Added custom restart cmd with an event and a bar

src/main/java/buttondevteam/core/ScheduledRestartCommand.java

@@ -0,0 +1,71 @@
+package buttondevteam.core;
+
+import org.bukkit.Bukkit;
+import org.bukkit.boss.BarColor;
+import org.bukkit.boss.BarFlag;
+import org.bukkit.boss.BarStyle;
+import org.bukkit.boss.BossBar;
+import org.bukkit.command.CommandSender;
+import org.bukkit.scheduler.BukkitTask;
+
+import buttondevteam.lib.ScheduledServerRestartEvent;
+import buttondevteam.lib.chat.TBMCCommandBase;
+
+public class ScheduledRestartCommand extends TBMCCommandBase {
+	private static volatile int restartcounter;
+	private static volatile BukkitTask restarttask;
+	private static volatile BossBar restartbar;
+
+	@Override
+	public boolean OnCommand(CommandSender sender, String alias, String[] args) {
+		int ticks = 20 * 60;
+		try {
+			if (args.length > 0)
+				ticks = Integer.parseInt(args[0]);
+		} catch (NumberFormatException e) {
+		}
+		if (ticks < 20) {
+			sender.sendMessage("§cError: Ticks must be more than 20.");
+			return false;
+		}
+		final int restarttime = restartcounter = ticks;
+		restartbar = Bukkit.createBossBar("Server restart in " + ticks / 20f, BarColor.RED, BarStyle.SOLID,
+				BarFlag.DARKEN_SKY);
+		restartbar.setProgress(1);
+		Bukkit.getOnlinePlayers().stream().forEach(p -> restartbar.addPlayer(p));
+		sender.sendMessage("Scheduled restart in " + ticks / 20f);
+		ScheduledServerRestartEvent e = new ScheduledServerRestartEvent(ticks);
+		Bukkit.getPluginManager().callEvent(e);
+		restarttask = Bukkit.getScheduler().runTaskTimerAsynchronously(MainPlugin.Instance, () -> {
+			if (restartcounter < 0) {
+				restarttask.cancel();
+				restartbar.getPlayers().stream().forEach(p -> restartbar.removePlayer(p));
+				Bukkit.spigot().restart();
+			}
+			if (restartcounter % 200 == 0)
+				Bukkit.broadcastMessage("§c-- The server is restarting in " + restartcounter);
+			restartbar.setProgress(restartcounter / restarttime);
+			restartcounter--;
+		}, 1, 1);
+		return true;
+	}
+
+	@Override
+	public String[] GetHelpText(String alias) {
+		return new String[] { //
+				"§6---- Scheduled restart ----", //
+				"This command restarts the server 1 minute after it's executed, warning players every 10 seconds.", //
+				"You can optionally set the amount of ticks to wait before the restart." //
+		};
+	}
+
+	@Override
+	public boolean GetPlayerOnly() {
+		return false;
+	}
+
+	@Override
+	public boolean GetModOnly() {
+		return true;
+	}
+}

src/main/java/buttondevteam/lib/ScheduledServerRestartEvent.java

@@ -0,0 +1,27 @@
+package buttondevteam.lib;
+
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+
+public class ScheduledServerRestartEvent extends Event {
+	private static final HandlerList handlers = new HandlerList();
+
+	private int restartticks;
+
+	public ScheduledServerRestartEvent(int restartticks) {
+		this.restartticks = restartticks;
+	}
+
+	public int getRestartTicks() {
+		return restartticks;
+	}
+
+	@Override
+	public HandlerList getHandlers() {
+		return handlers;
+	}
+
+	public static HandlerList getHandlerList() {
+		return handlers;
+	}
+}