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Bundle Upgrade (Fabric)

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Bundle Upgrade (Fabric)

By LeThaiToan2k4

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Upgrade your vanilla Bundles sequentially through Copper, Iron, Gold, Emerald, and Diamond tiers for expanded storage capacity while keeping your items intact.

Mod Loaders
Minecraft
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Description

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Bundle Upgrade

Sequential Bundle Storage Upgrades for Minecraft Fabric 1.21.11

Build Passing Release V1.0.0 Minecraft 1.21.11 Fabric 0.19.5 Java 21 Author thaistoanf

Overview

Bundle Upgrade expands the vanilla Minecraft Bundle through 5 sequential upgrade tiers: Copper ➔ Iron ➔ Gold ➔ Emerald ➔ Diamond.

Each upgrade cumulatively increases the maximum storage capacity while preserving 100% of the items and custom names stored inside when crafting the next tier at a Crafting Table.

Sequential Upgrade Tiers & Crafting Recipes

Upgrades are strictly sequential (you must craft a Copper Bundle before upgrading it to an Iron Bundle). Place the previous tier Bundle in the center slot of a 3×3 Crafting Table and surround it with 8 ingots/gems of the next tier:

Tier Item Name Item ID Center Slot (×1) Surrounding (×8) Bonus Max Capacity
0 Vanilla Bundle minecraft:bundle — Vanilla Recipe +0 64
1 Copper Bundle bundleupgrade:copper_bundle Vanilla Bundle minecraft:copper_ingot +10 74
2 Iron Bundle bundleupgrade:iron_bundle Copper Bundle minecraft:iron_ingot +20 94
3 Gold Bundle bundleupgrade:gold_bundle Iron Bundle minecraft:gold_ingot +30 124
4 Emerald Bundle bundleupgrade:emerald_bundle Gold Bundle minecraft:emerald +40 164
5 Diamond Bundle bundleupgrade:diamond_bundle Emerald Bundle minecraft:diamond +50 214

How to Use & Mechanics

  1. Insert Items: Pick up an item with your cursor and Right-Click on the Upgraded Bundle, or pick up the Bundle and Right-Click over items in your inventory.
  2. Extract Items: Right-Click the Bundle in your inventory (or in hand) to extract items. Use the Mouse Scroll Wheel while hovering over the Bundle to select a specific item to pull out.
  3. Safe Upgrading (Item Preservation): Upgrading a Bundle that already contains items will automatically transfer all stored items and custom anvil names into the newly crafted higher-tier Bundle.
  4. Weight Calculation Rules:
    • Stack of 64 (Cobblestone, Logs, Ores, Dirt…): 1 capacity unit per item.
    • Stack of 16 (Ender Pearls, Eggs, Signs, Snowballs…): 4 capacity units per item.
    • Unstackable / Stack of 1 (Swords, Pickaxes, Armor, Potions…): 64 capacity units per item. With expanded capacities (74 up to 214), you can store unstackable tools/weapons alongside stackable items in the same Bundle!
  5. Dynamic Fullness Bar & Tooltip:
    • Both the inventory fullness bar and the tooltip counter dynamically scale to each tier's maximum capacity (e.g., 64 / 74, 150 / 214).

Installation & Requirements

  • Requirements:
    • Minecraft: 1.21.11
    • Fabric Loader: 0.19.5+
    • Dependency: Fabric API
    • Java: Java 21
  • Installation:
    1. Download the latest bundleupgrade-1.0.0.jar and Fabric API.
    2. Drop both .jar files into your .minecraft/mods directory.
    3. Launch Minecraft with the Fabric 1.21.11 profile.

Developed by thaistoanf