private Coordinate runAway(final DungeonLevel currentLevel, final AbstractActor opponent) {
// Move away from the opponent
// Compute a vector from the opponent to us; don't bother to normalize it
final Coordinate origin =
currentLevel
.getPosition()
.add(new Coordinate(currentLevel.getHeight() / 2, currentLevel.getWidth() / 2));
if (opponent.getPosition().equals(origin)) {
return self.getPosition().subtract(opponent.getPosition());
}
return self.getPosition().subtract(opponent.getPosition()).add(origin);
}
@Override
protected Message updateStateDelegate(
final ActorFactionData factionData, final DungeonLevel currentLevel) {
if (opponent == null) {
return new Message(Command.REST, null, null, null, null);
}
// We have reached an exit
if (currentLevel.getTileRelative(self.getPosition()).getExit() != null) {
final Direction exit = currentLevel.getTileRelative(self.getPosition()).getExit();
final DungeonLevel neighbor = currentLevel.getNeighbor(exit);
// Make sure there is actually room for another NPC
if (neighbor.getRandomCoordinate() != null) {
currentLevel.getNonPlayerCharacters().remove(self);
neighbor.getNonPlayerCharacters().add(self);
}
return new Message(exit.toCommand(), null, null, null, null);
}
// Run away from the opponent
final Coordinate destination = getDestination(currentLevel, opponent);
final Command direction = getDirection(destination, currentLevel);
return self.processCommand(currentLevel, direction);
}
private Coordinate getNearestExit(final DungeonLevel currentLevel) {
// Move to nearest exit
final List<Tile> exits = currentLevel.getExits();
Coordinate nearestExit = null;
int minDistance = Integer.MAX_VALUE;
for (final Tile exit : exits) {
if (exit == null) {
continue;
}
final int dist2 = self.getPosition().distance2(exit.getPosition());
if (dist2 < minDistance) {
minDistance = dist2;
nearestExit = exit.getPosition();
}
}
return nearestExit;
}