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cn.nukkit.level.biome.BiomeSelector Maven / Gradle / Ivy
package cn.nukkit.level.biome;
import cn.nukkit.level.generator.noise.nukkit.f.SimplexF;
import cn.nukkit.math.NukkitRandom;
/**
* @author DaPorkchop_ (Nukkit Project)
*/
//WIP
//do not touch lol
public class BiomeSelector {
private final SimplexF temperature;
private final SimplexF rainfall;
private final SimplexF river;
private final SimplexF ocean;
private final SimplexF hills;
public BiomeSelector(NukkitRandom random) {
this.temperature = new SimplexF(random, 2F, 1F / 8F, 1F / 2048f);
this.rainfall = new SimplexF(random, 2F, 1F / 8F, 1F / 2048f);
this.river = new SimplexF(random, 6f, 2 / 4f, 1 / 1024f);
this.ocean = new SimplexF(random, 6f, 2 / 4f, 1 / 2048f);
this.hills = new SimplexF(random, 2f, 2 / 4f, 1 / 2048f);
}
public Biome pickBiome(int x, int z) {
/*double noiseOcean = ocean.noise2D(x, z, true);
double noiseTemp = temperature.noise2D(x, z, true);
double noiseRain = rainfall.noise2D(x, z, true);
if (noiseOcean < -0.15) {
if (noiseOcean < -0.9) {
return EnumBiome.MUSHROOM_ISLAND.biome;
} else {
return EnumBiome.OCEAN.biome;
}
}
double noiseRiver = Math.abs(river.noise2D(x, z, true));
if (noiseRiver < 0.04) {
return EnumBiome.RIVER.biome;
}
return EnumBiome.OCEAN.biome;*/
// > using actual biome selectors in 2018
//x >>= 6;
//z >>= 6;
//here's a test for just every biome, for making sure there's no crashes:
//return Biome.unorderedBiomes.get(Math.abs(((int) x >> 5) ^ 6457109 * ((int) z >> 5) ^ 9800471) % Biome.unorderedBiomes.size());
//a couple random high primes: 6457109 9800471 7003231
//here's a test for mesas
/*boolean doPlateau = ocean.noise2D(x, z, true) < 0f;
boolean doF = rainfall.noise2D(x, z, true) < -0.5f;
if (doPlateau) {
boolean doM = temperature.noise2D(x, z, true) < 0f;
if (doM && doF) {
return EnumBiome.MESA_PLATEAU_F_M.biome;
} else if (doM) {
return EnumBiome.MESA_PLATEAU_M.biome;
} else if (doF) {
return EnumBiome.MESA_PLATEAU_F.biome;
} else {
return EnumBiome.MESA_PLATEAU.biome;
}
} else {
return doF ? EnumBiome.MESA_BRYCE.biome : EnumBiome.MESA.biome;
}*/
//here's a test for extreme hills + oceans
/*double noiseOcean = ocean.noise2D(x, z, true);
if (noiseOcean < -0.15f) {
return EnumBiome.OCEAN.biome;
} else if (noiseOcean < -0.19f) {
return EnumBiome.STONE_BEACH.biome;
} else {
boolean plus = temperature.noise2D(x, z, true) < 0f;
boolean m = rainfall.noise2D(x, z, true) < 0f;
if (plus && m) {
return EnumBiome.EXTREME_HILLS_PLUS_M.biome;
} else if (m) {
return EnumBiome.EXTREME_HILLS_M.biome;
} else if (plus) {
return EnumBiome.EXTREME_HILLS_PLUS.biome;
} else {
return EnumBiome.EXTREME_HILLS.biome;
}
}*/
float noiseOcean = ocean.noise2D(x, z, true);
float noiseRiver = river.noise2D(x, z, true);
float temperature = this.temperature.noise2D(x, z, true);
float rainfall = this.rainfall.noise2D(x, z, true);
EnumBiome biome;
if (noiseOcean < -0.15f) {
if (noiseOcean < -0.91f) {
if (noiseOcean < -0.92f) {
biome = EnumBiome.MUSHROOM_ISLAND;
} else {
biome = EnumBiome.MUSHROOM_ISLAND_SHORE;
}
} else {
if (rainfall < 0f) {
if (temperature < -0.4f) {
biome = EnumBiome.FROZEN_OCEAN;
} else if (temperature < 0f) {
biome = EnumBiome.COLD_OCEAN;
} else if (temperature < 0.35f) {
biome = EnumBiome.OCEAN;
} else if (temperature < 0.6f) {
biome = EnumBiome.LUKEWARM_OCEAN;
} else {
biome = EnumBiome.WARM_OCEAN;
}
} else {
if (temperature < -0.4f) {
biome = EnumBiome.DEEP_FROZEN_OCEAN;
} else if (temperature < 0f) {
biome = EnumBiome.DEEP_COLD_OCEAN;
} else if (temperature < 0.4f) {
biome = EnumBiome.DEEP_OCEAN;
} else {
biome = EnumBiome.DEEP_LUKEWARM_OCEAN;
}
}
}
} else if (Math.abs(noiseRiver) < 0.04f) {
if (temperature < -0.3f) {
biome = EnumBiome.FROZEN_RIVER;
} else {
biome = EnumBiome.RIVER;
}
} else {
float hills = this.hills.noise2D(x, z, true);
if (temperature < -0.379f) {
//freezing
if (noiseOcean < -0.12f) {
biome = EnumBiome.COLD_BEACH;
} else if (rainfall < 0f) {
if (hills < -0.1f) {
biome = EnumBiome.COLD_TAIGA;
} else if (hills < 0.5f) {
biome = EnumBiome.COLD_TAIGA_HILLS;
} else {
biome = EnumBiome.COLD_TAIGA_M;
}
} else {
if (hills < 0.7f) {
biome = EnumBiome.ICE_PLAINS;
} else {
biome = EnumBiome.ICE_PLAINS_SPIKES;
}
}
} else if (noiseOcean < -0.12f) {
biome = EnumBiome.BEACH;
} else if (temperature < 0f) {
//cold
if (hills < 0.2f) {
if (rainfall < -0.5f) {
biome = EnumBiome.EXTREME_HILLS_M;
} else if (rainfall > 0.5f) {
biome = EnumBiome.EXTREME_HILLS_PLUS_M;
} else if (rainfall < 0f) {
biome = EnumBiome.EXTREME_HILLS;
} else {
biome = EnumBiome.EXTREME_HILLS_PLUS;
}
} else {
if (rainfall < -0.6) {
biome = EnumBiome.MEGA_TAIGA;
} else if (rainfall > 0.6) {
biome = EnumBiome.MEGA_SPRUCE_TAIGA;
} else if (rainfall < 0.2f) {
biome = EnumBiome.TAIGA;
} else {
biome = EnumBiome.TAIGA_M;
}
}
} else if (temperature < 0.5f) {
//normal
if (temperature < 0.25f) {
if (rainfall < 0f) {
if (noiseOcean < 0f) {
biome = EnumBiome.SUNFLOWER_PLAINS;
} else {
biome = EnumBiome.PLAINS;
}
} else if (rainfall < 0.25f) {
if (noiseOcean < 0f) {
biome = EnumBiome.FLOWER_FOREST;
} else {
biome = EnumBiome.FOREST;
}
} else {
if (noiseOcean < 0f) {
biome = EnumBiome.BIRCH_FOREST_M;
} else {
biome = EnumBiome.BIRCH_FOREST;
}
}
} else {
if (rainfall < -0.2f) {
if (noiseOcean < 0f) {
biome = EnumBiome.SWAMPLAND_M;
} else {
biome = EnumBiome.SWAMP;
}
} else if (rainfall > 0.065f && rainfall <= 0.1f) {
if (hills < 0f) {
biome = EnumBiome.BAMBOO_JUNGLE_HILLS;
} else {
biome = EnumBiome.BAMBOO_JUNGLE;
} // TODO: 2022/2/2 修复与原版行为不一致的竹林生成
} else if (rainfall > 0.1f) {
if (noiseOcean < 0.155f) {
biome = EnumBiome.JUNGLE_M;
} else {
biome = EnumBiome.JUNGLE;
}
} else {
if (noiseOcean < 0f) {
biome = EnumBiome.ROOFED_FOREST_M;
} else {
biome = EnumBiome.ROOFED_FOREST;
}
}
}
} else {
//hot
if (rainfall < 0f) {
if (noiseOcean < 0f) {
biome = EnumBiome.DESERT_M;
} else if (hills < 0f) {
biome = EnumBiome.DESERT_HILLS;
} else {
biome = EnumBiome.DESERT;
}
} else if (rainfall > 0.4f) {
if (noiseOcean < 0.155f) {
if (hills < 0f) {
biome = EnumBiome.SAVANNA_PLATEAU_M;
} else {
biome = EnumBiome.SAVANNA_M;
}
} else {
if (hills < 0f) {
biome = EnumBiome.SAVANNA_PLATEAU;
} else {
biome = EnumBiome.SAVANNA;
}
}
} else {
if (noiseOcean < 0f) {
if (hills < 0f) {
biome = EnumBiome.MESA_PLATEAU_F;
} else {
biome = EnumBiome.MESA_PLATEAU_F_M;
}
} else if (hills < 0f) {
if (noiseOcean < 0.2f) {
biome = EnumBiome.MESA_PLATEAU_M;
} else {
biome = EnumBiome.MESA_PLATEAU;
}
} else {
if (noiseOcean < 0.1f) {
biome = EnumBiome.MESA_BRYCE;
} else {
biome = EnumBiome.MESA;
}
}
}
}
}
return biome.biome;
}
}
