private bool shouldBegin(Gesture gesture)
{
bool result = true;
if (GlobalGestureDelegate != null) result = GlobalGestureDelegate.ShouldBegin(gesture);
return result && gesture.ShouldBegin();
}
private bool recognizeGestureIfNotPrevented(Gesture gesture)
{
if (!gesture.ShouldBegin()) return false;
bool canRecognize = true;
List<Gesture> gesturesToFail = new List<Gesture>(10);
var gestures = getHierarchyContaining(gesture.transform);
foreach (var otherGesture in gestures)
{
if (gesture == otherGesture) continue;
if (!gestureIsActive(otherGesture)) continue;
if (otherGesture.State == Gesture.GestureState.Began || otherGesture.State == Gesture.GestureState.Changed)
{
if (otherGesture.CanPreventGesture(gesture))
{
canRecognize = false;
break;
}
}
else
{
if (gesture.CanPreventGesture(otherGesture))
{
gesturesToFail.Add(otherGesture);
}
}
}
if (canRecognize)
{
foreach (var otherGesture in gesturesToFail)
{
failGesture(otherGesture);
}
}
return canRecognize;
}
private bool gestureCanRecognize(Gesture gesture)
{
if (!gesture.ShouldBegin()) return false;
var gestures = getHierarchyContaining(gesture.transform);
foreach (var otherGesture in gestures)
{
if (gesture == otherGesture) continue;
if (!gestureIsActive(otherGesture)) continue;
if ((otherGesture.State == Gesture.GestureState.Began || otherGesture.State == Gesture.GestureState.Changed) &&
otherGesture.CanPreventGesture(gesture))
{
return false;
}
}
return true;
}
private bool recognizeGestureIfNotPrevented(Gesture gesture)
{
if (!gesture.ShouldBegin()) return false;
var gesturesToFail = gestureListPool.Get();
var gesturesInHierarchy = gestureListPool.Get();
bool canRecognize = true;
getHierarchyContaining(gesture.transform, gesturesInHierarchy);
var count = gesturesInHierarchy.Count;
for (var i = 0; i < count; i++)
{
var otherGesture = gesturesInHierarchy[i];
if (gesture == otherGesture) continue;
if (!gestureIsActive(otherGesture)) continue;
if (otherGesture.State == Gesture.GestureState.Began || otherGesture.State == Gesture.GestureState.Changed)
{
if (otherGesture.CanPreventGesture(gesture))
{
canRecognize = false;
break;
}
}
else
{
if (gesture.CanPreventGesture(otherGesture))
{
gesturesToFail.Add(otherGesture);
}
}
}
if (canRecognize)
{
count = gesturesToFail.Count;
for (var i = 0; i < count; i++)
{
failGesture(gesturesToFail[i]);
}
}
gestureListPool.Release(gesturesToFail);
gestureListPool.Release(gesturesInHierarchy);
return canRecognize;
}