1.13.2 Registering custom triggers

[salvestrom]

So this is how I have it in 1.12:

Method method;
        for (int i=0; i < JungleTriggerRegistry.TRIGGER_ARRAY.length; i++)
        {
            try
            {
                method = ReflectionHelper.findMethod(CriteriaTriggers.class, "register", "func_192118_a", ICriterionTrigger.class);
                method.setAccessible(true);            

                method.invoke(null, JungleTriggerRegistry.TRIGGER_ARRAY[i]);
            }
            catch (SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e)
            {
                System.out.println("Failed to register trigger " + JungleTriggerRegistry.TRIGGER_ARRAY[i].getId() + "!");
                e.printStackTrace();
            }
        }

Reflection helper doesn't exist in 1.13. The reflection class available doesn't seem to have a similar "find method" method. Is there a substitute for this? Is using reflection to do this necessary any more? The method for registering criteria is public, I noticed.

[DavidM]

You can use ObfuscationReflectionHelper.

An example of the findMethod method:

ObfuscationReflectionHelper.findMethod(EntityLiving.class, "func_184647_J", new Class[0]);

1st param: The class in which the findMethod method should look.

2nd param: The SRG name of the method.

3rd param: An array of the classes of the parameters of the method to be found.

 

In addition, do not use reflection to find the same method every time, as reflections are expensive. Find the method once and store it in a static field, and use the value stored in the static field after that.

Edited June 9, 2019 by DavidM

[Cadiboo]

I’m pretty sure that in recent versions you only need the name and not the class or parameters.