function scr_markify_caterpillar_ch1()
{
    s = 4378473;
    r = 4387437;
    for (i = 0; i < 2; i += 1)
    {
        if (instance_exists(global.cinstance[i]))
        {
            if (global.char[i + 1] == 2)
            {
                s = scr_dark_marker_ch1(global.cinstance[i].x, global.cinstance[i].y, global.cinstance[i].sprite_index);
                with (global.cinstance[i])
                    visible = 0;
            }
            if (global.char[i + 1] == 3)
            {
                r = scr_dark_marker_ch1(global.cinstance[i].x, global.cinstance[i].y, global.cinstance[i].sprite_index);
                with (global.cinstance[i])
                    visible = 0;
            }
        }
    }
}