Add initial game code

scripts/GameObjects/Universe.cs

@@ -0,0 +1,39 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+public partial class Universe
+{
+    public decimal CurrentTick { get; private set; }
+    public List<GameObject> GameObjects { get; private set; }
+
+    public Ship PlayerShip { get; private set; }
+
+    public Universe()
+    {
+        this.GameObjects = new List<GameObject>();
+    }
+
+    public decimal SimulateTick()
+    {
+        this.CurrentTick++;
+
+        List<Task> galaxySimulationTasks = new List<Task>();
+
+        foreach (GameObject gameObject in this.GameObjects)
+        {
+            if (gameObject.GetType().Name == "Galaxy")
+            {
+                Task galaxySimulation = new Task(() => gameObject.Simulate());
+                galaxySimulation.Start();
+                galaxySimulationTasks.Add(galaxySimulation);
+
+                continue;
+            }
+            gameObject.Simulate();
+        }
+
+        Task.WaitAll(galaxySimulationTasks.ToArray());
+
+        return this.CurrentTick;
+    }
+}