Aetheria/Assets/Scripts/ServerShared/Behaviors/Cooldown.cs

using System;
using System.Linq;
using MessagePack;
using Newtonsoft.Json;

[InspectableField, MessagePackObject, JsonObject(MemberSerialization.OptIn), Order(-10), RuntimeInspectable]
public class CooldownData : BehaviorData
{
    [InspectableField, JsonProperty("cooldown"), Key(1), RuntimeInspectable]
    public PerformanceStat Cooldown = new PerformanceStat();
    
    public override IBehavior CreateInstance(ItemManager context, Entity entity, EquippedItem item)
    {
        return new Cooldown(context, this, entity, item);
    }
}

public class Cooldown : IBehavior, IAlwaysUpdatedBehavior
{
    private CooldownData _data;
    public BehaviorData Data => _data;

    private Entity Entity { get; }
    private EquippedItem Item { get; }
    private ItemManager Context { get; }

    private float _cooldown; // Normalized

    public Cooldown(ItemManager context, CooldownData data, Entity entity, EquippedItem item)
    {
        _data = data;
        Entity = entity;
        Item = item;
        Context = context;
    }

    public bool Update(float delta)
    {
        if (_cooldown < 0)
        {
            _cooldown = 1;
            return true;
        }

        return false;

    }

    public void AlwaysUpdate(float delta)
    {
        _cooldown -= delta / Context.Evaluate(_data.Cooldown, Item.EquippableItem, Entity);
    }
}