EventUtil.java

package universalteam.universalcore.utils;

import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.common.MinecraftForge;

import java.lang.reflect.Method;

public class EventUtil
{
	public static void register(Object instance)
	{
		boolean fml = false;
		boolean forge = false;
		Class<?> clazz = instance.getClass();

		for (Method method : clazz.getMethods())
		{
			if (method.isAnnotationPresent(SubscribeEvent.class))
			{
				if (method.getParameterTypes().length != 1)
					return;

				Class<?> event = method.getParameterTypes()[0];

				if (event.getName().contains("net.minecraftforge.event"))
					forge = true;
				else if (event.getName().contains("cpw.mods.fml.common.gameevent"))
					fml = true;
			}
		}

		if (fml && forge)
			register(instance, BusType.BOTH);
		else if (fml)
			register(instance, BusType.FML);
		else if (forge)
			register(instance, BusType.FORGE);
	}

	public static void register(Object instance, BusType type)
	{
		if (type == BusType.FML || type == BusType.BOTH)
			FMLCommonHandler.instance().bus().register(instance);

		if (type == BusType.FORGE || type == BusType.BOTH)
			MinecraftForge.EVENT_BUS.register(instance);
	}

	public static enum BusType
	{
		FML,
		FORGE,
		BOTH
	}
}