[mad]

public class ModuleWrapper {

    private LinkedHashMap<Condition, ArrayList<Module>> arrayListMap = new LinkedHashMap<>();

    public ArrayList addModuleList(Condition condition) {
        return arrayListMap.put(condition, new ArrayList<>());
    }

    private ArrayList<Module> getMapKey(int key) {
        return arrayListMap.get(arrayListMap.keySet().toArray()[key]);
    }

    public void submit(final Module module, int key) {
        if(getMapKey(key) !=null) {
            getMapKey(key).add(module);
        }
    }

    public ArrayList<Module> getValidList() {
        ArrayList<Module> validList = new ArrayList<>();
        arrayListMap.forEach((aBoolean, modules) -> {
                if(aBoolean.check()) {
                    modules.forEach(validList::add);
                }
        });
        return validList;
    }

    public Module getValidModule() {
        for(Module m : getValidList()) {
            if(m.validate())
                return m;
        }
        return null;
    }
}

Module Interface

public interface Module {

    boolean validate();

    void execute();

}

Condition Interface

public interface Condition {

    boolean check();

}

Usage:

   public boolean onStart() {
            mw.addModuleList(Bank::isOpen);
            mw.addModuleList(() -> !Bank.isOpen());
            mw.submit(new Example(), 0);
            mw.submit(new Example2(), 1);
        return true;
    }

You can add array lists and then add modules to those array lists by putting the index of the array list in the hashmap as a parameter in the submit.

Then getValidModule gets the valid array list and then iterates through that valid list for modules that are valid.

This is a really easy way to split up scripts into sections.

 

[hazard]

The Task system is much easier in my opinion.. (and already supported by RM)

Main:

@Override
public void onStart(String... args) {
add(new ChopTreeTask());
}

ChopTreeTask.java

public class ChopTreeTask extends Task {
@Override
public boolean validate() {
return Skill.WOODCUTTING.getBaseLevel() > 60;
}

@Override
public void execute() {
tree = GameObjects.newQuery().names("Yew").results().nearest();
if(tree != null) {
tree.interact("Chop");
}
}
}

 

[slashnhax]

Also, Tasks can have children Tasks, and can do what the OP wants already through this xD