public override void ManipulationUpdate(Vector3 startGesturePosition, Vector3 currentGesturePosition, Vector3 startHeadOrigin, Vector3 startHeadRay, GestureInteractive.GestureManipulationState gestureState)
{
base.ManipulationUpdate(startGesturePosition, currentGesturePosition, startHeadOrigin, startHeadRay, gestureState);
// get gesture data for gesturing along the horizontal axis
GestureInteractiveData gestureData = GetGestureData(new Vector3(1, 0, 0), MaxGestureDistance, FlipDirecationOnCameraForward);
for (int i = 0; i < mCycleList.Count; ++i)
{
CycleData data = mCycleList[i];
// get the length of ICycle values to loop through
float length = data.Controller.GetLastIndex() + 1;
float incrament = MaxGestureDistance / length;
// get the delta of the current gesture
int offset = Mathf.RoundToInt(gestureData.Distance / incrament);
if (gestureState == GestureInteractive.GestureManipulationState.Start)
{
// set the starting index so we can add the delta to it
data.Index = data.Controller.Index;
mCycleList[i] = data;
}
// update the ICycle component
data.Controller.SetIndex(Mathf.Clamp(offset + data.Index, 0, data.Controller.GetLastIndex()));
}
}
/// <summary>
/// Returns a data set about the current gesture information compared to a specific vector.
/// For instance, to compare if the gesture is moving vertically or horizontally,
/// create two instances of this data set and compare the distance for each.
/// If the vertical percentage is greater than the horizontal percentage then the gesture is moving vertically.
/// </summary>
/// <param name="alignmentVector"></param>
/// <param name="maxDistance"></param>
/// <param name="flipDirecationOnCameraForward"></param>
/// <returns></returns>
public GestureInteractiveData GetGestureData(Vector3 alignmentVector, float maxDistance, bool flipDirecationOnCameraForward)
{
GestureInteractiveData data = new GestureInteractiveData(alignmentVector, maxDistance, flipDirecationOnCameraForward);
data.Direction = DirectionVector;
bool flipDirection = Vector3.Dot(Vector3.forward, StartHeadRay) < 0 && flipDirecationOnCameraForward;
if (flipDirection)
{
data.Direction = -data.Direction;
}
data.Distance = Vector3.Dot(data.Direction, alignmentVector);
data.Percentage = Mathf.Min(Mathf.Abs(data.Distance) / maxDistance, 1);
return(data);
}
