source: src/main/java/agents/anac/y2012/OMACagent/TimeBidHistory.java

package agents.anac.y2012.OMACagent;

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

import genius.core.Bid;
import genius.core.issue.Issue;
import genius.core.utility.AdditiveUtilitySpace;

//ver. 1.06
public class TimeBidHistory {
        private List<Bid> fMyBids;
        private List<Bid> fOpponentBids;
        public List<Double> fTimes; // new, record the time of receiving
                                                                // counter-offers

        public int curIndex = 0; // new, refer to the current position of opp bid
                                                                // history
        public int curLength = 0; // new, the size of current bid window
        private double discount = 0;
        protected AdditiveUtilitySpace fUtilitySpace;
        public double est_t = 0;
        public double est_u = 0;
        public double maxU = -1;
        public int pMaxIndex = 0;
        public Bid bestOppBid = null;
        public double[] maxBlock; // record max
        public List<Integer> newMC; // times where new maximum concession is given

        public TimeBidHistory(AdditiveUtilitySpace pUtilitySpace, double dis) {
                discount = dis;
                fMyBids = new ArrayList<Bid>();
                fTimes = new ArrayList<Double>(); // new
                newMC = new ArrayList<Integer>();
                this.fUtilitySpace = pUtilitySpace;

                maxBlock = new double[100];
                for (int i = 0; i < 100; i++) {
                        maxBlock[i] = 0.0;
                }

        }

        /*
         * Add our own bid to the list
         */
        public void addMyBid(Bid pBid) {
                if (pBid == null)
                        throw new IllegalArgumentException("pBid can't be null.");
                fMyBids.add(pBid);

        }

        /*
         * returns the size (number) of offers already made
         */
        public int getMyBidCount() {
                return fMyBids.size();
        }

        /*
         * returns a bid from the list
         */
        public Bid getMyBid(int pIndex) {
                return fMyBids.get(pIndex);
        }

        /*
         * returns the last offer made
         */
        public Bid getMyLastBid() {
                Bid result = null;
                if (getMyBidCount() > 0) {
                        result = fMyBids.get(getMyBidCount() - 1);
                }
                return result;
        }

        /*
         * returns true if a bid has already been made before
         */
        public boolean isInsideMyBids(Bid a) {
                boolean result = false;
                for (int i = 0; i < getMyBidCount(); i++) {
                        if (a.equals(getMyBid(i))) {
                                result = true;
                        }
                }
                return result;
        }

        /*
         * add the bid the oppponent to his list
         */
        public void addOpponentBidnTime(double oppU, Bid pBid, double time) {
                double undisOppU = oppU / Math.pow(discount, time);
                double nTime = time;

                if (pBid == null)
                        throw new IllegalArgumentException("vBid can't be null.");

                fTimes.add(time);

                if (undisOppU > maxU) {
                        maxU = undisOppU; // prabably not useful in some sense
                        // pMaxIndex = getOpponentBidCount()-1;
                        pMaxIndex = fTimes.size() - 1;
                        bestOppBid = pBid;
                        newMC.add(pMaxIndex);
                }

                if (nTime >= 1.0)
                        nTime = 0.99999;

                if (maxBlock[(int) Math.floor(nTime * 100)] < undisOppU)
                        maxBlock[(int) Math.floor(nTime * 100)] = undisOppU;

        }

        public double[] getTimeBlockList() {
                return maxBlock;
        }

        /*
         * returns the number of bids the opponent has made
         */
        public int getOpponentBidCount() {
                return fOpponentBids.size();
        }

        /*
         * returns the bid at a given index
         */
        public Bid getOpponentBid(int pIndex) {
                return fOpponentBids.get(pIndex);
        }

        /*
         * returns the opponents' last bid
         */
        public Bid getOpponentLastBid() {
                Bid result = null;
                if (getOpponentBidCount() > 0) {
                        result = fOpponentBids.get(getOpponentBidCount() - 1);
                }
                return result;
        }

        public double getMyUtility(Bid b) {
                try {
                        return this.fUtilitySpace.getUtility(b);
                } catch (Exception e) {
                        return 0;
                }
        }

        public double getOpponentUtility(Bid b) {
                try {
                        return this.fUtilitySpace.getUtility(b);
                } catch (Exception e) {
                        return 0;
                }
        }

        /*
         * returns the list of issues in the domain
         */
        public List<Issue> getIssues() {
                return this.fUtilitySpace.getDomain().getIssues();
        }

        public double getFeaMC(double time) {
                int len = newMC.size();
                double dif = 1.0;

                if (len >= 3) {
                        dif = fTimes.get(newMC.get(len - 1))
                                        - fTimes.get(newMC.get(len - 3));
                        dif = dif / 2.0;
                } else if (len >= 2) {
                        dif = fTimes.get(newMC.get(len - 1))
                                        - fTimes.get(newMC.get(len - 2));
                } else {
                        dif = 0D;
                }

                // newmark("a-dif.txt",""+dif+","+len+","+time);
                return dif;
        }

        public double getMCtime() {
                if (newMC.size() == 0)
                        return 0.0;

                return fTimes.get(newMC.get(newMC.size() - 1));
        }

}