Store.cs

public enum ItemType {
    Food,
    Key,
    Weapon,
    Cloth,
    World,
    License
}

public class WorldOffset {
    public float X { get; set; }
    public float Y { get; set; }
    public float Z { get; set; }
    public float rX { get; set; }
    public float rY { get; set; }
    public float rZ { get; set; }
}

public class DefaultItem {
    public Guid Id { get; set; }
    public string Name { get; set; }
    public ItemType ItemType { get; set; }

    public float WeightPerStack { get; set; }
    public int MaxInStack { get; set; }
    public decimal? Cost { get; set; }

    public string Icon { get; set; }
    public uint? WorldModel { get; set; }
    public WorldOffset? WorldOffset { get; set; }
    public string EncodedPayload { get; set; }

    public bool CanBeSolded { get; set; }
    public bool CanBeStacked { get; set; }
    public bool CanBeDroped { get; set; }
    public bool CanBeAttached { get; set; }
    public bool CanBeInFastSlot { get; set; }
    public bool CanBeUsed { get; set; }
    public bool CanBeExchanged { get; set; }
}

public abstract class Item {
    public int Id { get; set; }

    public Guid DefaultItemId { get; set; }
    public Guid InventoryId { get; set; }

    public int CellId { get; set; }

    public virtual Inventory Inventory { get; set; }
    public virtual DefaultItem DefaultItem { get; set; }
}

public class FoodItem : Item {
    public float HealthModifier { get; set; }
}

public class License : Item {
    public int LicenseLevel { get; set; }
    public LicenseType LicenseType { get; set; }
}

public enum LicenseType {
    Car,
    Fly,
    Weapon
}

public class KeyItem : Item {
    public Timespan? ExpiresAt { get; set; }
    public Guid RelatedEntity { get; set; }
}

public class WorldItem : Item {
    public float X { get; set; }
    public float Y { get; set; }
    public float Z { get; set; }

    public int Dimension { get; set; }
}

public class ClothItem : Item {
    public IEnumerable<ClothItemModel> ClothesModels { get; set; }
}

public class ClothItemModel {
    public int ComponentId { get; set; }
    public int DrawableId { get; set; }
    public int TextureId { get; set; }

    public ClothItemModel() {}
    public ClothItemModel(int componentId, int drawableId, int textureId) {
        ComponentId = componentId;
        DrawableId = drawableId;
        TextureId = textureId;
    }
}