Display invisible overlays on main map in map editor

changelog

@@ -54,6 +54,7 @@ Version 1.11.0-svn:
    * Added a Reset All button to Hotkey Settings dialog in preferences
      (feature/bug #3797)
    * Fixed excessive idle CPU usage in story screens without story text
+   * Map editor now displays invisible overlay terrains on main map
  * Whiteboard
    * Fixed bug #19369: Using planning mode can cause losing ability to move my units
    * Fixed bug #19408: Crash shortly after executing invalid multi-turn move

data/core/terrain-graphics.cfg

@@ -45,6 +45,11 @@
     [/terrain_graphics]
     {TRANSITION_COMPLETE_L (!,*^_fme) (*^_fme) 1000 off-map/border}
 
+# Editor overlays - for overlays that should only be visible in the editor
+{EDITOR_OVERLAY *^Xo  impassable-editor}
+{EDITOR_OVERLAY *^Vov village/village-overlay-editor}
+{EDITOR_OVERLAY *^Cov castle/castle-overlay-editor}
+{EDITOR_OVERLAY *^Kov castle/keep-overlay-editor}
 
 # TRACK LAYOUT MUST STAY ON TOP
 # they set flags that will be used by other macros later.

data/core/terrain-graphics/editor.cfg

@@ -0,0 +1,17 @@
+# Macros for terrains that appear differently (or only) in the editor
+
+#define EDITOR_OVERLAY TYPE IMAGE
+#ifdef EDITOR
+ [terrain_graphics]
+    [tile]
+        x,y=0,0
+        type={TYPE}
+
+        [image]
+            name={IMAGE}.png~O(0.5)
+            layer=1000
+        [/image]
+    [/tile]
+[/terrain_graphics]
+#endif
+#enddef

players_changelog

@@ -41,6 +41,7 @@ Version 1.11.0-svn:
    * Added tooltips to Load Game dialog (feature/bug #18249).
    * Added a Reset All button to Hotkey Settings dialog in preferences
      (feature/bug #3797)
+   * Map editor now displays invisible overlay terrains on main map.
 
  * Whiteboard
    * Fixed bug #19369 : Using planning mode can cause losing ability to move my units