Change the code a bit

moremesecons_playerkiller/init.lua

@@ -6,8 +6,7 @@ local kill_nearest_player = function(pos)
 	local min_distance = MAX_DISTANCE
 	for index, player in pairs(minetest.get_connected_players()) do
 		local distance = vector.distance(pos, player:getpos())
-		if distance < MAX_DISTANCE
-		and distance < min_distance then
+		if distance < min_distance then
 			min_distance = distance
 			nearest = player
 		end
@@ -24,6 +23,11 @@ local kill_nearest_player = function(pos)
 		return
 	end
 	
+	if owner == nearest:get_player_name() then
+		-- don't kill the owner !
+		return
+	end
+
 	-- And kill him
 	nearest:set_hp(0)
 end

moremesecons_teleporter/init.lua

@@ -11,11 +11,12 @@ local register = function(pos)
 end
 
 local teleport_nearest = function(pos)
-	local MAX_DISTANCE = 50
+	local MAX_TELEPORTATION_DISTANCE = 50
+	local MAX_PLAYER_DISTANCE = 25
 	
 	-- Search the nearest player
 	local nearest = nil
-	local min_distance = math.huge
+	local min_distance = MAX_PLAYER_DISTANCE
 	local players = minetest.get_connected_players()
 	for index, player in pairs(players) do
 		local distance = vector.distance(pos, player:getpos())
@@ -25,6 +26,11 @@ local teleport_nearest = function(pos)
 		end
 	end
 	
+	if not nearest then
+		-- If there is no nearest player (maybe too far...)
+		return
+	end
+	
 	-- Search other teleporter and teleport
 	if not minetest.registered_nodes["moremesecons_teleporter:teleporter"] then return end
 	
@@ -41,7 +47,10 @@ local teleport_nearest = function(pos)
 		end
 	end
 	if newpos.x then
-		if vector.distance(newpos, nearest:getpos()) > MAX_DISTANCE then newpos = {} end -- If the is another teleporter BUT too far, delete newpos.
+		-- If there is another teleporter BUT too far, delete newpos.
+		if vector.distance(newpos, pos) > MAX_TELEPORTATION_DISTANCE then
+			newpos = {}
+		end
 	end
 	if not newpos.x then
 		newpos = {x=pos.x, y=pos.y+1, z=pos.z} -- If newpos doesn't exist, teleport on the actual teleporter.