1 files changed, 113 insertions, 0 deletions
diff --git a/oop2w2/NumberGuessGame.cpp b/oop2w2/NumberGuessGame.cpp
new file mode 100644
index 0000000..ec1fc4e
--- /dev/null
+++ b/oop2w2/NumberGuessGame.cpp
@@ -0,0 +1,113 @@
+/*
+ * NO NOT ADAPT THIS FILE
+ */
+
+#include "NumberGuessGame.h"
+
+#include <cmath>
+#include <cstdlib>
+#include <ctime>
+
+#include <iomanip>
+#include <iostream>
+
+#define INITRANDOM  100
+
+///////////////////////////////////////////////////////////////////////////////
+//  constructors / destructor
+
+NumberGuessGame::NumberGuessGame()
+{
+    initialize( unsigned(::time(nullptr)) );
+}
+
+NumberGuessGame::NumberGuessGame( unsigned uSeed )
+{
+    initialize( uSeed );
+}
+
+NumberGuessGame::~NumberGuessGame()
+{
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//  create new game + boundaries
+
+void
+NumberGuessGame::createNewNumber()
+{
+    double  dInterval   = ::pow( 20.0, 1.0 + 2.0*uniform() );
+
+    m_uLowerBound       = unsigned( dInterval * uniform() );
+    m_uUpperBound       = unsigned( m_uLowerBound + dInterval );
+    m_uNumberToGuess    = m_uLowerBound + unsigned( dInterval * uniform() );
+
+    m_uNumberOfGuesses  = 0;
+}
+
+unsigned
+NumberGuessGame::getLowerBound() const
+{
+    return m_uLowerBound;
+}
+
+unsigned
+NumberGuessGame::getUpperBound() const
+{
+    return m_uUpperBound;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//  guessing process
+
+enum NumberGuessGame::RESULT
+NumberGuessGame::guess( unsigned uValue )
+{
+    m_uNumberOfGuesses  += 1;
+
+    if ( uValue == m_uNumberToGuess )
+    {
+        std::cout << std::setw(3) << m_uNumberOfGuesses << ": number guessed : " << uValue << std::endl;
+        return FOUND;
+    }
+
+    if ( uValue < m_uNumberToGuess )
+    {
+        std::cout << std::setw(3) << m_uNumberOfGuesses << ": number too low : " << uValue << std::endl;
+        return TOOLOW;
+    }
+    else
+    {
+        std::cout << std::setw(3) << m_uNumberOfGuesses << ": number too high: " << uValue << std::endl;
+        return TOOHIGH;
+    }
+}
+
+unsigned
+NumberGuessGame::numberOfGuesses()   const
+{
+    return m_uNumberOfGuesses;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//  private members
+
+void
+NumberGuessGame::initialize( unsigned uSeed )
+{
+    m_uLowerBound       = 0;
+    m_uUpperBound       = 1;
+    m_uNumberToGuess    = unsigned( -1 );
+    m_uNumberOfGuesses  = unsigned( -1 );
+
+    ::srand( uSeed );
+
+    for (unsigned n=0; n<INITRANDOM; n++ )
+        ::rand();
+}
+
+double
+NumberGuessGame::uniform() const
+{
+    return ::rand() / double(RAND_MAX);
+}