#ifndef TRANDOM_INCLUDED

#define TRANDOM_INCLUDED

#include "tcommon.h"

#undef DVAPI

#undef DVVAR

#ifdef TNZCORE_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

/*! Generates a pseudorandom sequence

*/

class DVAPI TRandom

{

public:

	TRandom(UINT seed = 0);

	~TRandom();

	/*! resets the pseudorandom engine to the first number of the sequence */

	void reset();

	/*! set a new seed for the pseudorandom engine and reset the sequence */

	void setSeed(UINT seed);

	/*! returns an unsigned integer number in the range [0, end[ */

	UINT getUInt(UINT end = c_maxuint); // [0,end[

	/*! returns an integer number in the range [begin, end[ */

	int getInt(int begin, int end);

	/*! returns a float number in the range [0, 1[ */

	float getFloat();

	/*! returns a float number in the range [0, end[ */

	float getFloat(float end);

	/*! returns a float number in the range [begin, end[ */

	float getFloat(float begin, float end);

	/*! returns a random bool value */

	bool getBool();

	/*! returns a double number in the range [0, 1[ */

	double getDouble();

private:

	UINT seed;

	int idx1, idx2;

	UINT ran[56];

	enum RANDOM_FLOAT_TYPE {

		RANDOM_FLOAT_TYPE_NONE,

		RANDOM_FLOAT_TYPE_1,

		RANDOM_FLOAT_TYPE_2,

		RANDOM_FLOAT_TYPE_HOW_MANY

	};

	static RANDOM_FLOAT_TYPE RandomFloatType;

	inline UINT getNextUINT();

	inline void setRandomFloatType();

};

#endif //TRANDOM_INCLUDED