From b96692521251a4765f1624e07e778781a669f4d5 Mon Sep 17 00:00:00 2001
From: adman <adman.else@gmail.com>
Date: Sat, 11 Jul 2026 23:08:03 +0200
Subject: [PATCH] move data stuff

---
 mc/{gen => data}/multi_noise.go |  6 ++----
 mc/data/multi_noise_test.go     | 34 ++++++++++++++++++++++++++++++++
 mc/gen/biome_noise.go           | 12 +++++++----
 mc/gen/multi_noise_test.go      | 35 ++++-----------------------------
 4 files changed, 48 insertions(+), 39 deletions(-)
 rename mc/{gen => data}/multi_noise.go (95%)
 create mode 100644 mc/data/multi_noise_test.go

diff --git a/mc/gen/multi_noise.go b/mc/data/multi_noise.go
similarity index 95%
rename from mc/gen/multi_noise.go
rename to mc/data/multi_noise.go
index 1a4806b..f5406e2 100644
--- a/mc/gen/multi_noise.go
+++ b/mc/data/multi_noise.go
@@ -1,10 +1,8 @@
-package gen
+package data
 
 import (
 	"fmt"
 	"math"
-
-	"github.com/admin-else/strom/mc/data"
 )
 
 // MultiNoisePreset names the two built-in multi-noise parameter lists.
@@ -59,7 +57,7 @@ type rawMultiNoise map[string][]rawEntry
 // "multi_noise_biome_source_parameter_list" key in minecraft-data.
 func LoadMultiNoise(version string) (*MultiNoiseData, error) {
 	var raw rawMultiNoise
-	if err := data.LoadVersionedJson(version, "multi_noise_biome_source_parameter_list", &raw); err != nil {
+	if err := LoadVersionedJson(version, "multi_noise_biome_source_parameter_list", &raw); err != nil {
 		return nil, fmt.Errorf("load multi_noise for %s: %w", version, err)
 	}
 
diff --git a/mc/data/multi_noise_test.go b/mc/data/multi_noise_test.go
new file mode 100644
index 0000000..5264e28
--- /dev/null
+++ b/mc/data/multi_noise_test.go
@@ -0,0 +1,34 @@
+package data
+
+import (
+	"testing"
+)
+
+func TestLoadMultiNoise(t *testing.T) {
+	for _, version := range []string{"1.21.8", "1.21.9", "1.21.11"} {
+		data, err := LoadMultiNoise(version)
+		if err != nil {
+			t.Fatalf("LoadMultiNoise(%q): %v", version, err)
+		}
+		if len(data.Presets[MultiNoiseOverworld]) == 0 {
+			t.Errorf("%s: overworld preset empty", version)
+		}
+		if len(data.Presets[MultiNoiseNether]) == 0 {
+			t.Errorf("%s: nether preset empty", version)
+		}
+	}
+}
+
+func TestMultiNoiseLookup_NetherOrigin(t *testing.T) {
+	data, err := LoadMultiNoise("1.21.11")
+	if err != nil {
+		t.Fatalf("LoadMultiNoise: %v", err)
+	}
+	biome, err := data.Lookup(MultiNoiseNether, 0, 0, 0, 0, 0, 0)
+	if err != nil {
+		t.Fatalf("Lookup: %v", err)
+	}
+	if biome != "minecraft:nether_wastes" {
+		t.Errorf("nether origin = %s, want minecraft:nether_wastes", biome)
+	}
+}
diff --git a/mc/gen/biome_noise.go b/mc/gen/biome_noise.go
index 6f23ec7..753b279 100644
--- a/mc/gen/biome_noise.go
+++ b/mc/gen/biome_noise.go
@@ -1,6 +1,10 @@
 package gen
 
-import "math"
+import (
+	"math"
+
+	"github.com/admin-else/strom/mc/data"
+)
 
 type NoiseParam int
 
@@ -91,8 +95,8 @@ func (b BiomeNoise) Sample(x, y, z int) (t, h, c, e, d, w float64, combinedData
 
 // SampleBiome samples the climate noise at (x, y, z) and resolves it through
 // the supplied multi-noise parameter list. preset should be one of the
-// MultiNoise* constants.
-func (b BiomeNoise) SampleBiome(x, y, z int, data *MultiNoiseData, preset string) (string, error) {
+// data.MultiNoise* constants.
+func (b BiomeNoise) SampleBiome(x, y, z int, mnd *data.MultiNoiseData, preset string) (string, error) {
 	_, _, _, _, _, _, combined, _ := b.Sample(x, y, z)
-	return data.Lookup(preset, combined[0], combined[1], combined[2], combined[3], combined[4], combined[5])
+	return mnd.Lookup(preset, combined[0], combined[1], combined[2], combined[3], combined[4], combined[5])
 }
diff --git a/mc/gen/multi_noise_test.go b/mc/gen/multi_noise_test.go
index f4939bf..923abfd 100644
--- a/mc/gen/multi_noise_test.go
+++ b/mc/gen/multi_noise_test.go
@@ -2,48 +2,21 @@ package gen
 
 import (
 	"testing"
+
+	"github.com/admin-else/strom/mc/data"
 )
 
-func TestLoadMultiNoise(t *testing.T) {
-	for _, version := range []string{"1.21.8", "1.21.9", "1.21.11"} {
-		data, err := LoadMultiNoise(version)
-		if err != nil {
-			t.Fatalf("LoadMultiNoise(%q): %v", version, err)
-		}
-		if len(data.Presets[MultiNoiseOverworld]) == 0 {
-			t.Errorf("%s: overworld preset empty", version)
-		}
-		if len(data.Presets[MultiNoiseNether]) == 0 {
-			t.Errorf("%s: nether preset empty", version)
-		}
-	}
-}
-
-func TestMultiNoiseLookup_NetherOrigin(t *testing.T) {
-	data, err := LoadMultiNoise("1.21.11")
-	if err != nil {
-		t.Fatalf("LoadMultiNoise: %v", err)
-	}
-	biome, err := data.Lookup(MultiNoiseNether, 0, 0, 0, 0, 0, 0)
-	if err != nil {
-		t.Fatalf("Lookup: %v", err)
-	}
-	if biome != "minecraft:nether_wastes" {
-		t.Errorf("nether origin = %s, want minecraft:nether_wastes", biome)
-	}
-}
-
 func TestBiomeNoise_SampleBiome(t *testing.T) {
 	var worldSeed int64 = 70388202460762
 	x := XoroshiroFromSeed(worldSeed)
 	x.Mix()
 	b := BiomeNoiseFromXoroshiro(x, false)
-	data, err := LoadMultiNoise("1.21.11")
+	mnd, err := data.LoadMultiNoise("1.21.11")
 	if err != nil {
 		t.Fatalf("LoadMultiNoise: %v", err)
 	}
 
-	biome, err := b.SampleBiome(-1, -16, 0, data, MultiNoiseOverworld)
+	biome, err := b.SampleBiome(-1, -16, 0, mnd, data.MultiNoiseOverworld)
 	if err != nil {
 		t.Fatalf("SampleBiome: %v", err)
 	}