MagicStorageVoidBag/Items/MSVoidBag.cs

using MagicStorage.Items;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Terraria;
using Terraria.DataStructures;
using Terraria.GameContent.Creative;
using Terraria.ID;
using Terraria.Localization;
using Terraria.ModLoader;
using Terraria.ModLoader.IO;

namespace MagicStorageVoidBag.Items {
    [ExtendsFromMod("MagicStorage")]
    public class MSVoidBag : PortableAccess {
        [CloneByReference]
        internal Dictionary<string, Point16> locationsByWorld = new();

        public override void SetStaticDefaults() {
            CreativeItemSacrificesCatalog.Instance.SacrificeCountNeededByItemId[Type] = 1;
        }

        public override void SetDefaults() {
            Item.width = 26;
            Item.height = 34;
            Item.maxStack = 1;
            Item.rare = ItemRarityID.Purple;
            Item.useStyle = ItemUseStyleID.Swing;
            Item.useAnimation = 28;
            Item.useTime = 28;
            Item.value = Item.sellPrice(gold: 10);

            location = Point16.NegativeOne;
            locationsByWorld[Main.worldName] = location;
        }

        public override void ModifyTooltips(List<TooltipLine> lines) {
            bool isSet = location.X >= 0 && location.Y >= 0;
            for (int k = 0; k < lines.Count; k++)
                if (isSet && lines[k].Mod == "Terraria" && lines[k].Name == "Tooltip1") {
                    lines[k].Text = Language.GetTextValue("Mods.MagicStorage.SetTo", location.X, location.Y);
                } else if (!isSet && lines[k].Mod == "Terraria" && lines[k].Name == "Tooltip2") {
                    lines.RemoveAt(k);
                    k--;
                }
        }

        public override void AddRecipes() {
            Recipe recipe = CreateRecipe();
            recipe.AddIngredient<PortableAccess>();
            recipe.AddIngredient(ItemID.VoidLens);
            recipe.Register();
        }

        public override void UpdateInventory(Player player) {
            if (!locationsByWorld.ContainsKey(Main.worldName) || location != locationsByWorld[Main.worldName]) {
                locationsByWorld[Main.worldName] = location;
                if (Main.netMode == NetmodeID.MultiplayerClient) {
                    int p = Array.IndexOf(Main.player, player);
                    int i = Array.IndexOf(player.inventory, Item);
                    if (p >= 0 && i >= 0) {
                        NetMessage.SendData(MessageID.SyncEquipment, -1, -1, null, p, i, player.inventory[i].prefix);
                    }
                }
            }
        }

        public override void SaveData(TagCompound tag) {
            tag["X"] = location.X;
            tag["Y"] = location.Y;

            tag["version"] = SAVE_VERSION;

            tag["locations"] = locationsByWorld
                .Select(kvp => new TagCompound() {
                    ["world"] = kvp.Key,
                    ["X"] = kvp.Value.X,
                    ["Y"] = kvp.Value.Y
                })
                .ToList();
        }

        public override void LoadData(TagCompound tag) {
            if (tag.GetInt("version") < SAVE_VERSION || tag.GetList<TagCompound>("locations") is not List<TagCompound> locations) {
                location = new Point16(tag.GetShort("X"), tag.GetShort("Y"));
                locationsByWorld[Main.worldName] = location;
            } else {
                locationsByWorld = locations.ToDictionary(t => t.GetString("world"), t => new Point16(t.GetShort("X"), t.GetShort("Y")));
                if (locationsByWorld.ContainsKey(Main.worldName)) {
                    location = locationsByWorld[Main.worldName];
                }
            }
        }

        public override void NetSend(BinaryWriter writer) {
            writer.Write(location.X);
            writer.Write(location.Y);
        }

        public override void NetReceive(BinaryReader reader) {
            location = new Point16(reader.ReadInt16(), reader.ReadInt16());
            locationsByWorld[Main.worldName] = location;
        }
    }
}