Added GUI's

Added player settings
Added commands

src/main/java/com/alttd/commands/CommandManager.java

@@ -1,6 +1,7 @@
 package com.alttd.commands;
 
 import com.alttd.AltitudeParticles;
+import com.alttd.commands.subcommands.CommandGUI;
 import com.alttd.commands.subcommands.CommandHelp;
 import com.alttd.commands.subcommands.CommandReload;
 import com.alttd.config.Config;
@@ -31,20 +32,17 @@ public class CommandManager implements CommandExecutor, TabExecutor {
 
         subCommands = Arrays.asList(
                 new CommandHelp(this),
-                new CommandReload());
+                new CommandReload(),
+                new CommandGUI());
     }
 
     @Override
     public boolean onCommand(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String cmd, @NotNull String[] args) {
-        if (args.length == 0) {
-            commandSender.sendMiniMessage(Config.HELP_MESSAGE_WRAPPER.replaceAll("<config>", subCommands.stream()
-                    .filter(subCommand -> commandSender.hasPermission(subCommand.getPermission()))
-                    .map(SubCommand::getHelpMessage)
-                    .collect(Collectors.joining("\n"))), null);
-            return true;
-        }
-
-        SubCommand subCommand = getSubCommand(args[0]);
+        SubCommand subCommand;
+        if (args.length == 0)
+            subCommand = getSubCommand("gui");
+        else
+            subCommand = getSubCommand(args[0]);
 
         if (!commandSender.hasPermission(subCommand.getPermission())) {
             commandSender.sendMiniMessage(Config.NO_PERMISSION, null);

src/main/java/com/alttd/commands/subcommands/CommandGUI.java

@@ -0,0 +1,38 @@
+package com.alttd.commands.subcommands;
+
+import com.alttd.commands.SubCommand;
+import com.alttd.config.Config;
+import com.alttd.gui.windows.OpenParticleGUI;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CommandGUI extends SubCommand {
+
+    @Override
+    public boolean onCommand(CommandSender commandSender, String[] args) {
+        if (!(commandSender instanceof Player player)) {
+            commandSender.sendMiniMessage(Config.NO_CONSOLE, null);
+            return true;
+        }
+        new OpenParticleGUI(player).open(player);
+        return true;
+    }
+
+    @Override
+    public String getName() {
+        return "gui";
+    }
+
+    @Override
+    public List<String> getTabComplete(CommandSender commandSender, String[] args) {
+        return new ArrayList<>();
+    }
+
+    @Override
+    public String getHelpMessage() {
+        return Config.GUI_HELP_MESSAGE;
+    }
+}

src/main/java/com/alttd/commands/subcommands/CommandReload.java

@@ -30,6 +30,6 @@ public class CommandReload extends SubCommand {
 
     @Override
     public String getHelpMessage() {
-        return Config.RELOAD_MESSAGE;
+        return Config.RELOAD_HELP_MESSAGE;
     }
 }