How would I prevent the Minecraft#player from attacking an entity (left clicking it) if he plays on a vanilla server?

I already tried using the AttackEntityEvent and LivingAttackEvent and both actually get fired clientside but I can't seem to cancel them.

10 minutes ago, diesieben07 said:

ClickInputEvent can be used to prevent all left clicks.

 

Thank you for that hint. I solved it by doing this:

    @SubscribeEvent
    public void onUserAttack(InputEvent.ClickInputEvent event) {
        if(event.isAttack()) {
            if(Minecraft.getInstance().objectMouseOver.getType()==RayTraceResult.Type.ENTITY) {
                EntityRayTraceResult result=(EntityRayTraceResult) Minecraft.getInstance().objectMouseOver;
                //example to check if target is of type pig
                if(result.getEntity().getType()==EntityType.PIG) event.setCanceled(true);
            }
        }
    }