Fixed some code, added argument to !roll

complexCommands.lua

@@ -11,8 +11,12 @@ local commands = { -- Define commands its a table that will contain our commands
     end
     };
 [prefix..'roll'] = { -- Rolls a d20, check RNG for more info.
-   exec = function (message)
+   exec = function (message, arg)
+    if not arg[2] then
         message.channel:send(rng.d20())
+    else
+        message.channel:send(rng.roll(arg))
+    end
     end
     };
 [prefix..'figlet'] = { -- Parrots input to figlet, then echos it to the same channel you are in.

rng.lua

@@ -17,4 +17,21 @@ function rng.d20()
     return message
 end
 
+function rng.roll(arg)
+     tools.seed()
+     local mathArgument = arg[2]
+     local compareNumber = tonumber(mathArgument)
+     local dice = math.random(mathArgument)
+     local messagePart1 = ('You rolled a ' .. dice .. ' out of '..mathArgument)
+     local messagepart2 = ''
+     if dice == compareNumber then
+          messagepart2 = ('Nat '..mathArgument..'! Crititcal Hit')
+     else if dice==1 then
+          messagepart2 = ('Nat 1! Critical Shit!')
+     end
+     end
+     local message = messagePart1 .. '\n' .. messagepart2
+     return message
+ end
+
 return rng