maxy = bbox_bottom - obj_mainchara.y;
if (col == 0)
    draw_sprite(sprite_index, image_index, x, y);
if (col == 1)
    draw_sprite(sprite_index, image_index, x, y - 16);
if (col == 2)
    draw_sprite(sprite_index, image_index, x, y - 25);
if (col > 2)
    draw_sprite(sprite_index, image_index, x, y - 30);