// Chapter 5 of C++ How to Program
// tortoiseandhare.cpp
#include <iostream>

using std::cout;
using std::endl;

#include <cstdlib>

#include <ctime>

#include <iomanip>

using std::setw;

const int RACE_END = 70;

/* Write prototype for moveTortoise here */
void moveTortoise(int &);
/* Write prototype for moveHare here */
void moveHare(int &);
/* Write prototype for printCurrentPositions here */
void printCurrentPositions(int &,int &);

int main()
{
   int tortoise = 1, hare = 1, timer = 0;  

   srand( time( 0 ) );
   cout<<"A program to show the match between the tortoise and the hare!"<<endl<<endl;

   cout << "ON YOUR MARK, GET SET\nBANG               !!!!"
    <<endl
        << "\nAND THEY’RE OFF    !!!!\n\n";
  
   while ( tortoise != RACE_END && hare != RACE_END ) {
      /* Write call for moveTortoise here */
    moveTortoise(tortoise);
      /* Write call for moveHare here */
    moveHare(hare);
      /* Write call for printCurrentPositions here */
    printCurrentPositions(tortoise,hare);
      ++timer;
   }

   if ( tortoise >= hare )
      cout << "\nTORTOISE WINS!!! YAY!!!\n";
   else
      cout << "Hare wins. Yuch.\n";

   cout << "TIME ELAPSED = " << timer << " seconds" << endl;
   return 0;
}

/* Write function definition for moveTortoise here */
void moveTortoise(int & turtlePtr)
{
   int x = 1 + rand() % 10;

   if ( x >= 1 && x <= 5 )        // fast plod
      turtlePtr += 3;
   else if ( x == 6 || x == 7 )   // slip
      turtlePtr -= 6;
   else                           // slow plod`
      ++( turtlePtr );
  
   if ( turtlePtr < 1 )
      turtlePtr = 1;
   else if ( turtlePtr > RACE_END )
      turtlePtr = RACE_END;
}

/* Write function definition for moveHare here */
void moveHare(int &rabbitPtr)
{
   int y = 1 + rand() % 10;

   /* Write statements that move rabbit */
   if( y>= 1 &&y<=2)
    rabbitPtr=rabbitPtr;
   else if(y>=3&&y<=4)
    rabbitPtr+=9;
   else if(y==5)
    rabbitPtr-=12;
   else if(y>=6&&y<=8)
    rabbitPtr+=1;
   else
    rabbitPtr-=2;

   if(rabbitPtr<1)
    rabbitPtr=1;
   else if(rabbitPtr> RACE_END)
    rabbitPtr= RACE_END;

   /* Write statements that test if rabbit is before
      the starting point or has finished the race */
}

/* Write function definition for printCurrentPositions here */
void printCurrentPositions(int &bunnyPtr,int &snapperPtr)
{
   if ( bunnyPtr == snapperPtr )
      cout << setw( bunnyPtr ) << "OUCH!!!";     
   else if ( bunnyPtr < snapperPtr )
      cout << setw( bunnyPtr ) << "H"
           << setw( snapperPtr - bunnyPtr ) << "T";
   else
      cout << setw( snapperPtr ) << "T"
           << setw( bunnyPtr - snapperPtr ) << "H";

   cout << "\n";
}

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