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Caelus API Wiki & Guide

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A coremod and API that provides developers access to elytra flight mechanics through an entity attribute.

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Contents (5)
  1. Overview
  2. Guides
  3. Frequently asked questions
  4. Gallery
  5. You May Also Like

Overview

Caelus API is a small library / API mod. It adds no blocks, items, or creatures of its own. Its entire job is to take the elytra's fall-flying (gliding) behaviour and turn it into a single, controllable entity attribute that other mods can read and write.

In vanilla, gliding is hard-wired: you can only fly when an elytra is worn in the chest armour slot and it has the glider data component. Caelus API replaces that fixed rule with the caelus:fall_flying attribute - if an entity's value for this attribute is high enough, the entity is allowed to glide; if it is not, the entity cannot. This makes "can this entity glide right now?" a flexible, stackable value instead of a single yes/no check on one slot.

Because it is a dependency, it is present in your game only because another mod relies on it.

Caelus API is a small library / API mod. It adds no blocks, items, or creatures of its own. Its entire job is to take the elytra's fall-flying (gliding) behaviour and turn it into a single, controllable entity attribute that other mods can read and write.

In vanilla, gliding is hard-wired: you can only fly when an elytra is worn in the chest armour slot and it has the glider data component. Caelus API replaces that fixed rule with the caelus:fall_flying attribute - if an entity's value for this attribute is high enough, the entity is allowed to glide; if it is not, the entity cannot. This makes "can this entity glide right now?" a flexible, stackable value instead of a single yes/no check on one slot.

Because it is a dependency, it is present in your game only because another mod relies on it.

Guides

Step-by-step, in-game.

Caelus API Do I Need This?Yes - if another mod relies on it. Caelus API is a required dependency for mods that move elytra flight off the chest…Caelus API The Fall-Flying Attributecaelus:fall_flying - the core attribute. A small base value (gliding off) plus modifiers from flight-granting…Caelus API TipsCaelus API does not give you flight by itself - you still need a flight source (an elytra, or an item/slot from a mod…Gliding From Any Source in Caelus APIBecause flight is decided by an attribute, dependent mods can grant gliding without using the vanilla chest slot at…How It Works in Caelus APICaelus API registers a new entity attribute, caelus:fall_flying , on living entities. The attribute has a small base…What Caelus API DoesA Library, Not a Gameplay Mod Caelus API is a coremod and API, not a content mod. It does not add elytra items,…

Frequently asked questions

What is Caelus API?
Caelus API is a coremod and API that gives developers access to elytra flight mechanics through an entity attribute.
Is Caelus API a content mod that adds elytras or items?
No, it is a coremod and API rather than a content mod, so it provides flight mechanics access for developers instead of adding its own items.
How do developers access elytra flight mechanics with Caelus API?
They access them through an entity attribute that the API exposes.
What kind of mod is Caelus API?
It is a coremod and API.

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