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GlitchyEditor/src/EditorIcons.bf

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+using System;
+using GlitchyEngine.Renderer;
+using GlitchyEngine.Math;
+using GlitchyEngine;
+
+namespace GlitchyEditor
+{
+	class EditorIcons : RefCounted
+	{
+		Texture2D _texture ~ _.ReleaseRef();
+
+		public SubTexture2D DirectionalLight ~ _.ReleaseRef();
+		public SubTexture2D Camera ~ _.ReleaseRef();
+		public SubTexture2D Folder ~ _.ReleaseRef();
+		public SubTexture2D File ~ _.ReleaseRef();
+
+		public SamplerState SamplerState
+		{
+			get => _texture.SamplerState;
+			set => _texture.SamplerState = value;
+		}
+
+		public this(String texturePath, Vector2 iconSize)
+		{
+			_texture = new Texture2D(texturePath);
+			
+			Vector2 pen = .();
+
+			DirectionalLight = GetNextGridTexture(ref pen, iconSize);
+			Camera = GetNextGridTexture(ref pen, iconSize);
+			Folder = GetNextGridTexture(ref pen, iconSize);
+			File = GetNextGridTexture(ref pen, iconSize);
+		}
+
+		private SubTexture2D GetNextGridTexture(ref Vector2 pen, Vector2 iconSize)
+		{
+			SubTexture2D subTexture = .CreateFromGrid(_texture, pen, iconSize);
+
+			pen.X += 1.0f;
+
+			if (pen.X >= (_texture.Width / iconSize.X))
+			{
+				pen.X = 0;
+				pen.Y += 1.0f;
+			}
+
+			Log.EngineLogger.AssertDebug(pen.Y <=(_texture.Height / iconSize.Y));
+
+			return subTexture;
+		}
+	}
+}