#include <cstdlib>
#include <iostream>
#include <windows.h>
using namespace std;
 
 
 
 
class VirtualStack
{ 
  int WordsAmmount;
  WORD *StackBase;
  WORD *SP;
 
 
 
   public:
    //Constructor Destructor
	VirtualStack(int);
	~VirtualStack();
 
    //Additional
	void DisplayStack();
	void ResetStackBytes();
	void ChangeStackElementByID(WORD,WORD);
	void ChangeSpRegisterByElementID(WORD);
 
 
	//Basic
	void Push(WORD);
	void Pop(WORD&);
 
};

#include "VirtualStack.h"
 
//Shit static variable related to some graphic stuff
static int SchemeNumber = 1;
//Cool shit that makes loading dots hehe
void LoadingDotsBySleepTime(int SleepingTime,int DotsAmmount)
{
	for(int x = 1; x<=DotsAmmount; x++)
	{
		cout << ".";
		Sleep(SleepingTime);
	}
}
VirtualStack::VirtualStack(int Size)
{ 
 
  WordsAmmount = Size;
  cout << "Creating Virtual Stack";LoadingDotsBySleepTime(500,5); 
  cout << endl << endl; 
  cout << "Allocating Virtual Bytes"; LoadingDotsBySleepTime(200,4);
  cout << endl << endl;
  StackBase = new WORD[Size];
  SP = &StackBase[WordsAmmount-1];
  Sleep(1000);
 
 
 
}
VirtualStack::~VirtualStack()
{
	delete[] StackBase;
	MessageBox(0,"Stack Destroyed","Stack Information",MB_OK);
}
 
void VirtualStack::DisplayStack()
{ 
	cout << "Preparing to Draw Scheme Number: " << SchemeNumber; LoadingDotsBySleepTime(400,5);
	cout << endl << endl;
  cout << "SP register: " << SP << endl << endl;
 
  for(int Obj = (WordsAmmount-1); Obj >= 0; Obj--)
  { 
	  cout << "[" << Obj << "] ";
	  cout << "[" << &StackBase[Obj] << "]" << " Cell Value: " << StackBase[Obj];
	  if( SP == &StackBase[Obj])
		  cout << " ---> SP Register Points Here";
	  cout << endl;
 
  }
  cout << endl << endl << endl;
  SchemeNumber++;
}
 
void VirtualStack::ResetStackBytes()
{
	for(int Obj = 0; Obj <= (WordsAmmount-1); Obj++)
	{
		StackBase[Obj]=0;
	}
}
 
void VirtualStack::Push(WORD WordValue)
{
    SP--;
   *SP = WordValue;
 
}
 
void VirtualStack::Pop(WORD &Destination)
{
  Destination = *SP;
  SP++;
 
}
 
void VirtualStack::ChangeStackElementByID(WORD ElementID,WORD ElementValue)
{
   StackBase[ElementID] = ElementValue;
}
 
void VirtualStack::ChangeSpRegisterByElementID(WORD ElementID)
{
	SP = &StackBase[ElementID]; 
}

 
 
#include "VirtualStack.h"
 
 
int main()
{ 
 
   VirtualStack VSObject(8);
   VSObject.ResetStackBytes();
 
 
   VSObject.Push(100);
   VSObject.Push(50);
   VSObject.Push(10);
   VSObject.DisplayStack();
   VSObject.ChangeSpRegisterByElementID(3);
   VSObject.DisplayStack();
   VSObject.ChangeStackElementByID(3,90);
   VSObject.DisplayStack();
 
 
 
 
 
   system("PAUSE");
	return 0;
}