add forcefield node

.luacheckrc

@@ -21,6 +21,6 @@ read_globals = {
 	"screwdriver",
 	"minetest",
 	"mesecon",
-	"unifieddyes",
-	"letters"
+	"unifieddyes"
+
 }

init.lua

@@ -32,8 +32,3 @@ dofile(MP.."/models.lua")
 dofile(MP.."/octagon_panes.lua")
 dofile(MP.."/forcefield.lua")
 dofile(MP.."/crafts.lua")
-
-if minetest.get_modpath("letters") then
-	-- register letter nodes
-	dofile(MP.."/letters.lua")
-end

letters.lua

@@ -1,5 +0,0 @@
-letters.register_letters("scifi_nodes", "black", "scifi_nodes:black", "Black wall", "scifi_nodes_black.png")
-letters.register_letters("scifi_nodes", "white2", "scifi_nodes:white2", "Plastic", "scifi_nodes_white2.png")
-letters.register_letters("scifi_nodes", "purple", "scifi_nodes:purple", "Purple node", "scifi_nodes_purple.png")
-letters.register_letters("scifi_nodes", "bluemetal", "scifi_nodes:bluemetal", "Blue metal", "scifi_nodes_bluemetal.png")
-letters.register_letters("scifi_nodes", "greenmetal", "scifi_nodes:greenmetal", "Green metal", "scifi_nodes_greenmetal.png")

mod.conf

@@ -11,6 +11,5 @@ mesecons_torch,
 mesecons_receiver,
 basic_materials,
 dye,
-unifieddyes,
-letters
+unifieddyes
 """