<![CDATA[//******************************************************************
// IMPLEMENTATION FILE (player.cpp)
// This file implements the Player class member functions
//******************************************************************
#include "player.h"
// Private members of class
// CardDeck deck; Deck of cards
// CardPile onTable; Cards face up on the table
// CardPile discardPile; Cards on discard pile
//
// void TryRemove( CardPile&, CardPile& );
// void MoveFour( CardPile&, CardPile& );
// void MoveTwo( CardPile&, CardPile& );
//******************************************************************
void Player::PlayGame( /* in */ int numberOfShuffles,
/* out */ bool& won )
// Places each card in the deck face up on the table
// and applies rules for moving
// Precondition:
// numberOfShuffles is assigned
// Postcondition:
// After deck has been shuffled numberOfShuffles times,
// all cards have been moved one at a time from deck to onTable
// && Cards have (possibly) been moved from onTable to discardPile
// according to the rules of the game
// && won == true, if the game was won
// == false, otherwise
{
CardType tempCard; // Temporary card
deck.Shuffle(numberOfShuffles);
while (deck.Length() > 0)
{
deck.RemoveTop(tempCard);
onTable.InsertTop(tempCard);
TryRemove();
}
won = (onTable.Length() == 0);
deck.Recreate(onTable, discardPile);
}
//******************************************************************
void Player::TryRemove()
// If the first (top) four cards in onTable are the same suit,
// they are moved to discardPile. If the first card and the fourth
// card are the same suit, the second and third card are moved from
// onTable to discardPile. This process continues until no further
// moves can be made
// Precondition:
// Length of onTable > 0
// Postcondition:
// Cards have (possibly) been moved from onTable to discardPile
// according to the above rules
{
bool moveMade = true; // True if a move has been made
while (onTable.Length() >= 4 && moveMade)
if (onTable.CardAt(1).suit == onTable.CardAt(4).suit)
// A move will be made
if (onTable.CardAt(1).suit == onTable.CardAt(2).suit &&
onTable.CardAt(1).suit == onTable.CardAt(3).suit)
MoveFour(); // Four alike
else
MoveTwo(); // 1st and 4th alike
else
moveMade = false;
}
//******************************************************************
void Player::MoveFour()
// Moves the first four cards from onTable to discardPile
// Precondition:
// Length of onTable >= 4
// Postcondition:
// The first four cards have been removed from onTable and
// placed at the front of discardPile
{
CardType tempCard; // Temporary card
int count; // Loop counter
for (count = 1; count <= 4; count++)
{
onTable.RemoveTop(tempCard);
discardPile.InsertTop(tempCard);
}
}
//******************************************************************
void Player::MoveTwo()
// Moves the second and third cards from onTable to discardPile
// Precondition:
// Length of onTable >= 4
// Postcondition:
// The second and third cards have been removed from onTable and
// placed at the front of discardPile
// && The first card in onTable at entry is still the first card
// in onTable
{
CardType tempCard; // Temporary card
CardType firstCard; // First card in onTable
// Remove and save first card
onTable.RemoveTop(firstCard);
// Move second card
onTable.RemoveTop(tempCard);
discardPile.InsertTop(tempCard);
// Move third card
onTable.RemoveTop(tempCard);
discardPile.InsertTop(tempCard);
// Restore first card
onTable.InsertTop(firstCard);
}
]]>