function scr_tb_pattern()
{
    var _pattern = room;
    if (argument_count > 0)
    {
        _pattern = argument[0];
        switch (_pattern)
        {
            default:
                break;
            case 0:
                var _spacing = 84;
                var _distance = 720;
                var _bullets = _distance div _spacing;
                for (var i = 0; i < (_bullets - 1); i++)
                {
                    var _h = 100 + (i * _spacing);
                    bullet = scr_tb_make(_h, 270 + (i * 40), 0, 1, false);
                    if (i == (_bullets - 1))
                        bullet.boostAmount = 16;
                }
                break;
            case 1:
                var _spacing = 84;
                var _distance = 1040;
                var _bullets = _distance div _spacing;
                for (var i = 0; i < (_bullets - 1); i++)
                {
                    var _h = 100 + (i * _spacing);
                    bullet = scr_tb_make(_h, 270 - (i * 40), 0, 1, false);
                    if (i == (_bullets - 1))
                        bullet.boostAmount = 16;
                }
                break;
            case 2:
                lasti = 6;
                bangle[0] = 270;
                bangle[1] = 230;
                bangle[2] = 190;
                bangle[3] = 230;
                bangle[4] = 270;
                bangle[5] = 310;
                bangle[6] = 350;
                for (var i = 0; i <= lasti; i++)
                {
                    for (j = 0; j < 4; j++)
                    {
                        bullet = scr_tb_make(240 + (i * 360) + (j * 40), bangle[i], 0, 1, false);
                        bullet.boostAmount = 12;
                    }
                }
                break;
            case 3:
                lasti = 5;
                bangle[0] = 270;
                bangle[1] = 230;
                bangle[2] = 190;
                bangle[3] = 230;
                bangle[4] = 270;
                bangle[5] = 310;
                for (var i = 0; i <= lasti; i++)
                {
                    for (j = 0; j < 3; j++)
                    {
                        bullet = scr_tb_make(140 + (i * 320) + (j * 40), bangle[i], 0, 1, false);
                        bullet.boostAmount = 12;
                    }
                }
                break;
            case 4:
                lasti = 2;
                bangle[0] = 270;
                bangle[1] = 310;
                bangle[2] = 270;
                for (var i = 0; i <= lasti; i++)
                {
                    for (j = 0; j < 4; j++)
                    {
                        bullet = scr_tb_make(140 + (i * 360) + (j * 40), bangle[i], 0, 1, false);
                        bullet.boostAmount = 12;
                    }
                }
                break;
            case 5:
                for (var i = 0; i < 5; i++)
                {
                    bullet = scr_tb_make(140 + (i * 40), 270, 0, 1, false);
                    bullet.boostAmount = 12;
                }
                break;
            case 52:
                for (var i = 0; i < 4; i++)
                {
                    bullet = scr_tb_make(120 + (i * 40), 270, 0, 1, false);
                    bullet.boostAmount = 12;
                }
                break;
            case 53:
                for (var i = 0; i < 3; i++)
                {
                    bullet = scr_tb_make(100 + (i * 40), 270, 0, 1, false);
                    bullet.boostAmount = 12;
                }
                break;
            case 6:
                riseSpeed = 3;
                riseSpeedBoostInitial = 8;
                riseSpeedBoost = riseSpeedBoostInitial;
                riseSpeedBoostMax = 10;
                riseSpeedBoostFriction = 0.15;
                lasti = 9;
                nowdir = 270;
                for (var i = 0; i <= lasti; i++)
                {
                    bullet = scr_tb_make(400 + (i * 140), nowdir, 0, 1, false);
                    bullet.boostAmount = 6;
                    if (i == lasti)
                        bullet.boostAmount = 10;
                    nowdir += choose(30, 30, 0, -30, -30);
                    if (nowdir <= 180)
                        nowdir = choose(180, 210, 210);
                    if (nowdir >= 360)
                        nowdir = choose(360, 330, 330);
                }
                break;
            case 7:
                riseSpeed = 3;
                riseSpeedBoostInitial = 6;
                riseSpeedBoost = riseSpeedBoostInitial;
                riseSpeedBoostMax = 9;
                riseSpeedBoostFriction = 0.25;
                lasti = 15;
                nowdir = 270;
                for (var i = 0; i <= lasti; i++)
                {
                    bullet = scr_tb_make(200 + (i * 120), nowdir, 0, 1, false);
                    bullet.boostAmount = 6;
                    if (i == lasti)
                        bullet.boostAmount = 10;
                    nowdir += choose(30, 30, 0, -30, -30);
                    if (nowdir <= 180)
                        nowdir = choose(180, 210, 210);
                    if (nowdir >= 360)
                        nowdir = choose(360, 330, 330);
                }
                break;
            case 8:
                riseSpeed = 3;
                riseSpeedBoostInitial = 8;
                riseSpeedBoost = riseSpeedBoostInitial;
                riseSpeedBoostMax = 10;
                riseSpeedBoostFriction = 0.15;
                lasti = 5;
                nowdir = 270;
                for (var i = 0; i <= lasti; i++)
                {
                    bullet = scr_tb_make(400 + (i * 180), nowdir, 0, 1, false);
                    bullet.boostAmount = 6;
                    if (i == lasti)
                        bullet.boostAmount = 10;
                    nowdir += choose(30, 30, 0, -30, -30);
                    if (nowdir <= 240)
                        nowdir = choose(240, 270);
                    if (nowdir >= 300)
                        nowdir = choose(300, 270);
                }
                scoreboardGoal = 6;
                break;
        }
    }
    else
    {
        switch (_pattern)
        {
            default:
                break;
            case 20:
                scr_tb_make(500, 90, 0, 3, false);
                scr_tb_make(600, 120, 0, 3, false);
                scr_tb_make(700, 150, 0, 3, false);
                scr_tb_make(800, 180, 0, 3, false);
                scr_tb_make_split(1400, 0, spinSpeed, 2, 0);
                scr_tb_make_split(1500, 30, spinSpeed, 2, 0);
                scr_tb_make_split(1600, 60, spinSpeed, 2, 0);
                scr_tb_make_split(1800, 0, spinSpeed, 2, 0);
                scr_tb_make_split(2000, 10, spinSpeed, 3, 0);
                scr_tb_make_split(2200, 20, spinSpeed, 4, 0);
                for (var i = 0; i < 10; i++)
                {
                    scr_tb_make(2300 + (i * 20), 230, 0, 0, false);
                    scr_tb_make(2300 + (i * 20), 270, 0, 1, false);
                    scr_tb_make(2300 + (i * 20), 310, 0, 0, false);
                }
                for (var i = 0; i < 64; i++)
                {
                    scr_tb_make(2700 + (i * 20), i * 10, 0, 0, true);
                    scr_tb_make(2700 + (i * 20), 180 + (i * 10), 0, 0, true);
                }
                break;
            case 89:
                var _spacing = 74;
                var _distance = 440;
                var _bullets = _distance div _spacing;
                for (var i = 0; i < _bullets; i++)
                {
                    var _h = 60 + (i * _spacing);
                    bullet = scr_tb_make(_h - 5, 350 + (i * 40), 0, 1, false);
                    bullet.boostAmount = 6;
                    if (i == (_bullets - 1))
                        bullet.boostAmount = 8;
                }
                break;
            case 175:
                var _angle = [30, 150, 270];
                lasti = 2;
                for (var i = 0; i <= lasti; i++)
                {
                    for (j = 0; j < 5; j++)
                        bullet = scr_tb_make(500 + (i * 280) + (j * 30), _angle[i], 0, 0, false);
                }
                scr_tb_make_split(1500, 90, 0, 2, 4);
                scr_tb_make_split(1800, 90, 0, 3, 4);
                scr_tb_make_split(2100, 0, 0, 4, 4);
                scr_tb_make_split(2400, 45, 0, 4, 4);
                break;
            case 178:
                scr_tb_make_split(650, 0, -3, 3, 0);
                scr_tb_make_split(840, 30, 3, 3, 0);
                scr_tb_make_split(1030, 60, -3, 3, 0);
                scr_tb_make_split(1220, 90, 5, 3, 0);
                scr_tb_make_split(1410, 90, -5, 3, 0);
                scr_tb_make_split(1600, 90, 5, 3, 0);
                scr_tb_make_split(1790, 90, 6, 3, 0);
                scr_tb_make_split(1980, 90, 6, 3, 0);
                scr_tb_make_split(2170, 90, 6, 3, 0);
                break;
            case 177:
                scr_tb_make_split(650, 90, 6, 3, 0);
                scr_tb_make_split(700, 90, 6, 3, 0);
                scr_tb_make_split(750, 90, 6, 3, 0);
                scr_tb_make_split(1000, 90, -6, 3, 0);
                scr_tb_make_split(1050, 90, -6, 3, 0);
                scr_tb_make_split(1100, 90, -6, 3, 0);
                scr_tb_make_split(1350, 90, 6, 3, 0);
                scr_tb_make_split(1400, 90, 6, 3, 0);
                scr_tb_make_split(1450, 90, 6, 3, 0);
                scr_tb_make_split(1500, 90, 6, 3, 3);
                break;
            case 176:
                scr_tb_make_split(640, 70, -3, 2, 4);
                scr_tb_make_split(900, 180, 3, 2, 4);
                scr_tb_make(1100, 0, -4, 3, false);
                scr_tb_make(1100, 180, -4, 3, false);
                scr_tb_make(1960, 0, 4, 3, false);
                scr_tb_make(1960, 120, 4, 3, false);
                scr_tb_make(1960, 240, 4, 3, false);
                break;
            case 185:
                var aa = 300;
                for (var ii = 0; ii < 10; ii++)
                    scr_tb_make_split(aa + 950 + (ii * 40), 90, 10, 3, 0);
                for (var ii = 0; ii < 10; ii++)
                    scr_tb_make_split(aa + 1600 + (ii * 40), 90, -10, 3, 0);
                var nn = 1500 + aa;
                scr_tb_make_crescent(750 + nn, 270, 20, 1, 0, 14);
                scr_tb_make_crescent(1000 + nn, 0, 20, 1, 0, 14);
                scr_tb_make_crescent(1250 + nn, 90, 20, 1, 0, 14);
                scr_tb_make_crescent(1500 + nn, 180, 20, 1, 0, 14);
                scr_tb_make_crescent(1750 + nn, 90, 20, 1, 0, 14);
                scr_tb_make_crescent(2000 + nn, 0, 20, 0, 0, 8);
                scr_tb_make_crescent(2200 + nn, 90, 20, 0, 0, 10);
                scr_tb_make_crescent(2400 + nn, 180, 20, 0, 0, 10);
                scr_tb_make_crescent(2600 + nn, 270, 20, 0, 0, 10);
                scr_tb_make_crescent(2800 + nn, 0, 20, 0, 0, 13);
                scr_tb_make_crescent(3000 + nn, 90, 20, 0, 0, 13);
                scr_tb_make_crescent(3200 + nn, 180, 20, 0, 0, 13);
                scr_tb_make_crescent(3400 + nn, 270, 20, 0, 0, 13);
                var mm = 5100 + aa;
                for (var ii = 0; ii < 40; ii++)
                    scr_tb_make_split((ii * 32) + mm, 90 + (10 * ii), 6.25, 3, 0);
        }
    }
}