From f0630d167940372a5030cdd24b4e8daa54c1ea6a Mon Sep 17 00:00:00 2001
From: Colin McMillen <colin@semicolin.games>
Date: Thu, 9 Jan 2020 16:20:46 -0500
Subject: [PATCH] go back to just a single RenderTarget

GitOrigin-RevId: 0b8fc3090098f84047a85804bb5eb2a15249aadd
---
 Shared/SneakGame.cs | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/Shared/SneakGame.cs b/Shared/SneakGame.cs
index f8c0f65..828e3db 100644
--- a/Shared/SneakGame.cs
+++ b/Shared/SneakGame.cs
@@ -8,12 +8,7 @@ using System.Collections.Generic;
 namespace SemiColinGames {
   public class SneakGame : Game {
     GraphicsDeviceManager graphics;
-
-    // TODO: use a History<RenderTarget2D> but implement functions that let us re-use the
-    // RenderTargets instead of re-creating them every frame?
-    const int numRenderTargets = 1;
-    RenderTarget2D[] renderTargets = new RenderTarget2D[numRenderTargets];
-    int renderTargetIdx = 0;
+    RenderTarget2D renderTarget;
 
     SpriteBatch spriteBatch;
     SpriteFont font;
@@ -45,11 +40,9 @@ namespace SemiColinGames {
 
       Debug.Initialize(GraphicsDevice);
 
-      for (int i = 0; i < renderTargets.Length; i++) {
-        renderTargets[i] = new RenderTarget2D(
-          GraphicsDevice, camera.Width, camera.Height, false /* mipmap */,
-          GraphicsDevice.PresentationParameters.BackBufferFormat, DepthFormat.Depth24);
-      }
+      renderTarget = new RenderTarget2D(
+        GraphicsDevice, camera.Width, camera.Height, false /* mipmap */,
+        GraphicsDevice.PresentationParameters.BackBufferFormat, DepthFormat.Depth24);
 
       base.Initialize();
     }
@@ -109,8 +102,6 @@ namespace SemiColinGames {
       fpsCounter.Update();
 
       // Draw scene to RenderTarget.
-      RenderTarget2D renderTarget = renderTargets[renderTargetIdx];
-      renderTargetIdx = (renderTargetIdx + 1) % renderTargets.Length;
       GraphicsDevice.SetRenderTarget(renderTarget);
       GraphicsDevice.Clear(Color.CornflowerBlue);
       spriteBatch.Begin(SpriteSortMode.Deferred, null, SamplerState.LinearWrap, null, null);