Fix /dh command being deleted after reloading.

common/src/main/java/com/seibel/distanthorizons/common/AbstractModInitializer.java

@@ -115,8 +115,8 @@ public abstract class AbstractModInitializer
 		this.initializeModCompat();
 		
 		LOGGER.info(ModInfo.READABLE_NAME + " server Initialized, adding event subscribers...");
-		
-		this.subscribeRegisterCommandsEvent(dispatcher -> { this.commandInitializer = new CommandInitializer(dispatcher); });
+		this.commandInitializer = new CommandInitializer();
+		this.subscribeRegisterCommandsEvent(dispatcher -> { commandInitializer.initCommands(dispatcher); });
 		
 		this.subscribeServerStartingEvent(server -> 
 		{
@@ -124,7 +124,7 @@ public abstract class AbstractModInitializer
 			
 			this.initConfig();
 			this.postInit();
-			this.commandInitializer.initCommands();
+			this.commandInitializer.onServerReady();
 			
 			this.checkForUpdates();
 			

common/src/main/java/com/seibel/distanthorizons/common/commands/CommandInitializer.java

@@ -12,25 +12,42 @@ import static net.minecraft.commands.Commands.literal;
  */
 public class CommandInitializer
 {
-	private final CommandDispatcher<CommandSourceStack> commandDispatcher;
+	private boolean serverReady = false;
+	
+	private CommandDispatcher<CommandSourceStack> commandDispatcher;
 	
 	/**
 	 * Constructs a new instance of this class.
-	 *
-	 * @param commandDispatcher The dispatcher to use for registering commands.
 	 */
-	public CommandInitializer(CommandDispatcher<CommandSourceStack> commandDispatcher)
-	{
-		this.commandDispatcher = commandDispatcher;
+	public CommandInitializer() {}
+	
+	/**
+	 * Notify the command initializer that the game is ready to accept commands.
+	 * If {@link CommandInitializer#initCommands(CommandDispatcher)} has been fired before it was ready, it will also initialize the commands.
+	 */
+	public void onServerReady() {
+		serverReady = true;
+		if (commandDispatcher != null)
+		{
+			initCommands(commandDispatcher);
+			commandDispatcher = null;
+		}
 	}
 	
-	
-	
 	/**
 	 * Initializes all available commands.
+	 * If the game is not ready yet, it stores the dispatcher to initialize the commands later.
+	 * 
+	 * @param commandDispatcher The command dispatcher to register commands to.
 	 */
-	public void initCommands()
+	public void initCommands(CommandDispatcher<CommandSourceStack> commandDispatcher)
 	{
+		if (!serverReady)
+		{
+			this.commandDispatcher = commandDispatcher;
+			return;
+		}
+		
 		LiteralArgumentBuilder<CommandSourceStack> builder = literal("dh")
 				.requires(source -> source.hasPermission(4));
 		
@@ -43,7 +60,7 @@ public class CommandInitializer
 			builder.then(new CrashCommand().buildCommand());
 		}
 		
-		this.commandDispatcher.register(builder);
+		commandDispatcher.register(builder);
 	}
 	
 }