Display the tech icons and names in the science advisor screen

#392

C7/UIElements/Advisors/ScienceAdvisor.cs

@@ -49,12 +49,6 @@ private void CreateUI() {
 		AddChild(GoBackButton);
 		GoBackButton.Pressed += ReturnToMenu;
 
-		// TODO: Figure out how to pick which of the different sized tech boxes
-		// we should use for a given tech.
-		//
-		// NOTE: this pcx has 4 columns (discovered, planned, possible,
-		// not yet researchable), and 16 rows, 4 per era, with different sizes.
-		ImageTexture techBox = Util.LoadTextureFromPCX("Art/Advisors/techboxes.pcx", 1, 1, 180, 80);
 		using (UIGameDataAccess gameDataAccess = new()) {
 			List<Tech> techs = gameDataAccess.gameData.techs;
 
@@ -64,10 +58,7 @@ private void CreateUI() {
 					continue;
 				}
 
-				// TODO: draw the icon, name, etc. Consider sticking that in
-				// its own class.
-				TextureButton techButton = new();
-				techButton.TextureNormal = techBox;
+				TechBox techButton = new(tech);
 				techButton.SetPosition(new Vector2(tech.X, tech.Y));
 				AddChild(techButton);
 			}

C7/UIElements/Advisors/TechBox.cs

@@ -0,0 +1,36 @@
+
+using C7GameData;
+using Godot;
+
+public partial class TechBox : TextureButton {
+	private Tech tech;
+
+	public TechBox(Tech tech) {
+		this.tech = tech;
+	}
+
+	public override void _Ready() {
+		// TODO: Figure out how to pick which of the different sized tech boxes
+		// we should use for a given tech.
+		//
+		// NOTE: this pcx has 4 columns (discovered, planned, possible,
+		// not yet researchable), and 16 rows, 4 per era, with different sizes.
+		ImageTexture techBox = Util.LoadTextureFromPCX("Art/Advisors/techboxes.pcx", 1, 1, 180, 80);
+		TextureNormal = techBox;
+
+		ImageTexture iconTexture = Util.LoadTextureFromPCX(tech.SmallIconPath);
+		TextureRect icon = new() {
+			Texture = iconTexture
+		};
+		icon.SetPosition(new Vector2(12, 32));
+		AddChild(icon);
+
+		// TODO: Have the name trail off if it is too large for the box.
+		Label techName = new() {
+			Text = tech.Name,
+			OffsetLeft = 12,
+			OffsetTop = 12
+		};
+		AddChild(techName);
+	}
+}