I am trying to set up a command structure that would use /myMod myNewCommand Arguments

 

It seems that I could register 1 command class that uses /myMod as its sole alias and handle various subcommands during the execution of that single super command. An example of this follows:

package kmm.TestMod.Commands;

import net.minecraft.command.CommandBase;
import net.minecraft.command.CommandException;
import net.minecraft.command.ICommandSender;
import net.minecraft.server.MinecraftServer;
import net.minecraft.world.World;

/**
*
* @author Rinzler
*/
public class CommandTester extends CommandBase {

    @Override
    public String getCommandName() {
        return "myModName";
    }

    @Override
    public String getCommandUsage(ICommandSender sender) {
        return "help";
    }

    @Override
    public void execute(MinecraftServer server, ICommandSender sender, String[] args) throws CommandException {
        //
        World world = sender.getEntityWorld();
        
        if(world.isRemote) {
            //do stuff
        } else {
            if(args[0].equals("myNewCommand1")) {
                if(args.length > 1) {
                    //do myNewCommand1 plus Arguments
                } else {
                    //do stuff for myNewCommand1 no arguments
                }                
            }
            if(args[0].equals("myNewCommand2")) {
                if(args.length > 1) {
                    //do stuff for myNewCommand2 plus arguments
                } else {
                    //do stuff for myNewCommand2 no arguments
                }
            }
            //...more commands...
        }
        
        
    }
    

}

Is there a better way of doing this such that I can use /myMod as a command opener?

Extend

CommandTreeBase

to create a command with sub-commands. Use

CommandTreeBase#addSubcommand

to add a sub-command.

Extend

CommandTreeBase

to create a command with sub-commands. Use

CommandTreeBase#addSubcommand

to add a sub-command.

Exactly what I needed. Thanks! I have it working as I wanted now.

 

However, do I need to handle the help text for each subcommand? I can't seem to access it otherwise.

 

/help mymod gets the help text from the CommandTreeBase...but I can't seem to find the texts for the subcommands. I could just add a help argument branch for each subcommand...

 

edit: I am generating the help text by simply having

public void execute(MinecraftServer server, ICommandSender sender, String[] args) throws CommandException {
        

        if (args.length == 1 && args[0].equals("help")) {
            sender.addChatMessage(new TextComponentString(getCommandUsage(sender)));
        }
    }

in my subcommand execution. Seems to be working fine, although perhaps there is a better way.

Extend

CommandTreeBase

to create a command with sub-commands. Use

CommandTreeBase#addSubcommand

to add a sub-command.

Exactly what I needed. Thanks! I have it working as I wanted now.

 

However, do I need to handle the help text for each subcommand? I can't seem to access it otherwise.

 

/help mymod gets the help text from the CommandTreeBase...but I can't seem to find the texts for the subcommands. I could just add a help argument branch for each subcommand...

 

edit: I am generating the help text by simply having

public void execute(MinecraftServer server, ICommandSender sender, String[] args) throws CommandException {
        

        if (args.length == 1 && args[0].equals("help")) {
            sender.addChatMessage(new TextComponentString(getCommandUsage(sender)));
        }
    }

in my subcommand execution. Seems to be working fine, although perhaps there is a better way.

 

For my mod's command, I added a

help

sub-command that extends

CommandHelp

, stores the instance of the base command and overrides

CommandHelp#getCommandMap

and

CommandHelp#getSortedPossibleCommands

to return values from the base command.

 

CommandTreeBase

provides a

getCommandMap

method, but you have to implement

getSortedPossibleCommands

yourself (

CommandHelp

calls

ICommandManager#getPossibleCommands

and sorts the result).

 

You can see the base command here and the

help

sub-command here.

 

Unfortunately this prints the vanilla header (which says

/help

instead of

/testmod3 help

), but you'd need to re-implement

CommandHelp#execute

yourself to get around this.

Extend

CommandTreeBase

to create a command with sub-commands. Use

CommandTreeBase#addSubcommand

to add a sub-command.

Exactly what I needed. Thanks! I have it working as I wanted now.

 

However, do I need to handle the help text for each subcommand? I can't seem to access it otherwise.

 

/help mymod gets the help text from the CommandTreeBase...but I can't seem to find the texts for the subcommands. I could just add a help argument branch for each subcommand...

 

edit: I am generating the help text by simply having

public void execute(MinecraftServer server, ICommandSender sender, String[] args) throws CommandException {
        

        if (args.length == 1 && args[0].equals("help")) {
            sender.addChatMessage(new TextComponentString(getCommandUsage(sender)));
        }
    }

in my subcommand execution. Seems to be working fine, although perhaps there is a better way.

 

For my mod's command, I added a

help

sub-command that extends

CommandHelp

, stores the instance of the base command and overrides

CommandHelp#getCommandMap

and

CommandHelp#getSortedPossibleCommands

to return values from the base command.

 

CommandTreeBase

provides a

getCommandMap

method, but you have to implement

getSortedPossibleCommands

yourself (

CommandHelp

calls

ICommandManager#getPossibleCommands

and sorts the result).

 

You can see the base command here and the

help

sub-command here.

 

Unfortunately this prints the vanilla header (which says

/help

instead of

/testmod3 help

), but you'd need to re-implement

CommandHelp#execute

yourself to get around this.

 

For the help files I am now using

if (args.length == 1 && args[0].equals("help")) {
      throw new WrongUsageException("commands.testmod.command1.usage", new Object[0]);
      //TextComponentTranslation tct = new TextComponentTranslation("commands.testmod.command1.usage", new Object[0]);
      //sender.addChatMessage(tct);
}

 

Seems to work fine. Both the WrongUsageException and the TextComponentTranslation are working to get the string from the lang file.

Just a quick tip: you don't have to put

new Object[0]

. Those are varargs and can just leave it blank.

Or rather: varargs is syntactic sugar that allows the compiler to automatically wrap the parameters in a

new Object[]

for you. This includes 0 extra arguments.

Or rather: varargs is syntactic sugar that allows the compiler to automatically wrap the parameters in a

new Object[]

for you. This includes 0 extra arguments.

 

I like Syntactic Sugar. It reminds me of the flavor of my tears when sitting through Data Structures and Algorithms a couple years ago.

I like Syntactic Sugar. It reminds me of the flavor of my tears when sitting through Data Structures and Algorithms a couple years ago.

 

Trust me, I learned more about data structures and algorithms from modding Minecraft than I ever did in college.