Deltarune (Chapter 2) script viewer

btimer++;

if (btimer < 0)

    thrash.headangle = lerp(240, 360, 
scr_ease_inout
scr_ease_inout

function 
scr_ease_inout(arg0, arg1)
{
    if (arg1 < -3 || arg1 > 7)
        return arg0;
    if (arg1 == -3)
        return ease_inout_bounce(arg0, 0, 1, 1);
    else if (arg1 == -2)
        return ease_inout_elastic(arg0, 0, 1, 1);
    else if (arg1 == -1)
        return ease_inout_back(arg0, 0, 1, 1);
    else if (arg1 == 1)
        return -0.5 * cos((pi * arg0) - 1);
    else if (arg1 == 0)
        return arg0;
    arg0 *= 2;
    if (arg0 < 1)
    {
        return 0.5 * 
scr_ease_in(arg0, arg1);
    }
    else
    {
        arg0--;
        return 0.5 * (
scr_ease_out(arg0, arg1) + 1);
    }
}
(btimer / ((difficulty == 1) ? -10 : -13), 3));

else

    thrash.headangle = lerp(240, 600, 
scr_ease_out
scr_ease_out

function 
scr_ease_out(arg0, arg1)
{
    if (arg1 < -3 || arg1 > 7)
        return arg0;
    switch (arg1)
    {
        case -3:
            return ease_out_bounce(arg0, 0, 1, 1);
        case -2:
            return ease_out_elastic(arg0, 0, 1, 1);
        case -1:
            return ease_out_back(arg0, 0, 1, 1);
        case 0:
            return arg0;
        case 1:
            return sin(arg0 * 1.5707963267948966);
        case 2:
            return -arg0 * (arg0 - 2);
        case 6:
            return -power(2, -10 * arg0) + 1;
        case 7:
            arg0--;
            return sqrt(1 - (arg0 * arg0));
        default:
            arg0--;
            if (arg1 == 4)
            {
                return -1 * (power(arg0, arg1) - 1);
                break;
            }
            return power(arg0, arg1) + 1;
    }
}
(btimer / (difficulty ? 14 : 18), 5));

if (btimer == 2)

{

    d = 
scr_bullet_create
scr_bullet_create

function 
scr_bullet_create(arg0, arg1, arg2)
{
    var __newbullet = instance_create(arg0, arg1, arg2);
    __newbullet.damage = damage;
    __newbullet.target = target;
    if (variable_instance_exists(self, "element"))
        __newbullet.element = element;
    return __newbullet;
}
(thrash.headx, thrash.heady, obj_thrash_sword_bullet);

    d.speed = 8;

    d.gravity_direction = 0;

    d.gravity = 0.1;

    d.grazepoints = grazepoints;

    d.direction = random_range(160, 200);

}

if (btimer >= (difficulty ? 11 : 14))

{

    thrash.headangle = 240;

    btimer = 0;

}