public static Map<Territory, Double> findSeaTerritoryValues(
final PlayerID player, final List<Territory> territoriesThatCantBeHeld) {
final GameData data = ProData.getData();
final List<Territory> allTerritories = data.getMap().getTerritories();
// Determine value for water territories
final Map<Territory, Double> territoryValueMap = new HashMap<Territory, Double>();
for (final Territory t : allTerritories) {
if (!territoriesThatCantBeHeld.contains(t)
&& t.isWater()
&& !data.getMap().getNeighbors(t, Matches.TerritoryIsWater).isEmpty()) {
// Determine sea value based on nearby convoy production
double nearbySeaProductionValue = 0;
final Set<Territory> nearbySeaTerritories =
data.getMap()
.getNeighbors(t, 4, ProMatches.territoryCanMoveSeaUnits(player, data, true));
final List<Territory> nearbyEnemySeaTerritories =
Match.getMatches(
nearbySeaTerritories,
ProMatches.territoryIsEnemyOrCantBeHeld(player, data, territoriesThatCantBeHeld));
for (final Territory nearbyEnemySeaTerritory : nearbyEnemySeaTerritories) {
final Route route =
data.getMap()
.getRoute_IgnoreEnd(
t,
nearbyEnemySeaTerritory,
ProMatches.territoryCanMoveSeaUnits(player, data, true));
if (route == null || MoveValidator.validateCanal(route, null, player, data) != null) {
continue;
}
final int distance = route.numberOfSteps();
if (distance > 0) {
nearbySeaProductionValue +=
TerritoryAttachment.getProduction(nearbyEnemySeaTerritory) / Math.pow(2, distance);
}
}
// Determine sea value based on nearby enemy sea units
double nearbyEnemySeaUnitValue = 0;
final List<Territory> nearbyEnemySeaUnitTerritories =
Match.getMatches(nearbySeaTerritories, Matches.territoryHasEnemyUnits(player, data));
for (final Territory nearbyEnemySeaTerritory : nearbyEnemySeaUnitTerritories) {
final Route route =
data.getMap()
.getRoute_IgnoreEnd(
t,
nearbyEnemySeaTerritory,
ProMatches.territoryCanMoveSeaUnits(player, data, true));
if (route == null || MoveValidator.validateCanal(route, null, player, data) != null) {
continue;
}
final int distance = route.numberOfSteps();
if (distance > 0) {
nearbyEnemySeaUnitValue +=
nearbyEnemySeaTerritory.getUnits().countMatches(Matches.unitIsEnemyOf(data, player))
/ Math.pow(2, distance);
}
}
// Set final values
final double value = 100 * nearbySeaProductionValue + nearbyEnemySeaUnitValue;
territoryValueMap.put(t, value);
} else if (t.isWater()) {
territoryValueMap.put(t, 0.0);
}
}
return territoryValueMap;
}
