How do I install Concord in my LÖVE project?

Download the repository and copy the 'concord' folder into your project directory, then require it in your code. There's no built-in package manager support, so manual setup is required, as per the installation instructions.

What are assemblages in Concord and how do I use them?

Assemblages are functions that bundle component assignments to create reusable entity templates. You define an assemblage function to give components to entities, and call it with entity:assemble(), allowing for quick prototyping, as explained in the assemblages section.

Concord vs other ECS libraries for LÖVE, which should I choose?

Concord is optimized for performance and ease of use within LÖVE, making it great for straightforward ECS implementations. However, libraries like Tiny-ECS might offer different trade-offs; compare based on features like event handling or community support for your specific needs.

How to handle collisions in Concord?

Create a collision system that filters entities with relevant components, such as position and collision, then implement logic in the update callback to check for overlaps. This follows Concord's modular design, where systems act on filtered entities.

Is Concord good for large games?

Yes, its performance focus and modular ECS structure support scalability, but ensure efficient system design and be aware of LÖVE's own limitations. The library promotes clean code, which helps manage complexity in larger projects.

Can I use Concord with other Lua game engines?

No, Concord is specifically designed for the LÖVE framework and relies on its event system, so it's not portable to other Lua-based engines without significant modification.

How do I debug systems in Concord?

Use system:setEnable() to toggle systems on and off for debugging, and leverage world events to trace callbacks. The README mentions this for systems displaying debug information, aiding in isolation of issues.

Concord — LÖVE Entity Component System

What is Concord?

Concord is a feature-complete Entity Component System library built for the LÖVE game framework. It provides a structured approach to game development by separating data (components), objects (entities), and logic (systems) to enable modular and reusable code. The library focuses on delivering high performance and an easy-to-use API for developers.

Target Audience

LÖVE developers and Lua programmers building games who want a clean, performant architecture using the ECS pattern. It's ideal for those looking to avoid inheritance-heavy designs and prefer composition.

Value Proposition

Developers choose Concord for its balance of completeness and simplicity—it offers a full ECS implementation without unnecessary complexity, optimized specifically for LÖVE's ecosystem. Its focus on performance and ease of use makes it a practical choice for both small and medium-sized projects.

A feature-complete ECS library

Use Cases

Best For

Building modular game logic in LÖVE projects
Implementing composition-based architecture in Lua games
Creating reusable entity templates with assemblages
Managing game state with clean separation of data and behavior
Optimizing performance in entity-heavy game simulations
Learning ECS concepts within the LÖVE framework

Not Ideal For

Projects not using the LÖVE framework, as Concord is tightly coupled to its ecosystem.
Teams needing advanced ECS features like multi-threading, complex queries, or hierarchical entity management.
Developers who prefer inheritance-based object-oriented design over composition.
Games requiring extensive third-party integrations or plugins, due to Concord's niche community support.

Pros & Cons

Pros

Performance-Focused Design

Built with speed as a primary focus for real-time game logic, ensuring efficient entity processing in LÖVE projects, as stated in the README's emphasis on optimization.

Intuitive API

Features method chaining and utilities like loadNamespace for easy file loading, making code clean and readable, as demonstrated in the API examples.

Modular ECS Structure

Clear separation into components (data), entities (objects), and systems (logic) promotes reusable and maintainable code, with assemblages for entity templating.

Easy Event System

Worlds emit events to trigger system callbacks, simplifying game loop integration, as shown in the quick example with love.update and love.draw.

Cons

LÖVE Dependency

Exclusively tied to the LÖVE framework, limiting portability to other Lua environments or game engines, which restricts broader adoption.

Basic Documentation

The README provides a quick start but lacks in-depth tutorials; detailed docs are auto-generated in LDoc format and may be less accessible for newcomers.

Manual Installation

Requires manually copying folders into the project with no package manager support like LuaRocks, making setup more cumbersome compared to other libraries.

Limited Ecosystem

As a niche library for LÖVE, it has fewer community extensions, plugins, or learning resources, which can slow down development for complex needs.

Frequently Asked Questions

What is Concord?

Target Audience

Value Proposition

Use Cases

Best For

Building modular game logic in LÖVE projects
Implementing composition-based architecture in Lua games
Creating reusable entity templates with assemblages
Managing game state with clean separation of data and behavior
Optimizing performance in entity-heavy game simulations
Learning ECS concepts within the LÖVE framework

Not Ideal For

Projects not using the LÖVE framework, as Concord is tightly coupled to its ecosystem.
Teams needing advanced ECS features like multi-threading, complex queries, or hierarchical entity management.
Developers who prefer inheritance-based object-oriented design over composition.
Games requiring extensive third-party integrations or plugins, due to Concord's niche community support.

Pros & Cons

Pros

Performance-Focused Design

Built with speed as a primary focus for real-time game logic, ensuring efficient entity processing in LÖVE projects, as stated in the README's emphasis on optimization.

Intuitive API

Features method chaining and utilities like loadNamespace for easy file loading, making code clean and readable, as demonstrated in the API examples.

Modular ECS Structure

Clear separation into components (data), entities (objects), and systems (logic) promotes reusable and maintainable code, with assemblages for entity templating.

Easy Event System

Worlds emit events to trigger system callbacks, simplifying game loop integration, as shown in the quick example with love.update and love.draw.

Cons

LÖVE Dependency

Exclusively tied to the LÖVE framework, limiting portability to other Lua environments or game engines, which restricts broader adoption.

Basic Documentation

The README provides a quick start but lacks in-depth tutorials; detailed docs are auto-generated in LDoc format and may be less accessible for newcomers.

Manual Installation

Requires manually copying folders into the project with no package manager support like LuaRocks, making setup more cumbersome compared to other libraries.

Limited Ecosystem

As a niche library for LÖVE, it has fewer community extensions, plugins, or learning resources, which can slow down development for complex needs.

Frequently Asked Questions

Concord

What is Concord?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?

Concord

What is Concord?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?