Deltarune (Chapter 4) script viewer

star_anim += star_anim_speed;

bg_speed -= bg_speed_max;

bg_speed_y += bg_speed_y_max;

if (bg_speed < -640)

    bg_speed += 640;

if (bg_speed_y > -480)

    bg_speed_y -= 480;

draw_set_alpha(1);

scr_draw_set_mask(true, true);

ossafe_fill_rectangle(x, y, (x + (image_xscale * 20)) - 1, (y + (image_yscale * 20)) - 1);

scr_draw_in_mask_begin();

scr_draw_sprite_tiled_area
scr_draw_sprite_tiled_area

function 
scr_draw_sprite_tiled_area()
{
    var sprite = argument[0];
    var subimg = argument[1];
    var xx = argument[2];
    var yy = argument[3];
    var x1 = argument[4];
    var y1 = argument[5];
    var x2 = argument[6];
    var y2 = argument[7];
    var xscale = argument[8];
    var yscale = argument[9];
    var col = (argument_count > 10) ? argument[10] : 16777215;
    var alpha = (argument_count > 11) ? argument[11] : 1;
    var sw = sprite_get_width(sprite) * xscale;
    var sh = sprite_get_height(sprite) * yscale;
    var i = x1 - ((x1 % sw) - (xx % sw)) - (sw * ((x1 % sw) < (xx % sw)));
    var j = y1 - ((y1 % sh) - (yy % sh)) - (sh * ((y1 % sh) < (yy % sh)));
    var jj = j;
    while (i <= x2)
    {
        while (j <= y2)
        {
            var left;
            if (i <= x1)
                left = x1 - i;
            else
                left = 0;
            var X = i + left;
            var top;
            if (j <= y1)
                top = y1 - j;
            else
                top = 0;
            var Y = j + top;
            var width;
            if (x2 <= (i + sw))
                width = ((sw - ((i + sw) - x2)) + 1) - left;
            else
                width = sw - left;
            var height;
            if (y2 <= (j + sh))
                height = ((sh - ((j + sh) - y2)) + 1) - top;
            else
                height = sh - top;
            draw_sprite_part_ext(sprite, subimg, left, top, width, height, X, Y, xscale, yscale, col, alpha);
            j += sh;
        }
        j = jj;
        i += sw;
    }
    return 0;
}
(spr_dw_tv_starbgtile, star_anim, camerax() + bg_speed, cameray() + bg_speed_y, camerax() + bg_speed, cameray() + bg_speed_y, camerax() + view_wport[0], cameray() + room_height, 2, 2, c_white, 1);

scr_draw_in_mask_end();