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technicolour icecream hellscape terrain

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a dinosaur
2024-09-05 22:32:30 +10:00
parent 301aa28c4d
commit fed6a26882
6 changed files with 97 additions and 42 deletions
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42
Sources/Voxelotl/Generator/StandardWorldGenerator.swift
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@ -1,5 +1,7 @@
struct StandardWorldGenerator: WorldGenerator {
var noise: ImprovedPerlin<Float>!, noise2: SimplexNoise<Float>!
private var heightNoise: LayeredNoiseAlt<SimplexNoise<Float>>!
private var terrainNoise: LayeredNoise<SimplexNoise<Float>>!
private var colorNoise: LayeredNoise<ImprovedPerlin<Float>>!
public mutating func reset(seed: UInt64) {
var random: any RandomProvider
@ -10,29 +12,33 @@ struct StandardWorldGenerator: WorldGenerator {
random = PCG32Random(seed: initialState)
#endif
self.noise = ImprovedPerlin<Float>(random: &random)
self.noise2 = SimplexNoise<Float>(random: &random)
self.heightNoise = .init(random: &random, octaves: 200, frequency: 0.0002, amplitude: 2)
self.terrainNoise = .init(random: &random, octaves: 10, frequency: 0.01, amplitude: 0.337)
self.colorNoise = .init(random: &random, octaves: 150, frequency: 0.00366, amplitude: 2)
}
public func makeChunk(id chunkID: SIMD3<Int>) -> Chunk {
let chunkOrigin = chunkID &<< Chunk.shift
var chunk = Chunk(position: chunkOrigin)
chunk.fill(allBy: { position in
let fpos = SIMD3<Float>(chunkOrigin &+ position)
let threshold: Float = 0.6
let value = fpos.y / 16.0
+ self.noise.get(fpos * 0.05) * 1.1
+ self.noise.get(fpos * 0.10) * 0.5
+ self.noise.get(fpos * 0.30) * 0.23
return if value < threshold {
.solid(.init(
hue: Float(180 + self.noise2.get(fpos * 0.05) * 180),
saturation: Float(0.5 + self.noise2.get(SIMD4(fpos * 0.05, 4)) * 0.5),
value: Float(0.5 + self.noise2.get(SIMD4(fpos * 0.05, 9)) * 0.5).lerp(0.5, 1)).linear)
} else {
.air
for z in 0..<Chunk.size {
for x in 0..<Chunk.size {
let height = self.heightNoise.get(SIMD2<Float>(chunkOrigin.xz &+ SIMD2<Int>(x, z)))
for y in 0..<Chunk.size {
let ipos = SIMD3(x, y, z)
let fpos = SIMD3<Float>(chunkOrigin &+ ipos)
let height = fpos.y / 64.0 + height
let value = height + self.terrainNoise.get(fpos)
let block: BlockType = if value < 0 {
.solid(.init(
hue: Float(180 + self.colorNoise.get(fpos) * 180),
saturation: 0.7, value: 0.9).linear)
} else {
.air
}
chunk.setBlock(internal: ipos, type: block)
}
}
})
}
return chunk
}
}

2
Sources/Voxelotl/Generator/WorldGenerator.swift
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@ -1,4 +1,4 @@
protocol WorldGenerator {
public protocol WorldGenerator {
mutating func reset(seed: UInt64)
func makeChunk(id: SIMD3<Int>) -> Chunk
}