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Fixed possible crash in cProbabDistrib

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It could divide through 0 which causes a crash
This commit is contained in:
STRWarrior 2015-05-14 16:49:13 +02:00
parent bd73dcedd4
commit 67b6b71a5b
1 changed files with 1 additions and 0 deletions
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src/ProbabDistrib.cpp
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@ -133,6 +133,7 @@ int cProbabDistrib::MapValue(int a_OrigValue) const
// Linearly interpolate between Lo and Hi: // Linearly interpolate between Lo and Hi:
int ProbDif = m_Cumulative[Hi].m_Probability - m_Cumulative[Lo].m_Probability; int ProbDif = m_Cumulative[Hi].m_Probability - m_Cumulative[Lo].m_Probability;
ProbDif = (ProbDif != 0) ? ProbDif : 1;
int ValueDif = m_Cumulative[Hi].m_Value - m_Cumulative[Lo].m_Value; int ValueDif = m_Cumulative[Hi].m_Value - m_Cumulative[Lo].m_Value;
return m_Cumulative[Lo].m_Value + (a_OrigValue - m_Cumulative[Lo].m_Probability) * ValueDif / ProbDif; return m_Cumulative[Lo].m_Value + (a_OrigValue - m_Cumulative[Lo].m_Probability) * ValueDif / ProbDif;
} }