From 2ff6d047e8eb4b80236c57e1b15907e08a02fd7d Mon Sep 17 00:00:00 2001
From: UnknownShadow200 <unknownshadow200@gmail.com>
Date: Sat, 10 Sep 2016 19:04:35 +1000
Subject: [PATCH] Add a stare instruction for bots that stares at closest
 players, just cause. Also make it so bots don't hunt hidden players.

---
 Bots/Instructions/HunterInstructions.cs | 39 ++++++++++++++++++++++++-
 Bots/Instructions/Instruction.cs        |  7 +++--
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/Bots/Instructions/HunterInstructions.cs b/Bots/Instructions/HunterInstructions.cs
index 3c59a1279..cb08cb6e1 100644
--- a/Bots/Instructions/HunterInstructions.cs
+++ b/Bots/Instructions/HunterInstructions.cs
@@ -34,7 +34,7 @@ namespace MCGalaxy.Bots {
             Player closest = null;
             
             foreach (Player p in players) {
-                if (p.level != bot.level || p.invincible) continue;
+                if (p.level != bot.level || p.invincible || p.hidden) continue;
                 
                 int dx = p.pos[0] - bot.pos[0], dy = p.pos[1] - bot.pos[1], dz = p.pos[2] - bot.pos[2];
                 int playerDist = Math.Abs(dx) + Math.Abs(dy) + Math.Abs(dz);
@@ -119,4 +119,41 @@ namespace MCGalaxy.Bots {
             "%HCauses the bot to kill any players it is touching.",
         };
     }
+    
+    public sealed class StareInstruction : BotInstruction {
+        public override string Name { get { return "stare"; } }
+        
+        public override bool Execute(PlayerBot bot, InstructionData data) {
+            int dist = 20000 * 32;
+            Player[] players = PlayerInfo.Online.Items;
+            Player closest = null;
+            
+            foreach (Player p in players) {
+                if (p.level != bot.level || p.hidden) continue;
+                
+                int dx = p.pos[0] - bot.pos[0], dy = p.pos[1] - bot.pos[1], dz = p.pos[2] - bot.pos[2];
+                int playerDist = Math.Abs(dx) + Math.Abs(dy) + Math.Abs(dz);
+                if (playerDist >= dist) continue;
+                
+                closest = p;
+                dist = playerDist;
+            }
+            
+            if (closest == null) return true;
+            FaceTowards(bot, closest);
+            return true;
+        }
+        
+        static void FaceTowards(PlayerBot bot, Player p) {
+            int dx = p.pos[0] - bot.pos[0], dy = p.pos[1] - bot.pos[1], dz = p.pos[2] - bot.pos[2];
+            Vec3F32 dir = new Vec3F32(dx, dy, dz);
+            dir = Vec3F32.Normalise(dir);
+            DirUtils.GetYawPitch(dir, out bot.rot[0], out bot.rot[1]);
+        }
+        
+        public override string[] Help { get { return help; } }
+        static string[] help = { "%T/botai add [name] stare",
+            "%HCauses the bot to stare at the closest player.",
+        };
+    }
 }
diff --git a/Bots/Instructions/Instruction.cs b/Bots/Instructions/Instruction.cs
index 7f091c14a..43740e9d8 100644
--- a/Bots/Instructions/Instruction.cs
+++ b/Bots/Instructions/Instruction.cs
@@ -47,9 +47,10 @@ namespace MCGalaxy.Bots {
         
         /// <summary> All instructions that bots can execute. </summary>
         public static List<BotInstruction> Instructions = new List<BotInstruction>() {
-            new NodInstruction(), new SpinInstruction(), new HuntInstruction(), new KillInstruction(),      	
-        	new TeleportInstruction(), new WalkInstruction(), new JumpInstruction(), new SpeedInstruction(),        	
-        	new RemoveInstruction(), new ResetInstruction(), new LinkScriptInstruction(), new WaitInstruction(),
+            new NodInstruction(), new SpinInstruction(), 
+            new HuntInstruction(), new KillInstruction(), new StareInstruction(),
+            new TeleportInstruction(), new WalkInstruction(), new JumpInstruction(), new SpeedInstruction(),            
+            new RemoveInstruction(), new ResetInstruction(), new LinkScriptInstruction(), new WaitInstruction(),
         };
         
         /// <summary> Finds the instruction which has the given identifying name. </summary>