mirror of
https://github.com/minetest/minetest.git
synced 2024-11-27 10:03:45 +01:00
c427533389
* Modernize various files (src/m*) * range-based for loops * code style * C++ headers instead of C headers * Default operators * empty function Thanks to clang-tidy
277 lines
9.0 KiB
C++
277 lines
9.0 KiB
C++
/*
|
|
Minetest
|
|
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
|
|
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 "content_sao.h"
|
|
#include "nodedef.h"
|
|
#include "voxelalgorithms.h"
|
|
//#include "profiler.h" // For TimeTaker
|
|
#include "settings.h" // For g_settings
|
|
#include "emerge.h"
|
|
#include "dungeongen.h"
|
|
#include "cavegen.h"
|
|
#include "mg_biome.h"
|
|
#include "mg_ore.h"
|
|
#include "mg_decoration.h"
|
|
#include "mapgen_flat.h"
|
|
|
|
|
|
FlagDesc flagdesc_mapgen_flat[] = {
|
|
{"lakes", MGFLAT_LAKES},
|
|
{"hills", MGFLAT_HILLS},
|
|
{NULL, 0}
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
MapgenFlat::MapgenFlat(int mapgenid, MapgenFlatParams *params, EmergeManager *emerge)
|
|
: MapgenBasic(mapgenid, params, emerge)
|
|
{
|
|
spflags = params->spflags;
|
|
ground_level = params->ground_level;
|
|
large_cave_depth = params->large_cave_depth;
|
|
lava_depth = params->lava_depth;
|
|
cave_width = params->cave_width;
|
|
lake_threshold = params->lake_threshold;
|
|
lake_steepness = params->lake_steepness;
|
|
hill_threshold = params->hill_threshold;
|
|
hill_steepness = params->hill_steepness;
|
|
|
|
// 2D noise
|
|
noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z);
|
|
|
|
if ((spflags & MGFLAT_LAKES) || (spflags & MGFLAT_HILLS))
|
|
noise_terrain = new Noise(¶ms->np_terrain, seed, csize.X, csize.Z);
|
|
// 3D noise
|
|
MapgenBasic::np_cave1 = params->np_cave1;
|
|
MapgenBasic::np_cave2 = params->np_cave2;
|
|
}
|
|
|
|
|
|
MapgenFlat::~MapgenFlat()
|
|
{
|
|
delete noise_filler_depth;
|
|
|
|
if ((spflags & MGFLAT_LAKES) || (spflags & MGFLAT_HILLS))
|
|
delete noise_terrain;
|
|
}
|
|
|
|
|
|
MapgenFlatParams::MapgenFlatParams()
|
|
{
|
|
np_terrain = NoiseParams(0, 1, v3f(600, 600, 600), 7244, 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(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 MapgenFlatParams::readParams(const Settings *settings)
|
|
{
|
|
settings->getFlagStrNoEx("mgflat_spflags", spflags, flagdesc_mapgen_flat);
|
|
settings->getS16NoEx("mgflat_ground_level", ground_level);
|
|
settings->getS16NoEx("mgflat_large_cave_depth", large_cave_depth);
|
|
settings->getS16NoEx("mgflat_lava_depth", lava_depth);
|
|
settings->getFloatNoEx("mgflat_cave_width", cave_width);
|
|
settings->getFloatNoEx("mgflat_lake_threshold", lake_threshold);
|
|
settings->getFloatNoEx("mgflat_lake_steepness", lake_steepness);
|
|
settings->getFloatNoEx("mgflat_hill_threshold", hill_threshold);
|
|
settings->getFloatNoEx("mgflat_hill_steepness", hill_steepness);
|
|
|
|
settings->getNoiseParams("mgflat_np_terrain", np_terrain);
|
|
settings->getNoiseParams("mgflat_np_filler_depth", np_filler_depth);
|
|
settings->getNoiseParams("mgflat_np_cave1", np_cave1);
|
|
settings->getNoiseParams("mgflat_np_cave2", np_cave2);
|
|
}
|
|
|
|
|
|
void MapgenFlatParams::writeParams(Settings *settings) const
|
|
{
|
|
settings->setFlagStr("mgflat_spflags", spflags, flagdesc_mapgen_flat, U32_MAX);
|
|
settings->setS16("mgflat_ground_level", ground_level);
|
|
settings->setS16("mgflat_large_cave_depth", large_cave_depth);
|
|
settings->setS16("mgflat_lava_depth", lava_depth);
|
|
settings->setFloat("mgflat_cave_width", cave_width);
|
|
settings->setFloat("mgflat_lake_threshold", lake_threshold);
|
|
settings->setFloat("mgflat_lake_steepness", lake_steepness);
|
|
settings->setFloat("mgflat_hill_threshold", hill_threshold);
|
|
settings->setFloat("mgflat_hill_steepness", hill_steepness);
|
|
|
|
settings->setNoiseParams("mgflat_np_terrain", np_terrain);
|
|
settings->setNoiseParams("mgflat_np_filler_depth", np_filler_depth);
|
|
settings->setNoiseParams("mgflat_np_cave1", np_cave1);
|
|
settings->setNoiseParams("mgflat_np_cave2", np_cave2);
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////
|
|
|
|
|
|
int MapgenFlat::getSpawnLevelAtPoint(v2s16 p)
|
|
{
|
|
s16 level_at_point = ground_level;
|
|
float n_terrain = 0.0f;
|
|
if ((spflags & MGFLAT_LAKES) || (spflags & MGFLAT_HILLS))
|
|
n_terrain = NoisePerlin2D(&noise_terrain->np, p.X, p.Y, seed);
|
|
|
|
if ((spflags & MGFLAT_LAKES) && n_terrain < lake_threshold) {
|
|
level_at_point = ground_level -
|
|
(lake_threshold - n_terrain) * lake_steepness;
|
|
} else if ((spflags & MGFLAT_HILLS) && n_terrain > hill_threshold) {
|
|
level_at_point = ground_level +
|
|
(n_terrain - hill_threshold) * hill_steepness;
|
|
}
|
|
|
|
if (ground_level < water_level) // Ocean world, allow spawn in water
|
|
return MYMAX(level_at_point, water_level);
|
|
|
|
if (level_at_point > water_level)
|
|
return level_at_point; // Spawn on land
|
|
|
|
return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point
|
|
}
|
|
|
|
|
|
void MapgenFlat::makeChunk(BlockMakeData *data)
|
|
{
|
|
// Pre-conditions
|
|
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;
|
|
//TimeTaker t("makeChunk");
|
|
|
|
v3s16 blockpos_min = data->blockpos_min;
|
|
v3s16 blockpos_max = data->blockpos_max;
|
|
node_min = blockpos_min * MAP_BLOCKSIZE;
|
|
node_max = (blockpos_max + v3s16(1, 1, 1)) * MAP_BLOCKSIZE - v3s16(1, 1, 1);
|
|
full_node_min = (blockpos_min - 1) * MAP_BLOCKSIZE;
|
|
full_node_max = (blockpos_max + 2) * MAP_BLOCKSIZE - v3s16(1, 1, 1);
|
|
|
|
blockseed = getBlockSeed2(full_node_min, seed);
|
|
|
|
// Generate base terrain, mountains, and ridges with initial heightmaps
|
|
s16 stone_surface_max_y = generateTerrain();
|
|
|
|
// Create heightmap
|
|
updateHeightmap(node_min, node_max);
|
|
|
|
// Init biome generator, place biome-specific nodes, and build biomemap
|
|
biomegen->calcBiomeNoise(node_min);
|
|
|
|
MgStoneType mgstone_type;
|
|
content_t biome_stone;
|
|
generateBiomes(&mgstone_type, &biome_stone, water_level - 1);
|
|
|
|
if (flags & MG_CAVES)
|
|
generateCaves(stone_surface_max_y, large_cave_depth);
|
|
|
|
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, water_level - 1);
|
|
|
|
// Generate the registered ores
|
|
m_emerge->oremgr->placeAllOres(this, blockseed,
|
|
node_min, node_max, water_level - 1);
|
|
|
|
// 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);
|
|
|
|
if (flags & MG_LIGHT)
|
|
calcLighting(node_min - v3s16(0, 1, 0), node_max + v3s16(0, 1, 0),
|
|
full_node_min, full_node_max);
|
|
|
|
//setLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
|
|
// node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE, 0xFF);
|
|
|
|
this->generating = false;
|
|
}
|
|
|
|
|
|
s16 MapgenFlat::generateTerrain()
|
|
{
|
|
MapNode n_air(CONTENT_AIR);
|
|
MapNode n_stone(c_stone);
|
|
MapNode n_water(c_water_source);
|
|
|
|
const v3s16 &em = vm->m_area.getExtent();
|
|
s16 stone_surface_max_y = -MAX_MAP_GENERATION_LIMIT;
|
|
u32 ni2d = 0;
|
|
|
|
bool use_noise = (spflags & MGFLAT_LAKES) || (spflags & MGFLAT_HILLS);
|
|
if (use_noise)
|
|
noise_terrain->perlinMap2D(node_min.X, node_min.Z);
|
|
|
|
for (s16 z = node_min.Z; z <= node_max.Z; z++)
|
|
for (s16 x = node_min.X; x <= node_max.X; x++, ni2d++) {
|
|
s16 stone_level = ground_level;
|
|
float n_terrain = use_noise ? noise_terrain->result[ni2d] : 0.0f;
|
|
|
|
if ((spflags & MGFLAT_LAKES) && n_terrain < lake_threshold) {
|
|
s16 depress = (lake_threshold - n_terrain) * lake_steepness;
|
|
stone_level = ground_level - depress;
|
|
} else if ((spflags & MGFLAT_HILLS) && n_terrain > hill_threshold) {
|
|
s16 rise = (n_terrain - hill_threshold) * hill_steepness;
|
|
stone_level = ground_level + rise;
|
|
}
|
|
|
|
u32 vi = vm->m_area.index(x, node_min.Y - 1, z);
|
|
for (s16 y = node_min.Y - 1; y <= node_max.Y + 1; y++) {
|
|
if (vm->m_data[vi].getContent() == CONTENT_IGNORE) {
|
|
if (y <= stone_level) {
|
|
vm->m_data[vi] = n_stone;
|
|
if (y > stone_surface_max_y)
|
|
stone_surface_max_y = y;
|
|
} else if (y <= water_level) {
|
|
vm->m_data[vi] = n_water;
|
|
} else {
|
|
vm->m_data[vi] = n_air;
|
|
}
|
|
}
|
|
vm->m_area.add_y(em, vi, 1);
|
|
}
|
|
}
|
|
|
|
return stone_surface_max_y;
|
|
}
|