Initial commit of mtgonline project

C++/libcockatrice_rng/libcockatrice/rng/rng_abstract.cpp

@@ -0,0 +1,33 @@
+#include "rng_abstract.h"
+
+#include <QDebug>
+
+QVector<int> RNG_Abstract::makeNumbersVector(int n, int min, int max)
+{
+    const int bins = max - min + 1;
+    QVector<int> result(bins);
+    for (int i = 0; i < n; ++i) {
+        int number = rand(min, max);
+        if ((number < min) || (number > max)) {
+            qDebug() << "rand(" << min << "," << max << ") returned " << number;
+        } else {
+            result[number - min]++;
+        }
+    }
+    return result;
+}
+
+double RNG_Abstract::testRandom(const QVector<int> &numbers) const
+{
+    int n = 0;
+    for (int i = 0; i < numbers.size(); ++i) {
+        n += numbers[i];
+    }
+    double expected = (double)n / (double)numbers.size();
+    double chisq = 0;
+    for (int i = 0; i < numbers.size(); ++i) {
+        chisq += ((double)numbers[i] - expected) * ((double)numbers[i] - expected) / expected;
+    }
+
+    return chisq;
+}