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Thread: Help on simple easy program

  1. #1
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    Default Help on simple easy program

    Hello guys! I have decided to try to program this really simple program that prints out a game! Basically there are three pieces: slider, diag, and jumper, it is a 5x5 board, and slider can only move one direction in any direction, diag moves diagonal, and jumper moves to a random spot. They don't move if there is a wall. Each turn it prints out a new board(lol i know bad but whatever) and when a piece moves onto another the one that was there before dies, so if jumper moves onto slider, slider dies. My code compiles but when it runs, it prints out a bunch of boards that show random stuff, like sometimes after a piece dies it comes back. here is my very bad code:
    /**
     * The board:
     *        y
     *     1 2 3 4 5
     *  1  * * * * *
     *  2  * * * * *
     *x 3  * * * * *
     *  4  * * * * *
     *  5  * * * * *
    **/
     
    public class Piece{
            static int sx, sy, dx, dy, jx, jy;
            static int pieces = 3;
            static boolean sAlive = true;
            static boolean dAlive = true;
            static boolean jAlive = true;
            public static void printBoard(){
                    for (int x = 1; x <= 5; x++){
                            for (int y = 1; y <= 5; y++){
                                    if (x==jx && y == jy){
                                            if (jAlive){
                                                    System.out.print("J");
                                            }
                                            else{
                                                    System.out.print("-");
                                            }
                                    }
                                    else if (x==dx && y == dy){
                                            if (dAlive){
                                                    System.out.print("D");
                                            }
                                            else{
                                                    System.out.print("-");
                                            }
                                    }
                                    else if (x==sx && y == sy){
                                            if (sAlive){
                                                    System.out.print("S");
                                            }
                                            else{
                                                    System.out.print("-");
                                            }
                                    }
                                    else{
                                            System.out.print("-");
                                    }
                                    System.out.print(" ");
                            }
                            System.out.println();
                    }
            }
            public static void makeNumbers(){
                sx = (int)(Math.random()*5+1);
                    sy = (int)(Math.random()*5+1);
                    dx = (int)(Math.random()*5+1);
                    dy = (int)(Math.random()*5+1);
                    while (dx == sx && dy == sy){
                            dx = (int)(Math.random()*5+1);
                            dy = (int)(Math.random()*5+1);
                    }
                    jx = (int)(Math.random()*5+1);
                    jy = (int)(Math.random()*5+1);
                    while (jx == sx && jy == sy){
                            jx = (int)(Math.random()*5+1);
                            jy = (int)(Math.random()*5+1);
                    }
                    while (dx == jx && dy == jy){
                            jx = (int)(Math.random()*5+1);
                            jy = (int)(Math.random()*5+1);
                    }
            }
            public static void main(String [] args){
                    int direction;
                    makeNumbers();
                    printBoard();
                    Slider s = new Slider();
                    Diag d = new Diag();
                    Jumper j = new Jumper();
                    while (pieces > 0){
                                    if (sAlive){
                                    direction = (int)(Math.random()*4+1);
                                    sx = s.movePieceX(sx, direction);
                                    sy = s.movePieceY(sy, direction);
                                    if (sx == dx && sy == dy){
                                            dAlive = false;
                                            pieces--;
                                    }
                                    if (sx == jx && sx == jy){
                                            jAlive = false;
                                            pieces--;
                                    }
                                    System.out.println();
                                    System.out.println("Sam's turn!");
                                    printBoard();
                            }
                            if (dAlive){
                                    direction = (int)(Math.random()*4+1);
                                    dx = d.movePieceX(dx, direction);
                                    dy = d.movePieceY(dy, direction);
                                    if (dx==0 || dy==0){
                                            dx=0;
                                            dy=0;
                                    }
                                    if (sx == dx && sy == dy){
                                            sAlive = false;
                                            pieces--;
                                    }
                                    if (dx == jx && dx == jy){
                                            jAlive = false;
                                            pieces--;
                                    }
                                    System.out.println();
                                    System.out.println("Donald's turn!");
                                    printBoard();
                            }
                            if (jAlive){
                                    jx = j.movePieceX();
                                    jy = j.movePieceY();
                                    if (jx == dx && jy == dy){
                                            dAlive = false;
                                            pieces--;
                                    }
                                    if (sx == jx && sx == jy){
                                            sAlive = false;
                                            pieces--;
                                    }
                                    System.out.println();
                                    System.out.println("Jimmy's turn!");
                                    printBoard();
                            }
                    }
            }
    }
     
    public class Slider extends Piece{
            public int movePieceX(int x, int direction){
                    if (direction == 1){
                            if (x==1){
                                    return 0;
                            }
                            else{
                                    return x-1;
                            }
                    }
                    else if (direction == 2){
                            if (x==0){
                                    return 1;
                            }
                            else{
                                    return x+1;
                            }
                    }
                    else if (direction == 3){
                            return x;
                    }
                    else{
                            return x;
                    }
            }
            public int movePieceY(int y, int direction){
                    if (direction == 1){
                            return y;
                    }
                    else if (direction == 2){
                            return y;
                    }
                    else if (direction == 3){
                            if (y==1){
                                return 0;
                            }
                            else{
                                    return y-1;
                            }
                    }
                    else{
                            if (y==5){
                                    return 0;
                            }
                            else{
                                    return y+1;
                            }
                    }
            }
    }
     
    public class Diag extends Piece{
            public int movePieceX(int x, int direction){
                    if (direction == 2 || direction == 3){
                            if (x==5){
                                    return 0;
                            }
                            else{
                                    return x+1;
                            }
                    }
                    else{
                            if (x==1){
                                    return 0;
                            }
                            else{
                                    return x-1;
                            }
                    }
            }
            public int movePieceY(int y, int direction){
                    if (direction == 2 || direction == 1){
                            if (y==5){
                                    return 0;
                            }
                            else{
                                    return y+1;
                            }
                    }
                    else{
                            if (y==1){
                                    return 0;
                            }
                            else{
                                    return y-1;
                            }
                    }
            }
    }
     
    public class Jumper extends Piece{
            public int movePieceX(){
                    return (int)(Math.random()*5+1);
            }
            public int movePieceY(){
                    return (int)(Math.random()*5+1);
            }
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Help on simple easy program

    How are you trying to debug the code to find out why it is not doing what you want it to do?

    Can you copy and paste here some output and add some comments explaining what the program did that was wrong and show what it should have done?
    If you don't understand my answer, don't ignore it, ask a question.

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