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world: replay datapack features across regions

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This commit is contained in:
Daniar Mannanov 2026-08-25 03:59:10 +03:00
parent f1d1d109f4
commit d8b5d0f79b
13 changed files with 1259 additions and 8 deletions
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12
internal/world/placed_features.go
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@ -135,10 +135,14 @@ func placeOreEllipsoid(c *Chunk, random worldgen.RandomSource, originX, originY,
func buildOreSpheres(random worldgen.RandomSource, originX, originY, originZ, size int) []oreSphere {
angle := random.NextFloat() * float32(math.Pi)
extent := float32(size) / 8.0
x0 := float64(originX) + float64(worldgen.MthSin(float64(angle))*extent)
x1 := float64(originX) - float64(worldgen.MthSin(float64(angle))*extent)
z0 := float64(originZ) + float64(worldgen.MthCos(float64(angle))*extent)
z1 := float64(originZ) - float64(worldgen.MthCos(float64(angle))*extent)
// OreFeature.place uses java.lang.Math for the vein axis. The later radius
// wave uses Mth.sin, but using the lookup table here shifts every sphere.
xOffset := math.Sin(float64(angle)) * float64(extent)
zOffset := math.Cos(float64(angle)) * float64(extent)
x0 := float64(originX) + xOffset
x1 := float64(originX) - xOffset
z0 := float64(originZ) + zOffset
z1 := float64(originZ) - zOffset
y0 := float64(originY + int(random.NextIntN(3)) - 2)
y1 := float64(originY + int(random.NextIntN(3)) - 2)