Apllied shadows to resources' textures

C7/Game.cs

@@ -60,7 +60,7 @@ public class GotoInfo {
 	private Vector2 OldPosition;
 
 	Stopwatch loadTimer = new Stopwatch();
-	GlobalSingleton Global;
+	public GlobalSingleton Global { get; private set; }
 
 	[Export]
 	private PopupOverlay popupOverlay;

C7/Lua/texture_configs/civ3/resources.lua

@@ -25,6 +25,27 @@ function resources.large:map_object_to_sprite(resource)
   }
 end
 
+resources.shadows = {
+  extra_data = {
+    path = "Art/resources_shadows.pcx",
+  },
+}
+
+function resources.shadows:map_object_to_sprite(resource)
+  if resource:GetType().Name ~= "Resource" then
+    error "Expected a Resource object"
+  end
+
+  local icon = resource.Icon
+  local row = math.floor(icon / 6)
+  local col = icon % 6
+
+  return {
+    path = self.extra_data.path,
+    crop_region = { col * RESOURCE_SIZE,  row * RESOURCE_SIZE, RESOURCE_SIZE, RESOURCE_SIZE },
+  }
+end
+
 resources.small = {
   extra_data = {
     path = "Art/city screen/luxuryicons_small.pcx",

C7/Map/ResourceLayer.cs

@@ -19,8 +19,12 @@ public override void drawObject(LooseView looseView, GameData gameData, Tile til
 				return;
 			}
 
-			var texture = TextureLoader.Load("resources.large", resource, useCache: true);
+			if (!looseView.mapView.game.Global.ModernGraphicsActive) {
+				ImageTexture shadows = TextureLoader.Load("resources.shadows", resource, useCache: true);
+				looseView.DrawTexture(shadows, tileCenter - 0.5f * shadows.GetSize());
+			}
 
+			ImageTexture texture = TextureLoader.Load("resources.large", resource, useCache: true);
 			looseView.DrawTexture(texture, tileCenter - 0.5f * texture.GetSize());
 		}
 

C7/Textures/PCXToGodot.cs

@@ -215,7 +215,9 @@ private static int[] loadPalette(byte[,] palette, ColorOptions colorOptions) {
 
 		if (colorOptions.shadows) {
 			for (int i = 240; i < 256; i++) {
-				ColorData[i] = ((MAX_COLOR - i) * 16) << ALPHA_BITSHIFT;
+				if (!colorOptions.transparentColorIndexes.Contains(i)) {
+					ColorData[i] = ((MAX_COLOR - i) * 16) << ALPHA_BITSHIFT;
+				}
 			}
 		}