public void simulate(Graphics G)
{
double tempdistance;
double bias; // 'for direction
int side;
//G->Clear(Color::Green);
drawnetwork(G);
for (int j = 0; j < cars.Count; j++)
{
if (simtime == global.LeaveForHomeTime)
{
plancarroute(j);
}
cars[j].move(G);
for (int k = 0; k < cars.Count; k++)
{
//car breaking code
if (k != j && cars[j].roadon == cars[k].roadon &&
cars[j].lane == cars[k].lane &&
cars[j].destination01 == cars[k].destination01)
{
tempdistance = utilities.distance(cars[j].location,
cars[j].roadon.points[cars[j].destination01]) -
utilities.distance(cars[k].location,
cars[k].roadon.points[cars[k].destination01]);
if ((tempdistance < (cars[j].breakdistance + global.CarLength * 2)) && (tempdistance >= 0))
{
if (cars[j].lane > 0 && cars[j].ontrajectory == false &&
cars[j].changinglanes == false)
{
cars[j].lanechange(-1);
}
if (cars[j].changinglanes == false)
{
if (cars[j].mode != carmode.Breaking)
{
cars[j].distancecontroller.init(cars[j].breakdistance,
tempdistance, cars[j].speed);
}
if ((tempdistance < global.CarLength * 2) && (cars[j].speed < 1.0 / 3600.0))
{
cars[j].speed = 0;
}
else
{
cars[j].speed = cars[j].distancecontroller.update(cars[j].breakdistance +
global.CarLength * 2, tempdistance);
}
//'If cars(j).speed < 0 Then cars(j).speed = 0
cars[j].mode = carmode.Breaking;
}
}
else if (cars[j].mode != carmode.Normal)
{
cars[j].speedcontroller.init(cars[j].preferredspeed,
cars[j].speed, cars[j].speed);
cars[j].mode = carmode.Normal;
}
}
}
//traffic light handling code
for (int k = 0; k < trafficlights.Count; k++)
{
if (trafficlights[k].roadon == cars[j].roadon)
{
if (cars[j].destination01 == trafficlights[k].pointnotpointedto)
{
tempdistance = utilities.distance(cars[j].location,
cars[j].roadon.points[cars[j].destination01]) -
utilities.distance(trafficlights[k].location,
cars[j].roadon.points[cars[j].destination01]);
if (tempdistance < (cars[j].breakdistance))
{
if (trafficlights[k].colour != trafficlightcolour.Green)
{
if (cars[j].mode != carmode.Breaking)
{
cars[j].distancecontroller.init(cars[j].breakdistance, tempdistance,
cars[j].speed);
}
if (tempdistance <= 0)
{
cars[j].speed = 0;
}
else
{
cars[j].speed =
cars[j].distancecontroller.update(cars[j].breakdistance,
tempdistance);
}
cars[j].mode = carmode.Breaking;
}
}
if ((trafficlights[k].colour == trafficlightcolour.Green) &&
(cars[j].mode != carmode.Normal))
{
cars[j].speedcontroller.init(cars[j].preferredspeed,
cars[j].speed, cars[j].speed);
cars[j].mode = carmode.Normal;
}
}
}
}
//stop sign handling code
for (int k = 0; k < stopsigns.Count; k++)
{
if (stopsigns[k].roadon == cars[j].roadon)
{
if (cars[j].destination01 == stopsigns[k].pointnotpointedto)
{
tempdistance = utilities.distance(cars[j].location,
cars[j].roadon.points[cars[j].destination01]) -
utilities.distance(stopsigns[k].location,
cars[j].roadon.points[cars[j].destination01]);
if (tempdistance < (cars[j].breakdistance))
{
if (cars[j].mode != carmode.Breaking)
{
cars[j].distancecontroller.init(cars[j].breakdistance, tempdistance,
cars[j].speed);
}
if (tempdistance <= 0)
{
cars[j].speed = 0;
}
else
{
cars[j].speed =
cars[j].distancecontroller.update(cars[j].breakdistance,
tempdistance);
}
cars[j].mode = carmode.Breaking;
}
if (safetodrive(j) &&
cars[j].mode != carmode.Normal)
{
cars[j].speedcontroller.init(cars[j].preferredspeed,
cars[j].speed, cars[j].speed);
cars[j].mode = carmode.Normal;
}
}
}
}
//code executed once the car has reached its destination
if (cars[j].atdestination)
{
cars[j].readlane();
if (cars[j].changinglanes)
{
cars[j].stoplanechange();
}
else if (cars[j].ontrajectory == false)
{
if (cars[j].decisiont == decisiontype.BuildingToBuilding)
{
if (cars[j].currentstepinroute < 0)
{
cars[j].currentstepinroute++;
calcmobilepointendofroad(cars[j].roadon, cars[j].destination01,
cars[j].roadon.nlanes - 1);
cars[j].newdestination(mobilepoint,
cars[j].roadon,
cars[j].destination01);
}
else if (cars[j].currentstepinroute < cars[j].route.Count - 1)
{
cars[j].currentstepinroute++;
cars[j].newroadn = cars[j].route[cars[j].currentstepinroute];
}
if (cars[j].currentstepinroute == cars[j].route.Count)
{
cars[j].currentstepinroute++;
cars[j].newdestination(cars[j].ultimatedest, cars[j].roadon,
cars[j].destination01);
}
}
else
{
//calcnewroadn(j); //index of car sent.
if (cars[j].cartobedeleted)
{
carstobedeleted = true;
}
}
if (cars[j].decisiont != decisiontype.BuildingToBuilding ||
(cars[j].decisiont == decisiontype.BuildingToBuilding &&
cars[j].currentstepinroute <= cars[j].route.Count - 1 &&
cars[j].currentstepinroute > 0))
{
calcmobilepointstartofroad(cars[j], roads[cars[j].newroadn],
roads[cars[j].newroadn].nlanes - 1);
if (cars[j].roadon.points[cars[j].destination01] ==
roads[cars[j].newroadn].points[0])
{
cars[j].newdestination(mobilepoint, roads[cars[j].newroadn], 1);
}
else
{
cars[j].newdestination(mobilepoint, roads[cars[j].newroadn], 0);
}
cars[j].ontrajectory = true;
}
}
else if (cars[j].ontrajectory == true) //there could be a bug here... was '=' in c++
{
if (cars[j].decisiont == decisiontype.BuildingToBuilding &&
cars[j].currentstepinroute == cars[j].route.Count - 1)
{
cars[j].currentstepinroute++;
mobilepoint.x = cars[j].penultimatedest.x;
mobilepoint.y = cars[j].penultimatedest.y;
}
else
{
calcmobilepointendofroad(cars[j].roadon, cars[j].destination01,
cars[j].roadon.nlanes - 1);
}
cars[j].newdestination(mobilepoint, cars[j].roadon,
cars[j].destination01);
cars[j].ontrajectory = false;
calcnewroadn(j); //index of car sent.
}
}
}
//delete cars that are to be deleted
if (carstobedeleted)
{
for (int j = 0; j < cars.Count; j++)
{
if (cars[j].cartobedeleted)
{
cars.RemoveAt(j);
}
}
carstobedeleted = false;
}
//update trafficlights
for (int j = 0; j < trafficlights.Count; j++)
{
trafficlights[j].update();
}
//update carinjectors
for (int j = 0; j < carinjectors.Count; j++)
{
/*car(double aspeed, double adt, point^ alocation,
* point^ adestination, road^ aroadon, int adestination01,
* double abreakacceleration);*/
carinjectors[j].update();
if (carinjectors[j].injectnow)
{
point startpoint = new point(0, 0);
startpoint.copyfrom(carinjectors[j].carstartlocation);
calcmobilepointendofroad(carinjectors[j].roadon,
carinjectors[j].cardestination01, carinjectors[j].carlane);
cars.Add(new car(global.CarSpeed + utilities.randnormv(global.CarSpeed3Sigma, r),
global.SampleT, startpoint, mobilepoint,
carinjectors[j].roadon, carinjectors[j].cardestination01,
global.CarBreakAcceleration));
// sim.cars.Add(new car(global.CarSpeed + utilities.randnormv(global.CarSpeed3Sigma, sim.r),
//global.SampleT,
// new point(0, 0), sim.roads[0].points[1], sim.roads[0], 1, global.CarBreakAcceleration));
}
}
simtime.tick();
}
public void newdestinationlane(point adestination, road aroadon, int adestination01, int adestinationlane)
{
}
public static double distance(point p1, point p2)
{
return(Math.Sqrt(Math.Pow(p1.x - p2.x, 2) + Math.Pow(p1.y - p2.y, 2)));
}