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Merge pull request #3157 from IvanSavenko/switch_rng

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Use minstd_rand instead of mt19937 to avoid save game bloat
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Ivan Savenko 2023-11-08 13:42:22 +02:00 committed by GitHub
commit 63e99a32d7
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1 changed files with 5 additions and 1 deletions
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6
lib/CRandomGenerator.h
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@ -14,7 +14,11 @@
VCMI_LIB_NAMESPACE_BEGIN
using TGenerator = std::mt19937;
/// Generator to use for all randomization in game
/// minstd_rand is selected due to following reasons:
/// 1. Its randomization quality is below mt_19937 however this is unlikely to be noticeable in game
/// 2. It has very low state size, leading to low overhead in size of saved games (due to large number of random generator instances in game)
using TGenerator = std::minstd_rand;
using TIntDist = std::uniform_int_distribution<int>;
using TInt64Dist = std::uniform_int_distribution<int64_t>;
using TRealDist = std::uniform_real_distribution<double>;