Element Endow

ElementEndow – Elemental System Library for Minecraft Mods

ElementEndow is a lightweight, data-driven library mod that introduces a flexible elemental attribute and reaction system to Minecraft. It allows other mods to easily add custom elements, define elemental reactions, create combinations, and apply temporary elemental mounts — all via data packs and a clean Java API.

https://github.com/Neferge466/Element-Endow/wiki/en_us

🔧 Key Features:

• Register custom elements via config/element_endow_elements.properties
• Define elemental reactions (e.g., Fire + Water → Steam) with conditions, damage modifiers, status effects, and mounts
• Create persistent combinations that grant buffs when specific elements coexist
• Apply temporary elemental mounts with stacking behaviors (add, refresh, max, etc.)
• Full data pack support – no code required for basic integration
• Developer-friendly API for querying, modifying, and triggering elemental logic

📦 Simple Example Data Pack (reactions/fire_water.json):

{
  "id": "fire_water_steam",
  "elementA": "element_endow:fire",
  "elementB": "element_endow:water",
  "attackEntry": {
    "extraDamage": 3.0,
    "targetEffects": [{"effect": "minecraft:slowness", "duration": 100}]
  },
  "mountData": {
    "elementId": "element_endow:steam",
    "amount": 10.0,
    "duration": 200
  }
}

💻 API Highlights:

IElementSystem system = ElementSystemAPI.getElementSystem();
system.setElementValue(player, "mymod:lightning", 25.0);
reactionSystem.processAttackReaction(attacker, target, damage);
combinationSystem.checkAndApplyCombinations(entity);

Requires Minecraft 1.20.1 | Forge