tween.as

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//Created by Action Script Viewer - http://www.buraks.com/asv
    class mx.transitions.Tween
    {
        var obj, prop, begin, useSeconds, _listeners, addListener, prevTime, _time, looping, _duration, broadcastMessage, isPlaying, _fps, prevPos, _pos, change, _intervalID, _startTime;
        function Tween (obj, prop, func, begin, finish, duration, useSeconds) {
            mx.transitions.OnEnterFrameBeacon.init();
            if (!arguments.length) {
                return;
            }
            this.obj = obj;
            this.prop = prop;
            this.begin = begin;
            position = (begin);
            this.duration = (duration);
            this.useSeconds = useSeconds;
            if (func) {
                this.func = func;
            }
            this.finish = (finish);
            _listeners = [];
            this.addListener(this);
            this.start();
        }
        function set time(t) {
            prevTime = _time;
            if (t > duration) {
                if (looping) {
                    rewind(t - _duration);
                    update();
                    this.broadcastMessage("onMotionLooped", this);
                } else {
                    if (useSeconds) {
                        _time = _duration;
                        update();
                    }
                    this.stop();
                    this.broadcastMessage("onMotionFinished", this);
                 }
            } else if (t < 0) {
                rewind();
                update();
            } else {
                _time = t;
                update();
             }
            //return (time);
        }
        function get time() {
            return (_time);
        }
        function set duration(d) {
            _duration = (((d == null) || (d <= 0)) ? (_global.Infinity) : (d));
            //return (duration);
        }
        function get duration() {
            return (_duration);
        }
        function set FPS(fps) {
            var _local2 = isPlaying;
            stopEnterFrame();
            _fps = fps;
            if (_local2) {
                startEnterFrame();
            }
            //return (FPS);
        }
        function get FPS() {
            return (_fps);
        }
        function set position(p) {
            setPosition(p);
            //return (position);
        }
        function setPosition(p) {
            prevPos = _pos;
            obj[prop] = (_pos = p);
            this.broadcastMessage("onMotionChanged", this, _pos);
            updateAfterEvent();
        }
        function get position() {
            return (getPosition());
        }
        function getPosition(t) {
            if (t == undefined) {
                t = _time;
            }
            return (func(t, begin, change, _duration));
        }
        function set finish(f) {
            change = f - begin;
            //return (finish);
        }
        function get finish() {
            return (begin + change);
        }
        function continueTo(finish, duration) {
            begin = position;
            this.finish = (finish);
            if (duration != undefined) {
                this.duration = (duration);
            }
            this.start();
        }
        function yoyo() {
            continueTo(begin, time);
        }
        function startEnterFrame() {
            if (_fps == undefined) {
                _global["MovieClip"].addListener(this);
            } else {
                _intervalID = setInterval(this, "onEnterFrame", 1000 / _fps);
             }
            isPlaying = true;
        }
        function stopEnterFrame() {
            if (_fps == undefined) {
                _global["MovieClip"].removeListener(this);
            } else {
                clearInterval(_intervalID);
             }
            isPlaying = false;
        }
        function start() {
            rewind();
            startEnterFrame();
            this.broadcastMessage("onMotionStarted", this);
        }
        function stop() {
            stopEnterFrame();
            this.broadcastMessage("onMotionStopped", this);
        }
        function resume() {
            fixTime();
            startEnterFrame();
            this.broadcastMessage("onMotionResumed", this);
        }
        function rewind(t) {
            _time = ((t == undefined) ? 0 : (t));
            fixTime();
            update();
        }
        function fforward() {
            time = (_duration);
            fixTime();
        }
        function nextFrame() {
            if (useSeconds) {
                time = ((getTimer() - _startTime) / 1000);
            } else {
                time = (_time + 1);
             }
        }
        function onEnterFrame() {
            this.nextFrame();
        }
        function prevFrame() {
            if (!useSeconds) {
                time = (_time - 1);
            }
        }
        function toString() {
            return ("[Tween]");
        }
        function fixTime() {
            if (useSeconds) {
                _startTime = getTimer() - (_time * 1000);
            }
        }
        function update() {
            position = (getPosition(_time));
        }
        static var version = "1.1.0.52";
        static var __initBeacon = mx.transitions.OnEnterFrameBeacon.init();
        static var __initBroadcaster = mx.transitions.BroadcasterMX.initialize(mx.transitions.Tween.prototype, true);
        function func(t, b, c, d) {
            return (((c * t) / d) + b);
        }
    }