76 lines
2 KiB
Go
76 lines
2 KiB
Go
package world
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import (
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"testing"
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"regionio/internal/worldgen"
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)
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func TestGeodePlacementIsDeterministicAndLayered(t *testing.T) {
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set, err := worldgen.LoadFeatureSet()
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if err != nil {
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t.Fatal(err)
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}
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config, err := set.Geode("minecraft:amethyst_geode")
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if err != nil {
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t.Fatal(err)
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}
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makeRegion := func() *decorationRegion {
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chunks := make([]*Chunk, 0, 25)
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for cx := int32(-2); cx <= 2; cx++ {
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for cz := int32(-2); cz <= 2; cz++ {
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chunk := NewChunk(cx, cz, BiomePlains)
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for y := MinY; y < MinY+WorldHeight; y++ {
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for x := 0; x < 16; x++ {
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for z := 0; z < 16; z++ {
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chunk.setBlockRaw(x, y, z, StateStone)
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}
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}
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}
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chunks = append(chunks, chunk)
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}
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}
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region, err := newDecorationRegion(chunks)
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if err != nil {
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t.Fatal(err)
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}
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if err := region.setSource(0, 0); err != nil {
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t.Fatal(err)
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}
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return region
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}
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origin := worldgen.FeaturePosition{X: 8, Y: 0, Z: 8}
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a, b := makeRegion(), makeRegion()
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if !a.placeGeode(worldgen.NewWorldgenRandom(42), 12345, origin, config, set) {
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t.Fatal("geode placement changed no blocks")
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}
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if !b.placeGeode(worldgen.NewWorldgenRandom(42), 12345, origin, config, set) {
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t.Fatal("second geode placement changed no blocks")
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}
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counts := map[uint16]int{}
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for cx := int32(-1); cx <= 1; cx++ {
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for cz := int32(-1); cz <= 1; cz++ {
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left := a.chunks[[2]int32{cx, cz}]
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right := b.chunks[[2]int32{cx, cz}]
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for y := MinY; y < MinY+WorldHeight; y++ {
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for x := 0; x < 16; x++ {
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for z := 0; z < 16; z++ {
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if left.GetBlock(x, y, z) != right.GetBlock(x, y, z) {
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t.Fatalf("geodes differ at chunk (%d,%d) block (%d,%d,%d)", cx, cz, x, y, z)
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}
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state := left.GetBlock(x, y, z)
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if state != StateStone {
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counts[state]++
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}
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}
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}
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}
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}
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}
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for _, name := range []string{"minecraft:smooth_basalt", "minecraft:calcite", "minecraft:amethyst_block"} {
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state, ok := nameToStateID(name, nil)
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if !ok || counts[state] == 0 {
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t.Fatalf("geode did not place %s: counts=%v", name, counts)
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}
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}
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}
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