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Recast: reset poly mesh area flags after build

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Flags are changed to game specific flags, but never reset after build causing the recast debug draw to be incorrect. Reset area flags to fix this issue.
This commit is contained in:
Kawe Mazidjatari 2024-07-13 11:27:57 +02:00
parent dc5777145e
commit 727a4377ba
1 changed files with 18 additions and 4 deletions
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22
src/naveditor/Editor_TileMesh.cpp
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@ -669,7 +669,7 @@ unsigned char* Editor_TileMesh::buildTileMesh(const int tx, const int ty, const
// Allocate array that can hold triangle flags.
// If you have multiple meshes you need to process, allocate
// and array which can hold the max number of triangles you need to process.
// an array which can hold the max number of triangles you need to process.
m_triareas = new unsigned char[chunkyMesh->maxTrisPerChunk];
if (!m_triareas)
{
@ -970,12 +970,26 @@ unsigned char* Editor_TileMesh::buildTileMesh(const int tx, const int ty, const
params.cs = m_cfg.cs;
params.ch = m_cfg.ch;
params.buildBvTree = true;
if (!dtCreateNavMeshData(&params, &navData, &navDataSize))
const bool navMeshBuildSuccess = dtCreateNavMeshData(&params, &navData, &navDataSize);
// Restore poly areas.
for (int i = 0; i < m_pmesh->npolys; ++i)
{
// The game's poly area (ground) shares the same value as
// RC_NULL_AREA, if we try to render the recast polymesh cache
// without restoring this, the renderer will draw it as NULL area
// even though it's walkable. The other values will get color ID'd
// by the renderer so we don't need to check on those.
if (m_pmesh->areas[i] == EDITOR_POLYAREA_GROUND)
m_pmesh->areas[i] = RC_WALKABLE_AREA;
}
if (!navMeshBuildSuccess)
{
m_ctx->log(RC_LOG_ERROR, "Could not build Detour navmesh.");
return 0;
}
}
}
m_tileMemUsage = navDataSize/1024.0f;