mirror of
https://github.com/GayPizzaSpecifications/voxelotl-engine.git
synced 2025-08-03 13:11:33 +00:00
41 lines
1.4 KiB
Swift
41 lines
1.4 KiB
Swift
struct WorldGenerator {
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var noise: ImprovedPerlin<Float>!, noise2: SimplexNoise<Float>!
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public mutating func reset(seed: UInt64) {
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var random: any RandomProvider
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#if true
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random = Xoroshiro128PlusPlus(seed: seed)
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#else
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//TODO: Fill seed with a hash
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random = PCG32Random(state: (
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UInt64(Arc4Random.instance.next()) | UInt64(Arc4Random.instance.next()) << 32,
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UInt64(Arc4Random.instance.next()) | UInt64(Arc4Random.instance.next()) << 32))
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#endif
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self.noise = ImprovedPerlin<Float>(random: &random)
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self.noise2 = SimplexNoise<Float>(random: &random)
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}
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public func makeChunk(id chunkID: SIMD3<Int>) -> Chunk {
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let chunkOrigin = chunkID &<< Chunk.shift
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var chunk = Chunk(position: chunkOrigin)
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chunk.fill(allBy: { position in
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let fpos = SIMD3<Float>(position)
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let threshold: Float = 0.6
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let value = fpos.y / Float(Chunk.size)
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+ self.noise.get(fpos * 0.05) * 1.1
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+ self.noise.get(fpos * 0.10) * 0.5
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+ self.noise.get(fpos * 0.30) * 0.23
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return if value < threshold {
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.solid(.init(
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hue: Float16(180 + self.noise2.get(fpos * 0.05) * 180),
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saturation: Float16(0.5 + self.noise2.get(SIMD4(fpos * 0.05, 4)) * 0.5),
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value: Float16(0.5 + self.noise2.get(SIMD4(fpos * 0.05, 9)) * 0.5).lerp(0.5, 1)).linear)
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} else {
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.air
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}
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})
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return chunk
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}
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}
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