From b80c4fae413aca443d380df4bf056a7efad70a0a Mon Sep 17 00:00:00 2001
From: "J. M. Ellis" <75238062+Othelas@users.noreply.github.com>
Date: Tue, 14 May 2024 22:13:06 -0700
Subject: [PATCH] Added render targeting for retro scale. (#1)

---
 Game1.cs | 44 +++++++++++++++++++++++++++++++++++++-------
 1 file changed, 37 insertions(+), 7 deletions(-)

diff --git a/Game1.cs b/Game1.cs
index 7e0dbf6..55ade89 100644
--- a/Game1.cs
+++ b/Game1.cs
@@ -6,32 +6,50 @@ namespace LunaLightXMG
 {
     public class Game1 : Game
     {
-        private GraphicsDeviceManager _graphics;
-        private SpriteBatch _spriteBatch;
+        private GraphicsDeviceManager graphics;
+        private SpriteBatch spriteBatch;
+
+        // Test Render Target
+        private RenderTarget2D renderTarget;
+        private Rectangle renderDestination;
+
+        // Native retro scale
+        private int retroWidth = 320;
+        private int retroHeight = 180;
 
         public Game1()
         {
-            _graphics = new GraphicsDeviceManager(this);
+            graphics = new GraphicsDeviceManager(this);
             Content.RootDirectory = "Content";
             IsMouseVisible = true;
+
+            //Window.ClientSizeChanged += OnClientSizeChanged; // Jensen can implement
+            Window.AllowUserResizing = true;
+            IsMouseVisible = true;
         }
 
         protected override void Initialize()
         {
-            // TODO: Add your initialization logic here
+            // Set initial window size
+            graphics.PreferredBackBufferWidth = 1920;
+            graphics.PreferredBackBufferHeight = 1080;
+            graphics.ApplyChanges();
 
             base.Initialize();
+            //CalculateRenderDestination(); // Jensen can implement 
         }
 
         protected override void LoadContent()
         {
-            _spriteBatch = new SpriteBatch(GraphicsDevice);
+            spriteBatch = new SpriteBatch(GraphicsDevice);
 
-            // TODO: use this.Content to load your game content here
+            // Test Render Target
+            renderTarget = new RenderTarget2D(GraphicsDevice, retroWidth, retroHeight);
         }
 
         protected override void Update(GameTime gameTime)
         {
+            // Temporary quit game - eventually handle in a pause menu class
             if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
                 Exit();
 
@@ -44,7 +62,19 @@ namespace LunaLightXMG
         {
             GraphicsDevice.Clear(Color.CornflowerBlue);
 
-            // TODO: Add your drawing code here
+            // Test Render Target - Draw sprites to the render target
+            GraphicsDevice.SetRenderTarget(renderTarget);
+
+            // Test Sprite
+            spriteBatch.Begin(samplerState: SamplerState.PointClamp);
+            // Draw sprites here
+            spriteBatch.End();
+
+            // Test Render Target - Draw render target to the screen
+            GraphicsDevice.SetRenderTarget(null);
+            spriteBatch.Begin(samplerState: SamplerState.PointClamp);
+            spriteBatch.Draw(renderTarget, renderDestination, Color.White);
+            spriteBatch.End();
 
             base.Draw(gameTime);
         }