forked from a1batross/Paranoia2_original
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/*
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randomrange.h - simple class of implementation random values
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Copyright (C) 2011 Uncle Mike
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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#ifndef RANDOMRANGE_H
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#define RANDOMRANGE_H
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#include <vector.h>
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#include <stringlib.h>
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class RandomRange
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{
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public:
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RandomRange() { m_flMin = m_flMax = 0; m_bDefined = false; }
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RandomRange( float fValue ) { m_flMin = m_flMax = fValue; m_bDefined = true; }
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RandomRange( float fMin, float fMax) { m_flMin = fMin; m_flMax = fMax; m_bDefined = true; }
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RandomRange( const char *szToken )
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{
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char *mutableToken = new char[Q_strlen(szToken)];
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strcpy(mutableToken, szToken);
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char *cOneDot = NULL;
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m_bDefined = true;
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for( char *c = mutableToken; *c; c++ )
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{
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if( *c == '.' )
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{
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if( cOneDot != NULL )
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{
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// found two dots in a row - it's a range
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*cOneDot = 0; // null terminate the first number
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m_flMin = Q_atof( szToken ); // parse the first number
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*cOneDot = '.'; // change it back, just in case
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c++;
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m_flMax = Q_atof( c ); // parse the second number
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return;
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}
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else cOneDot = c;
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}
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else cOneDot = NULL;
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}
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delete[] mutableToken;
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// no range, just record the number
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m_flMax = m_flMin = Q_atof( szToken );
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}
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// a simple implementation of RANDOM_FLOAT for now
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float Random() { return RANDOM_FLOAT(m_flMin, m_flMax); }
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float Random() const { return RANDOM_FLOAT(m_flMin, m_flMax); }
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float GetInstance() { return Random(); }
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float GetOffset( float fBasis ) { return Random() - fBasis; }
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bool IsDefined() { return m_bDefined; }
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// array access...
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operator float *() { return &m_flMin; }
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operator const float *() const { return &m_flMin; }
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float m_flMin, m_flMax; // NOTE: should be first so array acess is working correctly
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bool m_bDefined;
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};
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#endif//RANDOMRANGE_H
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