public MersenneTwister(MersenneTwisterData data)
: base()
{
SetData(data);
}
/// <exception cref="Kirikiri.Tjs2.TJSException"></exception>
/// <exception cref="Kirikiri.Tjs2.VariantException"></exception>
public virtual void Randomize(Variant[] param)
{
if (param.Length == 0)
{
// parametor not given
if (mRandomBits128 != null)
{
// another random generator is given
//tjs_uint8 buf[32];
//unsigned long tmp[32];
ByteBuffer buf = ByteBuffer.AllocateDirect(32);
mRandomBits128.GetRandomBits128(buf, 0);
mRandomBits128.GetRandomBits128(buf, 16);
int[] tmp = new int[32];
for (int i = 0; i < 32; i++)
{
long num = (long)buf.Get(i) + ((long)buf.Get(i) << 8) + ((long)buf.Get(1) << 16)
+ ((long)buf.Get(i) << 24);
tmp[i] = (int)(num > int.MaxValue ? num - unchecked((long)(0x100000000L)) : num);
}
if (mGenerator != null)
{
mGenerator = null;
}
mGenerator = new MersenneTwister(tmp);
}
else
{
if (mGenerator != null)
{
mGenerator = null;
}
mGenerator = new MersenneTwister(Runtime.CurrentTimeMillis());
}
}
else
{
if (param.Length >= 1)
{
if (param[0].IsObject())
{
MersenneTwisterData data = null;
try
{
// may be a reconstructible information
VariantClosure clo = param[0].AsObjectClosure();
if (clo.mObject == null)
{
throw new TJSException(Error.NullAccess);
}
string state;
Variant val = new Variant();
data = new MersenneTwisterData();
// get state array
//TJSThrowFrom_tjs_error
int hr = clo.PropGet(Interface.MEMBERMUSTEXIST, "state", val, null);
if (hr < 0)
{
Error.ThrowFrom_tjs_error(hr, null);
}
state = val.AsString();
if (state.Length != MT_N * 8)
{
throw new TJSException(Error.NotReconstructiveRandomizeData);
}
int p = 0;
for (int i = 0; i < MT_N; i++)
{
long n = 0;
int tmp;
for (int j = 0; j < 8; j++)
{
int c = state[p + j];
tmp = -1;
if (c >= '0' && c <= '9')
{
n = c - '0';
}
else
{
if (c >= 'a' && c <= 'f')
{
n = c - 'a' + 10;
}
else
{
if (c >= 'A' && c <= 'F')
{
n = c - 'A' + 10;
}
}
}
if (tmp == -1)
{
throw new TJSException(Error.NotReconstructiveRandomizeData);
}
else
{
n <<= 4;
n += tmp;
}
}
p += 8;
data.state.Put(i, n & unchecked((long)(0xffffffffL)));
}
// get other members
hr = clo.PropGet(Interface.MEMBERMUSTEXIST, "left", val, null);
if (hr < 0)
{
Error.ThrowFrom_tjs_error(hr, null);
}
data.left = val.AsInteger();
hr = clo.PropGet(Interface.MEMBERMUSTEXIST, "next", val, null);
data.next = val.AsInteger();
if (mGenerator != null)
{
mGenerator = null;
}
mGenerator = new MersenneTwister(data);
}
catch (VariantException)
{
data = null;
throw new TJSException(Error.NotReconstructiveRandomizeData);
}
catch (TJSException)
{
data = null;
throw new TJSException(Error.NotReconstructiveRandomizeData);
}
data = null;
}
else
{
// 64bitじゃなくて、32bit にしてしまっている。实用上问题あれば修正。
int n = param[0].AsInteger();
int[] tmp = new int[1];
tmp[0] = n;
if (mGenerator != null)
{
mGenerator = null;
}
mGenerator = new MersenneTwister(tmp);
}
}
}
}
public virtual void SetData(MersenneTwisterData rhs)
{
// copy
ByteBuffer src = rhs.state.Duplicate();
src.Position(0);
src.Limit(MT_N);
ByteBuffer buff = ByteBuffer.AllocateDirect(MT_N * 8);
buff.Order(ByteBuffer.NativeOrder());
state = buff.AsLongBuffer();
state.Clear();
state.Put(src);
next = rhs.next;
left = rhs.left;
}
