if (!init)
{
    show_debug_message_concat(skip);
    show_debug_message_concat(fallspeed);
    show_debug_message_concat(stack);
    show_debug_message_concat(ydist);
    show_debug_message_concat(spacing);
    for (var i = 0; i < stack; i++)
    {
        var rock = 
        {
            x: x,
            y: y + (i * spacing),
            xstart: x,
            ystart: y,
            skip: false,
            scale: 0
        };
        array_push(blocks, rock);
    }
    for (var i = 0; i < array_length(skip); i++)
    {
        if (skip[i] <= stack)
            blocks[skip[i]].skip = true;
    }
    init = 1;
}
siner++;
for (var i = 0; i < array_length(blocks); i++)
{
    var blok = blocks[i];
    if (!blok.skip)
    {
        blok.x = (sin((siner + (i * 8)) / 4) * 4) + blok.xstart;
        blok.y += fallspeed;
        var distfade = 120;
        if (blok.y > ((blok.ystart + ydist) - distfade))
            blok.scale -= 1 / (distfade / fallspeed);
        else
            blok.scale = lerp(blok.scale, 1, 0.3);
        if (blok.y > (blok.ystart + ydist))
        {
            blok.y -= ydist;
            blok.scale = 0;
        }
        var buffer = 12;
        if (instance_exists(obj_climb_kris))
        {
            if (instance_exists(collision_rectangle(blok.x + buffer, blok.y + buffer, (blok.x + 40) - buffer, (blok.y + 40) - buffer, obj_climb_kris, true, true)))
                obj_climb_kris.didhit = id;
        }
    }
}