Updated Skeleton Town NPC.

Content/NPCs/TownNPCs/Skeleton.cs

@@ -15,7 +15,7 @@ namespace Decimation.Content.NPCs.TownNPCs
     [AutoloadHead]
     public class Skeleton : ModNPC
     {
-        private readonly List<string> names = new List<string>
+        private static readonly List<string> Names = new List<string>
         {
             "Tommy",
             "Johnny",
@@ -27,34 +27,34 @@ namespace Decimation.Content.NPCs.TownNPCs
         public override bool Autoload(ref string name)
         {
             name = "Skeleton";
-            return this.mod.Properties.Autoload;
+            return mod.Properties.Autoload;
         }
 
         public override void SetStaticDefaults()
         {
-            Main.npcFrameCount[this.npc.type] = 26;
-            NPCID.Sets.ExtraFramesCount[this.npc.type] = NPCID.Sets.ExtraFramesCount[NPCID.Guide];
-            NPCID.Sets.AttackFrameCount[this.npc.type] = NPCID.Sets.AttackFrameCount[NPCID.Guide];
-            NPCID.Sets.DangerDetectRange[this.npc.type] = 400;
-            NPCID.Sets.AttackType[this.npc.type] = 0;
-            NPCID.Sets.AttackTime[this.npc.type] = 60;
-            NPCID.Sets.AttackAverageChance[this.npc.type] = 30;
-            NPCID.Sets.HatOffsetY[this.npc.type] = 4;
+            Main.npcFrameCount[npc.type] = 26;
+            NPCID.Sets.ExtraFramesCount[npc.type] = NPCID.Sets.ExtraFramesCount[NPCID.Guide];
+            NPCID.Sets.AttackFrameCount[npc.type] = NPCID.Sets.AttackFrameCount[NPCID.Guide];
+            NPCID.Sets.DangerDetectRange[npc.type] = 400;
+            NPCID.Sets.AttackType[npc.type] = 0;
+            NPCID.Sets.AttackTime[npc.type] = 60;
+            NPCID.Sets.AttackAverageChance[npc.type] = 30;
+            NPCID.Sets.HatOffsetY[npc.type] = 4;
         }
 
         public override void SetDefaults()
         {
-            NPCID.Sets.AttackType[this.npc.type] = 0;
-            this.npc.CloneDefaults(NPCID.Guide);
-            this.npc.townNPC = true;
-            this.npc.friendly = true;
-            this.npc.aiStyle = 7;
-            this.npc.damage = 10;
-            this.npc.defense = 15;
-            this.npc.lifeMax = 250;
-            this.npc.HitSound = SoundID.DD2_SkeletonHurt;
-            this.npc.DeathSound = SoundID.DD2_SkeletonDeath;
-            this.npc.knockBackResist = 0.5f;
+            NPCID.Sets.AttackType[npc.type] = 0;
+            npc.CloneDefaults(NPCID.Guide);
+            npc.townNPC = true;
+            npc.friendly = true;
+            npc.aiStyle = 7;
+            npc.damage = 10;
+            npc.defense = 15;
+            npc.lifeMax = 250;
+            npc.HitSound = SoundID.DD2_SkeletonHurt;
+            npc.DeathSound = SoundID.DD2_SkeletonDeath;
+            npc.knockBackResist = 0.5f;
             animationType = NPCID.Guide;
         }
 
@@ -90,7 +90,7 @@ namespace Decimation.Content.NPCs.TownNPCs
 
         public override string TownNPCName()
         {
-            return names[Main.rand.Next(5)];
+            return Names[Main.rand.Next(5)];
         }
 
         public override string GetChat()

Content/Projectiles/SkeletonBone.cs

@@ -1,16 +1,64 @@
-using System;
-using System.IO;
-using Decimation.Content.Items.Weapons;
-using Decimation.Lib.Items;
+using Decimation.Lib.Items;
+using Decimation.Lib.Util;
+using Microsoft.Xna.Framework;
 using Terraria;
 using Terraria.ID;
-using Terraria.ModLoader;
 
 namespace Decimation.Content.Projectiles
 {
-   internal class SkeletonBone : DecimationProjectile
+    internal class SkeletonBone : DecimationProjectile
     {
-        private float maxSpeed = 5f;
+        private const int IdlingCounterMax = 60;
+        private const int TargetingCounterMax = 90;
+        private const float IdlingVelocity = 5f;
+        private const float AttackingVelocity = 10f;
+
+        private AiState State
+        {
+            get
+            {
+                {
+                    switch ((int) projectile.ai[0])
+                    {
+                        case 0: return AiState.Idling;
+                        case 1: return AiState.Targeting;
+                        default: return AiState.Attacking;
+                    }
+                }
+            }
+            set
+            {
+                int state;
+                switch (value)
+                {
+                    case AiState.Idling:
+                        state = 0;
+                        break;
+                    case AiState.Targeting:
+                        state = 1;
+                        break;
+                    default:
+                        state = 2;
+                        break;
+                }
+
+                projectile.ai[0] = state;
+            }
+        }
+
+        private int Counter
+        {
+            get => (int) projectile.ai[1];
+            set => projectile.ai[1] = value;
+        }
+
+        private int Target
+        {
+            get => (int) projectile.localAI[0];
+            set => projectile.localAI[0] = value;
+        }
+
+        private NPC TargetNPC => Main.npc[Target];
 
         protected override void Init()
         {
@@ -20,76 +68,108 @@ namespace Decimation.Content.Projectiles
             projectile.ignoreWater = true;
             projectile.tileCollide = false;
             DamageType = DecimationWeapon.DamageType.Ranged;
-            projectile.penetrate = 2;
-            projectile.timeLeft = 60;
+            projectile.penetrate = -1;
+            projectile.damage = 0;
+            projectile.timeLeft = 600;
+            projectile.friendly = false;
+            projectile.hostile = false;
+            projectile.damage = 80;
 
             Damages = Main.expertMode ? 57 : 20;
-            projectile.localAI[0] = 15;
+            Target = 255;
         }
 
-        // ai 0: target, ai 1: state, localAI 0: rotation
-
-        private int counter = 0;
-
         public override void AI()
         {
-            /*if (projectile.ai[1] == 0)
+            if (State == AiState.Idling)
             {
-                projectile.localAI[0] = 15;
+                projectile.rotation += MathHelper.Pi * (1 / 64f);
+                projectile.velocity.Normalize();
+                projectile.velocity *= IdlingVelocity;
 
-                if (timeLeft < 10)
+                if (Counter > IdlingCounterMax)
                 {
-                    projectile.ai[1]++;
-                    timeLeft = 600;
-                    projectile.velocity *= 0;
+                    Counter = 0;
+                    State = AiState.Targeting;
                 }
+
+                Counter++;
             }
-            else if (projectile.ai[1] == 1)
+            else if (State == AiState.Targeting)
             {
-                if (Main.netMode != 1)
-                    counter++;
+                projectile.velocity *= 0f;
+                projectile.rotation += MathHelper.Pi * (1 / 64f) * (1 + Counter / 10);
 
-                projectile.localAI[0] += 4;
-
-                if (counter >= 60)
+                if (Counter > TargetingCounterMax)
                 {
-                    projectile.ai[1]++;
-                    counter = 0;
+                    FindTarget();
+
+                    State = AiState.Attacking;
                 }
+
+                Counter++;
             }
-            else if (projectile.ai[1] == 2)
+            else if (State == AiState.Attacking)
             {
-                NPC target = NPC.get
-                Vector2 velocity = target.position - projectile.position;
-
-                float magnitude = (float)Math.Sqrt(velocity.X * velocity.X + velocity.Y * velocity.Y);
-                if (magnitude > maxSpeed)
+                if (Target >= 255)
                 {
-                    float ratio = maxSpeed / magnitude;
-                    velocity.X *= ratio;
-                    velocity.Y *= ratio;
+                    projectile.Kill();
+                    return;
                 }
 
+                Vector2 velocity = TargetNPC.Center - projectile.Center;
+                velocity.Normalize();
+                velocity *= AttackingVelocity;
+
+                projectile.friendly = true;
+                projectile.penetrate = 1;
                 projectile.velocity = velocity;
-                projectile.ai[1]++;
-            }*/
+                projectile.rotation += MathHelper.Pi * (1 / 64f) * (1 + Counter / 10);
+            }
 
-            projectile.rotation += (float)(Math.PI / projectile.localAI[0]);
+            int dust = Dust.NewDust(projectile.position, projectile.width, projectile.height, 125);
+            Main.dust[dust].noGravity = true;
+            Lighting.AddLight(projectile.Center, LightingUtils.Rgb255ToRgb1(143, 214, 255));
         }
 
-        public override void SendExtraAI(BinaryWriter writer)
+        public override void Kill(int timeLeft)
         {
-            writer.Write(counter);
-        }
-
-        public override void ReceiveExtraAI(BinaryReader reader)
-        {
-            counter = reader.ReadInt32();
+            DustUtils.NewDustCircle(8, projectile.position, projectile.width, projectile.height, 135,
+                projectile.scale * 4f);
         }
 
         public override void OnHitPlayer(Player target, int damage, bool crit)
         {
             if (Main.expertMode && Main.rand.Next(100) < 35) target.AddBuff(BuffID.Confused, 600);
         }
+
+        private void FindTarget()
+        {
+            if (Target >= 255)
+            {
+                float lastDistance = float.MaxValue;
+
+                for (int i = 0; i < Main.npc.Length; i++)
+                {
+                    NPC npc = Main.npc[i];
+                    if (npc != null && npc.active && !npc.townNPC && npc.damage > 0 && projectile.CanHit(npc))
+                    {
+                        float distance = projectile.Distance(npc.Center);
+                        if (distance < 400f && distance < lastDistance)
+                        {
+                            lastDistance = distance;
+                            Target = i;
+                        }
+                    }
+                }
+            }
+        }
+
+        private enum AiState
+        {
+            Idling = 0,
+            Targeting = 1,
+            Attacking = 2
+        }
     }
-}
+}