a7bb9496ae
Vanilla-faithful overworld generator (final_density + multi-noise biomes), full connection lifecycle (status/login/configuration/play), chunk streaming, creative block editing, and the protocol/nbt/registry infrastructure.
45 lines
1.5 KiB
Go
45 lines
1.5 KiB
Go
package worldgen
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import (
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"math"
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"testing"
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)
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var noisePts = [][3]float64{{0.5, 0.5, 0.5}, {1.5, 2.5, 3.5}, {100.1, 64.0, -200.7}, {-12.3, 5.0, 7.7}}
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func TestPerlinNoiseVectors(t *testing.T) {
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p := NewPerlinNoise(NewXoroshiro(42), -3, []float64{1, 1, 1})
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// Octave offsets validate the positional-factory MD5 seeding chain.
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wantOff := [3][3]float64{
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{77.66507715247522, 242.19573546755112, 173.13896594232995},
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{217.18954032212207, 38.031116641324985, 29.079876730588552},
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{245.20475284681797, 184.39003372698303, 174.76798991121467},
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}
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for i, w := range wantOff {
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o := p.octaves[len(p.octaves)-1-i]
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if math.Abs(o.Xo-w[0]) > 1e-9 || math.Abs(o.Yo-w[1]) > 1e-9 || math.Abs(o.Zo-w[2]) > 1e-9 {
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t.Fatalf("octave[%d] offsets = %v,%v,%v want %v", i, o.Xo, o.Yo, o.Zo, w)
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}
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}
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want := []float64{0.14203479195685254, -0.2004829169283356, 0.10959099511010406, 0.02936359094335893}
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for i, pt := range noisePts {
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if got := p.GetValue(pt[0], pt[1], pt[2]); math.Abs(got-want[i]) > 1e-12 {
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t.Fatalf("PerlinNoise%v = %v, want %v", pt, got, want[i])
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}
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}
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}
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func TestNormalNoiseVectors(t *testing.T) {
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n := NewNormalNoise(NewXoroshiro(42), -3, []float64{1, 1, 1})
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if math.Abs(n.MaxValue()-5.0) > 1e-12 {
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t.Fatalf("maxValue = %v, want 5.0", n.MaxValue())
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}
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want := []float64{0.08875533507209354, -0.1338868205633287, -0.18990226335882565, 0.008404386832678992}
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for i, pt := range noisePts {
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if got := n.GetValue(pt[0], pt[1], pt[2]); math.Abs(got-want[i]) > 1e-12 {
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t.Fatalf("NormalNoise%v = %v, want %v", pt, got, want[i])
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}
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}
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}
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