utils.js

const utils = {
    withGrid(n) {
        return n * 16;
    },
    asGridCoord(x,y) {
        //Se usa la "," entre ${x*16} y ${y*16} para habilitar numeros negativos 
        return `${x*16},${y*16}`
    },
    nextPosition(initialX, initialY, direction) {
        let x = initialX;
        let y = initialY;
        const size = 16;
        if (direction === "left") {
            x -= size;
        }else if (direction === "right") {
            x += size;
        }else if (direction === "up") {
            y -= size;
        }else if (direction === "down") {
            y += size;
        }
        return {x,y};
    },

    oppositeDirection(direction) {
        if (direction === "left") {return "right"};
        if (direction === "right") {return "left"};
        if (direction === "up") {return "down"};
        return "up";
    },

    wait(ms) {
        return new Promise(resolve => {
            setTimeout(() => {
            resolve()
        }, ms)
        })
    },

    randomFromArray(array) {
        return array[ Math.floor(Math.random()*array.length) ]
    },

    emitEvent(name, detail) {
        const event = new CustomEvent(name, {
            detail
        });
        document.dispatchEvent(event);
    }
}