first commit, even though I've been "done" with the mod for like ever

Buffs/Parasitism.cs

@@ -0,0 +1,85 @@
+using Siva.Projectiles;
+using Terraria;
+using Terraria.ModLoader;
+
+
+namespace Siva.Buffs
+{
+    public class Parasitism : ModBuff
+    {
+        public static readonly int BuffType = ModContent.BuffType<Parasitism>();
+
+        public override void SetStaticDefaults()
+        {
+            Main.debuff[Type] = true;  // Indicates this is a negative effect.
+            Main.buffNoSave[Type] = true;  // Indicates that the buff won't save when exiting the game.
+            Main.buffNoTimeDisplay[Type] = false; // Shows the duration on the buff icon.
+        }
+
+    // What happens while the debuff is a applied
+        public override void Update(NPC npc, ref int buffIndex)
+        {
+            // Do I make them glow red or anything?
+        }
+
+        public static int AttachedNaniteCount(NPC npc)
+        {
+            int attachedNanites = 0;
+            foreach (var p in Main.ActiveProjectiles)
+            {
+                if (p.type == SIVANanite.ProjectileType && p.ai[0] == 1f && p.ai[1] == npc.whoAmI) {
+                    attachedNanites++;
+                    // Main.NewText($"{attachedNanites}"); // Debug text
+                }
+            }
+            return attachedNanites;
+        }
+
+        public static float GetParasitismScaleFactor(int attachedNanites)
+        {
+            if(attachedNanites <= 5)
+            {
+                return attachedNanites*0.3f;
+            }
+            else if(attachedNanites > 5 && attachedNanites < 100)
+            {
+                return (attachedNanites-5)*0.021f+1.5f;
+            }
+            else if(attachedNanites >= 100)
+            {
+                return 3.5f;
+            }
+            else
+            {
+                return 0f;
+            }
+        }
+
+        public class ParasitismScaling : GlobalNPC
+        {
+            public override bool InstancePerEntity => true;
+
+            public override void ModifyHitByProjectile(NPC npc, Projectile projectile, ref NPC.HitModifiers modifiers)
+            {
+                if(LogicPerfected.ParasitismOnTarget(npc) && projectile.owner == Main.myPlayer) // Check to make sure the projectile is the local players rather than any other projectils from any other gun. Trying to prevent hypothetical exploits.
+                {
+                    if(LogicPerfected.NormBullet(projectile))
+                    {
+                            float scaleFactor = GetParasitismScaleFactor(AttachedNaniteCount(npc));
+                            AddableFloat addableScaleFactor = AddableFloat.Zero + scaleFactor;
+                            modifiers.ScalingBonusDamage = addableScaleFactor;
+                            Main.NewText($"norm {scaleFactor}"); // debug text
+                    }
+                    else if(LogicPerfected.MasterBulletOrNanite(projectile))
+                    {
+                            float scaleFactor = GetParasitismScaleFactor(AttachedNaniteCount(npc));
+                            AddableFloat addableScaleFactor = AddableFloat.Zero + scaleFactor;
+                            modifiers.ScalingBonusDamage = addableScaleFactor;
+                            Main.NewText($"master {scaleFactor}"); // debug text
+                    }
+                }
+            }
+        }
+    }
+}
+