/*#region INetworkObserver
public void MessageReceived(String message) {
if (message.Equals("back")) {
Back();
}
}
#endregion */
/// <summary>
/// Registers a gesture workspace for this state machine. The
/// hand is only considered to be in the correct pose if it
/// is within this area. Workspace will be adjusted since,
/// unlike the default workspace, we want interaction to take
/// place a bit further back from the phone. Otherwise the user
/// would have to reach too far and this also poses finger
/// tracking problems.
/// </summary>
public new void RegisterWorkspace(GestureSpace workspace)
{
Rectangle space = workspace.GetRectangle();
int bottom = GestureSpace.Height / 2;
int top = bottom - GestureSpace.Height;
GestureSpace adjustedSpace = new GestureSpace(space.Left, top, space.Right, bottom);
base.RegisterWorkspace(adjustedSpace);
}
/// <summary>
/// Check for group switches based on the
/// position of the given hand. Returns true
/// if a group switch has taken place.
/// </summary>
/* private bool ProcessGroups(Hand hand)
{
int midZ = base.workspace.MidZ();
float palmZ = hand.PalmPosition.z;
// Determine which group we're in
int g = (palmZ <= midZ)
? 1 : 2;
if (activeSet.HasGroups)
{
if (activeGroup != g)
{
GroupLeave(activeGroup);
GroupEnter(g);
return true;
}
}
return false;
}*/
private void ShowEdges(GestureSpace space, int group, Hand hand, List<Finger> fingers)
{
if (hand == null || fingers == null || fingers.Count == 0)
return;
Vector avgPos = AveragePos(fingers);
int midZ = space.MidZ();
int z = (int) hand.PalmPosition.z;
int edgeToShow = 0;
if (z > midZ - EDGE_THRESHOLD && group == 1)
{
edgeToShow = 4;
}
else if (z < midZ + EDGE_THRESHOLD && group == 2)
{
edgeToShow = 2;
}
foreach (IParentObserver observer in observers)
{
if (observer is ICountObserver)
{
ICountObserver ic = (ICountObserver)observer;
if (workspace != null)
{
ic.CursorUpdate(workspace.Normalise(avgPos), fingers.Count, edgeToShow);
}
}
}
}
// private int activeGroup;
public CountDetector(LeapInterface leap, GestureSpace space)
{
// Initialise state machines
state = CountState.Idle;
selectionState = CountSelectionState.Idle;
activeHandId = -1;
discardedFrames = 0;
ignoredFrames = 0;
this.leap = leap;
/* // Initialise groups and ROIs
activeGroup = 0; */
// Initialise list of observers
observers = new List<IParentObserver>();
// Initialise selection metadata
countStart = DateTime.Now;
// Register gesture workspace
this.RegisterWorkspace(space);
// Register this gesture detector for frame updates and keep reference of the LeapMotion controller
this.leap.RegisterFrameListener(this);
GestureDetector.DEBUG = false;
}
