IT FUCKING WORKS

gradle.properties

@@ -9,7 +9,7 @@ yarn_mappings=1.20.1+build.9
 loader_version=0.16.10
 
 # Mod Properties
-mod_version=0.0.3
+mod_version=1.0.0
 maven_group=com.smithy
 archives_base_name=celestium
 

src/main/java/com/smithy/Celestium.java

@@ -4,16 +4,23 @@ import net.fabricmc.api.ModInitializer;
 import net.fabricmc.fabric.api.resource.ResourceManagerHelper;
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.util.Identifier;
+import net.minecraft.resource.ResourcePackProfile;
+import net.minecraft.resource.ResourcePackSource;
+import net.minecraft.resource.ResourceType;
 import net.minecraft.text.Text;
+
+import java.nio.file.Path;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import net.fabricmc.fabric.api.resource.ResourcePackActivationType;
+import net.minecraft.resource.DirectoryResourcePack;
 
 public class Celestium implements ModInitializer {
 	// This logger is used to write text to the console and the log file.
 	// It is considered best practice to use your mod id as the logger's name.
 	// That way, it's clear which mod wrote info, warnings, and errors.
-    public static final Logger LOGGER = LoggerFactory.getLogger("celestium");
+	public static final Logger LOGGER = LoggerFactory.getLogger("celestium");
 
 	@Override
 	public void onInitialize() {
@@ -28,6 +35,21 @@ public class Celestium implements ModInitializer {
             ResourcePackActivationType.ALWAYS_ENABLED
         );
 
+		addPack("celestium");
+
+		
 		LOGGER.info("beer!!!!!");
 	}
+	private static void addPack(String packName) {
+		Path resourcePath = FabricLoader.getInstance().getModContainer("celestium").get().findPath("resourcepacks/"+packName).get();
+		CelestiumResourcePackProvider.PACKS.add(ResourcePackProfile.create(
+			"celestium/" + packName.toLowerCase(),
+			Text.translatable("pack_name.tectonic."+packName),
+			false,
+			string -> new DirectoryResourcePack(resourcePath.getFileName().toString(), resourcePath, false),
+			ResourceType.SERVER_DATA,
+			ResourcePackProfile.InsertionPosition.TOP,
+			ResourcePackSource.BUILTIN
+		));
+	}
 }

src/main/java/com/smithy/CelestiumResourcePackProvider.java

@@ -0,0 +1,17 @@
+package com.smithy;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+import net.minecraft.resource.ResourcePackProfile;
+import net.minecraft.resource.ResourcePackProvider;
+
+public class CelestiumResourcePackProvider implements ResourcePackProvider{
+    public static final List<ResourcePackProfile> PACKS = new ArrayList<>();
+
+    @Override
+    public void register(Consumer<ResourcePackProfile> consumer) {
+        PACKS.forEach(consumer);
+    }
+}

src/main/java/com/smithy/mixin/BuiltInPackProviderAccessor.java

@@ -0,0 +1,13 @@
+package com.smithy.mixin;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import net.minecraft.resource.ResourceType;
+import net.minecraft.resource.VanillaResourcePackProvider;
+
+@Mixin(VanillaResourcePackProvider.class)
+public interface BuiltInPackProviderAccessor {
+    @Accessor("type")
+    ResourceType getResourceType();
+}

src/main/java/com/smithy/mixin/ResourcePackManagerMixin.java

@@ -0,0 +1,50 @@
+package com.smithy.mixin;
+
+import java.util.LinkedHashMap;
+import java.util.LinkedHashSet;
+import java.util.Map;
+import java.util.Set;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Mutable;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import com.smithy.CelestiumResourcePackProvider;
+
+import net.minecraft.resource.ResourcePackManager;
+import net.minecraft.resource.ResourcePackProfile;
+import net.minecraft.resource.ResourcePackProvider;
+import net.minecraft.resource.ResourceType;
+import net.minecraft.resource.VanillaResourcePackProvider;
+
+@Mixin(value = ResourcePackManager.class, priority = 2000)
+public class ResourcePackManagerMixin {
+
+    @Shadow
+    @Final
+    @Mutable
+    private Set<ResourcePackProvider> providers;
+
+    // fabric has a severe lack of builtin pack ordering, we load celestium packs from a separate provider
+    @Inject(method = "<init>", at = @At("RETURN"))
+    private void celestium$AddCelestiumSource(ResourcePackProvider[] packProviders, CallbackInfo ci) {
+        providers = new LinkedHashSet<>(providers);
+        for (ResourcePackProvider provider : providers) {
+            if (provider instanceof VanillaResourcePackProvider builtInProvider && ((BuiltInPackProviderAccessor)builtInProvider).getResourceType() == ResourceType.SERVER_DATA) {
+                providers.add(new CelestiumResourcePackProvider());
+                break;
+            }
+        }
+    }
+
+    // swap out TreeMap for LinkedHashMap to prevent ordering issues
+    @ModifyVariable(method = "providePackProfiles", at = @At("STORE"), ordinal = 0)
+    private Map<String, ResourcePackProfile> celestium$LinkedAvailableMap(Map<String, ResourcePackProfile> value) {
+        return new LinkedHashMap<>();
+    }
+}

src/main/resources/celestium.mixins.json

@@ -3,7 +3,9 @@
 	"package": "com.smithy.mixin",
 	"compatibilityLevel": "JAVA_17",
 	"mixins": [
-		"CelestiumMixin"
+		"CelestiumMixin",
+		"BuiltInPackProviderAccessor",
+		"ResourcePackManagerMixin"
 	],
 	"injectors": {
 		"defaultRequire": 1

src/main/resources/resourcepacks/celestium/pack.mcmeta

@@ -0,0 +1,6 @@
+{
+	"pack": {
+		"pack_format": 15,
+		"description": ""
+	}
+}