private static void SetValue <T>(ITuple dummyTuple, ITuple tuple, int fieldIndex, Random random)
{
IInstanceGenerator <T> generator = InstanceGeneratorProvider.Default.GetInstanceGenerator <T>();
T instance = generator.GetInstance(random);
dummyTuple.SetValue(fieldIndex, instance);
tuple.SetValue(fieldIndex, instance);
}
public static void CopyFrom(this ITuple tuple, IEnumerable list)
{
int i = 0;
foreach (var item in list)
{
tuple.SetValue(i, item);
++i;
}
}
void SetTupleValueAndResetColumnSortingIfNeeded(ITuple tuple, int columnIndex, object newValue)
{
var oldValue = tuple.GetValue(columnIndex);
tuple.SetValue(columnIndex, newValue);
// Reset column sorting only if needed
// Using object.Equals to bypass unboxing
if (!object.Equals(oldValue, newValue))
{
SetColumnSorting(columnIndex, TableValueSortType.NONE);
}
}
void GetRandomValuesIntoTuple(ITableColumns columnsModel, ITuple tuple, System.Random random)
{
for (int i = 0; i < columnsModel.ColumnsCount; i++)
{
var randInt = random.Next();
var randIntPos = randInt < 0 ? -randInt : randInt;
object obj = null;
if (randInt % 10 != 0) // objects can also be null
{
var columnState = columnsModel.GetColumnState(i);
var type = columnState.Info.ValueType;
var buf8 = new byte[sizeof(double)];
switch (type)
{
case TableValueType.RAW:
if (randInt % 2 == 0)
{
obj = new object();
}
else
{
obj = new Vector3((randInt % 4), (randInt % (1 + i)), (randInt % (2 + i)));
}
break;
case TableValueType.STRING:
obj = _RandomStrings[randIntPos % _RandomStrings.Length];
break;
case TableValueType.INT:
obj = randInt;
break;
case TableValueType.LONG_INT:
obj = (((long)(randInt) << 32) + (~randInt));
break;
case TableValueType.FLOAT:
obj = randInt / 134325.4134E+23f;
break;
case TableValueType.DOUBLE:
// _Random.NextDouble() is useless because it doesn't produce the entire range of doubles
// This also can yield NaN and Infinity, but we want that, for demo purposes
random.NextBytes(buf8);
obj = BitConverter.ToDouble(buf8, 0);
break;
case TableValueType.ENUMERATION:
var enumType = columnState.Info.EnumValueType;
var enumValues = Enum.GetValues(enumType);
obj = enumValues.GetValue(randIntPos % enumValues.Length);
break;
case TableValueType.BOOL:
obj = randInt % 2 == 0;
break;
case TableValueType.TEXTURE:
obj = _SampleTextures[randIntPos % _SampleTextures.Length];
break;
}
}
tuple.SetValue(i, obj);
}
}
