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misode.github.io/src/app/previews/BiomeSource.ts
2021-09-24 06:00:27 +02:00

239 lines
10 KiB
TypeScript

import type { BiomeSource, Climate, NoiseOctaves } from 'deepslate'
import { FixedBiome, MultiNoise, NoiseGeneratorSettings, NoiseSampler, NormalNoise, Random } from 'deepslate'
import { fetchPreset } from '../DataFetcher'
import type { VersionId } from '../Schemas'
import { deepClone, deepEqual, square, stringToColor, unwrapLists } from '../Utils'
type BiomeColors = Record<string, number[]>
type BiomeSourceOptions = {
octaves: NoiseOctaves,
biomeColors: BiomeColors,
offset: [number, number],
scale: number,
res: number,
seed: bigint,
version: VersionId,
}
let cacheState: any
let biomeSourceCache: BiomeSource
let climateSamplerCache: Climate.Sampler
export async function biomeMap(state: any, img: ImageData, options: BiomeSourceOptions) {
const { biomeSource, climateSampler } = await getCached(state, options)
const data = img.data
const ox = -options.offset[0] - 100 + options.res / 2
const oz = -options.offset[1] - 100 + options.res / 2
const row = img.width * 4 / options.res
const col = 4 / options.res
for (let x = 0; x < 200; x += options.res) {
for (let z = 0; z < 200; z += options.res) {
const i = z * row + x * col
const worldX = (x + ox) * options.scale
const worldZ = (z + oz) * options.scale
const b = biomeSource.getBiome(worldX, 64, worldZ, climateSampler)
const color = getBiomeColor(b, options.biomeColors)
data[i] = color[0]
data[i + 1] = color[1]
data[i + 2] = color[2]
data[i + 3] = 255
}
}
}
export async function getBiome(state: any, x: number, z: number, options: BiomeSourceOptions): Promise<string | undefined> {
const { biomeSource, climateSampler } = await getCached(state, options)
const [xx, zz] = toWorld([x, z], options)
return biomeSource.getBiome(xx, 64, zz, climateSampler)
}
async function getCached(state: any, options: BiomeSourceOptions): Promise<{ biomeSource: BiomeSource, climateSampler: Climate.Sampler }> {
const newState = [state, options.octaves, `${options.seed}`, options.version]
if (!deepEqual(newState, cacheState)) {
cacheState = deepClone(newState)
biomeSourceCache = await getBiomeSource(state, options)
const settings = NoiseGeneratorSettings.fromJson({ octaves: options.octaves })
const noiseSampler = new NoiseSampler(4, 4, 32, biomeSourceCache, settings.noise, options.octaves, options.seed)
climateSamplerCache = noiseSampler.getClimate.bind(noiseSampler)
}
return {
biomeSource: biomeSourceCache,
climateSampler: climateSamplerCache,
}
}
async function getBiomeSource(state: any, options: BiomeSourceOptions): Promise<BiomeSource> {
switch (state?.type?.replace(/^minecraft:/, '')) {
case 'fixed':
return new FixedBiome(state.biome as string)
case 'checkerboard':
const shift = (state.scale ?? 2) + 2
const numBiomes = state.biomes?.length ?? 0
return {
getBiome(x: number, _y: number, z: number) {
const i = (((x >> shift) + (z >> shift)) % numBiomes + numBiomes) % numBiomes
return (state.biomes?.[i].node as string)
},
}
case 'multi_noise':
switch(state.preset?.replace(/^minecraft:/, '')) {
case 'nether':
state = options.version === '1.18' ? NetherPreset18 : NetherPreset
break
case 'overworld':
state = options.version === '1.18' ? await OverworldPreset18() : state
break
}
if (options.version === '1.18') {
return MultiNoise.fromJson(unwrapLists(state))
} else {
const noise = ['altitude', 'temperature', 'humidity', 'weirdness']
.map((id, i) => {
const config = state[`${id}_noise`]
return new NormalNoise(new Random(options.seed + BigInt(i)), config)
})
if (!Array.isArray(state.biomes) || state.biomes.length === 0) {
return new FixedBiome('unknown')
}
return {
getBiome(x: number, _y: number, z: number): string {
const n = noise.map(n => n.sample(x, z, 0))
let minDist = Infinity
let minBiome = ''
for (const { biome, parameters: p } of unwrapLists(state.biomes)) {
const dist = square(p.altitude - n[0]) + square(p.temperature - n[1]) + square(p.humidity - n[2]) + square(p.weirdness - n[3]) + square(p.offset)
if (dist < minDist) {
minDist = dist
minBiome = biome
}
}
return minBiome
},
}
}
}
throw new Error('Unknown biome source')
}
function getBiomeColor(biome: string, biomeColors: BiomeColors) {
if (!biome) {
return [128, 128, 128]
}
const color = biomeColors[biome] ?? VanillaColors[biome]
if (color === undefined) {
return stringToColor(biome)
}
return color
}
function toWorld([x, z]: [number, number], options: BiomeSourceOptions) {
const xx = (x - options.offset[0] - 100 + options.res / 2) * options.scale
const zz = (z - options.offset[1] - 100 + options.res / 2) * options.scale
return [xx, zz]
}
const VanillaColors: Record<string, [number, number, number]> = {
'minecraft:badlands': [217,69,21],
'minecraft:badlands_plateau': [202,140,101],
'minecraft:bamboo_jungle': [118,142,20],
'minecraft:bamboo_jungle_hills': [59,71,10],
'minecraft:basalt_deltas': [64,54,54],
'minecraft:beach': [250,222,85],
'minecraft:birch_forest': [48,116,68],
'minecraft:birch_forest_hills': [31,95,50],
'minecraft:cold_ocean': [32,32,112],
'minecraft:crimson_forest': [221,8,8],
'minecraft:dark_forest': [64,81,26],
'minecraft:dark_forest_hills': [104,121,66],
'minecraft:deep_cold_ocean': [32,32,56],
'minecraft:deep_frozen_ocean': [64,64,144],
'minecraft:deep_lukewarm_ocean': [0,0,64],
'minecraft:deep_ocean': [0,0,48],
'minecraft:deep_warm_ocean': [0,0,80],
'minecraft:desert': [250,148,24],
'minecraft:desert_hills': [210,95,18],
'minecraft:desert_lakes': [255,188,64],
'minecraft:end_barrens': [128,128,255],
'minecraft:end_highlands': [128,128,255],
'minecraft:end_midlands': [128,128,255],
'minecraft:eroded_badlands': [255,109,61],
'minecraft:flower_forest': [45,142,73],
'minecraft:forest': [5,102,33],
'minecraft:frozen_ocean': [112,112,214],
'minecraft:frozen_river': [160,160,255],
'minecraft:giant_spruce_taiga': [129,142,121],
'minecraft:giant_spruce_taiga_hills': [109,119,102],
'minecraft:giant_tree_taiga': [89,102,81],
'minecraft:giant_tree_taiga_hills': [69,79,62],
'minecraft:gravelly_mountains': [136,136,136],
'minecraft:ice_spikes': [180,220,220],
'minecraft:jungle': [83,123,9],
'minecraft:jungle_edge': [98,139,23],
'minecraft:jungle_hills': [44,66,5],
'minecraft:lukewarm_ocean': [0,0,144],
'minecraft:modified_badlands_plateau': [242,180,141],
'minecraft:modified_gravelly_mountains': [120,152,120],
'minecraft:modified_jungle': [123,163,49],
'minecraft:modified_jungle_edge': [138,179,63],
'minecraft:modified_wooded_badlands_plateau': [216,191,141],
'minecraft:mountain_edge': [114,120,154],
'minecraft:mountains': [96,96,96],
'minecraft:mushroom_field_shore': [160,0,255],
'minecraft:mushroom_fields': [255,0,255],
'minecraft:nether_wastes': [191,59,59],
'minecraft:ocean': [0,0,112],
'minecraft:plains': [141,179,96],
'minecraft:river': [0,0,255],
'minecraft:savanna': [189,178,95],
'minecraft:savanna_plateau': [167,157,100],
'minecraft:shattered_savanna': [229,218,135],
'minecraft:shattered_savanna_plateau': [207,197,140],
'minecraft:small_end_islands': [128,128,255],
'minecraft:snowy_beach': [250,240,192],
'minecraft:snowy_mountains': [160,160,160],
'minecraft:snowy_taiga': [49,85,74],
'minecraft:snowy_taiga_hills': [36,63,54],
'minecraft:snowy_taiga_mountains': [89,125,114],
'minecraft:snowy_tundra': [255,255,255],
'minecraft:soul_sand_valley': [94,56,48],
'minecraft:stone_shore': [162,162,132],
'minecraft:sunflower_plains': [181,219,136],
'minecraft:swamp': [7,249,178],
'minecraft:swamp_hills': [47,255,218],
'minecraft:taiga': [11,102,89],
'minecraft:taiga_hills': [22,57,51],
'minecraft:taiga_mountains': [51,142,129],
'minecraft:tall_birch_forest': [88,156,108],
'minecraft:tall_birch_hills': [71,135,90],
'minecraft:the_end': [128,128,255],
'minecraft:the_void': [0,0,0],
'minecraft:warm_ocean': [0,0,172],
'minecraft:warped_forest': [73,144,123],
'minecraft:wooded_badlands_plateau': [176,151,101],
'minecraft:wooded_hills': [34,85,28],
'minecraft:wooded_mountains': [80,112,80],
'minecraft:snowy_slopes': [140, 195, 222],
'minecraft:lofty_peaks': [196, 168, 193],
'minecraft:snowcapped_peaks': [200, 198, 200],
'minecraft:stony_peaks': [82, 92, 103],
'minecraft:grove': [150, 150, 189],
'minecraft:meadow': [169, 197, 80],
'minecraft:lush_caves': [112, 255, 79],
'minecraft:dripstone_caves': [140, 124, 0],
}
const NetherPreset = {type:'minecraft:multi_noise',seed:0,altitude_noise:{firstOctave:-7,amplitudes:[1,1]},temperature_noise:{firstOctave:-7,amplitudes:[1,1]},humidity_noise:{firstOctave:-7,amplitudes:[1,1]},weirdness_noise:{firstOctave:-7,amplitudes:[1,1]},biomes:[{biome:'minecraft:nether_wastes',parameters:{altitude:0,temperature:0,humidity:0,weirdness:0,offset:0}},{biome:'minecraft:soul_sand_valley',parameters:{altitude:0,temperature:0,humidity:-0.5,weirdness:0,offset:0}},{biome:'minecraft:crimson_forest',parameters:{altitude:0,temperature:0.4,humidity:0,weirdness:0,offset:0}},{biome:'minecraft:warped_forest',parameters:{altitude:0,temperature:0,humidity:0.5,weirdness:0,offset:0.375}},{biome:'minecraft:basalt_deltas',parameters:{altitude:0,temperature:-0.5,humidity:0,weirdness:0,offset:0.175}}]}
const NetherPreset18 = {type:'minecraft:multi_noise',biomes:[{biome:'minecraft:nether_wastes',parameters:{temperature:0,humidity:0,continentalness:0,erosion:0,depth:0,weirdness:0,offset:0}},{biome:'minecraft:soul_sand_valley',parameters:{temperature:0,humidity:-0.5,continentalness:0,erosion:0,depth:0,weirdness:0,offset:0}},{biome:'minecraft:crimson_forest',parameters:{temperature:0.4,humidity:0,continentalness:0,erosion:0,depth:0,weirdness:0,offset:0}},{biome:'minecraft:warped_forest',parameters:{temperature:0,humidity:0.5,continentalness:0,erosion:0,depth:0,weirdness:0,offset:0.375}},{biome:'minecraft:basalt_deltas',parameters:{temperature:-0.5,humidity:0,continentalness:0,erosion:0,depth:0,weirdness:0,offset:0.175}}]}
async function OverworldPreset18() {
const overworld = await fetchPreset('1.18', 'dimension', 'overworld')
return overworld.generator.biome_source
}