//the DataLinker calls this method to forward a new road command from SS3
//it returns true if the command is valid
/// <summary>
/// This method gets called by the DataLinker and receives a new RoadCommand from SS3.
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
public static bool ReceiveRoadCommand(RoadInstruction command)
{
if (command != null)
{
StreetSegment road = roads.Find(x => x.ID == command.Id); //check, if there is a road with this id
if (road != null) //road should be valid
{
ExecuteRoadCommand(command);
return(true);
}
}
return(false);
}
//this method executes the road command, i.e. adapts states and speed limits
//it returns true, if the execution has been successful
private static bool ExecuteRoadCommand(RoadInstruction command)
{
bool state = roads.Find(x => x.ID == command.Id).IsUsable; //store current state of the road
bool success = false;
if (command.Usable) //state should be changed
{
success = AdaptRoadState(command.Id, command.Usable);
if (!success)
{
return(success);
} //return, if adapting road state was not successfull
}
if (command.Speedlimit > 0)
{
success = AdaptSpeedLimit(command.Id, command.Speedlimit);
if (command.Usable && !success)
{
AdaptRoadState(command.Id, state);
} //if state has been adapted successfully, but speed limit not --> undo changes
}
return(success);
}
/// <summary>
/// This method receives a RoadInstruction from SS3 and forwards it to SS1.
/// </summary>
/// <param name="e">The new RoadInstruction.</param>
internal static void CallReceiveRoadCommand(RoadInstruction e)
{
ReceiveRoadCommand?.Invoke(null, e);
}
public static void SendRoadInstruction(RoadInstruction e)
{
SS1.CallReceiveRoadCommand(e);
}
private void DataLinker_SS1_ReceiveRoadCommand(object sender, RoadInstruction e)
{
ReceiveRoadCommand(e);
}
