mirror of
https://github.com/luanti-org/luanti.git
synced 2025-07-02 16:38:41 +00:00
Vitaliy
Loïc Blot
parent
fc9747eb4b
commit
20a85d76d9
118 changed files with 236 additions and 221 deletions
238
src/mapgen/mg_biome.cpp
Normal file
238
src/mapgen/mg_biome.cpp
Normal file
|
|
@ -0,0 +1,238 @@
|
|||
/*
|
||||
Minetest
|
||||
Copyright (C) 2014-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
|
||||
Copyright (C) 2014-2017 paramat
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU Lesser General Public License as published by
|
||||
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 "mg_biome.h"
|
||||
#include "mg_decoration.h"
|
||||
#include "emerge.h"
|
||||
#include "server.h"
|
||||
#include "nodedef.h"
|
||||
#include "map.h" //for MMVManip
|
||||
#include "util/numeric.h"
|
||||
#include "porting.h"
|
||||
#include "settings.h"
|
||||
|
||||
|
||||
///////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
BiomeManager::BiomeManager(Server *server) :
|
||||
ObjDefManager(server, OBJDEF_BIOME)
|
||||
{
|
||||
m_server = server;
|
||||
|
||||
// Create default biome to be used in case none exist
|
||||
Biome *b = new Biome;
|
||||
|
||||
b->name = "Default";
|
||||
b->flags = 0;
|
||||
b->depth_top = 0;
|
||||
b->depth_filler = -MAX_MAP_GENERATION_LIMIT;
|
||||
b->depth_water_top = 0;
|
||||
b->depth_riverbed = 0;
|
||||
b->y_min = -MAX_MAP_GENERATION_LIMIT;
|
||||
b->y_max = MAX_MAP_GENERATION_LIMIT;
|
||||
b->heat_point = 0.0;
|
||||
b->humidity_point = 0.0;
|
||||
|
||||
b->m_nodenames.emplace_back("mapgen_stone");
|
||||
b->m_nodenames.emplace_back("mapgen_stone");
|
||||
b->m_nodenames.emplace_back("mapgen_stone");
|
||||
b->m_nodenames.emplace_back("mapgen_water_source");
|
||||
b->m_nodenames.emplace_back("mapgen_water_source");
|
||||
b->m_nodenames.emplace_back("mapgen_river_water_source");
|
||||
b->m_nodenames.emplace_back("mapgen_stone");
|
||||
b->m_nodenames.emplace_back("ignore");
|
||||
m_ndef->pendNodeResolve(b);
|
||||
|
||||
add(b);
|
||||
}
|
||||
|
||||
|
||||
void BiomeManager::clear()
|
||||
{
|
||||
EmergeManager *emerge = m_server->getEmergeManager();
|
||||
|
||||
// Remove all dangling references in Decorations
|
||||
DecorationManager *decomgr = emerge->decomgr;
|
||||
for (size_t i = 0; i != decomgr->getNumObjects(); i++) {
|
||||
Decoration *deco = (Decoration *)decomgr->getRaw(i);
|
||||
deco->biomes.clear();
|
||||
}
|
||||
|
||||
// Don't delete the first biome
|
||||
for (size_t i = 1; i < m_objects.size(); i++)
|
||||
delete (Biome *)m_objects[i];
|
||||
|
||||
m_objects.resize(1);
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
void BiomeParamsOriginal::readParams(const Settings *settings)
|
||||
{
|
||||
settings->getNoiseParams("mg_biome_np_heat", np_heat);
|
||||
settings->getNoiseParams("mg_biome_np_heat_blend", np_heat_blend);
|
||||
settings->getNoiseParams("mg_biome_np_humidity", np_humidity);
|
||||
settings->getNoiseParams("mg_biome_np_humidity_blend", np_humidity_blend);
|
||||
}
|
||||
|
||||
|
||||
void BiomeParamsOriginal::writeParams(Settings *settings) const
|
||||
{
|
||||
settings->setNoiseParams("mg_biome_np_heat", np_heat);
|
||||
settings->setNoiseParams("mg_biome_np_heat_blend", np_heat_blend);
|
||||
settings->setNoiseParams("mg_biome_np_humidity", np_humidity);
|
||||
settings->setNoiseParams("mg_biome_np_humidity_blend", np_humidity_blend);
|
||||
}
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
BiomeGenOriginal::BiomeGenOriginal(BiomeManager *biomemgr,
|
||||
BiomeParamsOriginal *params, v3s16 chunksize)
|
||||
{
|
||||
m_bmgr = biomemgr;
|
||||
m_params = params;
|
||||
m_csize = chunksize;
|
||||
|
||||
noise_heat = new Noise(¶ms->np_heat,
|
||||
params->seed, m_csize.X, m_csize.Z);
|
||||
noise_humidity = new Noise(¶ms->np_humidity,
|
||||
params->seed, m_csize.X, m_csize.Z);
|
||||
noise_heat_blend = new Noise(¶ms->np_heat_blend,
|
||||
params->seed, m_csize.X, m_csize.Z);
|
||||
noise_humidity_blend = new Noise(¶ms->np_humidity_blend,
|
||||
params->seed, m_csize.X, m_csize.Z);
|
||||
|
||||
heatmap = noise_heat->result;
|
||||
humidmap = noise_humidity->result;
|
||||
biomemap = new biome_t[m_csize.X * m_csize.Z];
|
||||
}
|
||||
|
||||
BiomeGenOriginal::~BiomeGenOriginal()
|
||||
{
|
||||
delete []biomemap;
|
||||
|
||||
delete noise_heat;
|
||||
delete noise_humidity;
|
||||
delete noise_heat_blend;
|
||||
delete noise_humidity_blend;
|
||||
}
|
||||
|
||||
|
||||
Biome *BiomeGenOriginal::calcBiomeAtPoint(v3s16 pos) const
|
||||
{
|
||||
float heat =
|
||||
NoisePerlin2D(&m_params->np_heat, pos.X, pos.Z, m_params->seed) +
|
||||
NoisePerlin2D(&m_params->np_heat_blend, pos.X, pos.Z, m_params->seed);
|
||||
float humidity =
|
||||
NoisePerlin2D(&m_params->np_humidity, pos.X, pos.Z, m_params->seed) +
|
||||
NoisePerlin2D(&m_params->np_humidity_blend, pos.X, pos.Z, m_params->seed);
|
||||
|
||||
return calcBiomeFromNoise(heat, humidity, pos.Y);
|
||||
}
|
||||
|
||||
|
||||
void BiomeGenOriginal::calcBiomeNoise(v3s16 pmin)
|
||||
{
|
||||
m_pmin = pmin;
|
||||
|
||||
noise_heat->perlinMap2D(pmin.X, pmin.Z);
|
||||
noise_humidity->perlinMap2D(pmin.X, pmin.Z);
|
||||
noise_heat_blend->perlinMap2D(pmin.X, pmin.Z);
|
||||
noise_humidity_blend->perlinMap2D(pmin.X, pmin.Z);
|
||||
|
||||
for (s32 i = 0; i < m_csize.X * m_csize.Z; i++) {
|
||||
noise_heat->result[i] += noise_heat_blend->result[i];
|
||||
noise_humidity->result[i] += noise_humidity_blend->result[i];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
biome_t *BiomeGenOriginal::getBiomes(s16 *heightmap)
|
||||
{
|
||||
for (s32 i = 0; i != m_csize.X * m_csize.Z; i++) {
|
||||
Biome *biome = calcBiomeFromNoise(
|
||||
noise_heat->result[i],
|
||||
noise_humidity->result[i],
|
||||
heightmap[i]);
|
||||
|
||||
biomemap[i] = biome->index;
|
||||
}
|
||||
|
||||
return biomemap;
|
||||
}
|
||||
|
||||
|
||||
Biome *BiomeGenOriginal::getBiomeAtPoint(v3s16 pos) const
|
||||
{
|
||||
return getBiomeAtIndex(
|
||||
(pos.Z - m_pmin.Z) * m_csize.X + (pos.X - m_pmin.X),
|
||||
pos.Y);
|
||||
}
|
||||
|
||||
|
||||
Biome *BiomeGenOriginal::getBiomeAtIndex(size_t index, s16 y) const
|
||||
{
|
||||
return calcBiomeFromNoise(
|
||||
noise_heat->result[index],
|
||||
noise_humidity->result[index],
|
||||
y);
|
||||
}
|
||||
|
||||
|
||||
Biome *BiomeGenOriginal::calcBiomeFromNoise(float heat, float humidity, s16 y) const
|
||||
{
|
||||
Biome *b, *biome_closest = NULL;
|
||||
float dist_min = FLT_MAX;
|
||||
|
||||
for (size_t i = 1; i < m_bmgr->getNumObjects(); i++) {
|
||||
b = (Biome *)m_bmgr->getRaw(i);
|
||||
if (!b || y > b->y_max || y < b->y_min)
|
||||
continue;
|
||||
|
||||
float d_heat = heat - b->heat_point;
|
||||
float d_humidity = humidity - b->humidity_point;
|
||||
float dist = (d_heat * d_heat) +
|
||||
(d_humidity * d_humidity);
|
||||
if (dist < dist_min) {
|
||||
dist_min = dist;
|
||||
biome_closest = b;
|
||||
}
|
||||
}
|
||||
|
||||
return biome_closest ? biome_closest : (Biome *)m_bmgr->getRaw(BIOME_NONE);
|
||||
}
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
void Biome::resolveNodeNames()
|
||||
{
|
||||
getIdFromNrBacklog(&c_top, "mapgen_stone", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_filler, "mapgen_stone", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_stone, "mapgen_stone", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_water_top, "mapgen_water_source", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_water, "mapgen_water_source", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_river_water, "mapgen_river_water_source", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_riverbed, "mapgen_stone", CONTENT_AIR);
|
||||
getIdFromNrBacklog(&c_dust, "ignore", CONTENT_IGNORE);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue