/**
* All build options require that appropriate units are built in appropriate places (e.g., armies
* can't go in the water, fleets can't go in landlocked provinces, fleets must have coasts
* specified if required, etc.). This method takes care of that.
*
* <p>returns false if we cannot build here.
*/
private boolean checkBuildUnit(
StateInfo stateInfo, Province province, Location loc, StringBuffer sb) {
if (srcUnitType == null) {
sb.append(Utils.getLocalString(NOBUILD_NO_UNIT_SELECTED));
return false;
}
if (srcUnitType.equals(Unit.Type.ARMY)) {
if (province.isSea()) {
sb.append(Utils.getLocalString(NOBUILD_NO_ARMY_IN_SEA));
return false;
} else {
// check borders
if (!GUIOrderUtils.checkBorder(this, loc, srcUnitType, stateInfo.getPhase(), sb)) {
return false;
}
sb.append(Utils.getLocalString(BUILD_ARMY_OK));
return true;
}
} else if (srcUnitType.equals(Unit.Type.FLEET)) {
if (province.isLandLocked()) {
sb.append(Utils.getLocalString(NOBUILD_FLEET_LANDLOCKED));
return false;
} else {
// check borders
if (!GUIOrderUtils.checkBorder(this, loc, srcUnitType, stateInfo.getPhase(), sb)) {
return false;
}
sb.append(Utils.getLocalString(BUILD_FLEET_OK));
return true;
}
} else if (srcUnitType.equals(Unit.Type.WING)) {
// check borders
if (!GUIOrderUtils.checkBorder(this, loc, srcUnitType, stateInfo.getPhase(), sb)) {
return false;
}
sb.append(Utils.getLocalString(BUILD_WING_OK));
return true;
}
// this should not occur.
sb.append("** Unknown unit type! **");
return false;
} // checkBuildUnit()
@Override
public boolean testLocation(StateInfo stateInfo, Location location, StringBuffer sb) {
sb.setLength(0);
if (isComplete()) {
sb.append(Utils.getLocalString(GUIOrder.COMPLETE, getFullName()));
return false;
}
Position position = stateInfo.getPosition();
Province province = location.getProvince();
if (province.hasSupplyCenter()) {
Power SCOwner = position.getSupplyCenterOwner(province);
// general screening, applicable to all build options
//
if (SCOwner == null) {
sb.append(Utils.getLocalString(NOBUILD_UNOWNED_SC));
return false;
}
if (position.hasUnit(province)) {
sb.append(Utils.getLocalString(NOBUILD_UNIT_PRESENT));
return false;
}
if (!stateInfo.canIssueOrder(SCOwner)) {
sb.append(Utils.getLocalString(NOBUILD_SC_NOT_CONTROLLED));
return false;
}
// indicate if we have no builds available
//
Adjustment.AdjustmentInfo adjInfo = stateInfo.getAdjustmenInfoMap().get(SCOwner);
if (adjInfo.getAdjustmentAmount() <= 0) {
sb.append(Utils.getLocalString(NOBUILD_NO_BUILDS_AVAILABLE, SCOwner.getName()));
return false;
}
// build-option-specific, based upon RuleOptions
//
RuleOptions ruleOpts = stateInfo.getRuleOptions();
if (ruleOpts.getOptionValue(RuleOptions.OPTION_BUILDS)
== RuleOptions.VALUE_BUILDS_ANY_OWNED) {
return checkBuildUnit(stateInfo, province, location, sb);
} else if (ruleOpts.getOptionValue(RuleOptions.OPTION_BUILDS)
== RuleOptions.VALUE_BUILDS_ANY_IF_HOME_OWNED) {
// check if we have ONE owned home supply center before buidling
// in a non-home supply center.
//
if (SCOwner != position.getSupplyCenterHomePower(province)
&& !position.hasAnOwnedHomeSC(SCOwner)) {
sb.append(Utils.getLocalString(NOBUILD_NEED_ONE_OWNED_SC));
return false; // failed
}
// we (probably) can build here
return checkBuildUnit(stateInfo, province, location, sb);
} else {
// build only in owned HOME supply centers
//
if (SCOwner == position.getSupplyCenterHomePower(province)) {
// we (probably) can build here
return checkBuildUnit(stateInfo, province, location, sb);
}
// build failure.
sb.append(Utils.getLocalString(NOBUILD_NOT_OWNED_HOME_SC));
return false;
}
} else {
sb.append(Utils.getLocalString(NOBUILD_MUST_BE_AN_OWNED_SC));
return false;
}
// NO return here: thus we must appropriately exit within an if/else block above.
} // testLocation()