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Recast: fix incorrect reachability table buffer size calculation

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Reachability table buffers were way larger than they should be due to an incorrect calculation of the buffer size. This bug fix reduced NavMesh sizes significantly (worlds edge '_small' was 200mb, and is now 20mb after this patch).
This commit is contained in:
Kawe Mazidjatari 2024-07-03 10:45:44 +02:00
parent bff572659f
commit c215fcb220
1 changed files with 2 additions and 2 deletions
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4
src/naveditor/Editor.cpp
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@ -439,7 +439,7 @@ void Editor::saveAll(std::string path, dtNavMesh* mesh)
header.params.disjointPolyGroupCount = linkData.setCount;
header.params.reachabilityTableCount = m_reachabilityTableCount;
header.params.reachabilityTableSize = ((header.params.disjointPolyGroupCount + 31) / 32) * header.params.disjointPolyGroupCount * 32;
header.params.reachabilityTableSize = (linkData.setCount - 1) * ((linkData.setCount + 31) / 32) + (linkData.setCount - 1) / 32;
fwrite(&header, sizeof(NavMeshSetHeader), 1, fp);
@ -458,7 +458,7 @@ void Editor::saveAll(std::string path, dtNavMesh* mesh)
fwrite(tile->data, tile->dataSize, 1, fp);
}
std::vector<int> reachability(tableSize, 0);
std::vector<int> reachability(header.params.reachabilityTableSize, 0);
for (int i = 0; i < linkData.setCount; i++)
setReachable(reachability, linkData.setCount, i, i, true);