timer++;
var progress = scr_ease_out(timer / growtime, 2);
radius = lerp(minradius, maxradius, progress);
if (timer == 1)
{
}
if (radius >= nextradius)
{
    nextradius += 15;
    if (nextradius == 30)
    {
        instance_destroy();
        exit;
    }
    var c = radius * 2 * pi;
    var count = floor(c / 60) + 1;
    var startoffset = random(360);
    for (i = 0; i <= count; i++)
    {
        var dir = startoffset + ((360 / count) * i) + random_range(-180 / count, 180 / count);
        var len = radius + random_range(-5, 5);
        var xx = lengthdir_x(len, dir);
        var yy = lengthdir_y(len, dir);
        d = instance_create(xx + x, yy + y, obj_animation_dx);
        d.sprite_index = choose(spr_viro_poison_effect_a, spr_viro_poison_effect_b);
        d.image_angle = irandom(3) * 90;
        d.image_blend = color;
        d.image_alpha = 1;
        d.image_xscale = 1;
        d.image_yscale = 1;
        d.image_speed = 1;
    }
}
if (timer >= growtime)
    instance_destroy();