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change llList2ListStrided so it is more like spec (no exclusion range, etc

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UbitUmarov
2023-04-27 22:01:52 +01:00
parent 02fd3b86fa
commit a4ba4232e6
1 changed files with 64 additions and 0 deletions
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64
OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
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@@ -5753,6 +5753,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
return result;
}
/* old incompatible code
/// <summary>
/// Elements in the source list starting with 0 and then
/// every i+stride. If the stride is negative then the scan
@@ -5845,6 +5846,69 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
return result;
}
*/
public LSL_List llList2ListStrided(LSL_List src, int start, int end, int stride)
{
if (start < 0)
{
start += src.Length;
if (start < 0)
start = 0;
}
if (end < 0)
{
end += src.Length;
if (end < 0)
end = 0;
}
if (start > end)
{
start = 0;
end = src.Length - 1;
}
else
{
if (start >= src.Length)
return new LSL_List();
if (end >= src.Length)
end = src.Length - 1;
}
if (stride < 1)
stride = 1;
int size;
if (stride > 1)
{
if (start > 0)
{
int sst = start / stride;
sst *= stride;
if (sst != start)
start = sst + stride;
if (start > end)
return new LSL_List();
}
size = end - start + 1;
int sz = size / stride;
if (sz * stride < size)
sz++;
size = sz;
}
else
size = end - start + 1;
object[] res = new object[size];
int j = 0;
for (int i = start; i <= end; i += stride, j++)
res[j] = src.Data[i];
return new LSL_List(res);
}
public LSL_List llList2ListSlice(LSL_List src, int start, int end, int stride, int stride_index)
{
if (start < 0)