@Override
public boolean contains(GridPoint referencePoint, GridPoint targetPoint) {
return this.relativeLocations.contains(
new GridPoint(
targetPoint.getColumn() - referencePoint.getColumn(),
targetPoint.getRow() - referencePoint.getRow()));
}
@Override
public Set<GridPoint> getAllAffectedLocations(GridPoint referencePoint) {
Set<GridPoint> results = new HashSet<GridPoint>();
for (GridPoint relativeLocation : this.relativeLocations) {
int x = referencePoint.getColumn() + relativeLocation.getColumn();
int y = referencePoint.getRow() + relativeLocation.getRow();
if (this.grid.isInBounds(x, y)) {
results.add(new GridPoint(x, y));
}
}
return results;
}
