/*

displays stars up to 15 per line,
demonstrates conio.h, while loops and
practicing implementing functions

Hawk

*/

#include <iostream.h> // Use <iostream>
#include <conio.h>
#include <windows.h> // Don't need it if Sleep() is not needed

//********** begin increase

void Increase()
{

int StarsOutNow = 0;
int StarsPerLine = 1;

while (StarsPerLine < 16)
{
    while (StarsOutNow < StarsPerLine)
	{
    StarsOutNow = 0;
	     while (StarsOutNow < StarsPerLine)
		 {
	     cout << "*";
	     StarsOutNow++;
		 }
	}
cout << endl;
StarsPerLine++;
Sleep(50);
} // end while loop



}


// *********** end increase function

// *********** begin decrease function

void Decrease()
{

int StarsOutNow = 0;
int StarsPerLine = 14;

while (StarsPerLine > 0)
{
    while (StarsOutNow < StarsPerLine)
	{
    StarsOutNow = 0;

	     while (StarsOutNow < StarsPerLine)
		 {
	     cout << "*";
	     StarsOutNow++;
		 }
	}

cout << endl;
StarsOutNow = 0;
StarsPerLine--;
Sleep(50);
} // end while loop



} // ********** end decrease function and begin main


int main()
{

cout << "Press any key to start outputting stars, press any key to stop" << endl;
getch();


while(!kbhit()) // infinite loop until key pressed
	{
	Increase();
	Decrease();
	}

getch();

cout << "Press any key to exit. Good bye." << endl;
getch();

return(0);
}