nothing personel kid

Items/KatanaRedo.cs

@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using Microsoft.Xna.Framework;
+using Terraria;
+using Terraria.Chat;
+using Terraria.ID;
+using Terraria.Localization;
+using Terraria.ModLoader;
+
+namespace YHTMod.Items;
+
+public class KatanaRedo : GlobalItem {
+    
+    public override void ModifyTooltips(Item item, List<TooltipLine> tooltips)
+    {
+        if (item.type == ItemID.Katana) {
+            tooltips.Insert(5, new TooltipLine(YHTMod.GetInstance(), "flavor" , "Nothing personel kid."));
+            tooltips.Insert(6, new TooltipLine(YHTMod.GetInstance(), "usage" , "Right click to teleport behind them."));
+        }
+        
+    }
+
+    public override bool AltFunctionUse(Item item, Player player) {
+        if (item.type == ItemID.Katana) {
+            return true;
+        }
+
+        return base.AltFunctionUse(item, player);
+    }
+
+    public override bool? UseItem(Item item, Player player) {
+        if (item.type != ItemID.Katana || player.altFunctionUse != 2) return null;
+        for (int i = 0; i < Main.maxNPCs; i++) {
+            NPC npc = Main.npc[i];
+            if (!npc.CanBeChasedBy()) continue;
+
+            float between = Vector2.Distance(npc.Center, player.Center);
+            bool inRange = between < 650;
+            
+            bool lineOfSight = Collision.CanHitLine(player.position, player.width, player.height, npc.position,
+                npc.width, npc.height);
+            
+            if (inRange && lineOfSight) {
+                Vector2 tpPos = npc.position;
+                tpPos.X += -(npc.direction * npc.width + (player.width*2));
+
+                ChatHelper.DisplayMessage(NetworkText.FromLiteral(npc.TypeName+" "+tpPos), Color.Aqua, 0 );
+                if (Collision.TileCollision(tpPos, Vector2.Zero, player.width, player.height) != Vector2.Zero) return true;
+                
+                player.Teleport(tpPos, TeleportationStyleID.RodOfDiscord);
+                player.velocity = Vector2.Zero;
+                player.NinjaDodge();
+                return true;
+            }
+        }
+        
+        return null;
+    }
+}

YHTMod.cs

@@ -2,8 +2,13 @@ using Terraria.ModLoader;
 
 namespace YHTMod {
 	public class YHTMod : Mod {
+		private static YHTMod mod;
 		public YHTMod() {
+			mod = this;
+		}
 
+		public static YHTMod GetInstance() {
+			return mod;
 		}
 	}
 }