[1.15.2] Setting player's eye height

[Melodia]

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?

[Melodia]

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..

[DavidM]

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.

[Melodia]

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