@Override
public Command getNextAction(ArenaWorld world, ArenaAnimal animal) {
// TODO: Change this. Implement your own AI to make decisions regarding
// the next action.
final Location CURRENT_LOCATION = animal.getLocation();
final int ENERGY = animal.getEnergy();
final int STRENGTH = animal.getStrength();
final int MAX_ENERGY = animal.getMaxEnergy();
final int VIEW_RANGE = animal.getViewRange();
final int BREEDING_ENERGY = MAX_ENERGY - 20;
// look around fox's surroundings
int proximity;
Set<Item> surroundingItems = new TreeSet<Item>();
surroundingItems = world.searchSurroundings(animal);
// check things closest to fox first
for (proximity = 1; proximity <= VIEW_RANGE; proximity++) {
for (Item currentItem : surroundingItems) {
if (currentItem.getLocation().getDistance(CURRENT_LOCATION) == proximity) {
// if item is a rabbit
if (currentItem.getName().equals("Rabbit")) {
if (proximity == 1) {
// eat rabbit if next to the rabbit
if (currentItem.getStrength() < STRENGTH) {
return new EatCommand(animal, currentItem);
}
} else {
// otherwise go towards the rabbit
Direction toRabbit =
Util.getDirectionTowards(CURRENT_LOCATION, currentItem.getLocation());
Location gotoRabbit = new Location(CURRENT_LOCATION, toRabbit);
if (Util.isLocationEmpty((World) world, gotoRabbit)) {
return new MoveCommand(animal, gotoRabbit);
}
}
}
// if item is fox, spread out, don't compete for food
if ((currentItem.getName().equals("Fox") || currentItem.getName().equals("grass"))
&& proximity < 2) {
Direction awayfromFox =
Util.getDirectionTowards(currentItem.getLocation(), CURRENT_LOCATION);
Location ownTurf = new Location(CURRENT_LOCATION, oppositeDir(awayfromFox));
if (Util.isLocationEmpty((World) world, ownTurf)) {
return new MoveCommand(animal, ownTurf);
}
}
}
}
}
// if nothing is around the fox,
Location randomAdjLoc = Util.getRandomEmptyAdjacentLocation((World) world, CURRENT_LOCATION);
// breed if enough energy
if (ENERGY > BREEDING_ENERGY && randomAdjLoc != null) {
return new BreedCommand(animal, randomAdjLoc);
}
// otherwise move systematically around clockwise
Command move =
moveFromEdge(
CURRENT_LOCATION.getX(), CURRENT_LOCATION.getY(), world, animal, CURRENT_LOCATION);
return move;
}
