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Diffstat (limited to 'Bachelor/Prog1/examples/ch03/Fig03_10.cpp')
| -rw-r--r-- | Bachelor/Prog1/examples/ch03/Fig03_10.cpp | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/Bachelor/Prog1/examples/ch03/Fig03_10.cpp b/Bachelor/Prog1/examples/ch03/Fig03_10.cpp new file mode 100644 index 0000000..5ebbd59 --- /dev/null +++ b/Bachelor/Prog1/examples/ch03/Fig03_10.cpp @@ -0,0 +1,111 @@ +// Fig. 3.10: fig03_10.cpp
+// Craps.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+// contains function prototypes for functions srand and rand
+#include <cstdlib>
+
+#include <ctime> // contains prototype for function time
+
+int rollDice( void ); // function prototype
+
+int main()
+{
+ // enumeration constants represent game status
+ enum Status { CONTINUE, WON, LOST };
+
+ int sum;
+ int myPoint;
+
+ Status gameStatus; // can contain CONTINUE, WON or LOST
+
+ // randomize random number generator using current time
+ srand( time( 0 ) );
+
+ sum = rollDice(); // first roll of the dice
+
+ // determine game status and point based on sum of dice
+ switch ( sum ) {
+
+ // win on first roll
+ case 7:
+ case 11:
+ gameStatus = WON;
+ break;
+
+ // lose on first roll
+ case 2:
+ case 3:
+ case 12:
+ gameStatus = LOST;
+ break;
+
+ // remember point
+ default:
+ gameStatus = CONTINUE;
+ myPoint = sum;
+ cout << "Point is " << myPoint << endl;
+ break; // optional
+
+ } // end switch
+
+ // while game not complete ...
+ while ( gameStatus == CONTINUE ) {
+ sum = rollDice(); // roll dice again
+
+ // determine game status
+ if ( sum == myPoint ) // win by making point
+ gameStatus = WON;
+ else
+ if ( sum == 7 ) // lose by rolling 7
+ gameStatus = LOST;
+
+ } // end while
+
+ // display won or lost message
+ if ( gameStatus == WON )
+ cout << "Player wins" << endl;
+ else
+ cout << "Player loses" << endl;
+
+ return 0; // indicates successful termination
+
+} // end main
+
+// roll dice, calculate sum and display results
+int rollDice( void )
+{
+ int die1;
+ int die2;
+ int workSum;
+
+ die1 = 1 + rand() % 6; // pick random die1 value
+ die2 = 1 + rand() % 6; // pick random die2 value
+ workSum = die1 + die2; // sum die1 and die2
+
+ // display results of this roll
+ cout << "Player rolled " << die1 << " + " << die2
+ << " = " << workSum << endl;
+
+ return workSum; // return sum of dice
+
+} // end function rollDice
+
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
+ * Hall. All Rights Reserved. *
+ * *
+ * DISCLAIMER: The authors and publisher of this book have used their *
+ * best efforts in preparing the book. These efforts include the *
+ * development, research, and testing of the theories and programs *
+ * to determine their effectiveness. The authors and publisher make *
+ * no warranty of any kind, expressed or implied, with regard to these *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or *
+ * consequential damages in connection with, or arising out of, the *
+ * furnishing, performance, or use of these programs. *
+ *************************************************************************/
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