setBlockBounds(0.001f, 0.001f, 0.001f, 0.999f, 0.999f, 0.999f);

    @Override
    public void onEntityCollidedWithBlock(World world, int x, int y, int z, Entity entity) {
        super.onEntityCollidedWithBlock(world, x, y, z, entity);
        if (entity.isSneaking()) {
            entity.setPosition(entity.posX, entity.posY - entity.motionY, entity.posZ);
            entity.motionY = 0;
        }
    }