this.smoke += other.smoke;
this.lightSmoke += other.lightSmoke; this.heavySmoke += other.heavySmoke;
    public void add(LosEffects other) {        this.blocked |= other.blocked;        this.lightWoods += other.lightWoods;        this.heavyWoods += other.heavyWoods;        this.smoke += other.smoke;        this.targetCover |= other.targetCover;        this.attackerCover |= other.attackerCover;        if ( null != this.thruBldg &&             !this.thruBldg.equals(other.thruBldg) ) {            this.thruBldg = null;        }    }