example.cpp

#include "Rectangle_Drawer.h"

#include <iostream>
#include <conio.h>
#include <string>
using namespace std;

int main()
{
	bool Run = true;
	int x1, x2, y1, y2;	
	string name;
	cout << "Rectangle name: "; cin >> name;
	cout << "Left-Up corner X position: "; cin >> x1;
	cout << "\nLeft-Up corner Y position: "; cin >> y1;
	cout << "\nRight-Down corner X position: "; cin >> x2;
	cout << "\nRight-Down corner Y position: "; cin >> y2;
	system("cls");

	RectangleX Rec;
	Rec.SetCorners(x1, y1, x2, y2);
	Rec.SetName(name);

	Rec.Display();
	cout << "Here is your rectangle named '" << name << "' !";
	while (Run)
	{
		if (_kbhit())
		{
			return 0;
		}
	}


	
}

Rectangle_Drawer.cpp

#include "Rectangle_Drawer.h"

#include <iostream>
using namespace std;

RectangleX::RectangleX(int C1x, int C1y, int C4x, int C4y, string name, char l)
{
	Corner1x = C1x; Corner1y = C1y;
	Corner4x = C4x; Corner4y = C4y;
	GenerateCorners();
	Rectangle_Name = name;
	Look = l;


}
//private:
void RectangleX::GenerateCorners()
{
	Corner2x = Corner1x; Corner2y = Corner4y;
	Corner3x = Corner4x; Corner3y = Corner1y;
}
//public:

void RectangleX::SetCorners(int C1x, int C1y, int C4x, int C4y)
{
	Corner1x = C1x; Corner1y = C1y;
	Corner4x = C4x; Corner4y = C4y;
	RectangleX::GenerateCorners();
}

void RectangleX::SetName(string name)
{
	Rectangle_Name = name;
}

void RectangleX::SetLook(char l)
{
	Look = l;
}

void RectangleX::Display()
{
	if (Corner1x <= 0 || Corner2x <= 0 || Corner3x <= 0 || Corner4x <= 0 ||
		Corner1y <= 0 || Corner2y <= 0 || Corner4x <= 0 || Corner4y <= 0)
	{
		system("cls");
		cout << "Bad Corner values! CornerX and CornerY mustn't be 0 or less!";
		return;
	}
	int x;
	int y;
	
	x = Corner1x;
	y = Corner1y;
		while (x < Corner4x)
		{
			gotoxy(x, y); cout <<Look; x++;
		}
	x = Corner1x;
	y = Corner1y;
		while (y < Corner4y)
		{
			gotoxy(x, y); cout << Look; y++;
		}
	x = Corner4x;
	y = Corner1y;
		while (y < Corner4y)
		{
			gotoxy(x, y); cout << Look; y++;
		}
	x = Corner1x;
	y = Corner4y;
		while (x < Corner4x+1)
		{
			gotoxy(x, y); cout << Look; x++;
		}
		return;
}

Rectangle_Drawer.h

#pragma once
#include <iostream>
#include <Windows.h>
using namespace std;
class RectangleX
{
	int Corner1x; int Corner1y;  //13
	int Corner2x; int Corner2y;  //24
	int Corner3x; int Corner3y;
	int Corner4x; int Corner4y; 
	string Rectangle_Name;
	char Look;

	void GenerateCorners(); //creates 2 and 3 corner using 1 and 4
public:
	RectangleX(int C1x = 2, int C1y = 2, int C4x = 5, int C4y = 5, string name = "Null", char l = 219);
	void SetCorners(int C1x, int C1y, int C4x, int C4y);
	void SetName(string name);
	void SetLook(char l);
	void Display();
};

inline void gotoxy(int x, int y)
{
	COORD c;
	c.X = x - 1;
	c.Y = y - 1;
	SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), c);
}