public override DreamValue OperatorSubtract(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
DreamList listCopy = list.CreateCopy();
if (b.Type == DreamValue.DreamValueType.DreamObject)
{
if (b.TryGetValueAsDreamList(out DreamList bList))
{
foreach (DreamValue value in bList.GetValues())
{
listCopy.RemoveValue(value);
}
}
else
{
listCopy.RemoveValue(b);
}
}
else
{
listCopy.RemoveValue(b);
}
return(new DreamValue(listCopy));
}
public DreamValue OperatorMask(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
if (b.TryGetValueAsDreamList(out DreamList bList))
{
for (int i = 1; i <= list.GetLength(); i++)
{
if (!bList.ContainsValue(list.GetValue(new DreamValue(i))))
{
list.Cut(i, i + 1);
i--;
}
}
}
else
{
for (int i = 1; i <= list.GetLength(); i++)
{
if (list.GetValue(new DreamValue(i)) != b)
{
list.Cut(i, i + 1);
i--;
}
}
}
return(a);
}
public override DreamValue OperatorCombine(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
if (b.Type == DreamValue.DreamValueType.DreamObject)
{
if (b.TryGetValueAsDreamList(out DreamList bList))
{
foreach (DreamValue value in bList.GetValues())
{
if (!list.ContainsValue(value))
{
list.AddValue(value);
}
}
}
else if (!list.ContainsValue(b))
{
list.AddValue(b);
}
}
else if (!list.ContainsValue(b))
{
list.AddValue(b);
}
return(a);
}
public override DreamValue OperatorRemove(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
if (b.Type == DreamValue.DreamValueType.DreamObject)
{
if (b.TryGetValueAsDreamList(out DreamList bList))
{
foreach (DreamValue value in bList.GetValues())
{
list.RemoveValue(value);
}
}
else
{
list.RemoveValue(b);
}
}
else
{
list.RemoveValue(b);
}
return(a);
}
public DreamValue OperatorOr(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
if (b.TryGetValueAsDreamList(out DreamList bList)) // List | List
{
list = list.Union(bList);
}
else // List | x
{
list = list.CreateCopy();
list.AddValue(b);
}
return(new DreamValue(list));
}
public DreamValue OperatorAppend(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
if (b.TryGetValueAsDreamList(out DreamList bList))
{
foreach (DreamValue value in bList.GetValues())
{
list.AddValue(value);
}
}
else
{
list.AddValue(b);
}
return(a);
}
public DreamValue OperatorAdd(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
DreamList listCopy = list.CreateCopy();
if (b.TryGetValueAsDreamList(out DreamList bList))
{
foreach (DreamValue value in bList.GetValues())
{
listCopy.AddValue(value);
}
}
else
{
listCopy.AddValue(b);
}
return(new DreamValue(listCopy));
}
public DreamValue OperatorRemove(DreamValue a, DreamValue b)
{
DreamList list = a.GetValueAsDreamList();
if (b.TryGetValueAsDreamList(out DreamList bList))
{
DreamValue[] values = bList.GetValues().ToArray();
foreach (DreamValue value in values)
{
list.RemoveValue(value);
}
}
else
{
list.RemoveValue(b);
}
return(a);
}