update to newest tmodloader version

Items/ArcaneMissile/ArcaneMissile.cs

@@ -0,0 +1,33 @@
+using Terraria;
+using Terraria.GameContent.Creative;
+using Terraria.ID;
+using Terraria.ModLoader;
+
+namespace YHTMod.Items.ArcaneMissile;
+
+public class ArcaneMissile : ModItem
+{
+    public override void SetStaticDefaults()
+    {
+        CreativeItemSacrificesCatalog.Instance.SacrificeCountNeededByItemId[Type] = 1;
+    }
+
+    public override void SetDefaults()
+    {
+        Item.width = 64;
+        Item.height = 64;
+        Item.accessory = true;
+        Item.damage = 10;
+        Item.rare = ItemRarityID.LightRed;
+        Item.DamageType = DamageClass.Magic;
+        Item.noMelee = true;
+        Item.noUseGraphic = true;
+    }
+
+    public override void UpdateAccessory(Player player, bool hideVisual)
+    {
+        player.GetModPlayer<YhtPlayer>().arcaneMissle = Item.damage;
+
+        base.UpdateAccessory(player, hideVisual);
+    }
+}

Items/ArcaneMissile/ArcaneMissileBehavior.cs

@@ -0,0 +1,50 @@
+using Terraria;
+using Terraria.ID;
+using Terraria.ModLoader;
+
+namespace YHTMod.Items.ArcaneMissile;
+
+public class ArcaneMissileBehavior : GlobalNPC
+{
+    public override void OnHitByProjectile(NPC npc, Projectile projectile, NPC.HitInfo hitInfo, int damage)
+    {
+        if (!hitInfo.Crit)
+        {
+            base.OnHitByProjectile(npc, projectile, hitInfo, damage);
+            return;
+        }
+
+        if (Main.netMode == NetmodeID.Server)
+        {
+            return;
+        }
+
+        var player = Main.LocalPlayer;
+
+        if (player.GetModPlayer<YhtPlayer>().arcaneMissle != 0 && projectile.DamageType == DamageClass.Magic)
+        {
+            // player just crit with magic weapon while having arcane missile accessory
+            var proj = Projectile.NewProjectileDirect(
+                projectile.GetSource_FromThis("arcaneMissile"),
+                Main.LocalPlayer.position,
+                npc.position.DirectionFrom(Main.LocalPlayer.position),
+                ProjectileID.MagicMissile,
+                player.GetModPlayer<YhtPlayer>().arcaneMissle,
+                0,
+                Main.LocalPlayer.whoAmI
+            );
+            proj.friendly = true;
+            proj.hostile = false;
+            proj.timeLeft = 300;
+            proj.maxPenetrate = 1;
+            proj.tileCollide = false;
+            proj.DamageType = DamageClass.Magic;
+            proj.aiStyle = ProjAIStyleID.MagicMissile;
+
+            // Prevent crits for the missiles
+            proj.CritChance = int.MinValue;
+        }
+
+        base.OnHitByProjectile(npc, projectile, hitInfo, damage);
+    }
+}