Simple header-only ECS written in C++17
There's ecs/Demo.hpp file showcasing the usage of this library.
Create some component
struct Gravity
{
float force;
};
Register it using Registry instance:
registry.RegisterComponent<Gravity>();
Implement derived System class and register it
auto physicsSystem = registry.RegisterSystem<PhysicsSystem>();
Set signature for a system. The Registry will automatically add related entities to your system using system's signature
Signature signature;
signature.set(registry.GetComponentType<Gravity>());
signature.set(registry.GetComponentType<RigidBody>());
signature.set(registry.GetComponentType<Transform>());
registry.SetSystemSignature<PhysicsSystem>(signature);
Construct entity and set some components to it:
auto entity = registry.ConstructEntity();
registry.AddComponent(entity, Gravity{randGravity(generator)});