Make track protection radius configurable

advtrains/protection.lua

@@ -28,6 +28,14 @@ minetest.register_privilege("railway_operator", {
 -- there is a configuration option "allow_build_only_owner". If this is active, a player having track_builder can only build rails and operate signals/turnouts in an area explicitly belonging to him
 -- (checked using a dummy player called "*dummy*" (which is not an allowed player name))
 
+
+-- Protection ranges
+local npr_r = tonumber(minetest.settings:get("advtrains_prot_range_side")) or 1
+local npr_vr = tonumber(minetest.settings:get("advtrains_prot_range_up")) or 3
+local npr_vrd = tonumber(minetest.settings:get("advtrains_prot_range_down")) or 1
+
+local boo = minetest.settings:get_bool("advtrains_allow_build_to_owner")
+
 --[[
 Protection/privilege concept:
 Tracks:
@@ -59,8 +67,6 @@ Wagon coupling:
 
 ]]--
 
-local boo = minetest.settings:get_bool("advtrains_allow_build_to_owner")
-
 -- temporarily prevent scanning for neighboring rail nodes recursively
 local nocheck
 
@@ -92,10 +98,9 @@ minetest.is_protected = function(pos, pname)
 		return not advtrains.check_track_protection(pos, pname, nil, false)
 	end
 	
-	local r, vr = 1, 3
 	local nodes = minetest.find_nodes_in_area(
-		{x = pos.x - r, y = pos.y - vr, z = pos.z - r},
-		{x = pos.x + r, y = pos.y + 1, z = pos.z + r},
+		{x = pos.x - npr_r, y = pos.y - npr_vr, z = pos.z - npr_r},
+		{x = pos.x + npr_r, y = pos.y + npr_vrd, z = pos.z + npr_r},
 		{"group:advtrains_track"})
 	for _,npos in ipairs(nodes) do
 		if not advtrains.check_track_protection(npos, pname, pos) then

advtrains/settingtypes.txt

@@ -1,16 +1,35 @@
 #    Display train and wagon ID in the infotext of trains.
 #    Useful when working with LuaATC or while debugging.
 advtrains_show_ids (Show ID's in infotext) bool false
+
 #    Enable the debug ring buffer
 #    This has no effect on the user experience, except decreased performance. Debug outputs are saved in a ring buffer to be printed when an error occurs.
 #    You probably want to leave this setting set to false.
 advtrains_enable_debugging (Enable debugging) bool false
+
 #    Enable the logging of certain events related to advtrains
 #    Logs are saved in the world directory as advtrains.log
 #    This setting is useful for multiplayer servers
 advtrains_enable_logging (Enable logging) bool false
+
 #    If this is active, any player can do the following things inside (and only inside) an area that is explicitly protected by him
 #    (checked using a dummy player called "*dummy*" (which is not an allowed player name)):
 #    - build tracks and near tracks without the track_builder privilege
 #    - operate turnouts and signals without the railway_operator privilege
 advtrains_allow_build_to_owner (Allow building/operating to privilegeless area owner) bool false
+
+#    Track protection range (horizontal)
+#    Players without the 'track_builder' privilege can not build within a box around any tracks determined by these range settings
+#    This setting is to be read as "r-0.5", so a value of 1 means a diameter of 3, a value of 2 a diameter of 5 a.s.o.
+#    The spanned area is a square. Fractional values are not supported.
+advtrains_prot_range_side (Track protection range [horizontal]) int 1 0 10
+
+#    Track protection range (up)
+#    Players without the 'track_builder' privilege can not build within a box around any tracks determined by these range settings
+#    This setting determines the upper y bound of the box, a value of 3 means that the rail and 3 nodes above it are protected
+advtrains_prot_range_up (Track protection range [up]) int 3 0 10
+
+#    Track protection range (down)
+#    Players without the 'track_builder' privilege can not build within a box around any tracks determined by these range settings
+#    This setting determines the lower y bound of the box, a value of 1 means that the rail and 1 node below it are protected
+advtrains_prot_range_down (Track protection range [down]) int 1 0 10