PJM>BK2 Input Log converter v0.2

/**
 * PJM>BK2 Input converter v0.2
 * Author: CoolKirby
 * Language: Java (with English comments)
 * First created: 9/12/15
 * Last revised: 9/15/15
 * Works with 1 and 2-player PJMs!
 * Does not support resets or changing discs
 * Only supports PSX Controller input for now, as this is the most common PJM setting
 * Supports both DualShock and PSX Controller output, DualShock is default, but Std Controller is more compact
*/

import java.io.IOException; //Necessary to prevent exceptions
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.FileWriter;
import java.io.PrintWriter;

/*
Input formats:
PJM:|Square|Cross|Circle|Triangle|R1|L1|R2|L2|Left|Down|Right|Up|Start|Select|
BK2:|Up|Down|Left|Right|Select|Start|Square|Triangle|Circle|Cross|L1|R1|L2|R2| L3|R3|MODE| <--DualShock only

PJM #XO^1234LDRUSs
BK2 UDLRsSQTOXlrLR...
num 0123456789ABCDEFa
*/

public class PJMConverter{
  public static void main(String[] args) throws IOException{
      try{
        countLinesDS("convert.pjm"); //File to read from (input - PJM)
      }catch(IOException e){
        try{
          countLinesStd("convert_pad.pjm"); //Standard PSX Controller file to read from (input - PJM)
        }catch(IOException ee){
          System.out.println(e.getMessage());
        }
      }
  }

  public static void countLinesDS(String path) throws IOException{
    Boolean DualShockOut=true; //In future, maybe check PJM for (rare) existing DualShock input
    countLines(path,DualShockOut); //If integrated into BizHawk, it could set this based on existing PSX settings
  }

  public static void countLinesStd(String path) throws IOException{
    Boolean DualShockOut=false;
    countLines(path,DualShockOut);
  }

  public static void countLines(String path, Boolean DualShockOut) throws IOException{
      FileReader a = new FileReader(path);
      BufferedReader num = new BufferedReader(a); //Open countLines text buffer

      String aLine;
      int numLines=0;

      while ((aLine=num.readLine()) != null){ //Count number of lines in the PJM
        numLines++;
      }
      num.close(); //Close countLines text buffer

      if(numLines<2){ //Assume error if input file only has one line
        System.out.println("Input PJM is too short! Conversion failed. Please check your file.");
        System.exit(5000);
      }

      OpenFile(path,numLines,DualShockOut);
  }

  public static void OpenFile(String path, int numLines, Boolean DualShockOut) throws IOException{
      String output="Input Log.txt"; //File to write to (output - BK2 Input Log.txt)

      FileReader fr = new FileReader(path); // Loads initial PJM
      BufferedReader reader = new BufferedReader(fr); // Reads whole lines in to speed up script

      String[] PJMData = new String[numLines]; // Create the array of PJM input with the calculated # of lines
      int inputStart;

      PJMData[0]=reader.readLine(); //Read the first line of the PJM separately
      if(PJMData[0].indexOf('#')==-1) //Find where the input starts
        inputStart=PJMData[0].indexOf('.');
      else
        inputStart=PJMData[0].indexOf('#'); //Failsafe in case Square was pressed on first frame
      PJMData[0]=PJMData[0].substring(inputStart,PJMData[0].length()); //Strip off the PJM header

      for(int i=1;i<numLines;i++){ //Read the rest of the PJM starting from frame 2
        PJMData[i]=reader.readLine();
        if(numLines-i==0){
          PJMData[i]=reader.readLine(); //"Catch" the elusive last input and add it to the table
        }
      }

      reader.close();

      parseFile(PJMData,numLines,path,output,DualShockOut);
  }

  public static void parseFile(String[] PJMData, int numLines, String path, String output, Boolean DualShockOut) throws IOException {
    int numBK2Lines=numLines+1;

    Boolean P2=false; //initialize as false

    if(PJMData[1].charAt(15)=='.') //discreetly checks for Player 2 input without confusing the P1 scanner
      P2=true;

    String[] BK2Data = new String[numBK2Lines]; //1 line larger to fit BK2 LogKey comment
    String[] BK2DataP2 = new String[numBK2Lines]; //second array for holding Player 2 input

    char[] Button = new char[14]; //array for pressed buttons on an input line

    //Add in BizHawk LogKey line for author's convenience
    if(P2){ //If Player 2 input exists, recognize it
      if(DualShockOut) //2 players + DualShock for both
        BK2Data[0]="LogKey:#Disc Select|Open|Close|Reset|#P1 LStick X|P1 LStick Y|P1 RStick X|P1 RStick Y|P1 Up|P1 Down|P1 Left|P1 Right|P1 Select|P1 Start|P1 Square|P1 Triangle|P1 Circle|P1 Cross|P1 L1|P1 R1|P1 L2|P1 R2|P1 L3|P1 R3|P1 MODE|#P2 LStick X|P2 LStick Y|P2 RStick X|P2 RStick Y|P2 Up|P2 Down|P2 Left|P2 Right|P2 Select|P2 Start|P2 Square|P2 Triangle|P2 Circle|P2 Cross|P2 L1|P2 R1|P2 L2|P2 R2|P2 L3|P2 R3|P2 MODE|";
      else //2 players + Standard Controller for both
        BK2Data[0]="LogKey:#Disc Select|Open|Close|Reset|#P1 Up|P1 Down|P1 Left|P1 Right|P1 Select|P1 Start|P1 Square|P1 Triangle|P1 Circle|P1 Cross|P1 L1|P1 R1|P1 L2|P1 R2|#P2 Up|P2 Down|P2 Left|P2 Right|P2 Select|P2 Start|P2 Square|P2 Triangle|P2 Circle|P2 Cross|P2 L1|P2 R1|P2 L2|P2 R2|";
    }else{
      if(DualShockOut) //1 player + DualShock
        BK2Data[0]="LogKey:#Disc Select|Open|Close|Reset|#P1 LStick X|P1 LStick Y|P1 RStick X|P1 RStick Y|P1 Up|P1 Down|P1 Left|P1 Right|P1 Select|P1 Start|P1 Square|P1 Triangle|P1 Circle|P1 Cross|P1 L1|P1 R1|P1 L2|P1 R2|P1 L3|P1 R3|P1 MODE|";
      else //1 player + Standard Controller
        BK2Data[0]="LogKey:#Disc Select|Open|Close|Reset|#P1 Up|P1 Down|P1 Left|P1 Right|P1 Select|P1 Start|P1 Square|P1 Triangle|P1 Circle|P1 Cross|P1 L1|P1 R1|P1 L2|P1 R2|";
    }
    for(int i=1,p=0;i<numBK2Lines;i++,p++){ // The big parser! Player 1 Input
      BK2Data[i]="";
      for(int b=0;b<14;b++) // The default blank Input Log line
        Button[b]='.';

      if(PJMData[p].charAt(0)=='#') //P1 Square
        Button[6]='Q';
      if(PJMData[p].charAt(1)=='X') //P1 Cross
        Button[9]='X';
      if(PJMData[p].charAt(2)=='O') //P1 Circle
        Button[8]='O';
      if(PJMData[p].charAt(3)=='^') //P1 Triangle
        Button[7]='T';
      if(PJMData[p].charAt(4)=='1') //P1 R1
        Button[11]='r';
      if(PJMData[p].charAt(5)=='2') //P1 L1
        Button[10]='l';
      if(PJMData[p].charAt(6)=='3') //P1 R2
        Button[13]='R';
      if(PJMData[p].charAt(7)=='4') //P1 L2
        Button[12]='L';
      if(PJMData[p].charAt(8)=='L') //P1 D-Pad Left
        Button[2]='L';
      if(PJMData[p].charAt(9)=='D') //P1 D-Pad Down
        Button[1]='D';
      if(PJMData[p].charAt(10)=='R') //P1 D-Pad Right
        Button[3]='R';
      if(PJMData[p].charAt(11)=='U') //P1 D-Pad Up
        Button[0]='U';
      if(PJMData[p].charAt(12)=='S') //P1 Start
        Button[5]='S';
      if(PJMData[p].charAt(13)=='s') //P1 Select
        Button[4]='s';
      for(int s=0;s<14;s++) // Set buttons to input line positions
        BK2Data[i]=BK2Data[i]+Button[s];

      if(P2){ //If Player 2 input exists, parse it!
        BK2DataP2[i]="";
        for(int b=0;b<14;b++) // The default blank Input Log line
          Button[b]='.';

        if(PJMData[p].charAt(15)=='#') //P2 Square
          Button[6]='Q';
        if(PJMData[p].charAt(16)=='X') //P2 Cross
          Button[9]='X';
        if(PJMData[p].charAt(17)=='O') //P2 Circle
          Button[8]='O';
        if(PJMData[p].charAt(18)=='^') //P2 Triangle
          Button[7]='T';
        if(PJMData[p].charAt(19)=='1') //P2 R1
          Button[11]='r';
        if(PJMData[p].charAt(20)=='2') //P2 L1
          Button[10]='l';
        if(PJMData[p].charAt(21)=='3') //P2 R2
          Button[13]='R';
        if(PJMData[p].charAt(22)=='4') //P2 L2
          Button[12]='L';
        if(PJMData[p].charAt(23)=='L') //P2 D-Pad Left
          Button[2]='L';
        if(PJMData[p].charAt(24)=='D') //P2 D-Pad Down
          Button[1]='D';
        if(PJMData[p].charAt(25)=='R') //P2 D-Pad Right
          Button[3]='R';
        if(PJMData[p].charAt(26)=='U') //P2 D-Pad Up
          Button[0]='U';
        if(PJMData[p].charAt(27)=='S') //P2 Start
          Button[5]='S';
        if(PJMData[p].charAt(28)=='s') //P2 Select
          Button[4]='s';
        for(int s=0;s<14;s++) // Set buttons to input line positions
          BK2DataP2[i]=BK2DataP2[i]+Button[s];
      }
    }
     /*
     PJM:|Sq|Cros|Circ|Trian|....R1|...L1|....R2|......L2|..Left|.Down|Rt|Up|St|Se|
           6    9    8     7     11    10     13       12      2     1  3  0  5  4
           #    X    O     ^      1     2      3        4      L     D  R  U  S  s
     BK2:|Up|Down|Left|Right|Select|Start|Square|Triangle|Circle|Cross|L1|R1|L2|R2|L3|R3|MODE| <--DualShock only
           0    1    2     3      4     5      6        7      8     9 10 11 12 13 14 15   16
           U    D    L     R      s     S      Q        T      O     X  l  r  L  R  .  .    .

      PJM ..............||0|    BK2  |   -1,...|  128,  128,  128,  128,.................|
      num 0123456789ABCDEFa  output  |   -1,...|  128,  128,  128,  128, + .............. + ...|
     */

    System.out.println(numBK2Lines+" lines in finished BK2");

    //Write File
    FileWriter write = new FileWriter(output);
    PrintWriter print_line = new PrintWriter(write); //use PrintWriter to print "%n" character on both Windows and Unix

    //Output all BK2 Input, including beginning and ending lines
    print_line.printf("%s"+"%n",BK2Data[0]); //First line is LogKey, no appended data needed

    for(int l=1;l<=numLines;l++){
      if(P2){
        if(DualShockOut) //2 players + DualShock
          print_line.printf("|   -1,...|  128,  128,  128,  128,"+"%s"+"...|  128,  128,  128,  128,"+"%s"+"...|"+"%n",BK2Data[l],BK2DataP2[l]);
        else //2 players + Standard Controller
          print_line.printf("|   -1,...|"+"%s"+"|"+"%s"+"|"+"%n",BK2Data[l],BK2DataP2[l]);
      }else{
        if(DualShockOut) //1 player + DualShock
          print_line.printf("|   -1,...|  128,  128,  128,  128,"+"%s"+"...|"+"%n",BK2Data[l]);
        else //1 player + Standard Controller
          print_line.printf("|   -1,...|"+"%s"+"|"+"%n",BK2Data[l]);
      }
    }

    print_line.close(); // Close file printing stream
    System.out.println("Done! Check out Input Log.txt");
  }

}