Step 3 for creating a Snake on SSaurel's Blog

generatefood.js

generatefood(nbx, nby) {
    // check food is not on the snake
    var self = this;
    var touch = true;
    var food = null;

    while (touch) {
        food = { x: randomInteger(0, this.nbx), y: randomInteger(0, this.nby) };

        this.elements.every((element) => {
            if (food.x == element.x && food.y == element.y) {
                touch = true;
                return false;
            }

            touch = false;
            return true;
        });
    }

    return food;
}