Created basic camera class.

LunaLightGame.cs

@@ -5,6 +5,7 @@ using Microsoft.Xna.Framework.Audio;
 using Microsoft.Xna.Framework.Media;
 using System;
 using System.Collections.Generic;
+using System.Runtime.CompilerServices;
 
 namespace LunaLightXMG
 {
@@ -16,13 +17,12 @@ namespace LunaLightXMG
         private List<Enemy> enemies;
         private int numOfEnemies;
         private GraphicsDeviceManager graphics;
+        private Camera2D camera2D;
         private SpriteBatch spriteBatch;
 
         // Native retro scale
         private int retroWidth = 320;
         private int retroHeight = 180;
-        // private int retroWidth = 480;
-        // private int retroHeight = 270;
         
         // Test Render Target
         private RenderTarget2D renderTarget;
@@ -47,7 +47,7 @@ namespace LunaLightXMG
 
         // Utility
         private static Random random; 
-
+        
         public LunaLightGame()
         {
             graphics = new GraphicsDeviceManager(this);
@@ -70,26 +70,58 @@ namespace LunaLightXMG
             numOfPlatforms = 4;
             numOfEnemies = 10;
         }
-
+        
         protected override void Initialize()
         {
             // Set initial window size
             graphics.PreferredBackBufferWidth = 1920;
             graphics.PreferredBackBufferHeight = 1080;
             graphics.ApplyChanges();
-
+            
             playerInput.HasControl = true; // May need to find a new home for this
-
+            
             base.Initialize();
+            
+            // Initialize camera
+            camera2D = new Camera2D(retroWidth, retroHeight);
+            // camera test - set level bounds
+            camera2D.SetLevelBounds(new Rectangle(0,0,480,270)); // default 320x180
+            
             CalculateRenderDestination();
             // Play music
             // PlayBackgroundMusic(sinkBeats);
-
+            
             // Generate random platforms - test this idea out...
             platforms = PlatformGenerator.CreatePlatforms(numOfPlatforms);
         }
-
-     
+        
+        // Testing camera ------------------------
+        private void TestCameraWhilePlaying()
+        {
+            KeyboardState keyboardState = Keyboard.GetState();
+            var KeyI = keyboardState.IsKeyDown(Keys.I) ? true : false;
+            var KeyO = keyboardState.IsKeyDown(Keys.O) ? true : false;
+            var KeyK = keyboardState.IsKeyDown(Keys.K) ? true : false;
+            var KeyL = keyboardState.IsKeyDown(Keys.L) ? true : false;
+            
+            if (KeyI)
+            {
+                camera2D.Zoom += 1f;
+            }
+            if (KeyO)
+            {
+                camera2D.Zoom -= 1f;
+            }
+            if (KeyK)
+            {
+                camera2D.Rotation -= 0.01f;
+            }
+            if (KeyL)
+            {
+                camera2D.Rotation += 0.01f;
+            }
+        }
+        // ---------------------------------------
         protected override void LoadContent()
         {
             spriteBatch = new SpriteBatch(GraphicsDevice);
@@ -129,23 +161,32 @@ namespace LunaLightXMG
             foreach (var enemy in enemies) {
                 enemy.Update(gameTime, player, platforms);
             }
-
+            
+            // Update camera position
+            camera2D.Follow(player.position);
+            // camera testing
+            TestCameraWhilePlaying();
+            
             base.Update(gameTime);
         }
 
         protected override void Draw(GameTime gameTime)
         {
             GraphicsDevice.Clear(Color.CornflowerBlue);
-
+            
             // Test Render Target - Draw sprites to the render target
             GraphicsDevice.SetRenderTarget(renderTarget);
 
-            // Test Sprite
-            spriteBatch.Begin(samplerState: SamplerState.PointClamp);
+            // Add camera to draw batch
+            spriteBatch.Begin(
+                transformMatrix: camera2D.GetViewMatrix(),
+                samplerState: SamplerState.PointClamp
+            );
+
             // Debug Grid
             // spriteBatch.Draw(debugGrid, new Vector2(0, 0), Color.Blue);
             // spriteBatch.Draw(sinkArea, new Vector2(0, 0), Color.White);
-
+            
             // Test draw tiles
             foreach (var platform in platforms)
             {
@@ -242,7 +283,10 @@ namespace LunaLightXMG
             spriteBatch.DrawString(debugFont, $"Grounded: {player.grounded}", new Vector2(10, 30), Color.White);
             spriteBatch.DrawString(debugFont, $"Walled: {player.walled}", new Vector2(10, 50), Color.White);
             spriteBatch.DrawString(debugFont, $"Position: {player.position}", new Vector2(10, 70), Color.White);
-
+            spriteBatch.DrawString(debugFont, $"Camera Position: {camera2D.Position}", new Vector2(10, 90), Color.White);
+            spriteBatch.DrawString(debugFont, $"Camera Zoom: {camera2D.Zoom}", new Vector2(10, 110), Color.White);
+            spriteBatch.DrawString(debugFont, $"Camera Rotation: {camera2D.Rotation}", new Vector2(10, 130), Color.White);
+            
             spriteBatch.End();
         }