Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#include <stdlib.h>
#include <stdio.h>
#include "vstdlib/random.h"
#include "math.h"
void main( int argc, char **argv )
{
if( argc != 2 )
{
fprintf( stderr, "Usage: genrandomvectors <numvects>\n" );
exit( -1 );
}
int nVectors = atoi( argv[1] );
int i;
RandomSeed( 0 );
for( i = 0; i < nVectors; i++ )
{
float z = RandomFloat( -1.0f, 1.0f );
float t = RandomFloat( 0, 2 * M_PI );
float r = sqrt( 1.0f - z * z );
float x = r * cos( t );
float y = r * sin( t );
printf( "Vector( %f, %f, %f ),\n", x, y, z );
}
}