Patch for add def (#5)

* Add def for add more settings.

* Fix type for readme

* Typo fix

* Simplify function and call for table empty

* Typo Fix

* Minor fix Readme.md

* Refix Readme.md

Readme.md

@@ -4,22 +4,43 @@ The majority of this code was taken (and altered significantly) from Calinou's [
 
 The Letter Cutter textures use parts of the default wood and tree textures made by Blockmen and Cisoun respectively.
 
-####Allowing letters to be made from nodes:
+#### Allowing letters to be made from nodes:
 
 Use this code to allow blocks to have letters registered from them:
 ```lua
-letters.register_letters(modname, subname, from_node, description, tiles)
+letters.register_letters(modname, subname, from_node, description, tiles, def)
 ```
-Modname is the mod that the node belongs to.
-Subname is the actual name of the node.
-From_nobe is the node that the letters will be crafted from (Usually modname:subname).
-Description is the description of the node.
-Tiles defines the image that will be used with the node.
+- Modname is the mod that the node belongs to.
+- Subname is the actual name of the node.
+- From_node is the node that the letters will be crafted from (Usually modname:subname).
+- Description is the description of the node.
+- Tiles defines the image that will be used with the node.
+- Def (optional) may contain additional node definition parameters. Some might be overwritten to make the letters look and work as intended.
 
 For example, if I wanted to register marble, from the mod darkage, this is the code I would use:
 ```lua
 letters.register_letters("darkage", "marble", "darkage:marble", "Marble", "darkage_marble.png")
 ```
+Add letters with unifieddye.
+```lua
+letters.register_letters("darkage",
+	"marble",
+	"darkage:marble", 
+	"Marble", 
+	"darkage_marble.png",
+	{
+		paramtype2 = "colorwallmounted", 
+		palette = "unifieddyes_palette_colorwallmounted.png", 
+		groups = {
+			not_in_creative_inventory = 1,
+			not_in_craft_guide = 1, 
+			oddly_breakable_by_hand = 1, 
+			attached_node = 1, 
+			ud_param2_colorable = 1
+		}
+	}
+)
+```
 You will need to add letters as a dependency to your mod, or include the registrations is the code:
 ```lua
 if minetest.get_modpath("letters") then

init.lua

@@ -30,55 +30,50 @@ letters = {
 letter_cutter = {}
 letter_cutter.known_nodes = {}
 
-function letters.register_letters(modname, subname, from_node, description, tiles)
-	for _, row in ipairs(letters) do
-		local namel = subname.. "_letter_" ..row[1]
-		local nameu = subname.. "_letter_" ..row[2]
-		local descl = description.. " " ..row[3]
-		local descu = description.. " " ..row[4]
-		local tilesl = tiles.. "^letters_" ..row[1].. "_overlay.png^[makealpha:255,126,126"
-		local tilesu = tiles.. "^letters_" ..row[2].. "_overlay.png^[makealpha:255,126,126"
-		local groups = {not_in_creative_inventory=1, not_in_craft_guide=1, oddly_breakable_by_hand=1, attached_node=1}
-		minetest.register_node(":" ..modname..":"..namel, {
-			description = descl,
-			drawtype = "signlike",
-			tiles = {tilesl},
-			inventory_image = tilesl,
-			wield_image = tilesl,
-			paramtype = "light",
-			paramtype2 = "wallmounted",
-			sunlight_propagates = true,
-			is_ground_content = false,
-			walkable = false,
-			selection_box = {
-				type = "wallmounted",
-				--wall_top = <default>
-				--wall_bottom = <default>
-				--wall_side = <default>
-			},
-			groups = groups,
-			legacy_wallmounted = false,
-		})
-		minetest.register_node(":" ..modname..":"..nameu, {
-			description = descu,
-			drawtype = "signlike",
-			tiles = {tilesu},
-			inventory_image = tilesu,
-			wield_image = tilesu,
-			paramtype = "light",
-			paramtype2 = "wallmounted",
-			sunlight_propagates = true,
-			is_ground_content = false,
-			walkable = false,
-			selection_box = {
-				type = "wallmounted",
-				--wall_top = <default>
-				--wall_bottom = <default>
-				--wall_side = <default>
-			},
-			groups = groups,
-			legacy_wallmounted = false,
-		})
+function letters.register_letters(modname, subname, from_node, description, tiles, def)
+
+	def = def and table.copy(def) or {} 
+
+	--default node
+	def.drawtype = "signlike"
+	def.paramtype = "light"
+	def.paramtype2 = def.paramtype2 or "wallmounted"
+	def.sunlight_propagates = true
+	def.is_ground_content = false
+	def.walkable = false
+	def.selection_box = {
+		type = "wallmounted"
+		--wall_top = <default>
+		--wall_bottom = <default>
+		--wall_side = <default>
+	}
+	def.groups = def.groups or {
+		not_in_creative_inventory = 1,
+		not_in_craft_guide = 1,
+		oddly_breakable_by_hand = 1,
+		attached_node = 1
+	}
+	def.legacy_wallmounted = false
+	
+
+	for _, row in ipairs(letters) do	
+	
+		def = table.copy(def)
+		def.description = description.. " " ..row[3]
+		def.inventory_image = tiles.. "^letters_" ..row[1].. "_overlay.png^[makealpha:255,126,126"
+		def.wield_image = def.inventory_image
+		def.tiles = {def.inventory_image}
+		
+		minetest.register_node(":" ..modname..":"..subname.. "_letter_" ..row[1],def)
+		
+		def = table.copy(def)
+		def.description = description.. " " ..row[4]
+		def.inventory_image = tiles.. "^letters_" ..row[2].. "_overlay.png^[makealpha:255,126,126"
+		def.wield_image = def.inventory_image
+		def.tiles = {def.inventory_image}
+	
+		minetest.register_node(":" ..modname..":"..subname.. "_letter_" ..row[2], def)
+		
 		--[[minetest.register_craft({
 			output = from_node,
 			recipe = {