basic-computer-games/14_Bowling/java/Bowling.java

import java.util.Scanner;
import java.lang.Math;

/**
 * Game of Bowling
 * <p>
 * Based on the BASIC game of Bowling here
 * https://github.com/coding-horror/basic-computer-games/blob/main/14%20Bowling/bowling.bas
 * <p>
 * Note:  The idea was to create a version of the 1970's BASIC game in Java, without introducing
 * new features - no additional text, error checking, etc has been added.
 * 
 * Converted from BASIC to Java by Darren Cardenas.
 */
 
public class Bowling {  
  
  private final Scanner scan;  // For user input  
  
  public Bowling() {
    
    scan = new Scanner(System.in);
    
  }  // End of constructor Bowling 

  public void play() {
    
    showIntro();
    startGame();
    
  }  // End of method play  
    
  private static void showIntro() {
    
    System.out.println(" ".repeat(33) + "BOWL");
    System.out.println(" ".repeat(14) + "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY");
    System.out.println("\n\n");

  }  // End of method showIntro        
  
  private void startGame() {

    int ball = 0;
    int bell = 0;
    int frame = 0;
    int ii = 0;  // Loop iterator
    int jj = 0;  // Loop iterator
    int kk = 0;  // Loop iterator       
    int numPlayers = 0;
    int pinsDownBefore = 0;
    int pinsDownNow = 0;
    int player = 0;
    int randVal = 0;
    int result = 0;
        
    int[] pins = new int[16];
    
    int[][] scores = new int[101][7];
    
    String userResponse = "";

    System.out.println("WELCOME TO THE ALLEY");
    System.out.println("BRING YOUR FRIENDS");   
    System.out.println("OKAY LET'S FIRST GET ACQUAINTED");
    System.out.println("");
    System.out.println("THE INSTRUCTIONS (Y/N)");
    System.out.print("? ");
    
    userResponse = scan.nextLine();
    
    if (userResponse.toUpperCase().equals("Y")) {      
      printRules();
    }
    
    System.out.print("FIRST OF ALL...HOW MANY ARE PLAYING? ");
    numPlayers = Integer.parseInt(scan.nextLine());
    
    System.out.println("");    
    System.out.println("VERY GOOD...");    

    // Begin outer while loop
    while (true) {
      
      for (ii = 1; ii <= 100; ii++) {      
        for (jj = 1; jj <= 6; jj++) {        
          scores[ii][jj] = 0;        
        }      
      }
      
      frame = 1;      

      // Begin frame while loop
      while (frame < 11) {

        // Begin loop through all players
        for (player = 1; player <= numPlayers; player++) {
          
          pinsDownBefore = 0;
          ball = 1;
          result = 0;
          
          for (ii = 1; ii <= 15; ii++) {            
            pins[ii] = 0;            
          }
          
          while (true) {
            
            // Ball generator using mod '15' system
            
            System.out.println("TYPE ROLL TO GET THE BALL GOING.");
            System.out.print("? ");
            scan.nextLine();
            
            kk = 0;
            pinsDownNow = 0;
            
            for (ii = 1; ii <= 20; ii++) {
              
              randVal = (int)(Math.random() * 100) + 1;            
              
              for (jj = 1; jj <= 10; jj++) {
                
                if (randVal < 15 * jj) {                               
                  break;
                }              
              }                                
              pins[15 * jj - randVal] = 1;            
            }
            
            // Pin diagram
            
            System.out.println("PLAYER: " + player + " FRAME: " + frame + " BALL: " + ball);
            
            for (ii = 0; ii <= 3; ii++) {
              
              System.out.println("");
              
              System.out.print(" ".repeat(ii));

              for (jj = 1; jj <= 4 - ii; jj++) {

                kk++;
                
                if (pins[kk] == 1) {                
                  
                  System.out.print("O ");
                  
                } else {
                  
                  System.out.print("+ ");               
                }
              }            
            }
            
            System.out.println("");
            
            // Roll analysis
            
            for (ii = 1; ii <= 10; ii++) {            
              pinsDownNow += pins[ii];                        
            }            
            
            if (pinsDownNow - pinsDownBefore == 0) {            
              System.out.println("GUTTER!!");            
            }
            
            if (ball == 1 && pinsDownNow == 10) {                        
              System.out.println("STRIKE!!!!!");  
              
              // Ring bell                          
              for (bell = 1; bell <= 4; bell++) {              
                System.out.print("\007");              
                try {
                  Thread.sleep(500);
                } catch (InterruptedException e) {
                  Thread.currentThread().interrupt();
                }
              } 
              result = 3;
            }
            
            if (ball == 2 && pinsDownNow == 10) {
              System.out.println("SPARE!!!!");
              result = 2;            
            }
            
            if (ball == 2 && pinsDownNow < 10) {
              System.out.println("ERROR!!!");
              result = 1;            
            }
            
            if (ball == 1 && pinsDownNow < 10) {
              System.out.println("ROLL YOUR 2ND BALL");            
            }
            
            // Storage of the scores
            
            System.out.println("");
            
            scores[frame * player][ball] = pinsDownNow;
            
            if (ball != 2) {            
              ball = 2;
              pinsDownBefore = pinsDownNow;            

              if (result != 3) {            
                scores[frame * player][ball] = pinsDownNow - pinsDownBefore;              
                if (result == 0) {
                  continue;
                }
              } else {
                scores[frame * player][ball] = pinsDownNow;
              }
              
            }
            break;
          }
          
          scores[frame * player][3] = result;                      
          
        }  // End loop through all players
        
        frame++;
        
      }  // End frame while loop  

      System.out.println("FRAMES");
      
      System.out.print(" ");
      for (ii = 1; ii <= 10; ii++) {        
        System.out.print(ii + " ");                
      }
      
      System.out.println("");
      
      for (player = 1; player <= numPlayers; player++) {              
        for (ii = 1; ii <= 3; ii++) {          
          System.out.print(" "); 
          for (jj = 1; jj <= 10; jj++) {            
            System.out.print (scores[jj * player][ii] + " ");                        
          }
          System.out.println("");          
        }
        System.out.println("");
      }
      
      System.out.println("DO YOU WANT ANOTHER GAME");
      System.out.print("? ");
      
      userResponse = scan.nextLine();
      
      if (!String.valueOf(userResponse.toUpperCase().charAt(0)).equals("Y")) {
        break;      
      }
      
    }  // End outer while loop    
    
  }  // End of method startGame  
    
  public static void printRules() {
    
    System.out.println("THE GAME OF BOWLING TAKES MIND AND SKILL.DURING THE GAME");
    System.out.println("THE COMPUTER WILL KEEP SCORE.YOU MAY COMPETE WITH");
    System.out.println("OTHER PLAYERS[UP TO FOUR].YOU WILL BE PLAYING TEN FRAMES");
    System.out.println("ON THE PIN DIAGRAM 'O' MEANS THE PIN IS DOWN...'+' MEANS THE");
    System.out.println("PIN IS STANDING.AFTER THE GAME THE COMPUTER WILL SHOW YOUR");
    System.out.println("SCORES .");
   
  }  // End of method printRules
  
  public static void main(String[] args) {
    
    Bowling game = new Bowling();
    game.play();
    
  }  // End of method main
    
}  // End of class Bowling