MeshBatch now renders with or without textures.

General structure clean up as well.

src/SlatedGameToolkit.Tools/Utilities/Playground/MainState.cs

@@ -2,6 +2,7 @@ using System;
 using System.Drawing;
 using System.Numerics;
 using SDL2;
+using SlatedGameToolkit.Framework;
 using SlatedGameToolkit.Framework.Graphics.Render;
 using SlatedGameToolkit.Framework.Graphics.Render.Programs;
 using SlatedGameToolkit.Framework.Graphics.Textures;
@@ -19,8 +20,8 @@ namespace SlatedGameToolkit.Tools.Utilities.Playground
         private WindowContext window;
         private Camera2D camera;
         private MeshBatch renderer;
-        private Texture texture;
-        private Sprite2D sprite;
+        private Texture logoTexture, fillerTexture;
+        private RectangleMesh logo, textureTester, untextured;
 
         public WindowContext CurrentWindow { get { return window;}}
 
@@ -36,7 +37,8 @@ namespace SlatedGameToolkit.Tools.Utilities.Playground
 
         public void Deinitialize()
         {
-            texture.Dispose();
+            logoTexture.Dispose();
+            fillerTexture.Dispose();
             renderer.Dispose();
             window.Dispose();
         }
@@ -51,16 +53,34 @@ namespace SlatedGameToolkit.Tools.Utilities.Playground
             window = new WindowContext("SlatedGameToolkit Playground");
             camera = new Camera2D(2, 2);
             renderer = new MeshBatch(camera);
-            texture = CommonLoaders.LoadTexture("Resources/Playground/yhdnbgnc.png", null);
-            sprite = new Sprite2D(texture, Color.White);
-            sprite.X = -0.5f;
-            sprite.Y = -0.5f;
+
+            logoTexture = CommonLoaders.LoadTexture("Resources/Playground/yhdnbgnc.png", null);
+            logo = new RectangleMesh(logoTexture, Color.White);
+            logo.Width = 0.5f;
+            logo.Height = 0.5f;
+            logo.X = -0.25f;
+            logo.Y = -0.25f;
+
+
+            fillerTexture = CommonLoaders.LoadTexture("Resources/Playground/filler.png", null);
+            textureTester = new RectangleMesh(fillerTexture, Color.White);
+            textureTester.Width = 0.15f;
+            textureTester.Height = 0.15f;
+            textureTester.X = 0.25f;
+
+            untextured = new RectangleMesh(null, Color.Red);
+            untextured.Width = 0.15f;
+            untextured.Height = 0.1f;
+            untextured.X = 0.25f;
+            untextured.Y = - 0.15f;
         }
 
         public void Render(double delta)
         {
             renderer.Begin(Matrix4x4.Identity);
-            renderer.Draw(sprite);
+            renderer.Draw(logo);
+            renderer.Draw(textureTester);
+            renderer.Draw(untextured);
             renderer.End();
         }