/**
* Makes all the works that must be done by the map in a step
*
* @return
*/
public void step() {
this.removeCollisions();
this.moveCars();
this.emitCars();
this.codify();
for (Car car : this.travelingCars) car.perceiveAndReason();
}
/** Executes step method for each car and adds them to their new position */
private void moveCars() {
this.carsToRemove.clear();
this.positionsToCheck.clear();
// Cars compute their new position
for (Car car : travelingCars) car.move();
// Move cars in the map
for (Car car : travelingCars) {
int x = car.getX();
int y = car.getY();
// Move car
if (!this.isPositionOutOfBounds(x, y)) {
map.moveTo(car, x, y);
this.addPositionToCheck(car.getPosition().getGridPoint());
}
// Car moved out of the map. Add for removal
else {
this.addCarToRemove(car);
}
}
// Remove cars out of bounds
for (Car car : this.carsToRemove) {
remove(car);
}
// Manage collisions
for (String posId : this.positionsToCheck.keySet()) {
GridPoint pos = this.positionsToCheck.get(posId);
int x = pos.getX();
int y = pos.getY();
if (this.getNumElements(x, y) > 1) {
Collision col = new Collision(x, y, map);
Iterable<TrafficElement> elements = map.getObjectsAt(x, y);
remove(elements);
context.add(col);
map.moveTo(col, x, y);
this.collisions.add(col);
}
}
}
/**
* @param id
* @return
*/
public Car getCar(long id) {
for (Car car : travelingCars) {
if (car.getId() == id) return car;
}
return null;
}
/**
* Adds a car to the simulation
*
* @param car
*/
private void add(Car car) {
travelingCars.add(car);
context.add(car);
map.moveTo(car, car.getX(), car.getY());
}
/** @param pos */
private void add(CarPosition pos) {
Car car = availableCars.pop();
car.init(pos);
add(car);
}
/**
* Adds a list of norms to all the cars in the simulation
*
* @param norms
*/
public void broadcastRemoveNorm(Norm norm) {
for (Car c : allCars) {
c.getReasoner().removeNorm(norm);
}
}
/**
* Adds a list of norms to all the cars in the simulation
*
* @param norms
*/
public void broadcastAddNorm(Norm norm) {
for (Car c : allCars) {
c.getReasoner().addNorm(norm);
}
}