Add AI components and systems for enhanced enemy behavior and pathfinding

GameCore/Movement/RotationSystem.cs

@@ -1,6 +1,7 @@
 using GameCore.ECS;
 using GameCore.ECS.Interfaces;
 using GameCore.Input;
+using GameCore.Player;
 
 namespace GameCore.Movement;
 
@@ -18,10 +19,28 @@ public class RotationSystem : ISystem
             var rotation = world.GetComponent<RotationComponent>(entity);
 
             if (input == null || rotation == null)
+            {
+                world.Logger.Warn("RotationSystem: Missing InputStateComponent or RotationComponent.");
                 continue;
+            }
+
+            if (world.GetComponent<PlayerComponent>(entity) != null)
+            {
+                rotation.Rotation.Y += input.LookDirection.Y;
+                rotation.Rotation.X += input.LookDirection.X;
+            }
+            else
+            {
+                if (input.LookDirection.Length() > 0.001f)
+                {
+                    var lookDir = input.LookDirection;
+                    rotation.Rotation.Y = (float)System.Math.Atan2(lookDir.X, lookDir.Z);
+
+                    var horizontalDist = (float)System.Math.Sqrt(lookDir.X * lookDir.X + lookDir.Z * lookDir.Z);
+                    rotation.Rotation.X = -(float)System.Math.Atan2(lookDir.Y, horizontalDist);
+                }
+            }
 
-            rotation.Rotation.Y += input.LookDirection.Y;
-            rotation.Rotation.X += input.LookDirection.X;
 
             rotation.Rotation.X = System.Math.Clamp(rotation.Rotation.X, MinPitch, MaxPitch);
         }