Copper Age Backport Patch

An unofficial patch and compatibility addon for Copper Age Backport on Minecraft 1.21.1 (NeoForge and Fabric).

Important Loader Note

• Fabric: Copper Age Backport runs completely fine on Fabric on its own and does not crash. On Fabric, this mod serves as a gameplay, balance, and mod compatibility addon.
• NeoForge: On NeoForge 21.1.237 and newer, Copper Age Backport suffers from a startup registry collision crash. This patch resolves that crash on NeoForge.

Features

Lightning Rod Parity (Weathering, Channeling & Redstone)

• Full multi-loader parity across both Fabric and NeoForge for all 7 Copper Age Backport lightning rod variants (Exposed, Weathered, Oxidized, Waxed, Waxed Exposed, Waxed Weathered, Waxed Oxidized).
• Restores natural thunderstorm lightning redirection within 128 blocks by dynamically registering all 168 blockstates of CAB lightning rods into PoiTypes.TYPE_BY_STATE.
• Enables Channeling Tridents to reliably summon lightning strikes on all 8 rod variants during thunderstorms via robust minecraft:any_of block state matching (data/minecraft/enchantment/channeling.json).
• Emits an 8-tick redstone pulse and electric spark particles when struck by lightning.
• Struck unwaxed weathered lightning rods de-oxidize by one stage while waxed variants remain protected. Struck rods redirect de-oxidation to attached copper blocks with realistic random-walk copper cleaning.
• Integrates with WeatheringCopper and HoneycombItem BiMaps for full axe scraping and honeycomb waxing support.

Farmer's Delight Integration (Copper Knife)

• Seamlessly integrates a Copper Knife under the farmersdelight namespace (farmersdelight:copper_knife) so it appears natively in tooltips, recipe viewers, and tags.
• Balanced durability of 190 (CAB copper tool tier, naturally positioned between Flint [131] and Iron [250]).
• Authentic knife balance: 2.5 Attack Damage and 2.0 Attack Speed (+0.5f damage bonus, -2.0f attack speed modifier), preserving straw/grass harvesting and cutting board slicing.
• Shaped crafting recipe with 1 copper ingot placed vertically over 1 stick.
• Exclusively added to the Farmer's Delight creative tab directly after the Flint Knife and before the Iron Knife.

Shield Expansion Integration (Copper Shield)

• Seamlessly integrates a Copper Shield under the shieldexp namespace (shieldexp:copper_shield) so it appears natively as a Shield Expansion shield.
• Balanced durability of 120 (positioned between Wooden Shield [55] and Iron Shield [165]).
• Custom 3D block model geometry based on Shield Expansion standards, ensuring full 3D rendering in GUI, hands, and blocking across both NeoForge and Fabric.
• Full Shield Expansion stats: parry mechanics, 25 cooldown ticks, 0.70 speed factor, 5 parry ticks, and 2 stamina.
• Shaped crafting recipe with 1 stick surrounded by 8 copper ingots.
• Placed in the Creative Combat tab directly after the Wooden Shield and before the Iron Shield.

Armor Trims (Vanilla Smithing Table)

• Copper armor pieces (Helmet, Chestplate, Leggings, Boots) can be trimmed at a Smithing Table with vanilla armor trim templates without needing any other mod.
• Includes a custom high-contrast copper_darker palette for copper trim on copper armor to maintain visual clarity.

Pale Oak Shelf Crafting Recipe

• Adds the missing shaped crafting recipe for the Pale Oak Shelf (minecraft:pale_oak_shelf) using Stripped Pale Oak Logs (minecraft:stripped_pale_oak_log), restoring recipe parity with all other wooden shelf types in Copper Age Backport.

Tool Trims Mod Compatibility (Optional Integration)

• Adds full compatibility with the Tool Trims mod.
• Note: Tool trimming is NOT a standalone feature; it requires the Tool Trims mod to be installed. When installed, all 5 copper tools (Sword, Axe, Pickaxe, Shovel, Hoe) can be trimmed across 4 patterns and 10 materials.

Armor Durability Restoration & Anvil Repair

• Restores balanced durability values (Helmet: 121, Chestplate: 176, Leggings: 165, Boots: 143) based on tier multiplier 11. Upstream omitted durability, making armor unbreakable.
• Copper armor and copper tools can now be repaired on an Anvil using Copper Ingots.

Creative Inventory Organization

• Combat Tab: Copper Axe appears in the Creative Combat tab directly after Stone Axe, matching vanilla weapon tier progression. Copper Shield appears directly after Wooden Shield.
• Spawn Eggs Tab: Positions the Copper Golem Spawn Egg directly after the Cod Spawn Egg and before the Cow Spawn Egg, matching official 1.21.9 release order.

Modern Copper Golem Spawn Egg & Visual Fixes

• Automatically uses the modern detailed spawn egg texture when Vanilla Backport is installed, or keeps the classic dotted egg when absent.
• Choose between AUTO, MODERN, or CLASSIC in config/copper_age_patch.json.
• Fixed tint filter distortions on Fabric so the spawn egg renders with accurate colors on all loaders.

In-Game Information (JEI / EMI / REI)

• Built-in guide pages explaining Copper Golem oxidation stages, waxing, antenna items, lightning rod de-oxidation, shelf storage, and anvil repairs.

Jade HUD Tooltips

• Displays held items, antenna flowers (e.g. poppy gifted by an Iron Golem), oxidation stages, and waxed status on Copper Golems, plus inventory previews for shelves via Jade.

Create Mod Interoperability

• Unifies copper nuggets under standard common tags (#c:nuggets/copper, #c:copper_nuggets) with bidirectional crafting and Crushing Wheel recycling with Create.

Better Combat Integration

• Native attack animations, weapon attributes, and sweep hitboxes with Better Combat.

Vanilla Copper Translation Restoration & Localization Fixes

• Restores authentic vanilla translations across 30 languages for 42 copper blocks and subtitles that were previously overwritten in English by Copper Age Backport.
• Corrects Turkish typos and unidiomatic terminology in Copper Age Backport.

NeoForge Registry Crash Fix

• Fixes the duplicate ResourceKey / armor material registration crash on NeoForge 21.1.237+.

25+ Supported Languages

• Complete, authentic translations across all 25 supported languages for mod items (including Copper Knife and Copper Shield across farmersdelight and shieldexp), blocks, and subtitles.

Requirements & Compatibility

Credits and License

• Original Copper Age Backport by Smallinger (CC0).
• Patch developed by 1unarea under the MIT License.