// Use a loop to both move and attack.

var step = 12;
var flip = true;
var bottom_path = 22;
var top_path = 34;

loop {

    var enemy = this.findNearestEnemy(),
        item = this.findNearestItem();

    if (enemy) {

        this.moveXY(enemy.pos.x, enemy.pos.y);
        while (enemy.health > 0) this.attack(enemy);

    } else if (item) {

        destination = item.pos;
        this.moveXY(destination.x, destination.y);
        this.moveXY(this.pos.x, bottom_path);

    } else {

        if (flip) {
            this.moveXY(this.pos.x + 12, bottom_path);
        } else {
            this.moveXY(this.pos.x, top_path);
        }

        flip = !flip;

    }

}