void Update()
{
if (Input.touchCount == 2)
{
Touch touch1 = Input.touches[0];
Touch touch2 = Input.touches[1];
Vector2 pos1 = touch1.position;
Vector2 pos2 = touch2.position;
Vector2 delta1 = pos1 - lastTouchPos1;
Vector2 delta2 = pos2 - lastTouchPos2;
if (firstTouch)
{
firstTouch = false;
//for rotate
initPos1 = pos1;
initPos2 = pos2;
initGradient = (pos1 - pos2).normalized;
float curX = pos1.x - pos2.x;
float curY = pos1.y - pos2.y;
float prevAngle = Gesture.VectorToAngle(new Vector2(curX, curY));
//for tap
tapStartTime = Time.time;
startPos = (pos1 + pos2) / 2;
longTap = false;
posShifted = false;
}
else
{
if (Vector2.Distance(Input.mousePosition, startPos) > 5)
{
posShifted = true;
}
if (Time.time - tapStartTime > minChargeTime)
{
charged = true;
float chargeValue = Mathf.Min(1, (Time.time - tapStartTime) / maxChargeTime);
ChargedInfo cInfo = new ChargedInfo((pos1 + pos2) / 2, chargeValue);
Gesture.DFCharging(cInfo);
}
if (!longTap && !posShifted && Time.time - tapStartTime > 1f)
{
longTap = true;
Gesture.DFLongTap((pos1 + pos2) / 2);
}
}
if (touch1.phase == TouchPhase.Moved && touch2.phase == TouchPhase.Moved)
{
float dot = Vector2.Dot(delta1, delta2);
if (dot < 0)
{
Vector2 grad1 = (pos1 - initPos1).normalized;
Vector2 grad2 = (pos2 - initPos2).normalized;
float dot1 = Vector2.Dot(grad1, initGradient);
float dot2 = Vector2.Dot(grad2, initGradient);
//rotate
if (dot1 < 0.7f && dot2 < 0.7f)
{
float curX = pos1.x - pos2.x;
float curY = pos1.y - pos2.y;
float curAngle = Gesture.VectorToAngle(new Vector2(curX, curY));
float val = Mathf.DeltaAngle(curAngle, prevAngle);
if (Mathf.Abs(val) > 0)
{
AddRotVal(val);
}
float valueAvg = GetAverageValue();
Gesture.Rotate(valueAvg);
prevAngle = curAngle;
}
//pinch
else
{
Vector2 curDist = pos1 - pos2;
Vector2 prevDist = (pos1 - delta1) - (pos2 - delta2);
float pinch = prevDist.magnitude - curDist.magnitude;
Gesture.Pinch(pinch);
}
}
//drag
if (dot > 2)
{
dragging = true;
Vector2 posAvg = (pos1 + pos2) / 2;
Vector2 dir = (delta1 + delta2) / 2;
DragInfo dragInfo = new DragInfo(-1, posAvg, dir);
Gesture.DualFingerDragging(dragInfo);
}
}
lastTouchPos1 = pos1;
lastTouchPos2 = pos2;
}
else if (Input.touchCount == 0)
{
//~ if(!firstTouch){
//~ firstTouch=true;
//~ }
if (!firstTouch)
{
firstTouch = true;
//for tap
if (Time.time - tapStartTime < shortTapTime)
{
if (Time.time - lastShortTapTime < doubleTapTime)
{
if (dTapState == _DTapState.Clear)
{
dTapState = _DTapState.Tap1;
}
else if (dTapState == _DTapState.Tap1)
{
if (Vector2.Distance(lastTouchPos1, lastShortTapPos) < maxDTapPosSpacing)
{
dTapState = _DTapState.Clear;
Gesture.DFDoubleTap((startPos + lastShortTapPos) / 2);
}
}
}
else
{
dTapState = _DTapState.Tap1;
}
lastShortTapTime = Time.time;
lastShortTapPos = (lastTouchPos1 + lastTouchPos2) / 2;
Gesture.DFShortTap(startPos);
}
if (dragging)
{
dragging = false;
Gesture.DualFingerDraggingEnd((lastTouchPos1 + lastTouchPos2) / 2);
}
if (charged)
{
charged = false;
float chargeValue = Mathf.Min(1, (Time.time - tapStartTime) / maxChargeTime);
ChargedInfo cInfo = new ChargedInfo((lastTouchPos1 + lastTouchPos2) / 2, chargeValue);
Gesture.DFChargeEnd(cInfo);
}
}
}
}