/// <summary>
/// There are two components to the drawing. The first is the data model
/// which is represented by a single PlayFrame.
///
/// The second is a visual overlay indicating what the user is current
/// doing.
///
/// This function takes the frame and 'applies' the overlay to it by
/// creating a deep copy and then moving/adding items as required by
/// the overlay. For this to work we need to be able to uniquely
/// reference items in a playmodel by an id (as their refs change on a
/// deep copy).
/// </summary>
/// <param name="frame"></param>
/// <param name="overlay"></param>
/// <param name="converter"></param>
/// <returns></returns>
private static PlayFrame AdjustFrameForOverlay(PlayFrame frame,
VisualOverlay overlay,
PitchScreenCoordConverter converter)
{
// Take a deep copy of the frame so that we can adjust it based on what
// visual overlay is required.
PlayFrame adjustableFrame = frame.Clone();
PointF pitchCoords = converter.screenToPitchCoords(overlay.MouseLocation);
// First move any players who need to be.
if (overlay.SelectedPlayer != null)
{
Player movedPlayer = adjustableFrame.GetPlayerById(overlay.SelectedPlayer.UniqueId);
if (movedPlayer != null)
{
adjustableFrame.PlayerMovement[movedPlayer][0].FinalPosition = pitchCoords;
}
else
{
adjustableFrame.AddPlayer(overlay.SelectedPlayer, pitchCoords);
}
}
// Either a new cut is being drawn or a cut is being moved.
if (overlay.CutStart != null)
{
if (overlay.DrawingNewCut)
{
Player cuttingPlayer = adjustableFrame.GetPlayerById(overlay.CutStart.Player.UniqueId);
adjustableFrame.PlayerMovement[cuttingPlayer].Add(
new LinearMovement(pitchCoords,
100,
cuttingPlayer));
}
else
{
LinearMovement movedCut = adjustableFrame.GetCutById(overlay.CutStart.UniqueId);
adjustableFrame.ReplaceCut(movedCut, pitchCoords);
}
}
// Check if the user is drawing the disc movement at the moment.
if (overlay.DrawingDiscMovement)
{
adjustableFrame.DiscFrameMovement.AbsoluteFlightPath = pitchCoords;
adjustableFrame.DiscFrameMovement.HasMoved = true;
}
if (overlay.MovingDiscControlPoint)
{
adjustableFrame.DiscFrameMovement.ControlPoint = pitchCoords;
}
// If there is a trigger being moved then the selected trigger must have
// it's position updated.
if (overlay.SelectedTrigger != null)
{
CutRatio closestCutPoint = adjustableFrame.GetClosestCutPoint(pitchCoords,
sPitchLength,
overlay.SelectedTrigger.AffectedPlayer);
if (closestCutPoint != null)
{
Trigger adjustedTrigger = adjustableFrame.GetTriggerById(overlay.SelectedTrigger.UniqueId);
if (adjustedTrigger != null)
{
adjustedTrigger.CausingCutRatio = closestCutPoint;
}
}
}
else if (overlay.PlacingTrigger)
{
adjustableFrame.MaybeCreateTrigger(pitchCoords,
sPitchLength,
overlay.TriggerPlayer);
}
return adjustableFrame;
}
