LootEssenceWorld.cs

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using System.Collections.Generic;
using Terraria;
using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace Loot.Soulforging
{
    internal class LootEssenceWorld : ModWorld
    {
        public HashSet<int> UnlockedCubes = new HashSet<int>();
        // TODO for now default unlocked, until souls are implemented
        public bool SoulforgingUnlocked = true;

        public void UnlockCube(int type)
        {
            UnlockedCubes.Add(type);
        }

        public bool IsCubeUnlocked(int type)
        {
            return UnlockedCubes.Contains(type);
        }

        public override TagCompound Save()
        {
            var items = new Dictionary<string, List<string>>();
            foreach (var type in UnlockedCubes)
            {
                var item = new Item();
                item.SetDefaults(type);
                if (!items.ContainsKey(item.modItem.mod.Name)) items.Add(item.modItem.mod.Name, new List<string>());
                items[item.modItem.mod.Name].Add(item.modItem.Name);
            }
            var tc = new TagCompound();
            foreach (string mod in items.Keys)
            {
                tc.Add(mod, items[mod]);
            }
            return new TagCompound
            {
                {"UnlockedCubes", tc},
                {"SoulforgingUnlocked", SoulforgingUnlocked}
            };
        }

        public override void Load(TagCompound tag)
        {
            foreach (var kvp in tag.GetCompound("UnlockedCubes"))
            {
                var mod = kvp.Key;
                var items = kvp.Value as List<string>;
                items.ForEach(item =>
                {
                    UnlockedCubes.Add(ModLoader.GetMod(mod).ItemType(item));
                });
            }
            SoulforgingUnlocked = tag.GetBool("SoulforgingUnlocked");
        }
    }
}