Scripting: FindEntityWithName and get script instance

+ Some C# UUID stuff
+ Added some Mono functions
+ ScriptEngine:
  + ID -> ScriptInstance map in ScriptEngine
  + GetManagedInstance

+ Fixed Scene not visible after loading a new scene
  + Renamed OnViewportResize to SetViewportSize for Scene and SceneRenderer

GlitchyEditor/SandboxProject/Assets/Scripts/Camera.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using GlitchyEngine;
+using GlitchyEngine.Math;
+
+namespace Sandbox;
+public class Camera : Entity
+{
+    public float DistanceFromPlayer = 5.0f;
+
+    public float DontFollowRadius = 3.0f;
+
+    void OnUpdate(float deltaTime)
+    {
+        Entity player = FindEntityWithName("Player");
+
+        if (player != null)
+        {
+            Vector2 playerPosition = new Vector2(player.Transform.Translation.X, player.Transform.Translation.Y);
+
+            Vector2 cameraPosition = new Vector2(Transform.Translation.X, Transform.Translation.Y);
+
+            Vector2 distanceVector = playerPosition - cameraPosition;
+
+            float distance = distanceVector.Length();
+
+            Vector2 neededMovement = Vector2.Zero;
+
+            if (distance > DontFollowRadius)
+            {
+                neededMovement = distanceVector - (distanceVector / distance) * DontFollowRadius;
+            }
+
+            Transform.Translation = new Vector3(cameraPosition + neededMovement, DistanceFromPlayer);
+
+            //Transform.Translation = new Vector3(player.Transform.Translation.X, player.Transform.Translation.Y, DistanceFromPlayer);
+        }
+        else
+        {
+            Log.Error("Player not found!");
+        }
+    }
+}