edu.stanford.multiagent.gamer
Class MajorityVoting

java.lang.Object
  |
  +--edu.stanford.multiagent.gamer.ParameterizedObject
        |
        +--edu.stanford.multiagent.gamer.Game
              |
              +--edu.stanford.multiagent.gamer.MajorityVoting

public class MajorityVoting

extends Game

Generates an instance of the Majority Voting game. Subclasses Game directly without an intermediate layer. Note that in this version of the Majority Voting game, players' utilities for each candidate are arbitrary and it is possible that a player would be indifferent between two or more candidates. Also, in this version if two candidates have the same number of votes, the lower indexed candidate is declared winner.

Field Summary

Fields inherited from class edu.stanford.multiagent.gamer.Game

actions, DEFAULT_HIGH, DEFAULT_LOW, intMult, intPayoffs, players, pMaxPayoff, pMinPayoff, pNormalize, symActions

Fields inherited from class edu.stanford.multiagent.gamer.ParameterizedObject

parameters

Constructor Summary

MajorityVoting()

Method Summary

protected void	checkParameters() Checks if Parameter values are consistent.
void	doGenerate() Generate the game and store all of the players' utilities for each candidate in preferences matrix
protected java.lang.String	getGameHelp() Return help screen information about the given game class.
java.util.Vector	getPayoff(int[] outcome) Return a Vector with all players' utilities at the given outcome
double	getPayoff(int[] outcome, int player) Return the payoff for the given player in the given outcome.
void	initialize() Initializes using preset parameter values
void	randomizeParameters() Sets values of any unset parameters randomly.

Methods inherited from class edu.stanford.multiagent.gamer.Game

generate, getAutoNormPayoff, getDescription, getHelp, getName, getNormPayoff, getNumActions, getNumActions, getNumPlayers, getOutputPayoff, getOutputPayoff, getRangeHelp, parseActions, parsePlayersActions, parsePlayersSameNumberActions, parseSameNumberActions, setDescription, setName, setNormMinAndMax, setNumActions, setNumActions, setNumPlayers, writeGame

Methods inherited from class edu.stanford.multiagent.gamer.ParameterizedObject

getBooleanParameter, getDoubleParameter, getLongParameter, getParamDescription, getParameter, getParameters, getStringParameter, setParameter, setParameter, setParameters, setParameters

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MajorityVoting

public MajorityVoting()
               throws java.lang.Exception

Method Detail

initialize

public void initialize()
                throws java.lang.Exception

Description copied from class: Game

Initializes using preset parameter values

Overrides:

initialize in class Game

Throws:

java.lang.Exception

checkParameters

protected void checkParameters()
                        throws java.lang.Exception

Description copied from class: ParameterizedObject

Checks if Parameter values are consistent. Must be implemented by every non-abstract subclass of ParameterizedObject.

Specified by:

checkParameters in class ParameterizedObject

Throws:

java.lang.Exception - if anything is wrong with the parameter values

randomizeParameters

public void randomizeParameters()

Description copied from class: ParameterizedObject

Sets values of any unset parameters randomly. Can and should be overridden in subclasses to handle a non-uniform distribution and for constraints on parameters.

Overrides:

randomizeParameters in class ParameterizedObject

getPayoff

public double getPayoff(int[] outcome,
                        int player)

Return the payoff for the given player in the given outcome. Assumes everything has already been set up.

Specified by:

getPayoff in class Game

Parameters:

outcome - array of integers representing which actions have been chosen by each player

player - the player whose payoff to return

getPayoff

public java.util.Vector getPayoff(int[] outcome)

Return a Vector with all players' utilities at the given outcome

Overrides:

getPayoff in class Game

Parameters:

outcome - an array containing the action choices of all players at the given outcome

getGameHelp

protected java.lang.String getGameHelp()

Description copied from class: Game

Return help screen information about the given game class.

Specified by:

getGameHelp in class Game

doGenerate

public void doGenerate()

Generate the game and store all of the players' utilities for each candidate in preferences matrix

Specified by:

doGenerate in class ParameterizedObject