Unity Event Architecture

A lightweight ScriptableObject-based event system for Unity.

This project demonstrates a simple and decoupled event-driven architecture that allows different GameObjects to communicate without direct references.

The goal of this project is to showcase a clean and modular Unity event system suitable for small and mid-size gameplay systems.

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Features

• ScriptableObject Event Channels
• Decoupled communication between systems
• Multiple listeners per event
• Custom Inspector for debugging
• Modular responder examples
• Clean project structure
• Demo scene included

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Architecture Overview

The system follows a simple event flow:

Invoker ↓ EventChannel (ScriptableObject) ↓ Listeners ↓ Responses

Objects do not directly reference each other.

Instead, they communicate through event channels.

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Core Components

Event Channel

VoidEventChannelSO

ScriptableObject that broadcasts events to registered listeners.

Responsibilities:

• Register listeners
• Unregister listeners
• Raise events

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Event Listener

VoidEventListener

Subscribes to an Event Channel and invokes UnityEvents when the event is raised.

Responsibilities:

• Subscribe on enable
• Unsubscribe on disable
• Execute responses

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Event Invoker

VoidEventInvoker

Raises an event on a specific Event Channel.

Typically triggered by UI buttons or gameplay systems.

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Example Responders

These components demonstrate how listeners can react to events.

DebugLogResponder

Prints a message to the Console.

GameObjectToggleResponder

Toggles the active state of a GameObject.

SetActiveResponder

Sets a GameObject active or inactive.

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Demo Scene

The demo scene contains three event flows:

Debug Log Event

Button → Event → DebugLogResponder

Toggle Cube Event

Button → Event → ToggleCubeResponder → Cube toggles visibility

Show Panel Event

Button → Event → SetActiveResponder → UI Panel appears

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Folder Structure

Assets/_Project │ ├── Scripts │ ├── Runtime │ │ ├── Events │ │ ├── Listeners │ │ └── Examples │ │ │ └── Editor │ └── ScriptableObjects

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Purpose of This Project

This repository was created as a portfolio project to demonstrate:

• Unity architecture skills
• clean and modular code
• event-driven design
• ScriptableObject-based systems

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Future Improvements

Possible extensions:

• Generic Event Channels
• Typed Events (int, float, bool, Vector3)
• Debug tooling
• Event history tracking

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Author

Created by Bora Cingöz

Unity Developer