mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-09 01:07:16 +01:00
445 lines
14 KiB
C++
445 lines
14 KiB
C++
// ------------------------------------------------------------------------------------------------
|
|
#include "Library/Numeric/Random.hpp"
|
|
#include "Base/Shared.hpp"
|
|
#include "Base/Buffer.hpp"
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
#include <ctime>
|
|
#include <memory>
|
|
#include <random>
|
|
#include <cstdlib>
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
#ifdef SQMOD_OS_WINDOWS
|
|
#include <process.h>
|
|
#else
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
namespace SqMod {
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
static std::unique_ptr< std::mt19937 > RG32_MT19937 =
|
|
std::unique_ptr< std::mt19937 >(new std::mt19937(GenerateSeed()));
|
|
|
|
static std::unique_ptr< std::mt19937_64 > RG64_MT19937 =
|
|
std::unique_ptr< std::mt19937_64 >(new std::mt19937_64(GenerateSeed()));
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
static std::uniform_int_distribution< Int8 > Int8_Dist(std::numeric_limits< Int8 >::min(),
|
|
std::numeric_limits< Int8 >::max());
|
|
static std::uniform_int_distribution< Uint8 > Uint8_Dist(std::numeric_limits< Uint8 >::min(),
|
|
std::numeric_limits< Uint8 >::max());
|
|
|
|
static std::uniform_int_distribution< Int16 > Int16_Dist(std::numeric_limits< Int16 >::min(),
|
|
std::numeric_limits< Int16 >::max());
|
|
static std::uniform_int_distribution< Uint16 > Uint16_Dist(std::numeric_limits< Uint16 >::min(),
|
|
std::numeric_limits< Uint16 >::max());
|
|
|
|
static std::uniform_int_distribution< Int32 > Int32_Dist(std::numeric_limits< Int32 >::min(),
|
|
std::numeric_limits< Int32 >::max());
|
|
static std::uniform_int_distribution< Uint32 > Uint32_Dist(std::numeric_limits< Uint32 >::min(),
|
|
std::numeric_limits< Uint32 >::max());
|
|
|
|
static std::uniform_int_distribution< Int64 > Int64_Dist(std::numeric_limits< Int64 >::min(),
|
|
std::numeric_limits< Int64 >::max());
|
|
static std::uniform_int_distribution< Uint64 > Uint64_Dist(std::numeric_limits< Uint64 >::min(),
|
|
std::numeric_limits< Uint64 >::max());
|
|
|
|
static std::uniform_real_distribution<Float32> Float32_Dist(std::numeric_limits< Float32 >::min(),
|
|
std::numeric_limits< Float32 >::max());
|
|
static std::uniform_real_distribution<Float64> Float64_Dist(std::numeric_limits< Float64 >::min(),
|
|
std::numeric_limits< Float64 >::max());
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
static std::uniform_int_distribution< String::value_type >
|
|
String_Dist(std::numeric_limits< String::value_type >::min(),
|
|
std::numeric_limits< String::value_type >::max());
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
SizeT GenerateSeed()
|
|
{
|
|
Ulong a = clock();
|
|
Ulong b = time(NULL);
|
|
#ifdef SQMOD_OS_WINDOWS
|
|
Ulong c = _getpid();
|
|
#else
|
|
Ulong c = getpid();
|
|
#endif
|
|
// Mangle
|
|
a=a-b; a=a-c; a=a^(c >> 13);
|
|
b=b-c; b=b-a; b=b^(a << 8);
|
|
c=c-a; c=c-b; c=c^(b >> 13);
|
|
a=a-b; a=a-c; a=a^(c >> 12);
|
|
b=b-c; b=b-a; b=b^(a << 16);
|
|
c=c-a; c=c-b; c=c^(b >> 5);
|
|
a=a-b; a=a-c; a=a^(c >> 3);
|
|
b=b-c; b=b-a; b=b^(a << 10);
|
|
c=c-a; c=c-b; c=c^(b >> 15);
|
|
// Return result
|
|
return c;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
SizeT GenerateSeed2()
|
|
{
|
|
struct {
|
|
std::clock_t c;
|
|
std::time_t t;
|
|
#ifdef SQMOD_OS_WINDOWS
|
|
int p;
|
|
#else
|
|
pid_t p;
|
|
#endif
|
|
} data;
|
|
data.c = std::clock();
|
|
data.t = std::time(nullptr);
|
|
#ifdef SQMOD_OS_WINDOWS
|
|
data.p = _getpid();
|
|
#else
|
|
data.p = getpid();
|
|
#endif
|
|
// Mangle and return result
|
|
return FnvHash(reinterpret_cast< const uint8_t * >(&data), sizeof(data));
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
void ReseedRandom()
|
|
{
|
|
RG32_MT19937.reset(new std::mt19937(GenerateSeed()));
|
|
RG64_MT19937.reset(new std::mt19937_64(GenerateSeed()));
|
|
}
|
|
|
|
void ReseedRandom(Uint32 n)
|
|
{
|
|
RG32_MT19937.reset(new std::mt19937(n));
|
|
RG64_MT19937.reset(new std::mt19937_64(n));
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
void ReseedRandom32()
|
|
{
|
|
RG32_MT19937.reset(new std::mt19937(GenerateSeed()));
|
|
}
|
|
|
|
void ReseedRandom32(Uint32 n)
|
|
{
|
|
RG32_MT19937.reset(new std::mt19937(n));
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
void ReseedRandom64()
|
|
{
|
|
RG64_MT19937.reset(new std::mt19937_64(GenerateSeed()));
|
|
}
|
|
|
|
void ReseedRandom64(Uint32 n)
|
|
{
|
|
RG64_MT19937.reset(new std::mt19937_64(n));
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int8 GetRandomInt8()
|
|
{
|
|
return Int8_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Int8 GetRandomInt8(Int8 n)
|
|
{
|
|
return std::uniform_int_distribution< Int8 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Int8 GetRandomInt8(Int8 m, Int8 n)
|
|
{
|
|
return std::uniform_int_distribution< Int8 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Uint8 GetRandomUint8()
|
|
{
|
|
return Uint8_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Uint8 GetRandomUint8(Uint8 n)
|
|
{
|
|
return std::uniform_int_distribution< Uint8 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Uint8 GetRandomUint8(Uint8 m, Uint8 n)
|
|
{
|
|
return std::uniform_int_distribution< Uint8 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int16 GetRandomInt16()
|
|
{
|
|
return Int16_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Int16 GetRandomInt16(Int16 n)
|
|
{
|
|
return std::uniform_int_distribution< Int16 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Int16 GetRandomInt16(Int16 m, Int16 n)
|
|
{
|
|
return std::uniform_int_distribution< Int16 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Uint16 GetRandomUint16()
|
|
{
|
|
return Uint16_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Uint16 GetRandomUint16(Uint16 n)
|
|
{
|
|
return std::uniform_int_distribution< Uint16 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Uint16 GetRandomUint16(Uint16 m, Uint16 n)
|
|
{
|
|
return std::uniform_int_distribution< Uint16 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int32 GetRandomInt32()
|
|
{
|
|
return Int32_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Int32 GetRandomInt32(Int32 n)
|
|
{
|
|
return std::uniform_int_distribution< Int32 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Int32 GetRandomInt32(Int32 m, Int32 n)
|
|
{
|
|
return std::uniform_int_distribution< Int32 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Uint32 GetRandomUint32()
|
|
{
|
|
return Int32_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Uint32 GetRandomUint32(Uint32 n)
|
|
{
|
|
return std::uniform_int_distribution< Int32 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Uint32 GetRandomUint32(Uint32 m, Uint32 n)
|
|
{
|
|
return std::uniform_int_distribution< Int32 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int64 GetRandomInt64()
|
|
{
|
|
return Int64_Dist(*RG64_MT19937);
|
|
}
|
|
|
|
Int64 GetRandomInt64(Int64 n)
|
|
{
|
|
return std::uniform_int_distribution< Int64 >(0, n)(*RG64_MT19937);
|
|
}
|
|
|
|
Int64 GetRandomInt64(Int64 m, Int64 n)
|
|
{
|
|
return std::uniform_int_distribution< Int64 >(m, n)(*RG64_MT19937);
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Uint64 GetRandomUint64()
|
|
{
|
|
return Uint64_Dist(*RG64_MT19937);
|
|
}
|
|
|
|
Uint64 GetRandomUint64(Uint64 n)
|
|
{
|
|
return std::uniform_int_distribution< Uint64 >(0, n)(*RG64_MT19937);
|
|
}
|
|
|
|
Uint64 GetRandomUint64(Uint64 m, Uint64 n)
|
|
{
|
|
return std::uniform_int_distribution< Uint64 >(m, n)(*RG64_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Float32 GetRandomFloat32()
|
|
{
|
|
return Float32_Dist(*RG32_MT19937);
|
|
}
|
|
|
|
Float32 GetRandomFloat32(Float32 n)
|
|
{
|
|
return std::uniform_real_distribution< Float32 >(0, n)(*RG32_MT19937);
|
|
}
|
|
|
|
Float32 GetRandomFloat32(Float32 m, Float32 n)
|
|
{
|
|
return std::uniform_real_distribution< Float32 >(m, n)(*RG32_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Float64 GetRandomFloat64()
|
|
{
|
|
return Float64_Dist(*RG64_MT19937);
|
|
}
|
|
|
|
Float64 GetRandomFloat64(Float64 n)
|
|
{
|
|
return std::uniform_real_distribution< Float64 >(0, n)(*RG64_MT19937);
|
|
}
|
|
|
|
Float64 GetRandomFloat64(Float64 m, Float64 n)
|
|
{
|
|
return std::uniform_real_distribution< Float64 >(m, n)(*RG64_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
void GetRandomString(String & str, String::size_type len)
|
|
{
|
|
// Reserve the requested size + the null terminator
|
|
str.reserve(len+1);
|
|
// Resize to the requested size and fill with 0
|
|
str.resize(len);
|
|
// Generate the requested amount of characters
|
|
for (auto & c : str)
|
|
c = String_Dist(*RG32_MT19937);
|
|
// Append the null terminator
|
|
str.push_back(0);
|
|
}
|
|
|
|
void GetRandomString(String & str, String::size_type len, String::value_type n)
|
|
{
|
|
// Reserve the requested size + the null terminator
|
|
str.reserve(len+1);
|
|
// Resize to the requested size and fill with 0
|
|
str.resize(len);
|
|
// Create the custom distribution
|
|
std::uniform_int_distribution< String::value_type > dist(1, n);
|
|
// Generate the requested amount of characters
|
|
for (auto & c : str)
|
|
c = dist(*RG32_MT19937);
|
|
// Append the null terminator
|
|
str.push_back(0);
|
|
}
|
|
|
|
void GetRandomString(String & str, String::size_type len, String::value_type m, String::value_type n)
|
|
{
|
|
// Reserve the requested size + the null terminator
|
|
str.reserve(len+1);
|
|
// Resize to the requested size and fill with 0
|
|
str.resize(len);
|
|
// Create the custom distribution
|
|
std::uniform_int_distribution< String::value_type > dist(m, n);
|
|
// Generate the requested amount of characters
|
|
for (auto & c : str)
|
|
c = dist(*RG32_MT19937);
|
|
// Append the null terminator
|
|
str.push_back(0);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
bool GetRandomBool()
|
|
{
|
|
return std::bernoulli_distribution()(*RG32_MT19937);
|
|
}
|
|
|
|
bool GetRandomBool(SQFloat p)
|
|
{
|
|
return std::bernoulli_distribution(p)(*RG32_MT19937);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
static String RandomString(Int32 len)
|
|
{
|
|
// Is there anything to generate?
|
|
if (len <= 0)
|
|
return _SC("");
|
|
// Prepare the string buffer
|
|
String str;
|
|
// Request the random fill
|
|
GetRandomString(str, len);
|
|
// Return ownership of the string
|
|
return std::move(str);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
static String RandomString(Int32 len, SQChar n)
|
|
{
|
|
// Is there anything to generate?
|
|
if (len <= 0)
|
|
return _SC("");
|
|
// Prepare the string buffer
|
|
String str;
|
|
// Request the random fill
|
|
GetRandomString(str, len, n);
|
|
// Return ownership of the string
|
|
return std::move(str);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
static String RandomString(Int32 len, SQChar m, SQChar n)
|
|
{
|
|
// Is there anything to generate?
|
|
if (len <= 0)
|
|
return _SC("");
|
|
// Prepare the string buffer
|
|
String str;
|
|
// Request the random fill
|
|
GetRandomString(str, len, m, n);
|
|
// Return ownership of the string
|
|
return std::move(str);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
void Register_Random(HSQUIRRELVM vm)
|
|
{
|
|
RootTable(vm).Bind(_SC("SqRand"), Table(vm)
|
|
.Func(_SC("GenSeed"), &GenerateSeed)
|
|
.Func(_SC("GenSeed2"), &GenerateSeed2)
|
|
.Overload< void (*)(void) >(_SC("Reseed"), &ReseedRandom)
|
|
.Overload< void (*)(Uint32) >(_SC("Reseed"), &ReseedRandom)
|
|
.Overload< void (*)(void) >(_SC("Reseed32"), &ReseedRandom32)
|
|
.Overload< void (*)(Uint32) >(_SC("Reseed32"), &ReseedRandom32)
|
|
.Overload< void (*)(void) >(_SC("Reseed64"), &ReseedRandom64)
|
|
.Overload< void (*)(Uint32) >(_SC("Reseed64"), &ReseedRandom64)
|
|
|
|
#ifdef _SQ64
|
|
.Overload< SQInteger (*)(void) >(_SC("Integer"), &GetRandomInt64)
|
|
.Overload< SQInteger (*)(SQInteger) >(_SC("Integer"), &GetRandomInt64)
|
|
.Overload< SQInteger (*)(SQInteger, SQInteger) >(_SC("Integer"), &GetRandomInt64)
|
|
#else
|
|
.Overload< SQInteger (*)(void) >(_SC("Integer"), &GetRandomInt32)
|
|
.Overload< SQInteger (*)(SQInteger) >(_SC("Integer"), &GetRandomInt32)
|
|
.Overload< SQInteger (*)(SQInteger, SQInteger) >(_SC("Integer"), &GetRandomInt32)
|
|
#endif // _SQ64
|
|
|
|
#ifdef SQUSEDOUBLE
|
|
.Overload< SQFloat (*)(void) >(_SC("Float"), &GetRandomFloat64)
|
|
.Overload< SQFloat (*)(SQFloat) >(_SC("Float"), &GetRandomFloat64)
|
|
.Overload< SQFloat (*)(SQFloat, SQFloat) >(_SC("Float"), &GetRandomFloat64)
|
|
#else
|
|
.Overload< SQFloat (*)(void) >(_SC("Float"), &GetRandomFloat32)
|
|
.Overload< SQFloat (*)(SQFloat) >(_SC("Float"), &GetRandomFloat32)
|
|
.Overload< SQFloat (*)(SQFloat, SQFloat) >(_SC("Float"), &GetRandomFloat32)
|
|
#endif // SQUSEDOUBLE
|
|
|
|
.Overload< String (*)(Int32) >(_SC("String"), &RandomString)
|
|
.Overload< String (*)(Int32, SQChar) >(_SC("String"), &RandomString)
|
|
.Overload< String (*)(Int32, SQChar, SQChar) >(_SC("String"), &RandomString)
|
|
.Overload< bool (*)(void) >(_SC("Bool"), &GetRandomBool)
|
|
.Overload< bool (*)(SQFloat) >(_SC("Bool"), &GetRandomBool)
|
|
);
|
|
}
|
|
|
|
} // Namespace:: SqMod
|