/**
* This method does the actual trade by interacting with the bank and the Current Player to
* ascertain the port type and what if they can trade or not.
*
* @pre the resource types it receives are valid, and that tradeIn is what the player performing
* the trade already has
* @throws Exception
*/
public void doMaritimeTrade(ResourceType tradeIn, ResourceType receive) throws Exception {
if (canDoPlayerDoMaritimeTrade(tradeIn, receive)) {
ResourceCard[] tradingCards = currentPlayer.prepareBankTrade(tradeIn);
bank.playerTurnInResources(tradingCards);
currentPlayer.getResourceCardHand().addCard(bank.playerTakeResource(receive));
} else throw new Exception("Cannot do Maritime Trade");
}
