Make mana cost configurable

README.md

@@ -27,3 +27,4 @@ configuration is recommended. But you can change it anyways, if you wish. Config
 
 * `teletool_avoid_collisions`: Boolean. If `true`, it is not possible to teleport somewhere where you would collide with a node. Default: `true`.
 * `teletool_adjust_head`: Boolean. If `true`, you will be teleported one node lower if you clicked on the lower side of a node. Otherwise, your “head” will be initially “stuck” in the node. Default: `true`.
+* `teletool_cost_mana`: Number. Cost of mana for the magic point teleporter. Default: `20`.

init.lua

@@ -11,6 +11,7 @@ teletool = {}
 teletool.settings = {}
 teletool.settings.avoid_collisions = true
 teletool.settings.adjust_head = true
+teletool.settings.cost_mana = 20
 local avoid_collisions = minetest.setting_getbool("teletool_avoid_collisions")
 if avoid_collisions ~= nil then
 	teletool.settings.avoid_collision = avoid_collisions
@@ -19,6 +20,10 @@ local adjust_head = minetest.setting_getbool("teletool_adjust_head")
 if adjust_head ~= nil then
 	teletool.settings.adjust_head = adjust_head
 end
+local cost_mana = tonumber(minetest.setting_get("teletool_cost_mana"))
+if cost_mana ~= nil then
+	teletool.settings.cost_mana = cost_mana
+end
 
 
 function teletool.teleport(player, pointed_thing)
@@ -150,7 +155,7 @@ if(minetest.get_modpath("mana") ~= nil) then
 		on_use = function(itemstack, user, pointed_thing)
 			local failure = false
 			if(pointed_thing.type == "node") then
-				if(mana.subtract(user:get_player_name(), 20)) then
+				if(mana.subtract(user:get_player_name(), teletool.settings.cost_mana)) then
 					failure = not teletool.teleport(user, pointed_thing)
 				else
 					failure = true