Hey everybody,

So I'm trying to change player's eye height to a given float value

I've been trying to get the private value from Entity class called eyeHeight, but for some reason it won't recognize it

 

 @SubscribeEvent
    public void onTicking(TickEvent.PlayerTickEvent e) {
    	if (e.player.world.isRemote) {
    		Class cls = e.player.getClass();
    		Field field = null;
    		while (cls != null) {
    			try {
    				field = cls.getDeclaredField("field_213326_aJ");
    				field.setAccessible(true);
    				field.set(e.player, 5.0f);
    				
    			} catch (NoSuchFieldException | IllegalAccessException ex){
    				cls = cls.getSuperclass();
        			Minecraft.getInstance().player.sendMessage(new TranslationTextComponent(ex.toString()));
    			}
    		}
    	}
    	
    }

 

I've noticed trying to get declaredField named "eyeHeight" throws an exception for some reason, while trying to get "field_213326_aJ" seems to crush the client, no error messages given tho

What could be the issue? Am I getting something wrong?

Just a small update to my question..

It seems that running the mod as client and not a server from eclipse works fine in singleplayer but when it come to running them mod as a server and then either playing single/multi it doesn't work at all. I've try adding OnlyIn(Dist.CLIENT) and checking if isRemote, which also didn't help sadly..

1. You need to use ObfuscationReflectionHelper (can’t remember the exact spelling).

2. Reflection is expensive. Use it once and store the result in a static field and use that from now on.

3. You should directly reference PlayerEntity.class instead of using getClass.

25 minutes ago, DavidM said:

1. You need to use ObfuscationReflectionHelper (can’t remember the exact spelling).

2. Reflection is expensive. Use it once and store the result in a static field and use that from now on.

3. You should directly reference PlayerEntity.class instead of using getClass.

ObfuscationReflectionHelper  did the trick!

Also I'll take that to my attention! Thanks a lot