public void moveTowards(Entity ent, Entity targ, float speed) {
        double vecX = targ.posX - ent.posX;
        double vecY = targ.posY - ent.posY;
        double vecZ = targ.posZ - ent.posZ;

        double dist2 = (double)Math.sqrt(vecX * vecX + vecY * vecY + vecZ * vecZ);
        ent.motionX += vecX / dist2 * speed;
        ent.motionY += vecY / dist2 * speed;
        ent.motionZ += vecZ / dist2 * speed;
    }