aleksandrpp / jecs Goto Github PK

In Unity, we have a default component such as Transform, Renderer, Collider, etc. So why not create an ECS based on the built-in Unity Components by simply adding systems to game objects, allowing for writing scalable modular code.

The library uses prototypes to create Entity, and all Unity Component objects are "baked" for quick access and filtering.

Systems are written separately, and their updates are performed based on the set priority in the necessary callback - Update, FixedUpdate, LateUpdate.

[ExecutionGroup(SystemGroup.Update), ExecutionOrder(100)]
public class MovementSystem : ISystem
{
    public void Update(HashSet<Entity> entities)
    {
        entities.Foreach<Transform, Velocity>((entity, transform, velocity) =>
        {
            transform.position += velocity.Value * Time.deltaTime;
        });
    }
}

Systems, like components, can be added and removed in real-time, and their sorting occurs during addition.

_entityWorld = new EntityWorld();
_entityWorld.AddSystem(new MovementSystem());
_entityWorld.RemoveSystem<MovementSystem>();

v0.0.3

https://github.com/aleksandrpp/JEcs