import java.util.Scanner;  // Player.java ... RJM Programming ... May, 2014
import java.util.Random;

public class Player {
private String username;
private String name;
private int points;

private static int numPlayers = 0;
private static String playerNamesList = " ";

public Player ( ) {
System.out.print("Please enter Player Name (enter exits): ");
Scanner in = new Scanner(System.in);
String inplayer = in.nextLine().trim();
if (inplayer != "") {
if (getName(inplayer) != "") {
setName( inplayer );
setUsername( getName(inplayer) );
setPoints( getPoints(username) );
} else {
numPlayers++;
setName( inplayer );
setUsername( "" );
setPoints( 0 );
playerNamesList = playerNamesList + String.format(username + ";" + name + ";" + points) + " ";
}
}
}

public Player ( String newUsername ) {
if (getUsername(newUsername) != "") {
setName( getName(newUsername) );
setUsername( newUsername );
setPoints( getPoints(newUsername) );
} else if (getName(newUsername) != "") {
setName( getName(newUsername) );
setUsername( newUsername );
setPoints( getPoints(newUsername) );
}
}

public Player( String newUsername, String newName, int newPoints ) {
if (getUsername(newUsername) == "") {
numPlayers++;
setName( newName );
setUsername( newUsername );
setPoints( newPoints );
playerNamesList = playerNamesList + String.format(username + ";" + name + ";" + points) + " ";
} else if (newName != "") {
setName( getName(newUsername) );
setUsername( newUsername );
setPoints( getPoints(newUsername) );
playerNamesList = playerNamesList.replace(String.format(username + ";" + name + ";" + points), String.format(username + ";" + name + ";" + newPoints));
setPoints( newPoints );
} else {
System.err.println( "Need a name." );
}
}

public String getUsername( String proposedUsername ) {
if (playerNamesList.indexOf(" " + proposedUsername + ";") != -1) {
return proposedUsername;
} else {
return "";
}
}

public String getName( String proposedUsername ) {
if (playerNamesList.indexOf(" " + proposedUsername + ";") != -1) {
int npos = playerNamesList.indexOf(" " + proposedUsername + ";") + proposedUsername.length() + 2;
return playerNamesList.substring(npos, playerNamesList.substring(npos).indexOf(";") + npos);
} else if (playerNamesList.indexOf(";" + proposedUsername + ";") != -1) {
String[] splitArray = playerNamesList.substring(0,(playerNamesList.indexOf(";" + proposedUsername + ";")-0)).split(" ");
return getUsername(splitArray[splitArray.length - 1]);
} else {
return "";
}
}

public int getPoints( String proposedUsername ) {
if (playerNamesList.indexOf(" " + proposedUsername + ";") != -1) {
int npos = playerNamesList.indexOf(" " + proposedUsername + ";") + proposedUsername.length() + 2;
int nnpos = playerNamesList.substring(npos).indexOf(";") + npos + 1;
setPoints(Integer.parseInt(playerNamesList.substring(nnpos, playerNamesList.substring(nnpos).indexOf(" ") + nnpos)));
return Integer.parseInt(playerNamesList.substring(nnpos, playerNamesList.substring(nnpos).indexOf(" ") + nnpos));
} else if (playerNamesList.indexOf(";" + proposedUsername + ";") != -1) {
String[] splitArray = playerNamesList.substring(0,(playerNamesList.indexOf(";" + proposedUsername + ";")-0)).split(" ");
return getPoints(splitArray[splitArray.length - 1]);
} else {
return 0;
}
}

public String getUsername( ) {
return username;
}

public void setUsername( String newUsername ) {
if (newUsername == "") {
  String[] splitArray = name.split("\\s+");
  try {
    username = splitArray[0].substring(0,1) + String.format("" + numPlayers);
  } catch (Exception e) {
    username = "";
  }
} else {
  username = newUsername;
}
}


public String getName( ) {
return name;
}

public void setName( String newName ) {
name = newName;
}

public int getPoints( ) {
return points;
}

public static int getnumbPlayers( ) {
return numPlayers;
}

public void setPoints( int newPoints ) {
if ( newPoints >= 0 ) {
playerNamesList = playerNamesList.replace(String.format(username + ";" + name + ";" + points), String.format(username + ";" + name + ";" + newPoints));
points = newPoints;
} else {
points = 0;
System.err.println( "Points cannot be negative." );
System.err.println( "Points set to 0." );
}
}

@Override
public String toString() {
return String.format(username + ";" + name + ";" + points);
}

public boolean equals(Object object) {
if(object instanceof Player && ((Player)object).getUsername() == this.username){
    return true;
} else {
    return false;
}
}

public static void main(String[] args) {
  Player playerleft, playerright;
  int pointsleft = 0, pointsright = 0;
  int other = 0, winneris = 0;
  Random rnum = new Random();
  Random rwinner = new Random();
  for (int ic=1; ic<=args.length; ic++) {
     if (((ic - 1) % 2) == 0) {
      playerleft = new Player("", args[ic - 1].replace("_", " "), 0); 
      if (playerleft.equals(playerleft)) System.out.println(playerleft.toString());
      String[] splitArray1 = playerNamesList.substring(playerNamesList.indexOf(";" + args[ic - 1].replace("_", " ") + ";") + args[ic - 1].length() + 2).split(" ");
      pointsleft = Integer.parseInt(splitArray1[0]); //        playerleft.getPoints(args[ic - 1].replace("_", " "));
      if (ic > 1) {
        other = rnum.nextInt(ic - 1) + 0;
        playerright = new Player((args[other].replace("_", " ")));
        String[] splitArray2 = playerNamesList.substring(playerNamesList.indexOf(";" + args[other].replace("_", " ") + ";") + args[other].length() + 2).split(" ");
        pointsright = Integer.parseInt(splitArray2[0]); //        playerleft.getPoints(args[ic - 1].replace("_", " "));
        winneris = rwinner.nextInt(1) + 0;
        if (winneris == 0) {
          System.out.println("Game between " + ic + " and " + (other + 1) + " is won by " + ic); 
          playerNamesList = playerNamesList.replace(String.format(";" + args[ic - 1].replace("_", " ") + ";" + pointsleft), String.format(";" + args[ic - 1].replace("_", " ") + ";" + (pointsleft + 1)));
        } else {
          System.out.println("Game between " + ic + " and " + (other + 1) + " is won by " + (other + 1)); 
          playerNamesList = playerNamesList.replace(String.format(";" + args[other].replace("_", " ") + ";" + pointsright), String.format(";" + args[other].replace("_", " ") + ";" + (pointsright + 1)));
        }     
      }
     } else {
      playerright = new Player("", args[ic - 1].replace("_", " "), 0); 
      if (playerright.equals(playerright)) System.out.println(playerright.toString());
      String[] splitArray3 = playerNamesList.substring(playerNamesList.indexOf(";" + args[ic - 1].replace("_", " ") + ";") + args[ic - 1].length() + 2).split(" ");
      pointsright = Integer.parseInt(splitArray3[0]); //        playerleft.getPoints(args[ic - 1].replace("_", " "));
      if (ic > 2) {
        other = rnum.nextInt(ic - 1) + 0;
        playerleft = new Player((args[other].replace("_", " ")));
        String[] splitArray4 = playerNamesList.substring(playerNamesList.indexOf(";" + args[other].replace("_", " ") + ";") + args[other].length() + 2).split(" ");
        pointsleft = Integer.parseInt(splitArray4[0]); //        playerleft.getPoints(args[ic - 1].replace("_", " "));
      }
      winneris = rwinner.nextInt(1) + 0;
      if (winneris == 0) {
          System.out.println("Game between " + ic + " and " + (other + 1) + " is won by " + (other + 1)); 
          playerNamesList = playerNamesList.replace(String.format(";" + args[other].replace("_", " ") + ";" + pointsleft), String.format(";" + args[other].replace("_", " ") + ";" + (pointsleft + 1)));
      } else {
          System.out.println("Game between " + ic + " and " + (other + 1) + " is won by " + ic); 
          playerNamesList = playerNamesList.replace(String.format(";" + args[ic - 1].replace("_", " ") + ";" + pointsright), String.format(";" + args[ic - 1].replace("_", " ") + ";" + (pointsright + 1)));
      }     
     }
  }
  System.out.println(playerNamesList);
}
}