Add rainbow commands

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;
+    }
+}

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

@@ -0,0 +1,49 @@
+package me.totalfreedom.totalfreedommod.command;
+
+import java.util.Iterator;
+import me.totalfreedom.totalfreedommod.rank.Rank;
+import me.totalfreedom.totalfreedommod.util.FUtil;
+import org.apache.commons.lang3.StringUtils;
+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 = "Gives you a rainbow tag", usage = "/<command> <tag>")
+public class Command_rainbowtag 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 tag = ChatColor.stripColor(FUtil.colorize(StringUtils.join(args, " ")));
+
+        if(tag.length() > 20)
+        {
+            msg("That tag is too long (Max is 20 characters).");
+            return true;
+        }
+
+        for (String word : Command_tag.FORBIDDEN_WORDS) 
+        {
+            if (tag.contains(word))
+            {
+                msg("That tag contains a forbidden word.");
+                return true;
+            }
+        }
+
+        plugin.pl.getPlayer(playerSender).setTag(FUtil.rainbowify(tag));
+
+        msg("Set tag to " + tag);
+
+        return true;
+    }
+}
+

src/main/java/me/totalfreedom/totalfreedommod/util/FUtil.java

@@ -11,6 +11,7 @@
 import java.util.Date;
 import java.util.GregorianCalendar;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -40,18 +41,19 @@ public class FUtil
     public static String DATE_STORAGE_FORMAT = "EEE, d MMM yyyy HH:mm:ss Z";
     public static final Map<String, ChatColor> CHAT_COLOR_NAMES = new HashMap<>();
     public static final List<ChatColor> CHAT_COLOR_POOL = Arrays.asList(
-            ChatColor.DARK_BLUE,
-            ChatColor.DARK_GREEN,
-            ChatColor.DARK_AQUA,
             ChatColor.DARK_RED,
-            ChatColor.DARK_PURPLE,
+            ChatColor.RED,
             ChatColor.GOLD,
-            ChatColor.BLUE,
+            ChatColor.YELLOW,
             ChatColor.GREEN,
+            ChatColor.DARK_GREEN,
             ChatColor.AQUA,
-            ChatColor.RED,
-            ChatColor.LIGHT_PURPLE,
-            ChatColor.YELLOW);
+            ChatColor.DARK_AQUA,
+            ChatColor.BLUE,
+            ChatColor.DARK_BLUE,
+            ChatColor.DARK_PURPLE,
+            ChatColor.LIGHT_PURPLE);
+    private static Iterator<ChatColor> CHAT_COLOR_ITERATOR;
 
     static
     {
@@ -368,6 +370,25 @@ public static ChatColor randomChatColor()
     {
         return CHAT_COLOR_POOL.get(RANDOM.nextInt(CHAT_COLOR_POOL.size()));
     }
+
+    public static String rainbowify(String string)
+    {
+        CHAT_COLOR_ITERATOR = CHAT_COLOR_POOL.iterator();
+
+        final StringBuilder newString = new StringBuilder();
+        final char[] chars = string.toCharArray();
+
+        for (char c : chars)
+        {
+            if (!CHAT_COLOR_ITERATOR.hasNext())
+            {
+                CHAT_COLOR_ITERATOR = CHAT_COLOR_POOL.iterator(); //Restart from first colour if there are no more colours in iterator.
+            }
+            newString.append(CHAT_COLOR_ITERATOR.next()).append(c);
+        }
+
+        return newString.toString();
+    }
 
     public static String colorize(String string)
     {