if (Perso.position == Weapon.position) {
    $("#" + Perso.position).removeClass();
    $("#" + Weapon.position).removeClass();
    let previousWeapon = Perso.weapon.visual;
    $(".perso1").css("background-image", this.weapons.visual, url("perso1.png"));
    $("#" + Weapon.position).css("background-image",previousWeapon);
}