Amphitrite Coffer

This modification introduces a special portable container with aquatic theming and unique properties. This item doesn't replace shulker boxes but offers a more balanced alternative to the numerous backpacks found in other mods. The core concept was creating a system that encourages world exploration and doesn't push players to rush to the End solely for additional inventory slots.

Core Development Principles:

• The item should be obtainable before completing the main game
• Its acquisition should be relatively rare and require certain efforts (especially in early stages)
• Even after obtaining shulker boxes, the container remains useful by complementing their functionality

Amphitrite Coffer Features:

• Cannot be crafted — the item can only be found in ocean monuments, where it appears among treasures with at least one Heart of the Sea
• Requires water contact to function — the container can only be opened when waterlogged or charged
• Relatively small capacity — offers 2 rows of slots instead of 3 (plus one special slot)
• Automatically transforms certain items when placed inside (for example, turns concrete powder into solid concrete blocks)
• When charged can convert common materials into rarer variants (for example, polished deepslate into dark prismarine)
• Can hold shulker boxes inside itself — this is the only allowed nested container combination (this feature can be disabled in settings)

Standard Transformations

Transformation Mechanism Details:

• Transformations can be bypassed by placing items in a shulker box inside the container
• Hopper functionality requires the container to be waterlogged or charged
• To view the complete recipe list, it's recommended to install the approximately Enough Items mod

Charging Process

To charge the container, place a Heart of the Sea in the special slot. The item will be consumed, and the charge persists even after you pick up and reposition the container. A charged container can be opened without water and emits maximum light level (15).

Charged Transformations

Charge Consumption During Transformations

• Enchantments and Water Breathing potion consume 50 charge units
• Crying obsidian and sea lanterns require 2 units each
• All other transformations consume 1 charge unit

Important Note on Enchantments: Enchantments Respiration III (helmet), Depth Strider III (boots), Impaling V (trident), and Luck of the Sea III (fishing rod) can be added to already enchanted items if they are compatible. However, Aqua Affinity can only be applied to unenchanted books, preventing unnecessary charge consumption on incompatible books.

Functionality Expansion

Server owners can add custom transformation rules through datapacks (series of examples available via numbered links below):

1. Bucket to Water Bucket
2. Lava Bucket to Obsidian
3. Cobblestone to Prismarine
4. Water Bottle to Water Breathing Potion
5. Chainmail Helmet Enchantment with Respiration

New transformations continue to maintain the aquatic theme — currently only one-to-one conversions are supported.