SLIC-Reference : : SendTradeBid  

SFN_ERROR Slic_SendTradeBid::Call(SlicArgList *args)
{
	if (args->Count() != 0)
		return SFN_ERROR_NUM_ARGS;

	SlicObject *context = g_slicEngine->GetContext();
	if(context->GetNumRecipients() < 1)
		return SFN_ERROR_NOT_TRADE_BID;

	if(context->GetNumCities() < 2)
		return SFN_ERROR_NOT_TRADE_BID;
	
	if(context->GetNumGoods() < 1)
		return SFN_ERROR_NOT_TRADE_BID;

	PLAYER_INDEX sender = context->GetRecipient(0);
	Assert(g_player[sender]);
	if(!g_player[sender])
		return SFN_ERROR_INTERNAL;

	g_player[sender]->SendTradeBid(context->GetCity(0),
								   context->GetGood(0),
								   context->GetCity(1),
								   15);
	Message message;
	g_slicEngine->GetCurrentMessage(message);
	if(message != Message()) {
		g_slicEngine->KillCurrentMessage();
	}
	return SFN_ERROR_OK;
}