Initial commit

BlueNoise/RNG.h

@@ -0,0 +1,37 @@
+#include <iostream>
+
+using namespace std;
+
+class RNG {
+private:
+	/* Period parameters */  
+	static const long N = 624;
+	static const long _M = 397;
+	static const unsigned long _MATRIX_A = 0x9908b0dfUL;   /* constant vector a */
+	static const unsigned long _UPPER_MASK = 0x80000000UL; /* most significant w-r bits */
+	static const unsigned long _LOWER_MASK = 0x7fffffffUL; /* least significant r bits */
+
+private:
+	unsigned long mt[N]; /* the array for the state vector  */
+	int mti;
+
+public:
+	RNG(unsigned long seed=5489UL);
+	RNG(unsigned long *init_key, int key_length);
+
+	void seed(unsigned long seed);
+
+		/* generates a random number on [0,0xffffffff]-interval */
+	unsigned long getInt32();
+		/* generates a random number on [0,0x7fffffff]-interval */
+	long getInt31();
+		/* generates a random number on [0,1]-real-interval */
+	double getDoubleLR();
+	float getFloatLR();
+		/* generates a random number on [0,1)-real-interval */
+	double getDoubleL();
+	float getFloatL();
+		/* generates a random number on (0,1)-real-interval */
+	double getDouble();
+	float getFloat();
+};