src/common/functions.cc


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/*	functions.cc
 *	This file is part of the Osirion project
 */

#include "functions.h"

float min(float a, float b) {
	return (a < b ? a : b);
}

float max(float a, float b) {
	return (a > b ? a : b);
}

int min(int a, int b) {
	return (a < b ? a : b);
}

int max(int a, int b) {
	return (a > b ? a : b);
}

float randomf(const float max) {
	return ((float) rand() / (float) RAND_MAX) * max;
}

unsigned randomi(const unsigned int max) {
	return ((unsigned int)(rand() % max));
}

float degreesf(float angle) {	
	float r = angle;
	while (r <= -180.0f)
		r += 360.0f;
	while (r >= 180.0f)
		r -= 360.0f;
	return r;
}

float sgnf(float value)
{
	if (value < 0 )
		return -1;
	else if (value == 0 )
		return 0;

	return 1;
}