unfinished star pattern project

main.cpp

#include <iostream>
#include <conio.h>
#include <windows.h>
#include <cstdlib>

using namespace std;

// going to (x,y) in terminal windows
void gotoxy(short int x, short int y)
{
    COORD pos = { x, y };    
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos);
}

// find x-position of cursor
int wherex()
{
    CONSOLE_SCREEN_BUFFER_INFO csbi;    
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);    
    return csbi.dwCursorPosition.X;
}

// find y-position of cursor
int wherey()
{
    CONSOLE_SCREEN_BUFFER_INFO csbi;    
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);    
    return csbi.dwCursorPosition.Y;
}

int main()
{
	// getting size of terminal windows and store it in rows and columns variables.
	CONSOLE_SCREEN_BUFFER_INFO csbi;
    int columns, rows;
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
    columns = csbi.srWindow.Right - csbi.srWindow.Left + 1;
    rows = csbi.srWindow.Bottom - csbi.srWindow.Top + 1;
	int x, y;
	int i,j = 1;
	system("cls");
	for(int i = 1;i<=columns;i++)
	{
		gotoxy(i,0);
		cout<<"*";
		Sleep(100);

		gotoxy(i,5);
		cout<<"*";
		Sleep(100);

		gotoxy(i,10);
		cout<<"*";
		Sleep(100);

		gotoxy(columns-i,4);
		cout<<"*";
		Sleep(100);

		gotoxy(columns-1i,9);
		cout<<"*";
		Sleep(100);

		gotoxy(columns-i,14);
		cout<<"*";
		Sleep(100);
	}
	getch();
	return 0;
}