Use drand48() instead of qrand() since it's more fair

4 files changed, 11 insertions, 3 deletions

diff --git a/sigbattle/Sigbattle.cpp b/sigbattle/Sigbattle.cpp
index bf1e8953..638c2198 100644
--- a/sigbattle/Sigbattle.cpp
+++ b/sigbattle/Sigbattle.cpp
@@ -52,6 +52,7 @@ static void messageHandler(QtMsgType type, const char* message)
 int main(int argc, char* argv[])
 {
     qInstallMsgHandler(messageHandler);
+    srand48(time(NULL));
     
     // TODO
     KAboutData about("sigbattle", "sigbattle", ki18n("Sigbattle"), "0.1.1", ki18n(""), KAboutData::License_GPL_V3, ki18n("©2009 Ben Boeckel"), ki18n("This program offers a way to battle with creatures from a Sigmod."), "");
diff --git a/sigcore/Fraction.cpp b/sigcore/Fraction.cpp
index 6d3b9643..665d6b6c 100644
--- a/sigcore/Fraction.cpp
+++ b/sigcore/Fraction.cpp
@@ -22,6 +22,9 @@
 // Header include
 #include "Fraction.h"
 
+// Standard includes
+#include <cstdlib>
+
 using namespace Sigcore;
 
 Fraction::Fraction(const int numerator, const int denominator)
@@ -77,12 +80,12 @@ void Fraction::reduce()
 
 bool Fraction::poll() const
 {
-    return (qrand() % m_denominator) < m_numerator;
+    return (drand48() * m_denominator) < m_numerator;
 }
 
 bool Fraction::poll(const int numerator, const int denominator)
 {
-    return (qrand() % denominator) < numerator;
+    return (drand48() * denominator) < numerator;
 }
 
 Fraction& Fraction::operator=(const Fraction& rhs)
diff --git a/sigcore/Hat.h b/sigcore/Hat.h
index 87ea6b3d..acbb070b 100644
--- a/sigcore/Hat.h
+++ b/sigcore/Hat.h
@@ -30,6 +30,9 @@
 #include <QtCore/QtGlobal>
 #include <QtCore/QMap>
 
+// Standard includes
+#include <cstdlib>
+
 namespace Sigcore
 {
 /**
@@ -112,7 +115,7 @@ template<class T> inline T Hat<T>::pick() const
 {
     if (!m_count)
         return T();
-    int choice = qrand() % m_count;
+    int choice = drand48() * m_count;
     QList<T> keys = m_items.keys();
     foreach (const T& key, keys)
     {
diff --git a/sigmodr/Sigmodr.cpp b/sigmodr/Sigmodr.cpp
index a1b45164..9336551d 100644
--- a/sigmodr/Sigmodr.cpp
+++ b/sigmodr/Sigmodr.cpp
@@ -52,6 +52,7 @@ static void messageHandler(QtMsgType type, const char* message)
 int main(int argc, char* argv[])
 {
     qInstallMsgHandler(messageHandler);
+    srand48(time(NULL));
     
     // TODO
     KAboutData about("sigmodr", "sigmodr", ki18n("Sigmodr"), "0.1.1", ki18n(""), KAboutData::License_GPL_V3, ki18n("©2007-2009 Ben Boeckel"), ki18n("This program offers an easy interface so that Sigmods can be easily created."), "");