cpp_ex4.cpp

#include <stdio.h>
#include <iostream>
#include <unistd.h>
 
using namespace std;
 
class programming
{
   private:
      int variable;
 
   public:
		int state;
		
		programming(){
			state= 0;
		}
			
		
      void next_state()
      {
		switch ( state )
		{
		case 0 : cout << "R__\n"; break;
		case 1: cout << "RY_\n"; break;
		case 2: cout << "__G\n"; break;
		case 3: cout << "_Y_\n"; state = -1; break;
		default: cout << "error"; break;
	}
		
		state++;
         
      }

};
 
main()
{
   
    
    programming *obj = new programming();
	
	while(true)
	{
		printf("\e[1;1H\e[2J"); // clear terminal hackkkkk
		obj->next_state();
		 
		usleep(1000*1000);
	}
	
 
   return 0;
}