Archive/TombEngine
0
0
Fork 0
mirror of https://github.com/TombEngine/TombEngine.git synced 2025-04-28 15:57:59 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add simple safety checks to RNG

Browse source
This commit is contained in:
Sezz 2024-11-24 21:28:07 +11:00
parent e5e625d78b
commit 202c94f02e
2 changed files with 22 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

26
TombEngine/Math/Random.cpp
View file

@ -8,21 +8,33 @@
namespace TEN::Math::Random namespace TEN::Math::Random
{ {
static std::mt19937 Engine; static auto Generator = std::mt19937();
int GenerateInt(int low, int high) int GenerateInt(int min, int max)
{ {
return (Engine() / (Engine.max() / (high - low + 1) + 1) + low); if (min >= max)
{
TENLog("Attempted to generate integer with minimum value greater than maximum value.", LogLevel::Warning);
return min;
}
return (((Generator() / (Generator.max()) / (max - min + 1)) + 1) + min);
} }
float GenerateFloat(float low, float high) float GenerateFloat(float min, float max)
{ {
return ((high - low) * Engine() / Engine.max() + low); if (min >= max)
{
TENLog("Attempted to generate float with minimum value greater than maximum value.", LogLevel::Warning);
return min;
}
return ((((max - min) * Generator()) / Generator.max()) + min);
} }
short GenerateAngle(short low, short high) short GenerateAngle(short min, short max)
{ {
return (short)GenerateInt(low, high); return (short)GenerateInt(min, min);
} }
Vector2 GenerateDirection2D() Vector2 GenerateDirection2D()

6
TombEngine/Math/Random.h
View file

@ -6,9 +6,9 @@ namespace TEN::Math::Random
{ {
// Value generation // Value generation
int GenerateInt(int low = 0, int high = SHRT_MAX); int GenerateInt(int min = 0, int max = SHRT_MAX);
float GenerateFloat(float low = 0.0f, float high = 1.0f); float GenerateFloat(float min = 0.0f, float max = 1.0f);
short GenerateAngle(short low = SHRT_MIN, short high = SHRT_MAX); short GenerateAngle(short min = SHRT_MIN, short max = SHRT_MAX);
// 2D geometric generation // 2D geometric generation