HemmiGameArt - WorldManager – Drop-In Time & World Event System

Drop-In Time & Event System for Unreal Engine

World Manager is a lightweight Blueprint system that adds world time, day/night states, and global events to your project — without heavy sky frameworks or complex setup.

Place one actor in your level and your world becomes time-aware.

Key Features

World Time

  • Configurable day length

  • Adjustable real-time to in-game time ratio

  • Custom start time

  • Normalized time value

Day & Night States

  • Automatic detection of:

    • Morning

    • Midday

    • Evening

    • Night

  • Simple IsDay state

  • Events fire only on state changes

Lighting Support

  • Directional Light rotation driven by time

  • Light color & intensity controlled via curves

  • Skylight support

  • Designed for movable lighting

Event System

World Manager broadcasts world state changes through a clean Blueprint interface.

Other actors can react to:

  • Time updates

  • Day/Night transitions

  • New day events

No hard dependencies. No complex setup.

Example Content

The project includes simple example actors to demonstrate usage:

  • Lights reacting to day/night

  • Ambient sounds based on time

  • A simple in-game clock

These assets are examples only and can be removed or replaced.

Designed For

  • Fast prototyping

  • Time-driven gameplay systems

  • Environment logic

  • Simulation & sandbox projects

  • Developers who want clean, extendable systems

Summary

World Manager provides a central authority for world time and events.

Instead of hard-coding behavior everywhere, systems can simply react to the world.

Simple to use. Easy to extend.

World Manager v1.1 is now available

This update focuses on simplifying integration and reducing setup friction.

– Added a Blueprint Function Library to make time access and event requests easier
– Updated documentation with a clearer integration overview

Documentation:
:backhand_index_pointing_right: Documentation_WorldManager - Google Docs