// Start is called before the first frame update
void Start()
{
Input.multiTouchEnabled = true;
// m_Cam = GameObject.FindGameObjectWithTag("MainCamera"); ;
// _camCon = m_Cam.GetComponent<CameraController>();
_dir = eSlideDirection.NODIRECTION;
}
void DetermineAlpha()
{
float dist = 0;
float perc = 0;
//determine wether themenu is sliding in or out to determine which axis to use for alpha testing
eSlideDirection slideDirection = (slideState == eSlideState.Opening) ? slideInDirection : slideOutDirection;
switch (slideDirection)
{
case eSlideDirection.Up:
case eSlideDirection.Down:
dist = targetPos.y - curPos.y;
break;
case eSlideDirection.Right:
case eSlideDirection.Left:
dist = targetPos.x - curPos.x;
break;
}
//speed up fading so the menu fades in half the tranvel distance
if (dist < 0)
{
dist *= -1;
}
if (dist != 0)
{
dist *= 2;
}
//test the difference between current pos and target location
//target location being the position the menu should display at
//or the position right next to it, offset by exactly the size of the menu
//return the distance as a percentage and set alpha to that percentage
switch (slideDirection)
{
case eSlideDirection.Up:
case eSlideDirection.Down:
perc = 1 - (dist / targetPos.height);
break;
case eSlideDirection.Right:
case eSlideDirection.Left:
perc = 1 - (dist / targetPos.width);
break;
}
if (perc > 1)
{
perc = 1;
}
if (perc < 0)
{
perc = 0;
}
alpha = perc;
}
// Update is called once per frame
void Update()
{
if (Input.touchCount < 1)
{
return;
}
switch (Input.GetTouch(0).phase)
{
case TouchPhase.Began:
_touchPointStart = Input.GetTouch(0).position;
break;
case TouchPhase.Moved:
var deltaPos = Input.GetTouch(0).deltaPosition;
var fingerPos = Input.GetTouch(0).position;
switch (_dir)
{
case eSlideDirection.NODIRECTION:
if (Mathf.Abs(deltaPos.x) >= Mathf.Abs(deltaPos.y))
{
_dir = eSlideDirection.HORIZONTAL;
}
else
{
_dir = eSlideDirection.VERTICAL;
}
break;
case eSlideDirection.HORIZONTAL:
fingerPos.y = _touchPointStart.y;
break;
case eSlideDirection.VERTICAL:
fingerPos.x = _touchPointStart.x;
break;
}
var fingerPosVP = Camera.main.ScreenToViewportPoint(fingerPos);
var touchBeganVP = Camera.main.ScreenToViewportPoint(_touchPointStart);
_UIManager.MovePage(touchBeganVP, fingerPosVP);
break;
case TouchPhase.Ended:
_touchPointEnd = Input.GetTouch(0).position;
switch (_dir)
{
case eSlideDirection.NODIRECTION:
break;
case eSlideDirection.HORIZONTAL:
_moveDist = _touchPointEnd.x - _touchPointStart.x;
_UIManager.SlidePage(new Vector2(_moveDist, 0));
break;
case eSlideDirection.VERTICAL:
_moveDist = _touchPointEnd.y - _touchPointStart.y;
_UIManager.SlidePage(new Vector2(0, _moveDist));
break;
}
_dir = eSlideDirection.NODIRECTION;
break;
}
}