/**
* handles objects, so deletes them if they should be deleted, all changes are made recursively
*
* @param objects the objects which should be handled
* @return the rest of the objects which shouldn't be deleted
*/
public ArrayList<SpaceObject> handleObjects(ArrayList<SpaceObject> objects) {
if (objects.size() <= 0) return objects;
SpaceObject thisObject = objects.get(0);
ArrayList<SpaceObject> remainingObjects = getRestOfList(objects);
ArrayList<SpaceObject> thisOverlappingObjects = thisObject.overlapingObjects(objects);
if (thisObject.shouldBeDeletedIfOverlaps(thisOverlappingObjects)) {
for (SpaceObject overlappingObject :
thisObject.shouldBeBothDeletedIfOverlaps(thisOverlappingObjects)) {
this.score += overlappingObject.getPoints();
remainingObjects.remove(overlappingObject);
}
this.score += thisObject.getPoints();
return handleObjects(remainingObjects);
} else if (thisObject.shouldBeDeletedAsItCrashsWithWall(this.resolution)) {
return handleObjects(remainingObjects);
} else {
remainingObjects = handleObjects(remainingObjects);
remainingObjects.add(thisObject);
return remainingObjects;
}
}
/**
* returns the points which can be earned if all asteroids were shot down
*
* @return the points which can be earned if all asteroids were shot down
*/
public int getTotalPoints() {
int totalPoints = 0;
for (SpaceObject object : this.objects) {
totalPoints += object.getPoints();
}
return totalPoints;
}