/// <summary>
/// Initializes a new instance of the <see cref="Lane" /> class.
/// Precondition: maxNumVehicles greater than/= 0; originalSpeed greater than/= 0, laneLength greater than 0
/// Postcondition: LaneManager properties initialized
/// </summary>
/// <param name="maxNumVehicles">The maximum number of vehicles.</param>
/// <param name="vehicleType">Type of the vehicle.</param>
/// <param name="originalSpeed">The originalSpeed.</param>
/// <param name="direction">The direction.</param>
/// <param name="laneLength">Width of the window.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// maxNumVehicles - maxNumVehicles must be >= 0
/// or
/// originalSpeed - originalSpeed must be > 0
/// or
/// laneLength - laneLength must be > 0
/// </exception>
public Lane(int maxNumVehicles, VehicleTypes vehicleType, double originalSpeed, VehicleDirections direction,
double laneLength)
{
if (maxNumVehicles < 0)
{
throw new ArgumentOutOfRangeException(nameof(maxNumVehicles), "maxNumVehicles must be >= 0");
}
if (originalSpeed < 0)
{
throw new ArgumentOutOfRangeException(nameof(originalSpeed), "originalSpeed must be > 0");
}
if (laneLength <= 0)
{
throw new ArgumentOutOfRangeException(nameof(laneLength), "laneLength must be > 0");
}
this.maxNumVehicles = maxNumVehicles;
this.vehicleType = vehicleType;
this.originalSpeed = originalSpeed;
this.Direction = direction;
this.laneLength = laneLength;
this.addVehiclesToRoad(direction);
}
private void addVehiclesToRoad(VehicleDirections direction)
{
for (var i = 0; i < this.maxNumVehicles; i++)
{
this.vehicles.Add(new Vehicle(this.vehicleType, direction, this.originalSpeed));
var vehicle = this.vehicles[i];
vehicle.X = this.laneLength / this.maxNumVehicles * i - vehicle.Width;
if (direction == VehicleDirections.Right)
{
vehicle.Sprite.RenderTransformOrigin = new Point(0.5, 0.5);
vehicle.Sprite.RenderTransform = new ScaleTransform {
ScaleX = -1
};
}
}
this.ResetVehicleVisibility();
}
