Force teleport to update formspec by punching

README.txt

@@ -1,7 +1,7 @@
 teleports
 =========
 
-Mod "teleports" for Minetest 0.4.17 or later.
+Mod "teleports" for Minetest 0.4.17 or later. Updated version of lag01's Teleports mod!
 
 Allows players to create teleports with crafting (8 diamonds + 1 obsidian).
 
@@ -17,6 +17,14 @@ the destination exactly, but one block 'besides' it.
 
 Beware: If you dig a teleport, you only get 1 diamond back, so think before placing!
 
+For server operators
+--------------------
+
+This mod is compatible with lag01's original teleports mod. The formspecs have changed tho
+because the original mod's formspec were buggy.
+
+To force a teleport to update its formspec, just punch it!
+
 Credits:
 ========
 This mod code is licensed under the GNU LGPLv2

init.lua

@@ -258,6 +258,11 @@ minetest.register_node("teleports:teleport", {
 			teleports:save()
 		end
 	end,
+	on_punch = function(pos, node, puncher, pointed_thing)
+		-- Force formspec update on punch
+		teleports.set_formspec(pos)
+		minetest.log("info", "[teleports] Teleport formspec force-updated: "..minetest.pos_to_string(pos))
+	end,
 	on_destruct = function(pos)
 		-- Update list of teleports on destruction
 		local near_teleports = teleports:find_nearby(pos, TELEPORT_SHOW_MAX)
@@ -326,4 +331,3 @@ minetest.register_craft({
 		{"default:diamond","default:diamond","default:diamond"},
 	}
 })
-