feat: Allow loading armors from the 1.21.0 format

src/texturePacks/java/moe/nea/firmament/features/texturepack/CustomGlobalArmorOverrides.kt

@@ -145,6 +145,7 @@ object CustomGlobalArmorOverrides {
 						null
 					}
 				}
+				bakedOverrides.clear()
 				val associatedMap = overrides.flatMap { obj -> obj.itemIds.map { it to obj } }
 					.toMap()
 				associatedMap.forEach { it.value.bake(manager) }
@@ -152,7 +153,6 @@ object CustomGlobalArmorOverrides {
 			}
 
 			override fun apply(prepared: Map<String, ArmorOverride>, manager: ResourceManager, profiler: Profiler) {
-				bakedOverrides.clear()
 				overrides = prepared
 			}
 		})
@@ -160,11 +160,13 @@ object CustomGlobalArmorOverrides {
 
 	@JvmStatic
 	fun overrideArmor(itemStack: ItemStack, slot: EquipmentSlot): Optional<EquippableComponent> {
+		if (!CustomSkyBlockTextures.TConfig.enableArmorOverrides) return Optional.empty()
 		return overrideCache.invoke(itemStack, slot)
 	}
 
 	@JvmStatic
 	fun overrideArmorLayer(id: Identifier): EquipmentModel? {
+		if (!CustomSkyBlockTextures.TConfig.enableArmorOverrides) return null
 		return bakedOverrides[id]
 	}
 

src/texturePacks/java/moe/nea/firmament/features/texturepack/CustomSkyBlockTextures.kt

@@ -3,7 +3,6 @@ package moe.nea.firmament.features.texturepack
 import com.mojang.authlib.minecraft.MinecraftProfileTexture
 import com.mojang.authlib.properties.Property
 import java.util.Optional
-import org.jetbrains.annotations.Nullable
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable
 import kotlin.jvm.optionals.getOrNull
 import net.minecraft.block.SkullBlock
@@ -34,6 +33,7 @@ object CustomSkyBlockTextures : FirmamentFeature {
 		val enableModelOverrides by toggle("model-overrides") { true }
 		val enableArmorOverrides by toggle("armor-overrides") { true }
 		val enableBlockOverrides by toggle("block-overrides") { true }
+		val enableLegacyMinecraftCompat by toggle("legacy-minecraft-path-support") { true }
 		val enableLegacyCIT by toggle("legacy-cit") { true }
 		val allowRecoloringUiText by toggle("recolor-text") { true }
 	}

src/texturePacks/java/moe/nea/firmament/mixins/custommodels/PatchLegacyTexturePathsIntoArmorLayers.java

@@ -0,0 +1,38 @@
+package moe.nea.firmament.mixins.custommodels;
+
+
+import moe.nea.firmament.features.texturepack.CustomSkyBlockTextures;
+import moe.nea.firmament.util.MC;
+import net.minecraft.client.render.entity.equipment.EquipmentModel;
+import net.minecraft.util.Identifier;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+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.callback.CallbackInfoReturnable;
+
+@Mixin(EquipmentModel.Layer.class)
+public class PatchLegacyTexturePathsIntoArmorLayers {
+	@Shadow
+	@Final
+	private Identifier textureId;
+
+	@Inject(method = "getFullTextureId", at = @At("HEAD"), cancellable = true)
+	private void replaceWith1201TextureIfExists(EquipmentModel.LayerType layerType, CallbackInfoReturnable<Identifier> cir) {
+		if (!CustomSkyBlockTextures.TConfig.INSTANCE.getEnableLegacyMinecraftCompat())
+			return;
+		var resourceManager = MC.INSTANCE.getResourceManager();
+		// legacy format: "assets/{identifier.namespace}/textures/models/armor/{identifier.path}_layer_{isLegs ? 2 : 1}{suffix}.png"
+		// suffix is sadly not available to us here. this means leather armor will look a bit shite
+		var legacyIdentifier = this.textureId.withPath((textureName) -> {
+			String var10000 = layerType.asString();
+			return "textures/models/armor/" + textureName + "_layer_" +
+				       (layerType == EquipmentModel.LayerType.HUMANOID_LEGGINGS ? 2 : 1)
+				       + ".png";
+		});
+		if (resourceManager.getResource(legacyIdentifier).isPresent()) {
+			cir.setReturnValue(legacyIdentifier);
+		}
+	}
+}

src/texturePacks/java/moe/nea/firmament/mixins/custommodels/SupplyFakeModelPatch.java

@@ -4,6 +4,7 @@ import com.google.gson.JsonObject;
 import com.llamalad7.mixinextras.injector.ModifyReturnValue;
 import com.llamalad7.mixinextras.sugar.Local;
 import moe.nea.firmament.Firmament;
+import moe.nea.firmament.features.texturepack.CustomSkyBlockTextures;
 import moe.nea.firmament.features.texturepack.PredicateModel;
 import moe.nea.firmament.util.ErrorUtil;
 import net.minecraft.client.item.ItemAsset;
@@ -17,10 +18,7 @@ import net.minecraft.util.Identifier;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 
-import java.io.IOException;
 import java.io.InputStreamReader;
-import java.util.ArrayList;
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -46,6 +44,7 @@ public class SupplyFakeModelPatch {
 	}
 
 	private static ItemAssetsLoader.Result supplyExtraModels(ResourceManager resourceManager, ItemAssetsLoader.Result oldModels) {
+		if (!CustomSkyBlockTextures.TConfig.INSTANCE.getEnableLegacyMinecraftCompat()) return oldModels;
 		Map<Identifier, ItemAsset> newModels = new HashMap<>(oldModels.contents());
 		var resources = resourceManager.findResources(
 			"models/item",

translations/en_us.json

@@ -81,6 +81,8 @@
 	"firmament.config.custom-skyblock-textures.enabled.description": "Allow replacing items for texture packs. Turning this off does not disable custom predicates",
 	"firmament.config.custom-skyblock-textures.legacy-cit": "Enable legacy CIT Resewn compat",
 	"firmament.config.custom-skyblock-textures.legacy-cit.description": "Allow CIT resewn texture packs written for 1.20.4 to be loaded on newer versions.",
+	"firmament.config.custom-skyblock-textures.legacy-minecraft-path-support": "Enable Legacy Paths",
+	"firmament.config.custom-skyblock-textures.legacy-minecraft-path-support.description": "Allow texture packs to load textures from some legacy paths. I.e.: Allows loading 1.21.0 armor textures on 1.21.4.",
 	"firmament.config.custom-skyblock-textures.model-overrides": "Enable model overrides/predicates",
 	"firmament.config.custom-skyblock-textures.model-overrides.description": "Enable Firmament's model predicates. This will apply to vanilla models as well, if that vanilla model has Firmament predicates.",
 	"firmament.config.custom-skyblock-textures.recolor-text": "Allow packs to recolor text",