source: src/main/java/negotiator/boaframework/sharedagentstate/anac2011/BRAMAgentSAS.java

package negotiator.boaframework.sharedagentstate.anac2011;
import genius.core.Bid;
import genius.core.boaframework.NegotiationSession;
import genius.core.boaframework.SharedAgentState;

/**
 * This is the shared code of the acceptance condition and bidding strategy of ANAC 2011 BRAMAagent.
 * The code was taken from the ANAC2011 BRAMAagent and adapted to work within the BOA framework.
 * 
 * @author Mark Hendrikx
 */
public class BRAMAgentSAS extends SharedAgentState{

        private NegotiationSession negotiationSession;
        
        //The threshold will be calculated as percentage of the required utility depending of the elapsed time 
        private final double THRESHOLD_PERC_FLEXIBILITY_1 = 0.07;
        private final double THRESHOLD_PERC_FLEXIBILITY_2 = 0.15;
        private final double THRESHOLD_PERC_FLEXIBILITY_3 = 0.3;
        private final double THRESHOLD_PERC_FLEXIBILITY_4 = 0.8;
        private double threshold = 0;
        
        public BRAMAgentSAS (NegotiationSession negoSession) {
                negotiationSession = negoSession;
                NAME = "BRAMAgent";
        }
        
        
        public double getThreshold() {
                return threshold;
        }
        
        
        /**
         * This function calculates the threshold.
         * It takes into consideration the time that passed from the beginning of the game.
         * As time goes by, the agent becoming more flexible to the offers that it is willing to accept.
         * 
         * @return - the threshold
         */
        public double getNewThreshold(Bid minBid, Bid maxBid) {
                double time = negotiationSession.getTime();
                double minUtil = negotiationSession.getUtilitySpace().getUtilityWithDiscount(minBid, time);
                double maxUtil = negotiationSession.getUtilitySpace().getUtilityWithDiscount(maxBid, time);
                double thresholdBestBidDiscount = 0.0;
                
                if(negotiationSession.getTimeline().getTime() < 60.0 / 180.0) {
                        thresholdBestBidDiscount =   maxUtil - (maxUtil-minUtil)* THRESHOLD_PERC_FLEXIBILITY_1;
                        
                } else if(negotiationSession.getTimeline().getTime() < 150.0 / 180.0) {
                        thresholdBestBidDiscount =  maxUtil - (maxUtil-minUtil) * THRESHOLD_PERC_FLEXIBILITY_2;
                }
                else if (negotiationSession.getTimeline().getTime() < 175.0 / 180.0)
                        thresholdBestBidDiscount =  maxUtil - (maxUtil-minUtil)* THRESHOLD_PERC_FLEXIBILITY_3;
                else {
                        thresholdBestBidDiscount =  maxUtil - (maxUtil-minUtil)* THRESHOLD_PERC_FLEXIBILITY_4; 
                }
                
                threshold = thresholdBestBidDiscount;
                return thresholdBestBidDiscount;
        }
}