RobustToolbox/Robust.Shared/GameObjects/Systems/SharedPointLightSystem.cs

using Robust.Shared.GameStates;

namespace Robust.Shared.GameObjects
{
    public abstract class SharedPointLightSystem : EntitySystem
    {
        public override void Initialize()
        {
            base.Initialize();
            SubscribeLocalEvent<SharedPointLightComponent, ComponentGetState>(GetCompState);
            SubscribeLocalEvent<SharedPointLightComponent, ComponentHandleState>(HandleCompState);
        }

        private void GetCompState(EntityUid uid, SharedPointLightComponent component, ref ComponentGetState args)
        {
            args.State = new PointLightComponentState(component.Enabled, component.Color, component.Radius, component.Offset, component.Energy, component.Softness);
        }

        private void HandleCompState(EntityUid uid, SharedPointLightComponent component, ref ComponentHandleState args)
        {
            if (args.Current is not PointLightComponentState newState) return;
            component.Enabled = newState.Enabled;
            component.Radius = newState.Radius;
            component.Offset = newState.Offset;
            component.Color = newState.Color;
            component.Energy = newState.Energy;
            component.Softness = newState.Softness;
        }
    }
}