Add rainbownick

src/main/java/me/totalfreedom/totalfreedommod/command/Command_rainbownick.java

@@ -0,0 +1,60 @@
+package me.totalfreedom.totalfreedommod.command;
+
+import me.totalfreedom.totalfreedommod.rank.Rank;
+import me.totalfreedom.totalfreedommod.util.FUtil;
+import org.apache.commons.lang3.StringUtils;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+@CommandPermissions(level = Rank.OP, source = SourceType.ONLY_IN_GAME)
+@CommandParameters(description = "Essentials Interface Command - Rainbowify your nickname.", usage = "/<command> <nick>")
+public class Command_rainbownick extends FreedomCommand
+{
+
+    @Override
+    public boolean run(CommandSender sender, Player playerSender, Command cmd, String commandLabel, String[] args, boolean senderIsConsole)
+    {
+        if (args.length != 1)
+        {
+            return false;
+        }
+
+        final String nickPlain = ChatColor.stripColor(FUtil.colorize(args[0].trim()));
+
+        if (!nickPlain.matches("^[a-zA-Z_0-9" + ChatColor.COLOR_CHAR + "]+$"))
+        {
+            msg("That nickname contains invalid characters.");
+            return true;
+        }
+        
+        if (nickPlain.length() < 4 || nickPlain.length() > 30)
+        {
+            msg("Your nickname must be between 4 and 30 characters long.");
+            return true;
+        }
+
+        for (Player player : Bukkit.getOnlinePlayers())
+        {
+            if (player == playerSender)
+            {
+                continue;
+            }
+            if (player.getName().equalsIgnoreCase(nickPlain) || ChatColor.stripColor(player.getDisplayName()).trim().equalsIgnoreCase(nickPlain))
+            {
+                msg("That nickname is already in use.");
+                return true;
+            }
+        }
+        
+        final String newNick = FUtil.rainbowify(ChatColor.stripColor(FUtil.colorize(nickPlain)));
+        
+        plugin.esb.setNickname(sender.getName(), newNick);
+
+        msg("Your nickname is now: " + newNick);
+
+        return true;
+    }
+}