/**
* Selects a faction from the salvage list and generates a table using the same parameters as this
* table, but from five years earlier. Generated tables are cached for later use. If the generated
* table contains no units, it is discarded and the selected entry is deleted. This continues
* until either a unit is generated or there are no remaining entries.
*
* @param filter - passed to generateUnit() in the generated table.
* @return - a unit generated from another faction, or null if none of the factions in the salvage
* list contain any units that meet the parameters.
*/
private MechSummary generateSalvage(UnitFilter filter) {
while (salvageTotal > 0) {
int roll = Compute.randomInt(salvageTotal);
TableEntry salvageEntry = null;
for (TableEntry te : salvageTable) {
if (roll < te.weight) {
salvageEntry = te;
break;
}
roll -= te.weight;
}
if (salvageEntry != null) {
UnitTable salvage =
UnitTable.findTable(
salvageEntry.getSalvageFaction(),
key.getUnitType(),
key.getYear() - 5,
key.getRating(),
key.getWeightClasses(),
key.getNetworkMask(),
key.getMovementModes(),
key.getRoles(),
key.getRoleStrictness(),
key.getFaction());
if (salvage.hasUnits()) {
return salvage.generateUnit(filter);
} else {
salvageTotal -= salvageEntry.weight;
salvageTable.remove(salvageEntry);
}
}
}
assert (salvageTable.isEmpty() && salvageTotal == 0);
return null;
}
/**
* Initializes table based on values provided by key
*
* @param key - a structure providing the parameters for generating the table
*/
protected UnitTable(CacheKey key) {
this.key = key;
/**
* Generate the RAT, then go through it to build the NavigableMaps that will be used for random
* selection.
*/
if (key.getFaction().isActiveInYear(key.getYear())) {
List<TableEntry> table =
RATGenerator.getInstance()
.generateTable(
key.getFaction(),
key.getUnitType(),
key.getYear(),
key.getRating(),
key.getWeightClasses(),
key.getNetworkMask(),
key.getMovementModes(),
key.getRoles(),
key.getRoleStrictness(),
key.getDeployingFaction());
Collections.sort(table);
table.forEach(
te -> {
if (te.isUnit()) {
unitTotal += te.weight;
unitTable.add(te);
} else {
salvageTotal += te.weight;
salvageTable.add(te);
}
});
if (salvageTotal + unitTotal > 0) {
salvagePct = salvageTotal * 100 / (salvageTotal + unitTotal);
}
}
}
