How to use

IPosition

in

it.unibo.alchemist.model.interfaces

@Override
public Boolean observe(final IEnvironment<T> env) {
  if (!canItChange) {
    return true;
  }
  int count = 0;
  for (final int code : nodes) {
    final double[] coords = env.getPosition(env.getNodeByID(code)).getCartesianCoordinates();
    if (coords[0] < ne[0] && coords[0] > sw[0] && coords[1] < ne[1] && coords[1] > sw[1]) {
      count++;
    }
  }
  if ((double) count / nodes.length < nodesRatio) {
    return false;
  }
  canItChange = false;
  return true;
}