Adding config.yml.

src/main/java/com/github/caaarlowsz/pvp/PlayerListeners.java

@@ -22,7 +22,7 @@ private void onPlayerJoin(PlayerJoinEvent event) {
 		if (player.teleportToSpawn())
 			player.giveKit();
 
-		event.setJoinMessage("§7" + player.getDisplayName() + " entrou no servidor.");
+		event.setJoinMessage(Strings.getJoinMessage().replace("{player_name}", player.getDisplayName()));
 	}
 
 	@EventHandler(priority = EventPriority.NORMAL)
@@ -33,9 +33,10 @@ private void onPlayerDeath(PlayerDeathEvent event) {
 
 		Player killer = player.getKiller();
 		if (killer != null && killer != player)
-			event.setDeathMessage("§e" + killer.getDisplayName() + " §ematou " + player.getDisplayName() + "§e.");
+			event.setDeathMessage(Strings.getKillMessage().replace("{killer_name}", killer.getDisplayName())
+					.replace("{player_name}", player.getDisplayName()));
 		else
-			event.setDeathMessage("§e" + player.getDisplayName() + " §emorreu.");
+			event.setDeathMessage(Strings.getDeathMessage().replace("{player_name}", player.getDisplayName()));
 	}
 
 	@EventHandler(priority = EventPriority.NORMAL)
@@ -52,6 +53,6 @@ private void onPlayerQuit(PlayerQuitEvent event) {
 		Player player = event.getPlayer();
 
 		PvPClassic.removePlayer(player);
-		event.setQuitMessage("§7" + player.getDisplayName() + " saiu do servidor.");
+		event.setQuitMessage(Strings.getQuitMessage().replace("{player_name}", player.getDisplayName()));
 	}
 }

src/main/java/com/github/caaarlowsz/pvp/PvPClassic.java

@@ -37,6 +37,7 @@ public static PvPClassic getPlugin() {
 	@Override
 	public void onEnable() {
 		super.onEnable();
+		this.saveDefaultConfig();
 
 		PluginManager pm = Bukkit.getPluginManager();
 		pm.registerEvents(new PlayerListeners(), this);

src/main/java/com/github/caaarlowsz/pvp/PvPCommand.java

@@ -10,25 +10,25 @@ public final class PvPCommand implements CommandExecutor {
 
 	@Override
 	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
-		if (!sender.hasPermission("pvp.manage")) {
-			sender.hasPermission("§cVocê não possui permissão para usar este comando.");
+		if (!sender.hasPermission(cmd.getPermission())) {
+			sender.hasPermission(cmd.getPermissionMessage());
 			return true;
 		}
 		if (args.length == 0) {
-			sender.sendMessage("§cUse: /" + label + " [setspawn]");
+			sender.sendMessage(cmd.getUsage());
 			return true;
 		}
 
 		if (args[0].equalsIgnoreCase("setspawn")) {
 			if (!(sender instanceof Player)) {
-				sender.sendMessage("§cApenas jogadores podem usar este comando.");
+				sender.sendMessage(Strings.getCommandOnlyPlayers());
 				return true;
 			}
 
 			Location loc = ((Player) sender).getLocation();
 			loc.getWorld().setSpawnLocation(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ());
-			sender.sendMessage("§aVocê definiu a posição do spawn em " + loc.getBlockX() + ", " + loc.getBlockY() + ", "
-					+ loc.getBlockZ() + ".");
+			sender.sendMessage(Strings.getSetSpawnSuccess().replace("{x}", String.valueOf(loc.getBlockX()))
+					.replace("{y}", String.valueOf(loc.getBlockY())).replace("{z}", String.valueOf(loc.getBlockZ())));
 			return true;
 		}
 		return true;

src/main/java/com/github/caaarlowsz/pvp/SpawnCommand.java

@@ -13,26 +13,26 @@ public final class SpawnCommand implements CommandExecutor {
 	@Override
 	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
 		if (!(sender instanceof Player)) {
-			sender.sendMessage("§cApenas jogadores podem usar este comando.");
+			sender.sendMessage(Strings.getCommandOnlyPlayers());
 			return true;
 		}
 
 		PvPPlayer player = PvPClassic.getPlayer((Player) sender);
 		if (player.getGameMode() == GameMode.CREATIVE && player.teleportToSpawn()) {
 			player.giveKit();
-			player.sendMessage("§aTeleportado para o spawn.");
+			player.sendMessage(Strings.getToSpawn());
 			return true;
 		}
 
 		PlayerInventory inv = player.getInventory();
 		inv.setArmorContents(null);
 		inv.clear();
 		player.setHealth(4);
-		player.sendMessage("§6Teleportando para o spawn... §8(aguarde 3s)");
+		player.sendMessage(Strings.getWaitToSpawn());
 		Bukkit.getScheduler().runTaskLater(PvPClassic.getPlugin(), () -> {
 			if (player.teleportToSpawn()) {
 				player.giveKit();
-				player.sendMessage("§aTeleportado para o spawn.");
+				player.sendMessage(Strings.getToSpawn());
 			}
 		}, 60);
 		return true;

src/main/java/com/github/caaarlowsz/pvp/Strings.java

@@ -0,0 +1,45 @@
+package com.github.caaarlowsz.pvp;
+
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.FileConfiguration;
+
+public final class Strings {
+
+	private static FileConfiguration config = PvPClassic.getPlugin().getConfig();
+
+	public static String getJoinMessage() {
+		return color(config.getString("join-message"));
+	}
+
+	public static String getQuitMessage() {
+		return color(config.getString("quit-message"));
+	}
+
+	public static String getDeathMessage() {
+		return color(config.getString("death-message"));
+	}
+
+	public static String getKillMessage() {
+		return color(config.getString("kill-message"));
+	}
+
+	public static String getCommandOnlyPlayers() {
+		return color(config.getString("command-only-players"));
+	}
+
+	public static String getSetSpawnSuccess() {
+		return color(config.getString("setspawn-success"));
+	}
+
+	public static String getToSpawn() {
+		return color(config.getString("to-spawn"));
+	}
+
+	public static String getWaitToSpawn() {
+		return color(config.getString("wait-to-spawn"));
+	}
+
+	private static String color(String input) {
+		return ChatColor.translateAlternateColorCodes('&', input);
+	}
+}

src/main/resources/config.yml

@@ -0,0 +1,8 @@
+join-message: '&7{player_name} joined the server.'
+quit-message: '&7{player_name} left the server.'
+death-message: '&e{player_name} died.'
+kill-message: '&e{player_name} was killed by {killer_name}.'
+command-only-players: '&cCommand for players only.'
+setspawn-success: '&aYou set the spawn position to {x}, {y}, {z}.'
+wait-to-spawn: '&6Teleporting from spawn... &7(wait 3s)'
+to-spawn: '&aTeleported to spawn.'