Added high score

Also made player always render on top of enemies

Assets/Materials/BlackMat.mat

@@ -7,7 +7,7 @@ Material:
   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
-  m_Name: RedMat
+  m_Name: BlackMat
   m_Shader: {fileID: 10770, guid: 0000000000000000f000000000000000, type: 0}
   m_Parent: {fileID: 0}
   m_ModifiedSerializedProperties: 0

Assets/Prefabs/Enemy.prefab

@@ -80,7 +80,7 @@ Transform:
   m_GameObject: {fileID: 4804673878835712602}
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalPosition: {x: 0, y: 0, z: -1}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []

Assets/Scripts/EnemyController.cs

@@ -14,7 +14,7 @@ public class EnemyController : OrbitalPositionBehaviour
     public override void OnReachCentre()
     {
         if (GlobalOrbitalPositionManager.IsSimulationRunning)
-            PlayerController.PlayerScore++;
+            PlayerController.s_PlayerScore++;
         
         Destroy(gameObject);
     }

Assets/Scripts/OrbitalPosition.cs

@@ -155,7 +155,7 @@ public class GlobalOrbitalPositionManager : MonoBehaviour
             if (ring.transform.localScale.x < 0.5f)
             {
                 if (IsSimulationRunning)
-                    PlayerController.PlayerScore++;
+                    PlayerController.s_PlayerScore++;
                 
                 toRemove.Add(ring);
             }

Assets/Scripts/PlayerController.cs

@@ -1,9 +1,11 @@
+using System;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class PlayerController : OrbitalPositionBehaviour
 {
-    public static int PlayerScore = 0;
+    public static int s_PlayerScore;
+    private static int s_HighScore = 20;
     
     private static PlayerController s_Instance;
     public static bool IsPlayerAttached => s_Instance.m_OrbitalPosition.m_IsAttachedToRings;
@@ -28,7 +30,9 @@ public class PlayerController : OrbitalPositionBehaviour
 
     public void Update()
     {
-        m_ScoreText.text = PlayerScore.ToString();
+        m_ScoreText.text = s_PlayerScore.ToString();
+        if (s_PlayerScore > s_HighScore)
+            m_ScoreText.color = Color.yellow;
         
         if (GlobalInput.IsScreenClicked() && GlobalOrbitalPositionManager.AllowPlayerInput)
         {
@@ -60,7 +64,8 @@ public class PlayerController : OrbitalPositionBehaviour
         
         m_Renderer.material.color = Color.green;
         
-        PlayerScore = 0;
+        s_HighScore = Math.Max(s_HighScore, s_PlayerScore);
+        s_PlayerScore = 0;
     }
 
     public override void OnReachCentre()