riversong-code-showcase/Source/Riversong/Game/World/Agents/AgentSpawnCooldownSystem.cs

using UnityEngine;

namespace DanieleMarotta.RiversongCodeShowcase
{
    [GameSystemGroup(typeof(EarlyAgentsSystemGroup))]
    [UpdateBefore(typeof(AgentsSpawnTickSystem))]
    public class AgentSpawnCooldownSystem : GameSystem, IUpdatable
    {
        [InjectService]
        private IEntityCollection _entityCollection;

        [InjectService]
        private World _world;

        public AgentSpawnCooldownSystem(IServiceLocator serviceLocator) : base(serviceLocator)
        {
        }

        public void Update()
        {
            var laborEfficiencyModifier = _world.ProductionState.LaborEfficiencyModifier;

            foreach (Building building in _entityCollection.GetInternalEntityList(typeof(Building)))
            {
                ref var agentSourceState = ref building.GetAgentSourceStateRW();
                ref var sleepState = ref building.GetSleepStateRW();

                for (var jobIndex = 1; jobIndex < (int)AgentJob.Count; jobIndex++)
                {
                    var cooldown = agentSourceState.SpawnCooldown[jobIndex];
                    if (cooldown <= 0) continue;

                    var efficiencyMultiplier = Mathf.Max(0, 1 + sleepState.EfficiencyModifier + laborEfficiencyModifier);
                    var dt = Time.deltaTime * efficiencyMultiplier;
                    agentSourceState.SpawnCooldown[jobIndex] = Mathf.MoveTowards(cooldown, 0, dt);
                }
            }
        }
    }
}