class CardClass implements Card{
    private int value;
    private boolean face;
    private Color color;

    public Color color(){
        return this.color;
    }

    public int value(){
        return this.value;
    }

    public boolean similarColorTo(Card c){
        if ((this.color == Color.HEARTS || this.color == Color.DIAMONDS) && (c.color == Color.HEARTS || c.color == Color.DIAMONDS)) {
            return true;
        }
        if ( (this.color == Color.CLUBS || this.color == Color.SPADES) && (c.color == Color.CLUBS || c.color == Color.SPADES) ){
            return true;
        }
        return false;
    }


    public boolean isTurnedFaceUp(){
        return this.face;
    }

    public boolean turnFaceUp(){
        if (this.face == false){
            this.face = true;
            return true;
        }
        return false;
    }

    public int compareValue(Card c){
        return this.value - c.value;
    }
}