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move generation inner loop

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a dinosaur 2024-08-30 18:44:55 +10:00
parent cc936248e5
commit c7f7c8caec
1 changed files with 27 additions and 19 deletions
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46
Sources/Voxelotl/World.swift
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@ -2,6 +2,8 @@ import Foundation
public class World {
private var _chunks: Dictionary<SIMD3<Int>, Chunk>
private var noise: ImprovedPerlin<Float>!
private var noise2: SimplexNoise<Float>!
public init() {
self._chunks = [:]
@ -18,35 +20,41 @@ public class World {
}
func generate(width: Int, height: Int, depth: Int, random: inout any RandomProvider) {
let noise = ImprovedPerlin<Float>(random: &random)
let noise2 = SimplexNoise<Float>(random: &random)
self.noise = ImprovedPerlin<Float>(random: &random)
self.noise2 = SimplexNoise<Float>(random: &random)
for x in 0..<width {
for y in 0..<height {
for z in 0..<depth {
let chunkID = SIMD3(x, y, z) &- SIMD3(width, height, depth) / 2
let chunkOrigin = chunkID &<< Chunk.shift
var chunk = Chunk(position: chunkOrigin)
chunk.fill(allBy: { position in
let fpos = SIMD3<Float>(position)
return if fpos.y / Float(Chunk.size)
+ noise.get(fpos * 0.05) * 1.1
+ noise.get(fpos * 0.10) * 0.5
+ noise.get(fpos * 0.30) * 0.23 < 0.6 {
.solid(.init(
hue: Float16(180 + noise2.get(fpos * 0.05) * 180),
saturation: Float16(0.5 + noise2.get(SIMD4(fpos * 0.05, 4)) * 0.5),
value: Float16(0.5 + noise2.get(SIMD4(fpos * 0.05, 9)) * 0.5).lerp(0.5, 1)).linear)
} else {
.air
}
})
self._chunks[chunkID] = chunk
self.generate(chunkID: chunkID)
}
}
}
}
func generate(chunkID: SIMD3<Int>) {
let chunkOrigin = chunkID &<< Chunk.shift
var chunk = Chunk(position: chunkOrigin)
chunk.fill(allBy: { position in
let fpos = SIMD3<Float>(position)
let threshold: Float = 0.6
let value = fpos.y / Float(Chunk.size)
+ 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: Float16(180 + self.noise2.get(fpos * 0.05) * 180),
saturation: Float16(0.5 + self.noise2.get(SIMD4(fpos * 0.05, 4)) * 0.5),
value: Float16(0.5 + self.noise2.get(SIMD4(fpos * 0.05, 9)) * 0.5).lerp(0.5, 1)).linear)
} else {
.air
}
})
self._chunks[chunkID] = chunk
}
var instances: [Instance] {
self._chunks.values.flatMap { chunk in
chunk.compactMap { block, position in