/**
* 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);
}
