Leveled Drops — 1.0.0

Background

This mod is a Forge port of the datapack
"Minecraft but your XP = your multiplier" by bittu5134.
Original datapack: https://www.planetminecraft.com/data-pack/minecraft-but-your-xp-your-multiplier-bittu5134/

The core idea comes from the datapack: your XP level acts as a drop multiplier.
This mod brings it to Forge 1.20.1, adds a configuration screen, and extends it
with an enchantment rework.

Drop multiplier

Every item drop from a broken block or killed mob is multiplied by your XP level.
Level 10 means ten times the drops. Containers count too — breaking a chest or
barrel multiplies the items inside along with the block's own drops. NBT data
(enchantments, etc.) is preserved on every copy.

Setting the multiplier to 0 suppresses all item drops. XP orbs are unaffected.

Press M (rebindable) to open the configuration screen. The slider sets your
multiplier anywhere from 1 to your current level, and the Disable Drops button
sets it to 0. Your choice persists across sessions and clamps automatically if you
lose levels. A ×N indicator sits in a corner of your screen at all times;
the position is configurable from the same screen.

Enchantment changes

Level cap raised to 64. All multi-level enchantments (Sharpness, Protection,
Efficiency, etc.) now go up to 64. Combine books the normal way to climb:
Sharpness V + V = VI, and so on. The /enchant command respects the new cap too.
Single-level enchantments are untouched.

No "Too Expensive!". Anvil cost is based only on enchantment rarities, never
the accumulated repair penalty, so nothing is ever blocked by cost.

Roman numeral display. Levels above X are shown as XI (11) through
LXIV (64) so the number is always clear.

Notes

Install on both client and server in multiplayer. The HUD and keybind are
client-only and won't appear on a dedicated server.