diff options
-rw-r--r-- | src/common/Utilities/Random.cpp | 8 | ||||
-rw-r--r-- | src/common/Utilities/Random.h | 4 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/common/Utilities/Random.cpp b/src/common/Utilities/Random.cpp index cc013110b01..31318e8f52d 100644 --- a/src/common/Utilities/Random.cpp +++ b/src/common/Utilities/Random.cpp @@ -61,6 +61,14 @@ float frand(float min, float max) return float(GetRng()->Random() * (max - min) + min); } +Milliseconds randtime(Milliseconds const& min, Milliseconds const& max) +{ + long long diff = max.count() - min.count(); + ASSERT(diff >= 0); + ASSERT(diff <= (uint32)-1); + return min + Milliseconds(urand(0, diff)); +} + uint32 rand32() { return GetRng()->BRandom(); diff --git a/src/common/Utilities/Random.h b/src/common/Utilities/Random.h index 5610651a83b..5dea6117f97 100644 --- a/src/common/Utilities/Random.h +++ b/src/common/Utilities/Random.h @@ -19,6 +19,7 @@ #define Random_h__ #include "Define.h" +#include "Duration.h" #include <limits> #include <random> @@ -34,6 +35,9 @@ uint32 urandms(uint32 min, uint32 max); /* Return a random number in the range 0 .. UINT32_MAX. */ uint32 rand32(); +/* Return a random time in the range min..max (up to millisecond precision). Only works for values where millisecond difference is a valid uint32. */ +Milliseconds randtime(Milliseconds const& min, Milliseconds const& max); + /* Return a random number in the range min..max */ float frand(float min, float max); |