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Biome API: Add noise defined biome blend

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paramat 2015-06-03 08:59:07 +01:00
parent 2da1503780
commit e45ecad3ab
7 changed files with 52 additions and 14 deletions
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4
minetest.conf.example
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@ -532,9 +532,11 @@
# Mgv5 uses eased noise for np_ground so this is shown in group format,
# other noise parameters are shown in positional format to save space.
# Noise parameters for biome API temperature and humidity
# Noise parameters for biome API temperature, humidity and biome blend
#mg_biome_np_heat = 50, 50, (750, 750, 750), 5349, 3, 0.5, 2.0
#mg_biome_np_heat_blend = 0, 1.5, (8, 8, 8), 13, 2, 1.0, 2.0
#mg_biome_np_humidity = 50, 50, (750, 750, 750), 842, 3, 0.5, 2.0
#mg_biome_np_humidity_blend = 0, 1.5, (8, 8, 8), 90003, 2, 1.0, 2.0
#mgv5_np_filler_depth = 0, 1, (150, 150, 150), 261, 4, 0.7, 2.0
#mgv5_np_factor = 0, 1, (250, 250, 250), 920381, 3, 0.45, 2.0

4
src/mapgen.cpp
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@ -445,7 +445,9 @@ void MapgenParams::load(const Settings &settings)
settings.getS16NoEx("chunksize", chunksize);
settings.getFlagStrNoEx("mg_flags", flags, flagdesc_mapgen);
settings.getNoiseParams("mg_biome_np_heat", np_biome_heat);
settings.getNoiseParams("mg_biome_np_heat_blend", np_biome_heat_blend);
settings.getNoiseParams("mg_biome_np_humidity", np_biome_humidity);
settings.getNoiseParams("mg_biome_np_humidity_blend", np_biome_humidity_blend);
delete sparams;
sparams = EmergeManager::createMapgenParams(mg_name);
@ -462,7 +464,9 @@ void MapgenParams::save(Settings &settings) const
settings.setS16("chunksize", chunksize);
settings.setFlagStr("mg_flags", flags, flagdesc_mapgen, (u32)-1);
settings.setNoiseParams("mg_biome_np_heat", np_biome_heat);
settings.setNoiseParams("mg_biome_np_heat_blend", np_biome_heat_blend);
settings.setNoiseParams("mg_biome_np_humidity", np_biome_humidity);
settings.setNoiseParams("mg_biome_np_humidity_blend", np_biome_humidity_blend);
if (sparams)
sparams->writeParams(&settings);

4
src/mapgen.h
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@ -115,7 +115,9 @@ struct MapgenParams {
u32 flags;
NoiseParams np_biome_heat;
NoiseParams np_biome_heat_blend;
NoiseParams np_biome_humidity;
NoiseParams np_biome_humidity_blend;
MapgenSpecificParams *sparams;
@ -126,7 +128,9 @@ struct MapgenParams {
water_level(1),
flags(MG_TREES | MG_CAVES | MG_LIGHT),
np_biome_heat(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 5349, 3, 0.5, 2.0)),
np_biome_heat_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 13, 2, 1.0, 2.0)),
np_biome_humidity(NoiseParams(50, 50, v3f(750.0, 750.0, 750.0), 842, 3, 0.5, 2.0)),
np_biome_humidity_blend(NoiseParams(0, 1.5, v3f(8.0, 8.0, 8.0), 90003, 2, 1.0, 2.0)),
sparams(NULL)
{}

10
src/mapgen_v5.cpp
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@ -75,6 +75,8 @@ MapgenV5::MapgenV5(int mapgenid, MapgenParams *params, EmergeManager *emerge)
// Biome noise
noise_heat = new Noise(&params->np_biome_heat, seed, csize.X, csize.Z);
noise_humidity = new Noise(&params->np_biome_humidity, seed, csize.X, csize.Z);
noise_heat_blend = new Noise(&params->np_biome_heat_blend, seed, csize.X, csize.Z);
noise_humidity_blend = new Noise(&params->np_biome_humidity_blend, seed, csize.X, csize.Z);
//// Resolve nodes to be used
INodeDefManager *ndef = emerge->ndef;
@ -116,6 +118,8 @@ MapgenV5::~MapgenV5()
delete noise_heat;
delete noise_humidity;
delete noise_heat_blend;
delete noise_humidity_blend;
delete[] heightmap;
delete[] biomemap;
@ -330,7 +334,13 @@ void MapgenV5::calculateNoise()
noise_filler_depth->perlinMap2D(x, z);
noise_heat->perlinMap2D(x, z);
noise_humidity->perlinMap2D(x, z);
noise_heat_blend->perlinMap2D(x, z);
noise_humidity_blend->perlinMap2D(x, z);
for (s32 i = 0; i < csize.X * csize.Z; i++) {
noise_heat->result[i] += noise_heat_blend->result[i];
noise_humidity->result[i] += noise_humidity_blend->result[i];
}
//printf("calculateNoise: %dus\n", t.stop());
}

3
src/mapgen_v5.h
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@ -69,8 +69,11 @@ public:
Noise *noise_cave1;
Noise *noise_cave2;
Noise *noise_ground;
Noise *noise_heat;
Noise *noise_humidity;
Noise *noise_heat_blend;
Noise *noise_humidity_blend;
content_t c_stone;
content_t c_water_source;

17
src/mapgen_v7.cpp
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@ -84,6 +84,8 @@ MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge)
//// Biome noise
noise_heat = new Noise(&params->np_biome_heat, seed, csize.X, csize.Z);
noise_humidity = new Noise(&params->np_biome_humidity, seed, csize.X, csize.Z);
noise_heat_blend = new Noise(&params->np_biome_heat_blend, seed, csize.X, csize.Z);
noise_humidity_blend = new Noise(&params->np_biome_humidity_blend, seed, csize.X, csize.Z);
//// Resolve nodes to be used
INodeDefManager *ndef = emerge->ndef;
@ -130,6 +132,8 @@ MapgenV7::~MapgenV7()
delete noise_heat;
delete noise_humidity;
delete noise_heat_blend;
delete noise_humidity_blend;
delete[] ridge_heightmap;
delete[] heightmap;
@ -365,14 +369,23 @@ void MapgenV7::calculateNoise()
noise_filler_depth->perlinMap2D(x, z);
noise_heat->perlinMap2D(x, z);
noise_humidity->perlinMap2D(x, z);
noise_heat_blend->perlinMap2D(x, z);
noise_humidity_blend->perlinMap2D(x, z);
for (s32 i = 0; i < csize.X * csize.Z; i++) {
noise_heat->result[i] += noise_heat_blend->result[i];
noise_humidity->result[i] += noise_humidity_blend->result[i];
}
//printf("calculateNoise: %dus\n", t.stop());
}
Biome *MapgenV7::getBiomeAtPoint(v3s16 p)
{
float heat = NoisePerlin2D(&noise_heat->np, p.X, p.Z, seed);
float humidity = NoisePerlin2D(&noise_humidity->np, p.X, p.Z, seed);
float heat = NoisePerlin2D(&noise_heat->np, p.X, p.Z, seed) +
NoisePerlin2D(&noise_heat_blend->np, p.X, p.Z, seed);
float humidity = NoisePerlin2D(&noise_humidity->np, p.X, p.Z, seed) +
NoisePerlin2D(&noise_humidity_blend->np, p.X, p.Z, seed);
s16 groundlevel = baseTerrainLevelAtPoint(p.X, p.Z);
return bmgr->getBiome(heat, humidity, groundlevel);

2
src/mapgen_v7.h
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@ -82,6 +82,8 @@ public:
Noise *noise_heat;
Noise *noise_humidity;
Noise *noise_heat_blend;
Noise *noise_humidity_blend;
content_t c_stone;
content_t c_water_source;