add mapcolors to nodes. The difficult decision was made to make meta-markers invisible on map, to maximize readability of actual stone positions at low zoom levels

stones.lua

@@ -55,9 +55,9 @@ local function reg(name, basename, basedef)
         selection_box = stone_selection_box,
         collision_box = stone_selection_box,
 
-        tiles = {
-            basedef.tiles[1]
-        },
+        tiles = {basedef.tiles[1]},
+        sounds = basedef.sounds,
+        mapcolor = basedef.mapcolor,
 
         paramtype = "light",
 
@@ -73,8 +73,6 @@ local function reg(name, basename, basedef)
 
         go_team = name,
 
-        sounds = basedef.sounds,
-
         on_construct = lc_liberties.handle_placement,
 
         on_dig = lc_liberties.handle_dig,
@@ -105,9 +103,9 @@ local function reg(name, basename, basedef)
 
         node_placement_prediction = "",
 
-        tiles = {
-            basedef.tiles[1]
-        },
+        tiles = {basedef.tiles[1]},
+        sounds = basedef.sounds,
+        mapcolor = {a = 0},
 
         paramtype = "light",
 
@@ -122,8 +120,6 @@ local function reg(name, basename, basedef)
 
         go_team = name,
 
-        sounds = basedef.sounds,
-
         on_place = lc_liberties.handle_territory_fill,
 
         on_dig = lc_liberties.handle_dig,
@@ -152,6 +148,8 @@ local function reg(name, basename, basedef)
         collision_box = ko_selection_box,
 
         tiles = {basedef.tiles[1]},
+        sounds = basedef.sounds,
+        mapcolor = {a = 0},
 
         paramtype = "light",
         sunlight_propagates = true,
@@ -169,8 +167,6 @@ local function reg(name, basename, basedef)
 
         go_team = name,
 
-        sounds = basedef.sounds,
-
         on_rightclick = lc_liberties.handle_click_ko,
     })