Update existing plugins to use the new utils plugin.

data/plugins/cmd/item/item.rb

@@ -2,13 +2,10 @@ require 'java'
 
 java_import 'org.apollo.game.model.def.ItemDefinition'
 
-# Adds the specified item to the player's own inventory.
+# Adds the specified item to the player's inventory.
 on :command, :item, RIGHTS_ADMIN do |player, command|
   args = command.arguments
-  unless (1..2).include? args.length
-    player.send_message('Invalid syntax - ::item [id] [amount]')
-    next
-  end
+  next unless valid_arg_length(args, (1..2), player, 'Invalid syntax - ::item [id] [amount]')
  
   id = args[0].to_i
   amount = args.length == 2 ? args[1].to_i : 1
@@ -20,13 +17,10 @@ on :command, :item, RIGHTS_ADMIN do |player, command|
   player.inventory.add(id, amount)
 end
 
-# Removes the specified item from the player's own inventory.
+# Removes the specified item from the player's inventory.
 on :command, :remove, RIGHTS_MOD do |player, command|
   args = command.arguments
-  unless (1..2).include? args.length
-    player.send_message('Invalid syntax - ::remove [id] [amount]')
-    next
-  end
+  next unless valid_arg_length(args, (1..2), player, 'Invalid syntax - ::remove [id] [amount]')
 
   id = args[0].to_i
   amount = args.length == 2 ? args[1].to_i : 1
@@ -38,14 +32,12 @@ on :command, :remove, RIGHTS_MOD do |player, command|
   player.inventory.remove(id, amount)
 end
 
-# Clears the player's own inventory.
+# Clears the player's inventory.
 on :command, :empty, RIGHTS_MOD do |player, command|
   player.inventory.clear
 end
 
-# Gives the player one thousand of each rune.
+# Gives the player 1,000 of each rune.
 on :command, :runes, RIGHTS_ADMIN do |player, command|
-  (554..566).each do |i|
-    player.inventory.add(i, 1000)
-  end
+  (554..566).each { |item| player.inventory.add(item, 1000) }
 end