s16 y_nodes_max = vm->m_area.MaxEdge.Y;
|
|
s16 y_nodes_min = vm->m_area.MinEdge.Y;
|
|
u32 i = vm->m_area.index(p2d.X, y_nodes_max, p2d.Y);
|
|
s16 y;
|
|
|
|
for (y = y_nodes_max; y >= y_nodes_min; y--) {
|
|
MapNode &n = vm->m_data[i];
|
|
content_t c = n.getContent();
|
|
if (c != CONTENT_IGNORE && (
|
|
c == c_stone || c == c_desert_stone))
|
|
break;
|
|
|
|
vm->m_area.add_y(em, i, -1);
|
|
}
|
|
return (y >= y_nodes_min) ? y : y_nodes_min - 1;
|
|
}
|
|
|
|
|
|
// Required by mapgen.h
|
|
bool MapgenV6::block_is_underground(u64 seed, v3s16 blockpos)
|
|
{
|
|
/*s16 minimum_groundlevel = (s16)get_sector_minimum_ground_level(
|
|
seed, v2s16(blockpos.X, blockpos.Z));*/
|
|
// Nah, this is just a heuristic, just return something
|
|
s16 minimum_groundlevel = water_level;
|
|
|
|
if(blockpos.Y*MAP_BLOCKSIZE + MAP_BLOCKSIZE <= minimum_groundlevel)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
|
|
//////////////////////// Base terrain height functions
|
|
|
|
float MapgenV6::baseTerrainLevel(float terrain_base, float terrain_higher,
|
|
float steepness, float height_select)
|
|
{
|
|
float base = 1 + terrain_base;
|
|
float higher = 1 + terrain_higher;
|
|
|
|
// Limit higher ground level to at least base
|
|
if(higher < base)
|
|
higher = base;
|
|
|
|
// Steepness factor of cliffs
|
|
float b = steepness;
|
|
b = rangelim(b, 0.0, 1000.0);
|
|
b = 5 * b * b * b * b * b * b * b;
|
|
b = rangelim(b, 0.5, 1000.0);
|
|
|
|
// Values 1.5...100 give quite horrible looking slopes
|
|
if (b > 1.5 && b < 100.0)
|
|
b = (b < 10.0) ? 1.5 : 100.0;
|
|
|
|
float a_off = -0.20; // Offset to more low
|
|
float a = 0.5 + b * (a_off + height_select);
|
|
a = rangelim(a, 0.0, 1.0); // Limit
|
|
|
|
return base * (1.0 - a) + higher * a;
|
|
}
|
|
|
|
|
|
float MapgenV6::baseTerrainLevelFromNoise(v2s16 p)
|
|
{
|
|
if (flags & MG_FLAT)
|
|
return water_level;
|
|
|
|
float terrain_base = NoisePerlin2D_PO(&noise_terrain_base->np,
|
|
p.X, 0.5, p.Y, 0.5, seed);
|
|
float terrain_higher = NoisePerlin2D_PO(&noise_terrain_higher->np,
|
|
p.X, 0.5, p.Y, 0.5, seed);
|
|
float steepness = NoisePerlin2D_PO(&noise_steepness->np,
|
|
p.X, 0.5, p.Y, 0.5, seed);
|
|
float height_select = NoisePerlin2D_PO(&noise_height_select->np,
|
|
p.X, 0.5, p.Y, 0.5, seed);
|
|
|
|
return baseTerrainLevel(terrain_base, terrain_higher,
|
|
steepness, height_select);
|
|
}
|
|
|
|
|
|
float MapgenV6::baseTerrainLevelFromMap(v2s16 p)
|
|
{
|
|
int index = (p.Y - node_min.Z) * ystride + (p.X - node_min.X);
|
|
return baseTerrainLevelFromMap(index);
|
|
}
|
|
|
|
|
|
float MapgenV6::baseTerrainLevelFromMap(int index)
|
|
{
|
|
if (flags & MG_FLAT)
|
|
return water_level;
|
|
|
|
float terrain_base = noise_terrain_base->result[index];
|
|
float terrain_higher = noise_terrain_higher->result[index];
|
|
float steepness = noise_steepness->result[index];
|
|
float height_select = noise_height_select->result[index];
|
|
|
|
return baseTerrainLevel(terrain_base, terrain_higher,
|
|
steepness, height_select);
|
|
}
|
|
|
|
|
|
s16 MapgenV6::find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision)
|
|
{
|
|
return baseTerrainLevelFromNoise(p2d) + AVERAGE_MUD_AMOUNT;
|
|
}
|
|
|
|
|
|
int MapgenV6::getGroundLevelAtPoint(v2s16 p)
|
|
{
|
|
return baseTerrainLevelFromNoise(p) + AVERAGE_MUD_AMOUNT;
|
|
}
|
|
|
|
|
|
//////////////////////// Noise functions
|
|
|
|
float MapgenV6::getMudAmount(v2s16 p)
|
|
{
|
|
int index = (p.Y - node_min.Z) * ystride + (p.X - node_min.X);
|
|
return getMudAmount(index);
|
|
}
|
|
|
|
|
|
bool MapgenV6::getHaveBeach(v2s16 p)
|
|
{
|
|
int index = (p.Y - node_min.Z) * ystride + (p.X - node_min.X);
|
|
return getHaveBeach(index);
|
|
}
|
|
|
|
|
|
BiomeV6Type MapgenV6::getBiome(v2s16 p)
|
|
{
|
|
int index = (p.Y - node_min.Z) * ystride + (p.X - node_min.X);
|
|
return getBiome(index, p);
|
|
}
|
|
|
|
|
|
float MapgenV6::getHumidity(v2s16 p)
|
|
{
|
|
/*double noise = noise2d_perlin(
|
|
0.5+(float)p.X/500, 0.5+(float)p.Y/500,
|
|
seed+72384, 4, 0.66);
|
|
noise = (noise + 1.0)/2.0;*/
|
|
|
|
float noise = NoisePerlin2D(np_humidity, p.X, p.Y, seed);
|
|
|
|
if (noise < 0.0)
|
|
noise = 0.0;
|
|
if (noise > 1.0)
|
|
noise = 1.0;
|
|
return noise;
|
|
}
|
|
|
|
|
|
float MapgenV6::getTreeAmount(v2s16 p)
|
|
{
|
|
/*double noise = noise2d_perlin(
|
|
0.5+(float)p.X/125, 0.5+(float)p.Y/125,
|
|
seed+2, 4, 0.66);*/
|
|
|
|
float noise = NoisePerlin2D(np_trees, p.X, p.Y, seed);
|
|
float zeroval = -0.39;
|
|
if (noise < zeroval)
|
|
return 0;
|
|
else
|
|
return 0.04 * (noise-zeroval) / (1.0-zeroval);
|
|
}
|
|
|
|
|
|
bool MapgenV6::getHaveAppleTree(v2s16 p)
|
|
{
|
|
/*is_apple_tree = noise2d_perlin(
|
|
0.5+(float)p.X/100, 0.5+(float)p.Z/100,
|
|
data->seed+342902, 3, 0.45) > 0.2;*/
|
|
|
|
float noise = NoisePerlin2D(np_apple_trees, p.X, p.Y, seed);
|
|
|
|
return noise > 0.2;
|
|
}
|
|
|
|
|
|
float MapgenV6::getMudAmount(int index)
|
|
{
|
|
if (flags & MG_FLAT)
|
|
return AVERAGE_MUD_AMOUNT;
|
|
|
|
/*return ((float)AVERAGE_MUD_AMOUNT + 2.0 * noise2d_perlin(
|
|
0.5+(float)p.X/200, 0.5+(float)p.Y/200,
|
|
seed+91013, 3, 0.55));*/
|
|
|
|
return noise_mud->result[index];
|
|
}
|
|
|
|
|
|
bool MapgenV6::getHaveBeach(int index)
|
|
{
|
|
// Determine whether to have sand here
|
|
/*double sandnoise = noise2d_perlin(
|
|
0.2+(float)p2d.X/250, 0.7+(float)p2d.Y/250,
|
|
seed+59420, 3, 0.50);*/
|
|
|
|
float sandnoise = noise_beach->result[index];
|
|
return (sandnoise > freq_beach);
|
|
}
|
|
|
|
|
|
BiomeV6Type MapgenV6::getBiome(int index, v2s16 p)
|
|
{
|
|
// Just do something very simple as for now
|
|
/*double d = noise2d_perlin(
|
|
0.6+(float)p2d.X/250, 0.2+(float)p2d.Y/250,
|
|
seed+9130, 3, 0.50);*/
|
|
|
|
float d = noise_biome->result[index];
|
|
if (d > freq_desert)
|
|
return BT_DESERT;
|
|
|
|
if ((spflags & MGV6_BIOMEBLEND) &&
|
|
(d > freq_desert - 0.10) &&
|
|
((noise2d(p.X, p.Y, seed) + 1.0) > (freq_desert - d) * 20.0))
|
|
return BT_DESERT;
|
|
|
|
return BT_NORMAL;
|
|
}
|
|
|
|
|
|
u32 MapgenV6::get_blockseed(u64 seed, v3s16 p)
|
|
{
|
|
s32 x=p.X, y=p.Y, z=p.Z;
|
|
return (u32)(seed%0x100000000ULL) + z*38134234 + y*42123 + x*23;
|
|
}
|
|
|
|
|
|
//////////////////////// Map generator
|
|
|
|
void MapgenV6::makeChunk(BlockMakeData *data)
|
|
{
|
|
assert(data->vmanip);
|
|
assert(data->nodedef);
|
|
assert(data->blockpos_requested.X >= data->blockpos_min.X &&
|
|
data->blockpos_requested.Y >= data->blockpos_min.Y &&
|
|
data->blockpos_requested.Z >= data->blockpos_min.Z);
|
|
assert(data->blockpos_requested.X <= data->blockpos_max.X &&
|
|
data->blockpos_requested.Y <= data->blockpos_max.Y &&
|
|
data->blockpos_requested.Z <= data->blockpos_max.Z);
|
|
|
|
this->generating = true;
|
|
this->vm = data->vmanip;
|
|
this->ndef = data->nodedef;
|
|
|
|
// Hack: use minimum block coords for old code that assumes a single block
|
|
v3s16 blockpos_min = data->blockpos_min;
|
|
v3s16 blockpos_max = data->blockpos_max;
|
|
|
|
// Area of central chunk
|
|
node_min = blockpos_min*MAP_BLOCKSIZE;
|
|
node_max = (blockpos_max+v3s16(1,1,1))*MAP_BLOCKSIZE-v3s16(1,1,1);
|
|
|
|
// Full allocated area
|
|
full_node_min = (blockpos_min-1)*MAP_BLOCKSIZE;
|
|
full_node_max = (blockpos_max+2)*MAP_BLOCKSIZE-v3s16(1,1,1);
|
|
|
|
central_area_size = node_max - node_min + v3s16(1,1,1);
|
|
assert(central_area_size.X == central_area_size.Z);
|
|
|
|
int volume_blocks = (blockpos_max.X - blockpos_min.X + 1)
|
|
* (blockpos_max.Y - blockpos_min.Y + 1)
|
|
* (blockpos_max.Z - blockpos_max.Z + 1);
|
|
|
|
volume_nodes = volume_blocks *
|
|
MAP_BLOCKSIZE * MAP_BLOCKSIZE * MAP_BLOCKSIZE;
|
|
|
|
// Create a block-specific seed
|
|
blockseed = get_blockseed(data->seed, full_node_min);
|
|
|
|
// Make some noise
|
|
calculateNoise();
|
|
|
|
// Maximum height of the stone surface and obstacles.
|
|
// This is used to guide the cave generation
|
|
s16 stone_surface_max_y;
|
|
|
|
// Generate general ground level to full area
|
|
stone_surface_max_y = generateGround();
|
|
|
|
generateExperimental();
|
|
|
|
const s16 max_spread_amount = MAP_BLOCKSIZE;
|
|
// Limit dirt flow area by 1 because mud is flown into neighbors.
|
|
s16 mudflow_minpos = -max_spread_amount + 1;
|
|
s16 mudflow_maxpos = central_area_size.X + max_spread_amount - 2;
|
|
|
|
// Loop this part, it will make stuff look older and newer nicely
|
|
const u32 age_loops = 2;
|
|
for (u32 i_age = 0; i_age < age_loops; i_age++) { // Aging loop
|
|
// Make caves (this code is relatively horrible)
|
|
if (flags & MG_CAVES)
|
|
generateCaves(stone_surface_max_y);
|
|
|
|
// Add mud to the central chunk
|
|
addMud();
|
|
|
|
// Add blobs of dirt and gravel underground
|
|
addDirtGravelBlobs();
|
|
|
|
// Flow mud away from steep edges
|
|
if (spflags & MGV6_MUDFLOW)
|
|
flowMud(mudflow_minpos, mudflow_maxpos);
|
|
|
|
}
|
|
|
|
// Create heightmap after mudflow
|
|
updateHeightmap(node_min, node_max);
|
|
|
|
// Add dungeons
|
|
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 (getBiome(0, v2s16(node_min.X, node_min.Z)) == BT_NORMAL) {
|
|
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 {
|
|
dp.c_cobble = c_sandbrick;
|
|
dp.c_moss = c_sandbrick; // should make this 'cracked sandstone' later
|
|
dp.c_stair = c_stair_sandstone;
|
|
|
|
dp.diagonal_dirs = true;
|
|
dp.mossratio = 0.0;
|
|
dp.holesize = v3s16(2, 3, 2);
|
|
dp.roomsize = v3s16(2, 5, 2);
|
|
dp.notifytype = GENNOTIFY_TEMPLE;
|
|
}
|
|
|
|
DungeonGen dgen(this, &dp);
|
|
dgen.generate(blockseed, full_node_min, full_node_max);
|
|
}
|
|
|
|
// Add top and bottom side of water to transforming_liquid queue
|
|
updateLiquid(&data->transforming_liquid, full_node_min, full_node_max);
|
|
|
|
// Grow grass
|
|
growGrass();
|
|
|
|
// Generate some trees, and add grass, if a jungle
|
|
if (flags & MG_TREES)
|
|
placeTreesAndJungleGrass();
|
|
|
|
// Generate the registered 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);
|
|
|
|
// Calculate lighting
|
|
if (flags & MG_LIGHT)
|
|
calcLighting(node_min, node_max);
|
|
|
|
this->generating = false;
|
|
}
|
|
|
|
|
|
void MapgenV6::calculateNoise()
|
|
{
|
|
int x = node_min.X;
|
|
int z = node_min.Z;
|
|
|
|
if (!(flags & MG_FLAT)) {
|
|
noise_terrain_base->perlinMap2D_PO(x, 0.5, z, 0.5);
|
|
noise_terrain_higher->perlinMap2D_PO(x, 0.5, z, 0.5);
|
|
noise_steepness->perlinMap2D_PO(x, 0.5, z, 0.5);
|
|
noise_height_select->perlinMap2D_PO(x, 0.5, z, 0.5);
|
|
noise_mud->perlinMap2D_PO(x, 0.5, z, 0.5);
|
|
}
|
|
|
|
noise_beach->perlinMap2D_PO(x, 0.2, z, 0.7);
|
|
noise_biome->perlinMap2D_PO(x, 0.6, z, 0.2);
|
|
}
|
|
|
|
|
|
int MapgenV6::generateGround()
|
|
{
|
|
//TimeTaker timer1("Generating ground level");
|
|
MapNode n_air(CONTENT_AIR), n_water_source(c_water_source);
|
|
MapNode n_stone(c_stone), n_desert_stone(c_desert_stone);
|
|
int stone_surface_max_y = -MAP_GENERATION_LIMIT;
|
|
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++) {
|
|
// Surface height
|
|
s16 surface_y = (s16)baseTerrainLevelFromMap(index);
|
|
|
|
// Log it
|
|
if (surface_y > stone_surface_max_y)
|
|
stone_surface_max_y = surface_y;
|
|
|
|
BiomeV6Type bt = getBiome(index, v2s16(x, z));
|
|
|
|
// Fill ground with stone
|
|
v3s16 em = vm->m_area.getExtent();
|
|
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 && bt == BT_DESERT) ?
|
|
n_desert_stone : n_stone;
|
|
} else if (y <= water_level) {
|
|
vm->m_data[i] = n_water_source;
|
|
} else {
|
|
vm->m_data[i] = n_air;
|
|
}
|
|
}
|
|
vm->m_area.add_y(em, i, 1);
|
|
}
|
|
}
|
|
|
|
return stone_surface_max_y;
|
|
}
|
|
|
|
|
|
void MapgenV6::addMud()
|
|
{
|
|
// 15ms @cs=8
|
|
//TimeTaker timer1("add mud");
|
|
MapNode n_dirt(c_dirt), n_gravel(c_gravel);
|
|
MapNode n_sand(c_sand), n_desert_sand(c_desert_sand);
|
|
MapNode addnode;
|
|
|
|
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++) {
|
|
// Randomize mud amount
|
|
s16 mud_add_amount = getMudAmount(index) / 2.0 + 0.5;
|
|
|
|
// Find ground level
|
|
s16 surface_y = find_stone_level(v2s16(x, z)); /////////////////optimize this!
|
|
|
|
// Handle area not found
|
|
if (surface_y == vm->m_area.MinEdge.Y - 1)
|
|
continue;
|
|
|
|
BiomeV6Type bt = getBiome(index, v2s16(x, z));
|
|
addnode = (bt == BT_DESERT) ? n_desert_sand : n_dirt;
|
|
|
|
if (bt == BT_DESERT && surface_y + mud_add_amount <= water_level + 1) {
|
|
addnode = n_sand;
|
|
} else if (mud_add_amount <= 0) {
|
|
mud_add_amount = 1 - mud_add_amount;
|
|
addnode = n_gravel;
|
|
} else if (bt == BT_NORMAL && getHaveBeach(index) &&
|
|
surface_y + mud_add_amount <= water_level + 2) {
|
|
addnode = n_sand;
|
|
}
|
|
|
|
if (bt == BT_DESERT && surface_y > 20)
|
|
mud_add_amount = MYMAX(0, mud_add_amount - (surface_y - 20) / 5);
|
|
|
|
// If topmost node is grass, change it to mud. It might be if it was
|
|
// flown to there from a neighboring chunk and then converted.
|
|
u32 i = vm->m_area.index(x, surface_y, z);
|
|
if (vm->m_data[i].getContent() == c_dirt_with_grass)
|
|
vm->m_data[i] = n_dirt;
|
|
|
|
// Add mud on ground
|
|
s16 mudcount = 0;
|
|
v3s16 em = vm->m_area.getExtent();
|
|
s16 y_start = surface_y + 1;
|
|
i = vm->m_area.index(x, y_start, z);
|
|
for (s16 y = y_start; y <= node_max.Y; y++) {
|
|
if (mudcount >= mud_add_amount)
|
|
break;
|
|
|
|
vm->m_data[i] = addnode;
|
|
mudcount++;
|
|
|
|
vm->m_area.add_y(em, i, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void MapgenV6::flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos)
|
|
{
|
|
// 340ms @cs=8
|
|
TimeTaker timer1("flow mud");
|
|
|
|
// Iterate a few times
|
|
for(s16 k = 0; k < 3; k++) {
|
|
for (s16 z = mudflow_minpos; z <= mudflow_maxpos; z++)
|
|
for (s16 x = mudflow_minpos; x <= mudflow_maxpos; x++) {
|
|
// Invert coordinates every 2nd iteration
|
|
if (k % 2 == 0) {
|
|
x = mudflow_maxpos - (x - mudflow_minpos);
|
|
z = mudflow_maxpos - (z - mudflow_minpos);
|
|
}
|
|
|
|
// Node position in 2d
|
|
v2s16 p2d = v2s16(node_min.X, node_min.Z) + v2s16(x, z);
|
|
|
|
v3s16 em = vm->m_area.getExtent();
|
|
u32 i = vm->m_area.index(p2d.X, node_max.Y, p2d.Y);
|
|
s16 y = node_max.Y;
|
|
|
|
while(y >= node_min.Y)
|
|
{
|
|
|
|
for(;; y--)
|
|
{
|
|
MapNode *n = NULL;
|
|
// Find mud
|
|
for(; y >= node_min.Y; y--) {
|
|
n = &vm->m_data[i];
|
|
if (n->getContent() == c_dirt ||
|
|
n->getContent() == c_dirt_with_grass ||
|
|
n->getContent() == c_gravel)
|
|
break;
|
|
|
|
vm->m_area.add_y(em, i, -1);
|
|
}
|
|
|
|
// Stop if out of area
|
|
//if(vmanip.m_area.contains(i) == false)
|
|
if (y < node_min.Y)
|
|
break;
|
|
|
|
if (n->getContent() == c_dirt ||
|
|
n->getContent() == c_dirt_with_grass)
|
|
{
|
|
// Make it exactly mud
|
|
n->setContent(c_dirt);
|
|
|
|
// Don't flow it if the stuff under it is not mud
|
|
{
|
|
u32 i2 = i;
|
|
vm->m_area.add_y(em, i2, -1);
|
|
// Cancel if out of area
|
|
if(vm->m_area.contains(i2) == false)
|
|
continue;
|
|
MapNode *n2 = &vm->m_data[i2];
|
|
if (n2->getContent() != c_dirt &&
|
|
n2->getContent() != c_dirt_with_grass)
|
|
continue;
|
|
}
|
|
}
|
|
|
|
v3s16 dirs4[4] = {
|
|
v3s16(0,0,1), // back
|
|
v3s16(1,0,0), // right
|
|
v3s16(0,0,-1), // front
|
|
v3s16(-1,0,0), // left
|
|
};
|
|
|
|
// Check that upper is air or doesn't exist.
|
|
// Cancel dropping if upper keeps it in place
|
|
u32 i3 = i;
|
|
vm->m_area.add_y(em, i3, 1);
|
|
if (vm->m_area.contains(i3) == true &&
|
|
ndef->get(vm->m_data[i3]).walkable)
|
|
continue;
|
|
|
|
// Drop mud on side
|
|
for(u32 di=0; di<4; di++) {
|
|
v3s16 dirp = dirs4[di];
|
|
u32 i2 = i;
|
|
// Move to side
|
|
vm->m_area.add_p(em, i2, dirp);
|
|
// Fail if out of area
|
|
if (vm->m_area.contains(i2) == false)
|
|
continue;
|
|
// Check that side is air
|
|
MapNode *n2 = &vm->m_data[i2];
|
|
if (ndef->get(*n2).walkable)
|
|
continue;
|
|
// Check that under side is air
|
|
vm->m_area.add_y(em, i2, -1);
|
|
if (vm->m_area.contains(i2) == false)
|
|
continue;
|
|
n2 = &vm->m_data[i2];
|
|
if (ndef->get(*n2).walkable)
|
|
continue;
|
|
// Loop further down until not air
|
|
bool dropped_to_unknown = false;
|
|
do {
|
|
vm->m_area.add_y(em, i2, -1);
|
|
n2 = &vm->m_data[i2];
|
|
// if out of known area
|
|
if(vm->m_area.contains(i2) == false ||
|
|
n2->getContent() == CONTENT_IGNORE) {
|
|
dropped_to_unknown = true;
|
|
break;
|
|
}
|
|
} while (ndef->get(*n2).walkable == false);
|
|
// Loop one up so that we're in air
|
|
vm->m_area.add_y(em, i2, 1);
|
|
n2 = &vm->m_data[i2];
|
|
|
|
bool old_is_water = (n->getContent() == c_water_source);
|
|
// Move mud to new place
|
|
if (!dropped_to_unknown) {
|
|
*n2 = *n;
|
|
// Set old place to be air (or water)
|
|
if(old_is_water)
|
|
*n = MapNode(c_water_source);
|
|
else
|
|
*n = MapNode(CONTENT_AIR);
|
|
}
|
|
|
|
// Done
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void MapgenV6::addDirtGravelBlobs()
|
|
{
|
|
if (getBiome(v2s16(node_min.X, node_min.Z)) != BT_NORMAL)
|
|
return;
|
|
|
|
PseudoRandom pr(blockseed + 983);
|
|
for (int i = 0; i < volume_nodes/10/10/10; i++) {
|
|
bool only_fill_cave = (myrand_range(0,1) != 0);
|
|
v3s16 size(
|
|
pr.range(1, 8),
|
|
pr.range(1, 8),
|
|
pr.range(1, 8)
|
|
);
|
|
v3s16 p0(
|
|
pr.range(node_min.X, node_max.X) - size.X / 2,
|
|
pr.range(node_min.Y, node_max.Y) - size.Y / 2,
|
|
pr.range(node_min.Z, node_max.Z) - size.Z / 2
|
|
);
|
|
|
|
MapNode n1((p0.Y > -32 && !pr.range(0, 1)) ? c_dirt : c_gravel);
|
|
for (int z1 = 0; z1 < size.Z; z1++)
|
|
for (int y1 = 0; y1 < size.Y; y1++)
|
|
for (int x1 = 0; x1 < size.X; x1++) {
|
|
v3s16 p = p0 + v3s16(x1, y1, z1);
|
|
u32 i = vm->m_area.index(p);
|
|
if (!vm->m_area.contains(i))
|
|
continue;
|
|
// Cancel if not stone and not cave air
|
|
if (vm->m_data[i].getContent() != c_stone &&
|
|
!(vm->m_flags[i] & VMANIP_FLAG_CAVE))
|
|
continue;
|
|
if (only_fill_cave && !(vm->m_flags[i] & VMANIP_FLAG_CAVE))
|
|
continue;
|
|
vm->m_data[i] = n1;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void MapgenV6::placeTreesAndJungleGrass()
|
|
{
|
|
//TimeTaker t("placeTrees");
|
|
if (node_max.Y < water_level)
|
|
return;
|
|
|
|
PseudoRandom grassrandom(blockseed + 53);
|
|
content_t c_junglegrass = ndef->getId("mapgen_junglegrass");
|
|
// if we don't have junglegrass, don't place cignore... that's bad
|
|
if (c_junglegrass == CONTENT_IGNORE)
|
|
c_junglegrass = CONTENT_AIR;
|
|
MapNode n_junglegrass(c_junglegrass);
|
|
v3s16 em = vm->m_area.getExtent();
|
|
|
|
// Divide area into parts
|
|
s16 div = 8;
|
|
s16 sidelen = central_area_size.X / div;
|
|
double area = sidelen * sidelen;
|
|
|
|
// N.B. We must add jungle grass first, since tree leaves will
|
|
// obstruct the ground, giving us a false ground level
|
|
for (s16 z0 = 0; z0 < div; z0++)
|
|
for (s16 x0 = 0; x0 < div; x0++) {
|
|
// Center position of part of division
|
|
v2s16 p2d_center(
|
|
node_min.X + sidelen / 2 + sidelen * x0,
|
|
node_min.Z + sidelen / 2 + sidelen * z0
|
|
);
|
|
// Minimum edge of part of division
|
|
v2s16 p2d_min(
|
|
node_min.X + sidelen * x0,
|
|
node_min.Z + sidelen * z0
|
|
);
|
|
// Maximum edge of part of division
|
|
v2s16 p2d_max(
|
|
node_min.X + sidelen + sidelen * x0 - 1,
|
|
node_min.Z + sidelen + sidelen * z0 - 1
|
|
);
|
|
|
|
// Amount of trees, jungle area
|
|
u32 tree_count = area * getTreeAmount(p2d_center);
|
|
|
|
float humidity;
|
|
bool is_jungle = false;
|
|
if (spflags & MGV6_JUNGLES) {
|
|
humidity = getHumidity(p2d_center);
|
|
if (humidity > 0.75) {
|
|
is_jungle = true;
|
|
tree_count *= 4;
|
|
}
|
|
}
|
|
|
|
// Add jungle grass
|
|
if (is_jungle) {
|
|
u32 grass_count = 5 * humidity * tree_count;
|
|
for (u32 i = 0; i < grass_count; i++) {
|
|
s16 x = grassrandom.range(p2d_min.X, p2d_max.X);
|
|
s16 z = grassrandom.range(p2d_min.Y, p2d_max.Y);
|
|
|
|
s16 y = findGroundLevelFull(v2s16(x, z)); ////////////////optimize this!
|
|
if (y < water_level || y < node_min.Y || y > node_max.Y)
|
|
continue;
|
|
|
|
u32 vi = vm->m_area.index(x, y, z);
|
|
// place on dirt_with_grass, since we know it is exposed to sunlight
|
|
if (vm->m_data[vi].getContent() == c_dirt_with_grass) {
|
|
vm->m_area.add_y(em, vi, 1);
|
|
vm->m_data[vi] = n_junglegrass;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Put trees in random places on part of division
|
|
for (u32 i = 0; i < tree_count; i++) {
|
|
s16 x = myrand_range(p2d_min.X, p2d_max.X);
|
|
s16 z = myrand_range(p2d_min.Y, p2d_max.Y);
|
|
s16 y = findGroundLevelFull(v2s16(x, z)); ////////////////////optimize this!
|
|
// Don't make a tree under water level
|
|
// Don't make a tree so high that it doesn't fit
|
|
if(y < water_level || y > node_max.Y - 6)
|
|
continue;
|
|
|
|
v3s16 p(x,y,z);
|
|
// Trees grow only on mud and grass
|
|
{
|
|
u32 i = vm->m_area.index(p);
|
|
MapNode *n = &vm->m_data[i];
|
|
if (n->getContent() != c_dirt &&
|
|
n->getContent() != c_dirt_with_grass)
|
|
continue;
|
|
}
|
|
p.Y++;
|
|
|
|
// Make a tree
|
|
if (is_jungle) {
|
|
treegen::make_jungletree(*vm, p, ndef, myrand());
|
|
} else {
|
|
bool is_apple_tree = (myrand_range(0, 3) == 0) &&
|
|
getHaveAppleTree(v2s16(x, z));
|
|
treegen::make_tree(*vm, p, is_apple_tree, ndef, myrand());
|
|
}
|
|
}
|
|
}
|
|
//printf("placeTreesAndJungleGrass: %dms\n", t.stop());
|
|
}
|
|
|
|
|
|
void MapgenV6::growGrass()
|
|
{
|
|
for (s16 z = full_node_min.Z; z <= full_node_max.Z; z++)
|
|
for (s16 x = full_node_min.X; x <= full_node_max.X; x++) {
|
|
// Find the lowest surface to which enough light ends up to make
|
|
// grass grow. Basically just wait until not air and not leaves.
|
|
s16 surface_y = 0;
|
|
{
|
|
v3s16 em = vm->m_area.getExtent();
|
|
u32 i = vm->m_area.index(x, node_max.Y, z);
|
|
s16 y;
|
|
// Go to ground level
|
|
for (y = node_max.Y; y >= full_node_min.Y; y--) {
|
|
MapNode &n = vm->m_data[i];
|
|
if (ndef->get(n).param_type != CPT_LIGHT ||
|
|
ndef->get(n).liquid_type != LIQUID_NONE)
|
|
break;
|
|
vm->m_area.add_y(em, i, -1);
|
|
}
|
|
surface_y = (y >= full_node_min.Y) ? y : full_node_min.Y;
|
|
}
|
|
|
|
u32 i = vm->m_area.index(x, surface_y, z);
|
|
MapNode *n = &vm->m_data[i];
|
|
if (n->getContent() == c_dirt && surface_y >= water_level - 20)
|
|
n->setContent(c_dirt_with_grass);
|
|
}
|
|
}
|
|
|
|
|
|
void MapgenV6::generateCaves(int max_stone_y)
|
|
{
|
|
float cave_amount = NoisePerlin2D(np_cave, node_min.X, node_min.Y, seed);
|
|
int volume_nodes = (node_max.X - node_min.X + 1) *
|
|
(node_max.Y - node_min.Y + 1) * MAP_BLOCKSIZE;
|
|
cave_amount = MYMAX(0.0, cave_amount);
|
|
u32 caves_count = cave_amount * volume_nodes / 50000;
|
|
u32 bruises_count = 1;
|
|
PseudoRandom ps(blockseed + 21343);
|
|
PseudoRandom ps2(blockseed + 1032);
|
|
|
|
if (ps.range(1, 6) == 1)
|
|
bruises_count = ps.range(0, ps.range(0, 2));
|
|
|
|
if (getBiome(v2s16(node_min.X, node_min.Z)) == BT_DESERT) {
|
|
caves_count /= 3;
|
|
bruises_count /= 3;
|
|
}
|
|
|
|
for (u32 i = 0; i < caves_count + bruises_count; i++) {
|
|
bool large_cave = (i >= caves_count);
|
|
CaveV6 cave(this, &ps, &ps2, large_cave);
|
|
|
|
cave.makeCave(node_min, node_max, max_stone_y);
|
|
}
|
|
}
|