Daniar Mannanov
482654bf7a
LoadResolvedTemplate parses the extracted .nbt files with every palette entry resolved to concrete state IDs through an injected resolver, and TransformBlockPos reproduces StructureTemplate.transform's mirror-then- rotate order around the pivot, including all three quarter-turn cases read off the bytecode. MthGetSeed gives processors their per-block positional Legacy stream. Verified against the real ruined_portal templates: every block lands inside the declared size for all eight mirror/rotation combinations.
66 lines
2.1 KiB
Go
66 lines
2.1 KiB
Go
package worldgen
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import (
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"os"
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"path/filepath"
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"testing"
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)
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// TestLoadRuinedPortalTemplate loads a real vanilla template from the
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// extracted datapack data and checks that every block resolves and that the
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// transform keeps points inside the rotated bounding box.
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func TestLoadRuinedPortalTemplate(t *testing.T) {
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path := filepath.Join("data", "structure_template", "ruined_portal", "portal_1.nbt")
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if _, err := os.Stat(path); err != nil {
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t.Skipf("template data not installed: %v", err)
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}
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blocks, size, err := LoadResolvedTemplate(path, func(name string, props map[string]string) (uint16, bool) {
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// The resolver is not under test here; accept every palette entry.
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return 1, true
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})
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if err != nil {
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t.Fatal(err)
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}
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if len(blocks) == 0 {
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t.Fatal("template parsed to zero blocks")
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}
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if size[0] <= 0 || size[1] <= 0 || size[2] <= 0 {
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t.Fatalf("implausible size %v", size)
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}
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for _, b := range blocks {
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if b.Pos[0] < 0 || b.Pos[0] >= size[0] || b.Pos[1] < 0 || b.Pos[1] >= size[1] || b.Pos[2] < 0 || b.Pos[2] >= size[2] {
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t.Fatalf("block %v outside size %v", b.Pos, size)
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}
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}
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pivot := [3]int{size[0] / 2, 0, size[2] / 2}
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for rotation := 0; rotation < 4; rotation++ {
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for _, mirror := range []string{"none", "front_back"} {
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for _, b := range blocks {
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out := TransformBlockPos(b.Pos, mirror, rotation, pivot)
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if out[1] != b.Pos[1] {
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t.Fatalf("transform moved Y: %v -> %v", b.Pos, out)
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}
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}
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}
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}
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// A clockwise quarter turn around the pivot must map the corner (0,z) to
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// (px - pz + z, y, px + pz) per the bytecode formula.
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got := TransformBlockPos([3]int{0, 5, 3}, "none", 1, pivot)
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wantX := pivot[0] - pivot[2] + 3
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wantZ := pivot[0] + pivot[2] - 0
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if got[0] != wantX || got[2] != wantZ {
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t.Fatalf("clockwise_90 of (0,5,3) = %v, want (%d,5,%d)", got, wantX, wantZ)
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}
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}
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func TestMthGetSeedMatchesKnownShape(t *testing.T) {
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// Sanity only: the seed is signed arithmetic; assert determinism plus the
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// documented shift structure.
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a := MthGetSeed(10, -40, 7)
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b := MthGetSeed(10, -40, 7)
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if a != b {
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t.Fatalf("positional seed unstable: %d vs %d", a, b)
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}
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}
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