source: src/main/java/agents/ai2014/group3/Group3.java@ 61

package agents.ai2014.group3;

import java.util.ArrayList;
import java.util.List;

import genius.core.AgentID;
import genius.core.Bid;
import genius.core.BidHistory;
import genius.core.DeadlineType;
import genius.core.actions.Accept;
import genius.core.actions.Action;
import genius.core.actions.DefaultAction;
import genius.core.actions.Offer;
import genius.core.bidding.BidDetails;
import genius.core.parties.AbstractNegotiationParty;
import genius.core.parties.NegotiationInfo;
import genius.core.utility.AdditiveUtilitySpace;

/**
 * This is your negotiation party.
 */
public class Group3 extends AbstractNegotiationParty {

        private int roundN = 0; // Number of the round we are in
        private Bid lastbid; // LastBid we received from someone
        private List<BidHistory> bidhistorylist; // List of the lists of Bids
                                                                                                // received, one list for every
                                                                                                // agent
        private List<AgentID> partylist; // List of Agents
        private ArrayList<Bid> possibleBids; // List of all possible Bids in this
                                                                                        // utility Space
        private ArrayList<Bid> alreadyProposed; // List of all Bids, we received and
                                                                                        // then reproposed
        private ArrayList<AgentUtils> agentUtilsList;

        // List of AgentUtils that are objects that model the opponents utility
        // function and give their utility to a specific Bid

        @Override
        public void init(NegotiationInfo info) {
                super.init(info);

                // Initialize the lists
                bidhistorylist = new ArrayList<BidHistory>();
                partylist = new ArrayList<AgentID>();
                alreadyProposed = new ArrayList<Bid>();
                possibleBids = BidGenerator.BidList(((AdditiveUtilitySpace) utilitySpace));
                agentUtilsList = new ArrayList<AgentUtils>();

        }

        /**
         * Each round this method gets called and ask you to accept or offer. The
         * first party in the first round is a bit different, it can only propose an
         * offer.
         *
         * @param validActions
         *            Either a list containing both accept and offer or only offer.
         * @return The chosen action.
         */
        @Override
        public Action chooseAction(List<Class<? extends Action>> validActions) {
                roundN++; // Update the round number
                // System.out.println("Round N� "+ roundN);
                // System.out.println("I am " + this.getPartyId().toString());
                if (!validActions.contains(Accept.class)) {
                        // No Offer on the table yet

                        // Generate all possible bids for this utility space
                        double[] utils = BidGenerator.utilitylist(possibleBids, this);
                        // for(int i=0;i<possibleBids.size();i++) {
                        // System.out.println("Bid N� "+ i+" utility: " + utils[i] ) ;
                        // }

                        // System.out.println("Deadline"+ deadlines.toString());
                        // System.out.println("Deadline "+ this.roundDeadline());

                        // Offer Maximum Utility
                        try {
                                // System.out.println("Offering maximum");
                                return new Offer(getPartyId(), utilitySpace.getMaxUtilityBid());
                        } catch (Exception e) {
                                e.printStackTrace();
                                return new Offer(getPartyId(), generateRandomBid());
                        }
                }

                // If accepting conditions are met, accept
                if (Strategy.acceptingConditions(this)) {
                        // System.out.println("Accepting");
                        return new Accept(getPartyId(), lastbid);
                }

                // System.out.println("My Next Bid Utility"+
                // Strategy.nextBidUtility(this));

                // Check if we should offer an offer we received already, we will only
                // resend an offer one time
                if (Strategy.offerPreviousOffer(this)) {
                        Bid toOffer = Strategy.bestPreviousBid(this);

                        // Add this offer to list so we don't send it again
                        alreadyProposed.add(toOffer);
                        // System.out.println("Offering previous bid, of Utility "+
                        // getUtility(toOffer));
                        return new Offer(getPartyId(), toOffer);
                }

                // Generate new offer with that desired utility
                Bid toOffer = Strategy.calculateMyBid(this);
                // System.out.println("Generating a new Bid, of Utility "+
                // getUtility(toOffer));
                return new Offer(getPartyId(), toOffer);
        }

        /**
         * All offers proposed by the other parties will be received as a message.
         * You can use this information to your advantage, for example to predict
         * their utility.
         *
         * @param sender
         *            The party that did the action.
         * @param action
         *            The action that party did.
         */
        @Override
        public void receiveMessage(AgentID sender, Action action) {
                // Here you can listen to other parties' messages

                if (action instanceof Offer) {
                        if (!partylist.contains(/* action.getAgent() */(AgentID) sender)) {
                                // We have never seen this agent
                                // System.out.println("New Agent: " +
                                // action.getAgent().toString());
                                partylist.add((AgentID) sender); // add
                                                                                                        // it
                                                                                                        // to
                                                                                                        // our
                                                                                                        // list
                                BidHistory newAgentBidHistory = new BidHistory(); // create a
                                                                                                                                        // new agent
                                                                                                                                        // list and
                                                                                                                                        // add it.
                                bidhistorylist.add(newAgentBidHistory);
                                // create a new agentUtils and add it
                                AgentUtils newAgentUtils = new AgentUtils(((AgentID) sender), newAgentBidHistory,
                                                ((AdditiveUtilitySpace) utilitySpace).getNrOfEvaluators());
                                agentUtilsList.add(newAgentUtils);
                        }
                        lastbid = DefaultAction.getBidFromAction(action);
                        // add the bid to the bidhistory
                        bidhistorylist.get(partylist.indexOf(((AgentID) sender))).add(new BidDetails(lastbid, getUtility(lastbid)));
                        // Loop through our agent List to find the one that sent the message
                        // and update his AgentUtils
                        for (int i = 0; i < agentUtilsList.size(); i++) {
                                if (agentUtilsList.get(i).agent == ((AgentID) sender)) {
                                        agentUtilsList.get(i).recalculateUtilFunction();
                                        break;
                                }
                        }
                        // System.out.println(this.getPartyId().toString() +
                        // " Received bid of utility:" + getUtility(lastbid));
                }

        }

        // Extra methods

        public ArrayList<AgentUtils> getAgentUtilsList() {
                return agentUtilsList;
        }

        public int roundDeadline() {
                return getDeadlines().getType() == DeadlineType.ROUND ? getDeadlines().getValue() : 0;
        }

        public int getRoundN() {
                return roundN;
        }

        public List<AgentID> getPartylist() {
                return partylist;
        }

        public Bid getLastbid() {
                return lastbid;
        }

        public BidHistory getBidhistory(AgentID Agent) {
                return bidhistorylist.get(partylist.indexOf(Agent));
        }

        public ArrayList<Bid> getAlreadyProposed() {
                return alreadyProposed;
        }

        public ArrayList<Bid> getPossibleBids() {
                return possibleBids;
        }

        protected AgentID partyId = new AgentID("Group 3");

        @Override
        public String getDescription() {
                return "ai2014 group3";
        }

}