/*
 * RandomAskingStrategy.java
 *
 * Created on April 17, 2004, 4:29 AM
 */

package simulations.core.strategy.askingSupportStrategy;

import java.util.ArrayList;

import simulations.core.Player;

/**
 * This class describes an asking support strategy that ask randomly 
 * to a random number of player support
 * @author  tom
 */
public class RandomAskingStrategy extends AskingStrategy {
    
    /** Creates a new instance of RandomAskingStrategy */
    public RandomAskingStrategy() {
        super();
        name="RandomAskingStrategy";
        memoryParam=false;
        abr="13";
    }
        
    /** Returns the list of players to ask support.
     * @return Returns the list of players to ask support.
     * @param attackedPlayer The attacked player
     * @param player The attacking player
     * @param playerList The list of <B>avalaible</B> player
     */    
    public java.util.ArrayList getPlayersToAskSupport(simulations.core.Player player, simulations.core.Player attackedPlayer, java.util.ArrayList playerList) {
        playerList.remove(player);
        int size = playerList.size();
        if (size<=0) {
            return new ArrayList();
        }
        ArrayList listPlayerToAsk = new ArrayList();
        if (size==1) {
            float nb = randomGenerator.nextFloat();
            if (nb>0.5) {
                listPlayerToAsk.add(playerList.get(0));
            }
        } else {
            int nbPlayerToAsk=randomGenerator.nextInt(size);
            for(int i=0;i<nbPlayerToAsk;i++) {
                Player play = (Player)playerList.get(randomGenerator.nextInt(playerList.size()));
                listPlayerToAsk.add(play);
                playerList.remove(play);
                size--;
            }
        }
        return listPlayerToAsk;
    }
    
    /** This method is called by the judge to inform players of the last turn
     * @param turn The turn
     * @param player The owner of the strategy
     * @param remainingPlayers The list of the remaining players
     */    
    public void updateLastTurn(simulations.core.history.Turn turn, simulations.core.Player player, java.util.ArrayList remainingPlayers) {
    }
    
    /** This method returns the description of the strategy
     * @return returns the description of the strategy
     */    
    public String getDescription() {
        return "Asking support strategy :\n"+
        "I choose randomly a number x and I choose\n"+
        "randomly x players to ask support\n";
    }
    
}