export class Stack {
    constructor() {
        this.cards = [];
    }

    allows(card) {
        return card.color === 'BLACK' || this.cards.length === 0 || this.cards[this.cards.length - 1].allows(card);
    }

    add(card) {
        this.cards.push(card);
        if (this.cards.length > 5) {
            this.cards.splice(0, 1);
        }
        return true;
    }

    setTopColor(color) {
        this.cards[this.cards.length - 1].actualColor = color;
    }

    draw(renderer) {
        if (this.cards.length === 0) {
            return;
        }

        for (let i = 0; i < 5 && i < this.cards.length; i++) {
            this.cards[i].draw(renderer, -i * 6, -i * 6);
        }
    }
}