path.cpp

/*

Programmer: Jennifer Leopold

Date: April 6, 2018

File: path.cpp

Purpose: This file contains the definitions of the functions

for the Path class.

*/

#include "path.h"

using namespace std;

Path::Path()

{

m_currentPosition = 0;

for (int i = 0; i < Path::NUM_POSITIONS_IN_PATH; i++)

m_pathPositions[i] = BLANK;

randomlyPositionSpecialEntries(NUM_WAIT_FOR_5_OR_8_ENTRIES,

WAIT_FOR_5_OR_8);

randomlyPositionSpecialEntries(NUM_JUNGLE_ENTRIES, JUNGLE);

randomlyPositionSpecialEntries(NUM_RHINO_ENTRIES, RHINO);

}

void Path::randomlyPositionSpecialEntries

(const int numSpecialEntries, const PathEntry specialEntry)

{

bool unOccupied;

int pos;

for (int i = 1; i <= numSpecialEntries; i++)

{

unOccupied = false;

while (!unOccupied)

{

pos = rand() % Path::NUM_POSITIONS_IN_PATH;

if (m_pathPositions[pos] == BLANK)

unOccupied = true;

}

m_pathPositions[pos] = specialEntry;

}

return;

}

unsigned int Path::getCurrentPosition() const

{

return(m_currentPosition);

}

PathEntry Path::getPathEntryAtPosition(const unsigned int pos)

const

{

if ((pos > 0) && (pos < Path::NUM_POSITIONS_IN_PATH))

return(m_pathPositions[pos]);

else

{

cout << "In Path::getPathEntryAtPosition, invalid array "

<< "position: " << pos << "!\n";

return(BLANK);

}

}

bool Path::incrementCurrentPosition(const unsigned int n)

{

bool success;

if (m_currentPosition + n < NUM_POSITIONS_IN_PATH)

{

m_currentPosition += n;

success = true;

}

else

{

cout << "\nYou cannot walk off the path!\n";

success = false;

}

return(success);

}

ostream& operator << (ostream& outs, const Path& p)

{

for (int i = 0; i < Path::NUM_POSITIONS_IN_PATH; i++)

{

if (p.m_pathPositions[i] != BLANK)

{

outs << i << ": "

<< PATH_ENTRIES[p.m_pathPositions[i]] << endl;

}

}

return(outs);

}