Portal Spawner

spawn = irandom(2);

    switch(spawn){
        case 0:
            instance_create_layer(304, 416, "keys", obj);

        break;
        case 1:
            instance_create_layer(335, 367, "keys", obj);

        break;
        case 2:
            instance_create_layer(335, 462, "keys", obj);

        break;
    }
}