Is there an easy way to send a message to all the players on a server? I have a working method but it seems a bit overkill.

 

@SubscribeEvent
public void livingDeathEvent(LivingDeathEvent event) {
	EntityLiving entity = (EntityLiving) event.entityLiving;
	boolean f1 = false;
	if(!entity.worldObj.isRemote) {
		if(entity instanceof EntityDragon) {
			ServerProxyRF.getWorldProperty(entity.worldObj.getWorldInfo().getWorldName(), "hasDefeatedEnderDragon", false).set(true);
			f1 = true;
		}
	} else {
		if(f1) {
			Minecraft.getMinecraft().thePlayer.addChatComponentMessage(new ChatComponentText(EnumChatFormatting.DARK_RED + "You hear screams of terror echo throughout the dimensions..."));
		}
	}
}

That second leg of your outer if will never send the message. Your local variable (f1) is always false in that leg. It only gets set true (sometimes) in the other leg. Get rid of the "} else {" and just let the code fall through to the "if (f1) ..." part.

Use Packet3Chat.

The most simple way is: (Note: This is scala code)

 

MinecraftServer.getServer.getConfigurationManager.sendChatMsg(chatComponent)