/// <summary>
/// we have three lanes per segments. the index should be 1,2,3. ONLY.
/// </summary>
/// <param name="lindex"></param>
public void ChangeLaneRandomly()
{
Dispatcher.Invoke((Action) delegate
{
int lanConut = CurrentLane.MyRoadSegment.LanesCount;
if (lanConut > 2)
{
RoadSegment rs = CurrentLane.MyRoadSegment;
LaneUi prevLane = CurrentLane;
LaneUi newlane = null;
if (prevLane.LaneDirection == Direction.N)
{
newlane = rs.Lanes[LaneIndex.RandomLaneIndex.North(rs.LanesCount)];
prevLane.LaneVehicleAndQueue.RemoveFromLane(this);
this.CurrentLane = newlane;
this.Margin = new Thickness(newlane.MyCenterLeft, this.Margin.Top, 0, 0);
this.SetVehicleDirection(Direction.N);
}
else if (prevLane.LaneDirection == Direction.S)
{
newlane = rs.Lanes[LaneIndex.RandomLaneIndex.South(rs.LanesCount)];
prevLane.LaneVehicleAndQueue.RemoveFromLane(this);
this.CurrentLane = newlane;
this.Margin = new Thickness(newlane.MyCenterLeft, this.Margin.Top, 0, 0);
this.SetVehicleDirection(Direction.S);
}
else if (prevLane.LaneDirection == Direction.E)
{
newlane = rs.Lanes[LaneIndex.RandomLaneIndex.East(rs.LanesCount)];
prevLane.LaneVehicleAndQueue.RemoveFromLane(this);
this.CurrentLane = newlane;
this.Margin = new Thickness(this.Margin.Left, newlane.MyCenterTop, 0, 0);
this.SetVehicleDirection(Direction.E);
}
else if (prevLane.LaneDirection == Direction.W)
{
newlane = rs.Lanes[LaneIndex.RandomLaneIndex.West(rs.LanesCount)];
prevLane.LaneVehicleAndQueue.RemoveFromLane(this);
this.CurrentLane = newlane;
this.Margin = new Thickness(this.Margin.Left, newlane.MyCenterTop, 0, 0);
this.SetVehicleDirection(Direction.W);
}
// change my speed to random.
double instanceSpeed = Computations.GetTimeIntervalInSecond(Computations.RandomSpeedkmh(CurrentLane.MyRoadSegment)); // slow the speed.
InstantaneousSpeed = instanceSpeed;
// display:
prevLane._MainWindow.Dispatcher.Invoke(new Action(() => prevLane.lbl_info.Text = prevLane.LaneVehicleAndQueue.CountInLane.ToString()), DispatcherPriority.Send);
}
});
}
double AllowToChangeLaneDistance = 25; // when the distance to the junction is x, then its not allowed to change the lane.
/// <summary>
/// move the vechile.
/// </summary>
public void StartMove()
{
Dispatcher.Invoke((Action) delegate
{
VehicleUi infrontVehicle = CurrentLane.LaneVehicleAndQueue.GetMyFrontVehicle(this); // get in the front.
showInfo(Settings.Default.DisplayInfoFlag); // show flage. // info which should be disply.
double headingDistance = RemianDistanceToHeadingJunction;
// to north:
if (VehicleDirection == Direction.N)
{
if (headingDistance > 0)
{
double marTop = this.Margin.Top;
marTop -= 1;
Dispatcher.Invoke(new Action(() => Margin = new Thickness(Margin.Left, marTop, 0, 0)), DispatcherPriority.Send);
// start decrease the speed according to the heading distance toward the jucntion.
if (headingDistance <= SlowDownDistance)
{
double instanceSpeed = Computations.GetTimeIntervalInSecond(headingDistance); // slow the speed.
InstantaneousSpeed = instanceSpeed;
}
// if has vechile in front: the behind vehicle should change the speed to or change the lane if possible.
if (infrontVehicle != null)
{
//: if still allowed to change the lane then go ahead. if not then the behind vechile should lower its speed.
if (headingDistance > AllowToChangeLaneDistance)
{
ChangeLaneRandomly();
}
else
{
// not allowd to change the lane.
// double fronVspeed = 5;
InstantaneousSpeed = infrontVehicle.InstantaneousSpeed * SpeedDisPercentage;
}
}
// change the lane randomnlly when v is in the middlel of the segment.
if (marTop < CurrentLane.MyRoadSegment.Midpoint)
{
double half = CurrentLane.MyRoadSegment.Height / 2;
if (headingDistance > half)
{
if (!ChangeLaneFlage)
{
ChangeLaneRandomly();
ChangeLaneFlage = true;
}
}
}
if (headingDistance < LineUpInJunctionDistance)
{
CurrentLane.LaneVehicleAndQueue.Enqueue(this); // add to the queue.
}
}
}
else if (VehicleDirection == Direction.S)
{
if (headingDistance > 0)
{
double marTop = this.Margin.Top;
marTop += 1;
// Margin = new Thickness(Margin.Left, marTop, 0, 0);
Dispatcher.Invoke(new Action(() => Margin = new Thickness(Margin.Left, marTop, 0, 0)), DispatcherPriority.Send);
if (headingDistance <= SlowDownDistance)
{
double instanceSpeed = Computations.GetTimeIntervalInSecond(headingDistance); // slow the speed.
InstantaneousSpeed = instanceSpeed;
}
if (infrontVehicle != null)
{
//: if still allowed to change the lane then go ahead. if not then the behind vechile should lower its speed.
if (headingDistance > AllowToChangeLaneDistance)
{
ChangeLaneRandomly();
}
else
{
InstantaneousSpeed = infrontVehicle.InstantaneousSpeed * SpeedDisPercentage;
}
}
if (marTop > CurrentLane.MyRoadSegment.Midpoint)
{
double half = CurrentLane.MyRoadSegment.Height / 2;
if (headingDistance > half)
{
if (!ChangeLaneFlage)
{
ChangeLaneRandomly();
ChangeLaneFlage = true;
}
}
}
if (headingDistance < LineUpInJunctionDistance)
{
CurrentLane.LaneVehicleAndQueue.Enqueue(this); // add to the queue.
}
}
}
else if (VehicleDirection == Direction.E)
{
if (headingDistance > 0)
{
double marLeft = Margin.Left;
double marTop = Margin.Top;
marLeft += 1;
// Margin = new Thickness(marLeft, marTop, 0, 0);
Dispatcher.Invoke(new Action(() => Margin = new Thickness(marLeft, marTop, 0, 0)), DispatcherPriority.Send);
if (headingDistance <= SlowDownDistance)
{
double instanceSpeed = Computations.GetTimeIntervalInSecond(headingDistance); // slow the speed.
InstantaneousSpeed = instanceSpeed;
}
if (infrontVehicle != null)
{
//: if still allowed to change the lane then go ahead. if not then the behind vechile should lower its speed.
if (headingDistance > AllowToChangeLaneDistance)
{
ChangeLaneRandomly();
}
else
{
InstantaneousSpeed = infrontVehicle.InstantaneousSpeed * SpeedDisPercentage;
}
}
if (marLeft > CurrentLane.MyRoadSegment.Midpoint)
{
double half = CurrentLane.MyRoadSegment.Width / 2;
if (headingDistance > half)
{
if (!ChangeLaneFlage)
{
ChangeLaneRandomly();
ChangeLaneFlage = true;
}
}
}
if (headingDistance < LineUpInJunctionDistance)
{
CurrentLane.LaneVehicleAndQueue.Enqueue(this); // add to the queue.
}
}
}
else if (VehicleDirection == Direction.W)
{
if (headingDistance > 0)
{
double marLeft = Margin.Left;
double marTop = Margin.Top;
marLeft -= 1;
// Margin = new Thickness(marLeft, marTop, 0, 0);
Dispatcher.Invoke(new Action(() => Margin = new Thickness(marLeft, marTop, 0, 0)), DispatcherPriority.Send);
if (headingDistance <= SlowDownDistance)
{
double instanceSpeed = Computations.GetTimeIntervalInSecond(headingDistance); // slow the speed.
InstantaneousSpeed = instanceSpeed;
}
if (infrontVehicle != null)
{
//: if still allowed to change the lane then go ahead. if not then the behind vechile should lower its speed.
if (headingDistance > AllowToChangeLaneDistance)
{
ChangeLaneRandomly();
}
else
{
InstantaneousSpeed = infrontVehicle.InstantaneousSpeed * SpeedDisPercentage;
}
}
if (marLeft < CurrentLane.MyRoadSegment.Midpoint)
{
double half = CurrentLane.MyRoadSegment.Width / 2;
if (headingDistance > half)
{
if (!ChangeLaneFlage)
{
ChangeLaneRandomly();
ChangeLaneFlage = true;
}
}
}
if (headingDistance < LineUpInJunctionDistance)
{
CurrentLane.LaneVehicleAndQueue.Enqueue(this); // add to the queue.
}
}
}
});
}
