world limits

init.lua

@@ -8,6 +8,7 @@ minetest.override_item("default:ice", {
 dofile(MP.."/disable_mobs_spawning.lua")
 dofile(MP.."/center.lua")
 dofile(MP.."/privs.lua")
+dofile(MP.."/teleport_back.lua")
 
 
 

teleport_back.lua

@@ -0,0 +1,24 @@
+-- static spawn point
+local spawn_pos = { x=0, y=0, z=0 }
+
+-- check every few seconds if the player belongs to the current position
+-- if not, teleport them back to spawn
+local timer = 0
+minetest.register_globalstep(function(dtime)
+	timer = timer + dtime
+
+	-- every 10 seconds
+	if timer < 10 then return end
+	timer = 0
+
+	for _,player in ipairs(minetest.get_connected_players()) do
+
+		local pos = player:get_pos()
+
+		-- check if player can travel there
+		if pos.y < -1000 or pos.y > 1000 then
+			player:set_pos(spawn_pos)
+			minetest.chat_send_player(player:get_player_name(), "Please adhere to the world-limits: 1000 > y > -1000")
+		end
+	end
+end)