Add project files.

AlientAttack.MonoGame/GameLoops/GameLoopBase.cs

@@ -0,0 +1,31 @@
+using AlienAttack.MonoGame.View;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Content;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace AlienAttack.MonoGame.GameLoops;
+
+internal abstract class GameLoopBase(AlienAttackGame game) : IGameLoop
+{
+    protected readonly AlienAttackGame Game = game;
+    protected readonly ContentManager Content = game.Content;
+    protected readonly SpriteBatch SpriteBatch = game.SpriteBatch;
+    protected readonly ViewTransform ViewTransform = game.ViewTransform;
+
+    public void Draw()
+    {
+        SpriteBatch.Begin(transformMatrix: ViewTransform.ViewMatrix);
+
+        OnDraw();
+
+        SpriteBatch.End();
+    }
+
+    public void Update(GameTime gameTime)
+    {
+        OnUpdate(gameTime);
+    }
+
+    public abstract void OnDraw();
+    public abstract void OnUpdate(GameTime gameTime);
+}