function scr_ease_in(arg0, arg1)
{
    if (arg1 < -3 || arg1 > 7)
        return arg0;
    switch (arg1)
    {
        case -3:
            return ease_in_bounce(arg0, 0, 1, 1);
        case -2:
            return ease_in_elastic(arg0, 0, 1, 1);
        case -1:
            var _s = 1.70158;
            return arg0 * arg0 * (((_s + 1) * arg0) - _s);
        case 0:
            return arg0;
        case 1:
            return -cos(arg0 * 1.5707963267948966) + 1;
        case 6:
            return power(2, 10 * (arg0 - 1));
        case 7:
            return -(sqrt(1 - sqr(arg0)) - 1);
        default:
            return power(arg0, arg1);
    }
}