@@ -402,6 +402,14 @@ static inline uint8_t SseqCommandByteCount(int cmd)

 		}

 }

+static std::uint32_t RandomU{ 0x12345678 };

+

+static std::uint16_t CalcRandom()

+{

+	RandomU = RandomU * 1664525 + 1013904223;

+	return static_cast<std::uint16_t>(RandomU >> 16);

+}

+

 static auto varFuncSet = [](int16_t, int16_t value) { return value; };

 static auto varFuncAdd = [](int16_t var, int16_t value) -> int16_t { return var + value; };

 static auto varFuncSub = [](int16_t var, int16_t value) -> int16_t { return var - value; };

@@ -417,9 +425,9 @@ static auto varFuncShift = [](int16_t var, int16_t value) -> int16_t

 static auto varFuncRand = [](int16_t, int16_t value) -> int16_t

 {

 	if (value < 0)

-		return -(std::rand() % (-value + 1));

+		return -(CalcRandom() % (-value + 1));

 	else

-		return std::rand() % (value + 1);

+		return CalcRandom() % (value + 1);

 };

 static inline std::function<int16_t (int16_t, int16_t)> VarFunc(int cmd)

@@ -732,7 +740,7 @@ void Track::Run()

 						this->overriding.extraValue = read8(pData);

 					int16_t minVal = read16(pData);

 					int16_t maxVal = read16(pData);

-					this->overriding.value = (std::rand() % (maxVal - minVal + 1)) + minVal;

+					this->overriding.value = (CalcRandom() % (maxVal - minVal + 1)) + minVal;

 					break;

 				}

@@ -166,8 +166,6 @@ bool XSFPlayer_NCSF::Load()

 	soundViewThreadHandle = CreateThread(nullptr, 0, soundViewThread, this, 0, nullptr);

 #endif

-	std::srand(static_cast<unsigned>(std::time(nullptr)));

-

 	PseudoFile file;

 	file.data = &this->sdatData;

 	this->sdat.reset(new SDAT(file, this->sseq));