Question

The purpose of this assignment is to write a class Checker that can be used as a part of a checker game
program. Open an New Project in Qt Creator, and name it ChGame. Right click on the name of the class,
and add a new C++ class named Checker. This will create the new les Checker.h and Checker.cpp. You
will need to modify both Checker.h and Checker.cpp for this assignment. (The main function I used for
testing my functions is shown on the back of this page.)
The class Checker should have three private members:
• xposition is an integer between 0 and 7 which represents the x position of the piece.
• yposition is an integer between 0 and 7 which represents the y position of the piece.
• queen is an integer which starts at 0 but may be changed to 1 later on.
The class Checker should have two public constructors:
• The rst constructor takes no input. It sets xposition to zero, yposition to zero, and queen to zero.
• The second constructor takes two inputs. It sets xposition and yposition to the inputs and sets queen
to zero.
The class Checker should have ve public member functions:
• Checker should have a getter (accessor) for xposition named getX() that returns an integer.
• Checker should have a getter (accessor) for yposition named getY() that returns an integer.
• Checker should have a getter (accessor) for queen named getQueen() that returns an integer.
• Checker should have a setter (mutator) for queen that sets the member queen to 1.
• Checker should have function move that accepts an integer.
If the parameter is 0, it moves the piece to the northeast and returns 0. (Increases xposition by
one and decreases yposition by 1.)
If the parameter is 1, it moves the piece to the west and returns 0. (Decreases xposition by one
and decreases yposition by 1.)
If the parameter is 2, it moves the piece to the southeast and returns 0. (Increases xposition by
one and increases yposition by 1.)
If the parameter is 3, it moves the piece to the southwest and returns 0. (decreases xposition
by one and increases yposition by 1.)
If the parameter is not between 0 and 3 or if the resulting move would move the piece o the
board (so the position is no longer between 0 and 7), the function does nothing but returns 1.

Answer 1

Given below is the code for the question. Please do rate the answer if it helped. Thank you.

Checker.h
-----
#include <iostream>
#include <string>
using namespace std;
class Checker{
   private:
       int xposition, yposition, queen;
   public:
       Checker();
       Checker(int x, int y);
       int getX();
       int getY();
       int getQueen();
       void setQueen();
       int move(int dir);
};

Checker.cpp
======
#include <iostream>
#include "Checker.h"
using namespace std;

Checker::Checker(){
   xposition = 0;
   yposition = 0;
   queen = 0;
}
Checker::Checker(int x, int y){
   if(x >= 0 && x <= 7)
       xposition = x;
   else
       xposition = 0;
  
   if(y >= 0 && y <= 7)
       yposition = y;
   else
       yposition = 0;
}

int Checker::getX(){
   return xposition;
}

int Checker::getY(){
   return yposition;
}

int Checker::getQueen(){
   return queen;
}

void Checker::setQueen(){
   queen = 1;
}

int Checker::move(int dir){
   if(dir < 0 || dir > 3)
       return 1;
  
   int x , y;
   if(dir == 0){
       x = xposition +1;
       y = yposition -1;
   }
   else if(dir == 1){
       x = xposition - 1;
       y = yposition - 1;
   }
   else if(dir == 2){
       x = xposition + 1;
       y = yposition + 1;
   }
   else{
       x = xposition - 1;
       y = yposition + 1;
   }
  
   if(x >= 0 && x <= 7 && y >= 0 && y <= 7)
   {
       xposition = x;
       yposition = y;
       return 0;
   }
   else
       return 1;
}