public void draw()
{
canvas.Children.Clear();
piePieces.Clear();
if (turnState == null || !turnState.inTurn)
{
return;
}
double initialHeading = (double)turnState.directionInitial.heading;
double targetTurnAngle = (double)turnState.directionDesired.heading - initialHeading;
double currentTurnAngle = (double)turnState.directionCurrent.heading - initialHeading;
//double targetTurnAngle = -240.0d;
//double currentTurnAngle = -20.0d;
if (Math.Abs(targetTurnAngle) > 1.0d)
{
double halfWidth = canvas.ActualWidth / 2.0d;
double halfHeight = canvas.ActualHeight / 2.0d;
double radius = (halfWidth + halfHeight) / 2.0d;
double innerRadius = radius / 2.0d;
double pushOut = 5.0d;
// add the pie pieces
bool targetTurnNegative = targetTurnAngle < 0.0d;
bool currentTurnNegative = currentTurnAngle < 0.0d;
PiePiece pieceTargetTurn = new PiePiece()
{
Radius = radius,
InnerRadius = innerRadius,
CentreX = halfWidth,
CentreY = halfHeight,
PushOut = pushOut,
WedgeAngle = Math.Abs(targetTurnAngle),
PieceValue = Math.Round(targetTurnAngle),
RotationAngle = (targetTurnNegative ? targetTurnAngle : 0.0d) + initialHeading,
Fill = Brushes.Yellow,
Opacity = 0.4d,
Tag = string.Format("Target turn to {0}", targetTurnAngle),
ToolTip = new ToolTip()
};
pieceTargetTurn.ToolTipOpening += new ToolTipEventHandler(PiePieceToolTipOpening);
piePieces.Add(pieceTargetTurn);
canvas.Children.Add(pieceTargetTurn);
PiePiece pieceCurrentTurn = new PiePiece()
{
Radius = radius,
InnerRadius = innerRadius,
CentreX = halfWidth,
CentreY = halfHeight,
PushOut = 0,
WedgeAngle = Math.Abs(currentTurnAngle),
PieceValue = Math.Round(currentTurnAngle),
RotationAngle = (currentTurnNegative ? currentTurnAngle : 0.0d) + initialHeading,
Fill = Brushes.Red,
Opacity = 0.6d,
Tag = string.Format("Turned to {0}", currentTurnAngle),
ToolTip = new ToolTip()
};
pieceCurrentTurn.ToolTipOpening += new ToolTipEventHandler(PiePieceToolTipOpening);
piePieces.Add(pieceCurrentTurn);
canvas.Children.Add(pieceCurrentTurn);
}
}
