public void moveTowards(GridPoint pt) {
// only move if we are not already in this grid location
if (!pt.equals(grid.getLocation(this))) {
NdPoint myPoint = space.getLocation(this);
NdPoint otherPoint = new NdPoint(pt.getX(), pt.getY());
double angle = SpatialMath.calcAngleFor2DMovement(space, myPoint, otherPoint);
space.moveByVector(this, 1, angle, 0);
myPoint = space.getLocation(this);
grid.moveTo(this, (int) myPoint.getX(), (int) myPoint.getY());
moved = true;
}
}
/**
* Returns true if a grid point of the map is free (with no car)
*
* @param p
* @return
*/
private boolean isFree(GridPoint p) {
int count = 0;
Iterable<TrafficElement> elements = map.getObjectsAt(p.getX(), p.getY());
for (TrafficElement elem : elements) {
count++;
}
return count == 0;
}
/** 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);
}
}
}
public float[] getLocation(Object obj) {
GridPoint gpoint = grid.getLocation(obj);
int[] origin = grid.getDimensions().originToIntArray(null);
float xOffset = (float) origin[0];
float yOffset = (float) origin[1];
if (gpoint == null) {
point[0] = Float.POSITIVE_INFINITY;
point[1] = Float.POSITIVE_INFINITY;
return point;
}
float x = (float) (gpoint.getX() + xOffset) * cellSize;
float y = (float) (gpoint.getY() + yOffset) * cellSize;
point[0] = x;
point[1] = y;
return point;
}
/**
* @param x
* @param y
* @return
*/
private int getNumElements(int x, int y) {
Iterable<TrafficElement> elements = map.getObjectsAt(x, y);
int elemsCount = 0;
Iterator<TrafficElement> iterator = elements.iterator();
while (iterator.hasNext()) {
iterator.next();
elemsCount++;
}
return elemsCount;
}
/**
* Constructor
*
* @param context
* @param grid
* @param normLayer
*/
public CarMap_Original(
Context<TrafficElement> context,
Grid<TrafficElement> map,
PredicatesDomains predDomains,
CarContextFactory carContextFactory,
TrafficFactFactory factFactory) {
super(map.getDimensions().getHeight(), map.getDimensions().getWidth());
this.predDomains = predDomains;
this.carContextFactory = carContextFactory;
this.factFactory = factFactory;
this.xDim = map.getDimensions().getWidth();
this.yDim = map.getDimensions().getHeight();
this.context = context;
this.map = map;
this.availableCars = new LinkedList<Car>();
this.travelingCars = new ArrayList<Car>();
this.allCars = new ArrayList<Car>();
this.carsToRemove = new ArrayList<Car>();
this.collisions = new ArrayList<Collision>();
this.collisionsToRemove = new ArrayList<Collision>();
this.positionsToCheck = new HashMap<String, GridPoint>();
this.leftLane = (int) (Math.floor(0.5 * xDim)) - 1;
this.rightLane = leftLane + 2;
this.lowerLane = (int) (Math.floor(0.5 * yDim)) - 1;
this.upperLane = lowerLane + 2;
this.startRow = 0;
this.stopRow = yDim - 1;
this.startCol = 0;
this.stopCol = xDim - 1;
this.generateCars();
}
public void infect() {
GridPoint pt = grid.getLocation(this);
List<Object> humans = new ArrayList<Object>();
for (Object obj : grid.getObjectsAt(pt.getX(), pt.getY())) {
if (obj instanceof Human) {
humans.add(obj);
}
}
if (humans.size() > 0) {
int index = RandomHelper.nextIntFromTo(0, humans.size() - 1);
Object obj = humans.get(index);
NdPoint spacePt = space.getLocation(obj);
Context<Object> context = ContextUtils.getContext(obj);
context.remove(obj);
Zombie zombie = new Zombie(space, grid);
context.add(zombie);
space.moveTo(zombie, spacePt.getX(), spacePt.getY());
grid.moveTo(zombie, pt.getX(), pt.getY());
Network<Object> net = (Network<Object>) context.getProjection("infection network");
net.addEdge(this, zombie);
}
}
public GridPoint getQueueLocation(String name, Grid grid) {
GridPoint queueLoc = null;
QueueSim queueR = null;
context = ContextUtils.getContext(this);
for (Object o : context.getObjects(QueueSim.class)) {
queueR = (QueueSim) o;
if (queueR.getName() == name) {
queueLoc = grid.getLocation(o);
// System.out.println("**** "+ queueR.getId()+ " "
// + queueLoc);
break;
}
}
return queueLoc;
}
@ScheduledMethod(start = 1, interval = 1)
public void step() {
// get the grid location of this Zombie
GridPoint pt = grid.getLocation(this);
// use the GridCellNgh class to create GridCells for
// the surrounding neighborhood .
GridCellNgh<Human> nghCreator = new GridCellNgh<Human>(grid, pt, Human.class, 1, 1);
List<GridCell<Human>> gridCells = nghCreator.getNeighborhood(true);
SimUtilities.shuffle(gridCells, RandomHelper.getUniform());
GridPoint pointWithMostHumans = null;
int maxCount = -1;
for (GridCell<Human> cell : gridCells) {
if (cell.size() > maxCount) {
pointWithMostHumans = cell.getPoint();
maxCount = cell.size();
}
}
moveTowards(pointWithMostHumans);
infect();
}
@ScheduledMethod(start = 1, interval = 1)
public void step() {
// create colNetwork in hosting context
Context<Object> context = ContextUtils.getContext(this);
Network<Object> colNet = (Network<Object>) context.getProjection("collaboration_network");
Network<Object> userNet = (Network<Object>) context.getProjection("user_network");
Network<Object> articleNet = (Network<Object>) context.getProjection("article_network");
if (!isDone) {
/*
* Neighbourhood Connection Algorithm
*/
// get the grid location of this User
GridPoint pt = grid.getLocation(this);
// use the GridCellNgh class to create GridCells for
// the surrounding neighbourhood
if (pt != null) { // TODO Why NULL?
GridCellNgh<Article> nghCreator =
new GridCellNgh<Article>(
grid, pt, Article.class, neighbourDimensions, neighbourDimensions);
List<GridCell<Article>> gridCells = nghCreator.getNeighborhood(false);
SimUtilities.shuffle(gridCells, RandomHelper.getUniform());
// if an agent exist in the surrounding environment, add an edge with it.
for (GridCell<Article> cell : gridCells) {
if (cell.size() > 0) {
List<Article> cellUsers = new ArrayList<Article>((Collection<Article>) cell.items());
articleToEdit = cellUsers.get((RandomHelper.nextIntFromTo(0, cellUsers.size() - 1)));
if (context != null && colNet != null && cellUsers != null && articleToEdit != null) {
if (!isActiveUser) { // Good Samaritan - one and only one connection
if (colNet.getDegree(articleToEdit) <= 0 // if neighbour is unconnected
&& colNet.getDegree(this) <= 0) { // if our agent is unconnected)
colNet.addEdge(this, articleToEdit);
this.isDone =
true; // this good samaritan is no longer counted in operating agents
}
} else if (!hasGeneralInterest) { // Project Leader zealot (active user),
colNet.addEdge(this, articleToEdit); // connects neighbours in every step
for (Object coopUser : colNet.getAdjacent(articleToEdit)) {
if (coopUser != null && !userNet.containsEdge(userNet.getEdge(this, coopUser))) {
userNet.addEdge(this, coopUser);
}
}
for (Object relatedArticle : colNet.getAdjacent(this)) {
if (relatedArticle != null
&& !articleNet.containsEdge(userNet.getEdge(articleToEdit, relatedArticle))) {
articleNet.addEdge(articleToEdit, relatedArticle);
}
}
}
// For active agent connection algorithm we need to update good article array if found
if (colNet.getDegree(articleToEdit)
> (goodArticleMultiplier * colNet.getDegree() / colNet.size())
&& colNet.getDegree(articleToEdit) > goodArticleConnectionCount
&& !articleToEdit.isGood) {
articleToEdit.isGood = true;
goodArticles.add(articleToEdit);
}
}
break;
}
}
}
/*
* Active Agent Connection Algorithm
*/
if (isActiveUser
&& hasGeneralInterest
&& goodArticles.size() > 0) { // if in administrator career path
articleToEdit = goodArticles.get(RandomHelper.nextIntFromTo(0, goodArticles.size() - 1));
colNet.addEdge(this, articleToEdit); // TODO reduce goodArticles by one?
for (Object coopUser : colNet.getAdjacent(articleToEdit)) {
if (coopUser != null && !userNet.containsEdge(userNet.getEdge(this, coopUser))) {
userNet.addEdge(this, coopUser);
}
}
for (Object relatedArticle : colNet.getAdjacent(this)) {
if (relatedArticle != null
&& !articleNet.containsEdge(userNet.getEdge(articleToEdit, relatedArticle))) {
articleNet.addEdge(articleToEdit, relatedArticle);
}
}
goodArticles.remove(0);
}
this.endRun();
}
}
/**
* Rain clouds appear with a certain chance, influenced by the weather For every rain cloud in the
* grid the velocity of every rain object is updated Rain clouds are removed if they have passed a
* certain time
*/
@ScheduledMethod(start = 1, interval = 1, priority = 0)
public void rain() {
// Let new raingroups appear with a certain chance
double chance = SimulationParameters.rainProb;
// The probability of rain appearing decreases if there is already rain in the grid
if (noRainGroups == 1) chance = (chance / (noRainGroups)) * 0.5;
if (noRainGroups == 2) chance = (chance / (noRainGroups)) * 0.1;
if (noRainGroups > 2) chance = (chance / (noRainGroups)) * 0.01;
double f = urng.nextDouble();
if (f < chance) {
// Let rain appear
int x = rand.nextInt((SimulationParameters.gridSize - 0) + 1);
int y = rand.nextInt((SimulationParameters.gridSize - 0) + 1);
int[] newLoc = {x, y};
// Let new raingroup appear in random location
RainGroup rg = new RainGroup(ContextUtils.getContext(this), grid, newLoc);
noRainGroups++;
rainGroups.add(rg);
}
ArrayList<RainGroup> toRemove = new ArrayList<RainGroup>();
for (RainGroup rg : rainGroups) {
// Get velocity vector of the rain
float x = Wind.getWindVelocity().x;
float y = Wind.getWindVelocity().y;
Vector2 velRain = new Vector2(x, y);
velRain.setLength(
Wind.getWindVelocity().len() * 0.9f); // Rain speed is a bit lower than that of the wind
List<Rain> toRemove1 = new ArrayList<Rain>();
// Let rain be carried by the wind
if (urng.nextDouble() < velRain.len()) {
for (Rain rain : rg.getRainObjects()) {
Directions dir = Directions.fromVectorToDir(velRain);
GridPoint pt = grid.getLocation(rain);
int cX = pt.getX() + dir.xDiff;
int cY = pt.getY() + dir.yDiff;
// If new rain-location is out of borders, delete this rain object
// In this way the cloud "travels" out of the grid
if (cX < 0
|| cX >= SimulationParameters.gridSize
|| cY < 0
|| cY >= SimulationParameters.gridSize) {
toRemove1.add(rain);
} else grid.moveTo(rain, cX, cY);
}
}
for (Rain r : toRemove1) {
rg.removeRain(r);
TreeBuilder.performance.decreaseRainCount();
}
}
// Remove the raingroups from our list which were removed from the context
for (RainGroup rg : toRemove) {
rainGroups.remove(rg);
noRainGroups--;
}
}
public GridPoint getLoc() {
loc = grid.getLocation(this);
return loc;
}
/**
* 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());
}