from medium upwards, ai goes to middle when idle

Assets/Prefabs/Player.prefab

@@ -13,7 +13,6 @@ GameObject:
   - component: {fileID: 5402279313309450412}
   - component: {fileID: 1666507220592599477}
   - component: {fileID: 1287955657}
-  - component: {fileID: 6551590900950860653}
   m_Layer: 0
   m_Name: Player
   m_TagString: Untagged
@@ -30,7 +29,7 @@ Transform:
   m_GameObject: {fileID: 5402279313309450415}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
-  m_LocalScale: {x: 4, y: 4, z: 4}
+  m_LocalScale: {x: 4, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 0}
@@ -121,7 +120,7 @@ PolygonCollider2D:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 5402279313309450415}
-  m_Enabled: 0
+  m_Enabled: 1
   m_Density: 1
   m_Material: {fileID: 6200000, guid: 2d231bbc8208f52c797c91aa2030f60f, type: 2}
   m_IsTrigger: 0
@@ -192,19 +191,3 @@ MonoBehaviour:
   AlwaysReplicateAsRoot: 0
   DontDestroyWithOwner: 0
   AutoObjectParentSync: 1
---- !u!58 &6551590900950860653
-CircleCollider2D:
-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 5402279313309450415}
-  m_Enabled: 1
-  m_Density: 1
-  m_Material: {fileID: 6200000, guid: 2d231bbc8208f52c797c91aa2030f60f, type: 2}
-  m_IsTrigger: 0
-  m_UsedByEffector: 0
-  m_UsedByComposite: 0
-  m_Offset: {x: 0, y: 0}
-  serializedVersion: 2
-  m_Radius: 0.5

Assets/Scripts/Game/AIPlayer.cs

@@ -8,8 +8,6 @@ namespace Game {
 
 		/*
 		* Possible optimizations:
-		*	
-		* - Move to center when idle
 		* - Ignore impossible balls
 		* - Try to hit ball with edge
 		*/
@@ -120,8 +118,9 @@ namespace Game {
 			var approaching = balls.Where(BallApproaches).ToList();
 
 			if (approaching.Count == 0)
-				return X();
+				return Difficulty >= Difficulty.Medium ? 0 : X();
 
+			// Nearest by Y-Distance
 			Ball ball = approaching.Aggregate(approaching[0], (prev, current) => YDistanceToBall(current) < YDistanceToBall(prev) ? current : prev);
 			
 			Vector2 origin = ball.Rb.position;

Assets/Scripts/Game/GameManager.cs

@@ -49,6 +49,9 @@ namespace Game {
 		}
 
 		private void Start() {
+			Settings.Type = Type.Hybrid;
+			Settings.AIDifficulty = Difficulty.Easy;
+
 			var ball = Instantiate(ballPrefab).GetComponent<Ball>();
 			Balls.Add(ball);
 			ball.Radius = 0.5f;
@@ -73,7 +76,7 @@ namespace Game {
 					p1 = p1Obj.AddComponent<RealPlayer>();
 					p2 = p2Obj.AddComponent<AIPlayer>();
 					((RealPlayer) p1).isThisClient = true;
-					((AIPlayer)p2).Difficulty = Settings.AIDifficulty;
+					((AIPlayer) p2).Difficulty = Settings.AIDifficulty;
 					break;
 				default:
 					throw new ArgumentOutOfRangeException();