AutoTrashPlayer.cs

using Microsoft.Xna.Framework.Input;
using System;
using System.Collections.Generic;
using System.Linq;
using Terraria;
using Terraria.ID;
using Terraria.ModLoader;
using Terraria.ModLoader.Default;
using Terraria.ModLoader.IO;

namespace AutoTrash
{
	internal class AutoTrashPlayer : ModPlayer
	{
		public bool AutoTrashEnabled = false;
		public List<Item> AutoTrashItems;
		public Item LastAutoTrashItem;

		public bool NoValue;
		internal bool NoValueBelongs(Item item) => item.value == 0 && !ItemID.Sets.NebulaPickup[item.type] && !heartsAndMana.Contains(item.type) && !ItemID.Sets.BossBag[item.type] && item.type != ItemID.DefenderMedal;
		internal static int[] heartsAndMana = new int[] { 58, 1734, 1867, 184, 1735, 1868 };

		public override void Initialize() {
			AutoTrashItems = new List<Item>();
			LastAutoTrashItem = new Item();
			LastAutoTrashItem.SetDefaults(0, true);
			AutoTrashEnabled = false;
			NoValue = false;
		}

		public override void SaveData(TagCompound tag) {
			AutoTrashItems.RemoveAll(x => x.ModItem is UnloadedItem);
			tag[nameof(AutoTrashItems)] = AutoTrashItems;
			tag[nameof(AutoTrashEnabled)] = AutoTrashEnabled;
			tag[nameof(NoValue)] = NoValue;
		}

		public override void LoadData(TagCompound tag) {
			AutoTrashItems = tag.Get<List<Item>>(nameof(AutoTrashItems));
			AutoTrashEnabled = tag.GetBool(nameof(AutoTrashEnabled));
			NoValue = tag.GetBool(nameof(NoValue));

			AutoTrash.instance.autoTrashListUI?.UpdateNeeded();
		}

		internal static bool IsModItem(Item item) {
			return item.type >= ItemID.Count;
		}

		internal bool ShouldItemBeTrashed(Item item) {
			return AutoTrashItems.Where(x => x.type == item.type).Any() || (NoValue && NoValueBelongs(item));
		}

		public override bool ShiftClickSlot(Item[] inventory, int context, int slot) {
			if (context == Terraria.UI.ItemSlot.Context.InventoryItem || context == Terraria.UI.ItemSlot.Context.InventoryCoin || context == Terraria.UI.ItemSlot.Context.InventoryAmmo) {
				if (Main.keyState.IsKeyDown(Keys.LeftControl) || Main.keyState.IsKeyDown(Keys.RightControl)) {
					if (AutoTrashEnabled && (!AutoTrashItems.Any(x => x.type == inventory[slot].type) || ModContent.GetInstance<AutoTrashClientConfig>().SellInstead) && !inventory[slot].favorited) {
						Terraria.Audio.SoundEngine.PlaySound(SoundID.Grab);

						if (!AutoTrashItems.Any(x => x.type == inventory[slot].type)) {
							Item newItem = new Item();
							newItem.SetDefaults(inventory[slot].type);
							AutoTrashItems.Add(newItem);
						}

						LastAutoTrashItem = inventory[slot].Clone();
						OnItemAutotrashed();

						inventory[slot].SetDefaults();

						AutoTrash.instance.autoTrashListUI.UpdateNeeded();
						return true;
					}
				}
			}
			return false; // do default behavior.
		}

		public static HashSet<int> caughtFish = new HashSet<int>();
		public override void PreUpdate() {
			// Fishing uses player.GetItem bypassing AutoTrash.
			if (Main.myPlayer == Player.whoAmI) {
				if (caughtFish.Count > 0) // type vs Item filter?
				{
					var toDelete = AutoTrashItems.Select(x => x.type).Intersect(caughtFish);
					for (int i = 0; i < 59; i++) {
						Item item = Player.inventory[i];
						if (!item.IsAir && item.newAndShiny && toDelete.Contains(item.type)) {
							// TODO: Analyze performance impact? do every 60 frames only?
							LastAutoTrashItem = item.Clone();
							OnItemAutotrashed();
							item.TurnToAir();
							// break; Multi-lure catches multiple items in 1 tick
						}
					}
					caughtFish.Clear();
				}
			}
		}

		public void OnItemAutotrashed() {
			var clientconfig = ModContent.GetInstance<AutoTrashClientConfig>();
			var serverconfig = ModContent.GetInstance<AutoTrashServerConfig>();

			if (clientconfig.SellInstead && LastAutoTrashItem.value > 0 && !(LastAutoTrashItem.type >= ItemID.CopperCoin && LastAutoTrashItem.type <= ItemID.PlatinumCoin)) {
				float sellPercent = (serverconfig.SellValue >= 1 ? serverconfig.SellValue : 1) / 100f;
				var value = Math.Floor((double)(LastAutoTrashItem.value * LastAutoTrashItem.stack * sellPercent));

				var plat = Math.Floor(value / Item.platinum);
				var gold = Math.Floor((value - (plat * Item.platinum)) / Item.gold);
				var silver = Math.Floor((value - (plat * Item.platinum) - (gold * Item.gold)) / Item.silver);
				var copper = Math.Floor(value - (plat * Item.platinum) - (gold * Item.gold) - (silver * Item.silver));

				Terraria.DataStructures.IEntitySource source = Main.LocalPlayer.GetSource_OpenItem(LastAutoTrashItem.type);
				if (plat > 0) 
					Player.QuickSpawnItem(source, ItemID.PlatinumCoin, (int)plat);
				if (gold > 0)
					Player.QuickSpawnItem(source, ItemID.GoldCoin, (int)gold);
				if (silver > 0)
					Player.QuickSpawnItem(source, ItemID.SilverCoin, (int)silver);
				if (copper > 0)
					Player.QuickSpawnItem(source, ItemID.CopperCoin, (int)copper);
			}
		}
	}
}