Add NumberGenerator.h for different methods

NumberGenerator.h

@@ -0,0 +1,72 @@
+#include "Point.h"
+
+#include <list>
+#include <cstdlib>  // for srand, rand
+
+class NumberGenerator
+{
+private:
+    static const int OFFSET = 0;
+    static const int WIDTH = 700;
+    static const int HEIGHT = 700;
+
+public:
+    static std::list<Point> get_random_numbers(int valCount)
+    {
+        std::list<Point> points;
+
+        //srand(static_cast <unsigned> (time(0)));
+        srand(static_cast <unsigned> (0)); // fixed seed for testing
+
+        float x = 0;
+        float y = 0;
+        for (int i = 0; i < valCount; ++i)
+        {
+            x = OFFSET + static_cast <float> (rand()) / (static_cast <float> (RAND_MAX / (WIDTH - 2*OFFSET)));
+            y = OFFSET + static_cast <float> (rand()) / (static_cast <float> (RAND_MAX / (HEIGHT - 2*OFFSET)));
+
+            points.push_back(Point(x, y));
+        }
+
+        return points;
+    }
+
+    static std::list<Point> get_rectangle_numbers(int valCount)
+    {
+        std::list<Point> points;
+
+        float diff = (2.f * HEIGHT / valCount);
+
+        float x = 0;
+        float y = 0;
+        for (int i = 0; i < valCount; ++i)
+        {
+            x = (i%2 == 0) ? OFFSET : WIDTH - OFFSET;
+            y = diff/2 + (i/2) * diff;
+
+            points.push_back(Point(x, y));
+        }
+
+        return points;
+    }
+
+    static std::list<Point> get_circle_numbers(int valCount)
+    {
+        std::list<Point> points;
+
+        float rad = HEIGHT / 2; //8.0f;
+        float deg = (float)(2 * 3.14159 / valCount);
+
+        float x = 0;
+        float y = 0;
+        for (int i = 0; i < valCount; ++i)
+        {
+            x = WIDTH/2 + rad * cosf(i * deg);
+            y = HEIGHT/2 + rad * sinf(i * deg);
+
+            points.push_back(Point(x, y));
+        }
+
+        return points;
+    }
+};