public void refreshScreen(Grid copyOfGrid)
{
if (copyOfGrid == null)
return;
foreach (PictureBox pb in elements)
{
Controls.Remove(pb);
}
elements.Clear();
foreach (Car c in copyOfGrid.ListOfCars) //moves every existing car by 1 position
{
if (c != null)//&& c.HasExitedGrid==false && c.HasEnteredGrid==true)
{
drawCar(c);//draws lights
//Invoke(new drawCarHandler(drawCar), new object[] { c });//draws cars in case another thread called it
}
}
drawLights(copyOfGrid.Slots);//draws lights
//Invoke(new drawLightsHandler(drawLights), new object[] { copyOfGrid.Slots });//draws lights in case another thread called it
//MessageBox.Show("a");
Invalidate();
}
/// <summary>
/// Adds a crossing on a givven position on the grid.
/// </summary>
/// <param name="id">Indicates a position on the grid, for instance "A3".</param>
/// <param name="crossing">The class type of the crossing, either "crossing_1" or "crossing_2".</param>
/// <returns>Error message, or null if successfull.</returns>
public string addCrossing(string id, Type crossing)
{
if (_grid == null)
_grid = new Grid();
if (State == State.Stopped)
{
if (_grid.addCrossing(id, crossing))
{
_fileHandler.setUnsavedData();
return "";
}
return "Slot " + id + " is not available.";
}
else
{
return "Stop simulation before adding a crossing.";
}
}
/// <summary>
/// Saves data to file.
/// </summary>
/// <param name="grid">Grid object to serialize.</param>
/// <returns>If save was succesful.</returns>
public bool saveToFile(Grid grid)
{
FileStream fileStream = new FileStream(_path, FileMode.Append);
try
{
BinaryFormatter binaryFormater = new BinaryFormatter();
binaryFormater.Serialize(fileStream, grid);
_hasUnsavedData = false;
}
catch(Exception)
{
return false;
}
finally
{
fileStream.Close();
}
//TO DO: save the object grid onto file
return true;
}
/// <summary>
/// Saves data to file.
/// </summary>
/// <param name="grid">Grid object to serialize.</param>
/// <returns>If save was succesful.</returns>
public bool saveToFile(Grid grid)
{
FileStream fileStream=null;
try
{
fileStream = new FileStream(_path, FileMode.Create);
BinaryFormatter binaryFormater = new BinaryFormatter();
_hasUnsavedData = false;
binaryFormater.Serialize(fileStream, grid);
fileStream.Close();
//Grid objectToLoad = (Grid)binaryFormater.Deserialize(fileStream);
return true;
}
catch(Exception)
{
if (fileStream != null)
fileStream.Close();
return false;
}
}
/// <summary>
/// Starts simulation.
/// </summary>
/// <returns>Error message, or null if successfull.</returns>
public string startSimulation()
{
try
{
if (_state == Traffic_Simulator.State.Stopped)
{
_grid = new Grid();
_grid.Slots[0, 0] = new Crossing_1();
_grid.Slots[1, 0] = new Crossing_2();
_grid.Slots[0, 0].FlowW = 1;
_grid.Slots[0, 0].FlowS = 1;
_grid.Slots[0, 0].FlowN = 1;
_grid.Slots[0, 0].ProbWtoN = 40;
_grid.Slots[0, 0].ProbWtoS = 40;
_grid.Slots[0, 0].ProbWtoE = 40;
_grid.Slots[0, 0].ProbNtoW = 40;
_grid.Slots[0, 0].ProbNtoS = 40;
_grid.Slots[0, 0].ProbNtoE = 40;
_grid.Slots[0, 0].ProbStoN = 40;
_grid.Slots[0, 0].ProbStoW = 40;
_grid.Slots[0, 0].ProbStoE = 40;
_grid.Slots[0, 0].ID = "A0";
Crossing_2 c2 = (Crossing_2)_grid.Slots[1, 0];
TrafficLight tl;
tl._color = c2.LightPedestrian._color;
tl._greenLightTime = 20;
c2.LightPedestrian = tl;
tl._color = c2.LightNtoS._color;
tl._greenLightTime = 20;
c2.LightNtoS = tl;
tl._color = c2.LightWtoSE._color;
tl._greenLightTime = 20;
c2.LightWtoSE = tl;
_grid.Slots[1, 0].FlowS = 0;
_grid.Slots[1, 0].FlowE = 0;
_grid.Slots[1, 0].FlowN = 0;
_grid.Slots[1, 0].ProbEtoN = 40;
_grid.Slots[1, 0].ProbEtoS = 40;
_grid.Slots[1, 0].ProbEtoW = 40;
_grid.Slots[1, 0].ProbStoN = 40;
_grid.Slots[1, 0].ProbStoW = 40;
_grid.Slots[1, 0].ProbStoE = 40;
_grid.Slots[1, 0].ID = "A1";
_timer.Interval = _refreshRate;//sets and starts the timer
_timer.Elapsed += timerHasTriggered;
_timer.Start();
}
if (_state == Traffic_Simulator.State.Paused)
{
_timer.Start();
}
_state = State.Running;
return "";
}
catch
{
return "Couldn't start simulation";
}
}
/// <summary>
/// Loads a simulation file to the memory.
/// </summary>
/// <returns>Error message, or null if successfull.</returns>
public string load()
{
try
{
_fileHandler.Path = _gui.filePath(0); // shows load-file window
_grid = _fileHandler.loadFromFile();
return "Simulation has been loaded";
}
catch
{
return "Simulation not be loaded";
}
}
/// <summary>
/// Re-draws everything on the screen with updated values
/// </summary>
/// <param name="copyOfGrid">Grid from which the information will be extracted</param>
public void refreshScreen(Grid copyOfGrid)
{
if (copyOfGrid == null)
return;
_isReady = false;
foreach (PictureBox pb in _elements)
{
Controls.Remove(pb);
}
_elements.Clear();
if(_controller.State==State.Stopped)
drawCrossings(copyOfGrid.Slots);
if (Controller.State != State.Stopped)
{
drawLights(copyOfGrid.Slots);//draws lights
foreach (Car c in copyOfGrid.ListOfCars) //moves every existing car by 1 position
{
if (c != null)//&& c.HasExitedGrid==false && c.HasEnteredGrid==true)
{
drawCar(c);//draws lights
}
}
}
Invalidate();
_isReady = true;
}
