iPhoneAnalogStick

var touchZoneWidth : int = 60;
var touchZoneHeight : int = 60;
private var leftStickDown : boolean = false;
private var rightStickDown : boolean = false;
private var leftStickBounds : Rect;
private var leftStickCenter : Vector2;
private var leftStickTouchId : int = -1;
private var rightStickTouchId : int = -1;

var fpsWalker : FPSWalkeriPhone;
var look1 : MouseLookiPhone;
var look2 : MouseLookiPhone;

function Start ()
{
    // let's be in widescreen mode
    Screen.orientation = ScreenOrientation.LandscapeLeft;

    // set the bounds at start, so we can see these in the inspector
    leftStickBounds = Rect(0, 0, touchZoneWidth, touchZoneHeight);
    leftStickCenter = Vector2 (touchZoneWidth * 0.5, touchZoneHeight * 0.5);
}

function Update (){
    // pull information out of each touch event
    // empty out the touch event array, set it to the length of the number of touches
    var count = Input.touchCount;
    for (var i : int = 0; i < count; i++)
    {
        // cram the touch event into the array
        var touch : Touch = Input.GetTouch(i);

        // check the phase FIRST
        if (touch.phase == TouchPhase.Began)
        {
            // check the actual point of the touch
            // if it's inside either button, store the position as the center



            // only perform this check if the left stick isn't already pressed
            if (!leftStickDown)
            {
                // check if we pressed down on the left stick
                leftStickDown = IsThumbInsideBounds(touch.position, leftStickBounds);
                // if we did, don't even check the right stick
                if (leftStickDown)
                {
                    leftStickTouchId = touch.fingerId;
                    continue;
                }
            }

            // only perform this check if the right stick isn't already pressed
            if (!rightStickDown)
            {
                // we consider whole screen except the left-stick area as a right-stick
                rightStickDown = !IsThumbInsideBounds(touch.position, leftStickBounds);
                if (rightStickDown)
                {
                    rightStickTouchId = touch.fingerId;
                    continue;
                }
            }
        }
        else if (touch.phase == TouchPhase.Moved)
        {
            // figure out if we're looking at the left thumb
            if (leftStickDown && leftStickTouchId == touch.fingerId)
            {
                var lDiff : Vector2 = touch.position - leftStickCenter;
                var lDiff3 : Vector3 = Vector3 (lDiff.x, 0, lDiff.y);

                // make sure direction is inside unit sphere
                if (lDiff3.sqrMagnitude > 1)
                    lDiff3.Normalize();
                fpsWalker.SetMoveDirection (lDiff3);
            }

            // figure out if we're looking at the right thumb
            if (rightStickDown && rightStickTouchId == touch.fingerId)
            {
                //look1.SetInput (touch.deltaPosition);
                //look2.SetInput (touch.deltaPosition);
            }
        }
        else if (touch.phase == TouchPhase.Stationary)
        {
            // stop the right stick from rotating if it's stationary
            if (rightStickDown && rightStickTouchId == touch.fingerId)
            {
                //look1.SetInput (Vector2.zero);
                //look2.SetInput (Vector2.zero);
            }
        }
        else if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled)
        {
            // release left stick
            if (leftStickDown && leftStickTouchId == touch.fingerId)
            {
                leftStickDown = false;
                fpsWalker.SetMoveDirection (Vector3.zero);
                leftStickTouchId = -1;
            }

            // release 2nd finger
            if (rightStickDown && rightStickTouchId == touch.fingerId)
            {
                rightStickDown = false;
                //look1.SetInput (Vector2.zero);
                //look2.SetInput (Vector2.zero);
                rightStickTouchId = -1;
            }
        }
    }


    //look1.CustomUpdate();
    //look2.CustomUpdate();
    fpsWalker.CustomUpdate();
}


function IsThumbInsideBounds (touchPosition : Vector2, analogBounds : Rect)
{
    return (analogBounds.Contains (touchPosition));
}