utils.h

来自「游戏开发人工智能技术-AI.Techniques.for.Game.Progra」· C头文件 代码 · 共 66 行

#ifndef UTILS_H
#define UTILS_H

#include <stdlib.h>
#include <math.h>
#include <sstream>
#include <string>
#include <iostream>


using namespace std;

//----------------------------------------------------------------------------
//	some random number functions.
//----------------------------------------------------------------------------

//returns a random integer between x and y
inline int	  RandInt(int x,int y) {return rand()%(y-x+1)+x;}

//returns a random float between zero and 1
inline double RandFloat()		   {return (rand())/(RAND_MAX+1.0);}

//returns a random bool
inline bool   RandBool()
{
	if (RandInt(0,1)) return true;

	else return false;
}

//returns a random float in the range -1 < n < 1
inline double RandomClamped()	   {return RandFloat() - RandFloat();}



//-----------------------------------------------------------------------
//	
//	some handy little functions
//-----------------------------------------------------------------------

//converts an integer to a std::string
string itos(int arg);

//converts an float to a std::string
string ftos (float arg);

//	clamps the first argument between the second two
void Clamp(double &arg, float min, float max);
void Clamp(int &arg, int min, int max);

//------------------------------------------------------------------------
//
// the structure used to define a vertex
//------------------------------------------------------------------------

struct SPoint
{
	double x, y;
	
  SPoint(double a = 0, double b = 0):x(a),y(b){}
};




#endif