/**
* Handle a "setBuildQueue"-message.
*
* @param server The <code>FreeColServer</code> handling the message.
* @param player The <code>Player</code> the message applies to.
* @param connection The <code>Connection</code> message was received on.
* @return An update containing the new queue or an error <code>Element</code> on failure.
*/
public Element handle(FreeColServer server, Player player, Connection connection) {
ServerPlayer serverPlayer = server.getPlayer(connection);
Game game = server.getGame();
Specification spec = game.getSpecification();
Colony colony;
try {
colony = player.getOurFreeColGameObject(colonyId, Colony.class);
} catch (Exception e) {
return DOMMessage.clientError(e.getMessage());
}
if (queue == null) {
return DOMMessage.clientError("Empty queue");
}
List<BuildableType> buildQueue = new ArrayList<BuildableType>();
for (int i = 0; i < queue.length; i++) {
try {
buildQueue.add(i, spec.getType(queue[i], BuildableType.class));
} catch (Exception cce) {
return DOMMessage.clientError("Not a buildable type: " + queue[i]);
}
}
// Proceed to set the build queue.
return server.getInGameController().setBuildQueue(serverPlayer, colony, buildQueue);
}
/**
* Handle a "buildColony"-message.
*
* @param server The <code>FreeColServer</code> handling the request.
* @param player The <code>Player</code> building the colony.
* @param connection The <code>Connection</code> the message is from.
* @return An update <code>Element</code> defining the new colony and updating its surrounding
* tiles, or an error <code>Element</code> on failure.
*/
public Element handle(FreeColServer server, Player player, Connection connection) {
Game game = server.getGame();
ServerPlayer serverPlayer = server.getPlayer(connection);
Unit unit;
try {
unit = player.getFreeColGameObject(builderId, Unit.class);
} catch (Exception e) {
return DOMMessage.clientError(e.getMessage());
}
if (!unit.canBuildColony()) {
return DOMMessage.clientError("Unit " + builderId + " can not build colony.");
}
if (colonyName == null) {
return DOMMessage.clientError("Null colony name");
} else if (Player.ASSIGN_SETTLEMENT_NAME.equals(colonyName)) {; // ok
} else if (game.getSettlement(colonyName) != null) {
return DOMMessage.clientError("Non-unique colony name " + colonyName);
}
Tile tile = unit.getTile();
if (!player.canClaimToFoundSettlement(tile)) {
return DOMMessage.clientError("Can not build colony on tile: " + tile);
}
// Build can proceed.
return server.getInGameController().buildSettlement(serverPlayer, unit, colonyName);
}
/**
* Handle a "deliverGift"-message.
*
* @param server The <code>FreeColServer</code> handling the message.
* @param player The <code>Player</code> the message applies to.
* @param connection The <code>Connection</code> message was received on.
* @return An update containing the unit and settlement, or an error <code>Element</code> on
* failure.
*/
public Element handle(FreeColServer server, Player player, Connection connection) {
ServerPlayer serverPlayer = server.getPlayer(connection);
Unit unit;
try {
unit = player.getFreeColGameObject(unitId, Unit.class);
} catch (Exception e) {
return DOMMessage.clientError(e.getMessage());
}
Settlement settlement;
try {
settlement = unit.getAdjacentSettlementSafely(settlementId);
} catch (Exception e) {
return DOMMessage.clientError(e.getMessage());
}
// Make sure we are trying to deliver something that is there
if (goods.getLocation() != unit) {
return DOMMessage.createError("server.trade.noGoods", "deliverGift of non-existent goods");
}
// Proceed to deliver.
return server
.getInGameController()
.deliverGiftToSettlement(serverPlayer, unit, settlement, goods);
}
/**
* Handle a "attack"-message.
*
* @param server The <code>FreeColServer</code> handling the message.
* @param player The <code>Player</code> the message applies to.
* @param connection The <code>Connection</code> message was received on.
* @return An update encapsulating the attack or an error <code>Element</code> on failure.
*/
public Element handle(FreeColServer server, Player player, Connection connection) {
ServerPlayer serverPlayer = server.getPlayer(connection);
Unit unit;
try {
unit = serverPlayer.getOurFreeColGameObject(unitId, Unit.class);
} catch (Exception e) {
return DOMMessage.clientError(e.getMessage());
}
Tile tile;
try {
tile = unit.getNeighbourTile(directionString);
} catch (Exception e) {
return DOMMessage.clientError(e.getMessage());
}
MoveType moveType = unit.getMoveType(tile);
if (moveType == MoveType.ENTER_INDIAN_SETTLEMENT_WITH_SCOUT
|| moveType == MoveType.ENTER_FOREIGN_COLONY_WITH_SCOUT
|| moveType.isAttack()) {; // OK
} else {
return DOMMessage.clientError(
"Illegal attack move for: "
+ unitId
+ " type: "
+ moveType
+ " from: "
+ unit.getLocation().getId()
+ " to: "
+ tile.getId());
}
Unit defender = tile.getDefendingUnit(unit);
if (defender == null) {
return DOMMessage.clientError(
"Could not find defender"
+ " in tile: "
+ tile.getId()
+ " from: "
+ unit.getLocation().getId());
}
// Proceed to attack.
return server.getInGameController().combat(serverPlayer, unit, defender, null);
}
/**
* Create a new <code>DeliverGiftMessage</code> from a supplied element.
*
* @param game The <code>Game</code> this message belongs to.
* @param element The <code>Element</code> to use to create the message.
*/
public DeliverGiftMessage(Game game, Element element) {
this.unitId = element.getAttribute("unit");
this.settlementId = element.getAttribute("settlement");
this.goods = new Goods(game, DOMMessage.getChildElement(element, Goods.getXMLElementTagName()));
}
