public static void floodSearch(Set<PS> set, Faction color, int max) {
// Clean
if (set == null) throw new NullPointerException("set");
if (color == null) throw new NullPointerException("color");
// Expand
Set<PS> expansion = new LinkedHashSet<PS>();
for (PS chunk : set) {
Set<PS> neighbours =
MUtil.set(
chunk.withChunkX(chunk.getChunkX() + 1),
chunk.withChunkX(chunk.getChunkX() - 1),
chunk.withChunkZ(chunk.getChunkZ() + 1),
chunk.withChunkZ(chunk.getChunkZ() - 1));
for (PS neighbour : neighbours) {
if (set.contains(neighbour)) continue;
Faction faction = BoardColl.get().getFactionAt(neighbour);
if (faction == null) continue;
if (faction != color) continue;
expansion.add(neighbour);
}
}
set.addAll(expansion);
// No Expansion?
if (expansion.isEmpty()) return;
// Reached Max?
if (set.size() >= max) return;
// Recurse
floodSearch(set, color, max);
}
