void OgreDetourTileCache::drawDetail(const int tx, const int ty)
{
if (!DEBUG_DRAW)
return; // Don't debug draw for huge performance gain!
struct TileCacheBuildContext
{
inline TileCacheBuildContext(struct dtTileCacheAlloc* a) : layer(0), lcset(0), lmesh(0), alloc(a) {}
inline ~TileCacheBuildContext() { purge(); }
void purge()
{
dtFreeTileCacheLayer(alloc, layer);
layer = 0;
dtFreeTileCacheContourSet(alloc, lcset);
lcset = 0;
dtFreeTileCachePolyMesh(alloc, lmesh);
lmesh = 0;
}
struct dtTileCacheLayer* layer;
struct dtTileCacheContourSet* lcset;
struct dtTileCachePolyMesh* lmesh;
struct dtTileCacheAlloc* alloc;
};
dtCompressedTileRef tiles[MAX_LAYERS];
const int ntiles = m_tileCache->getTilesAt(tx,ty,tiles,MAX_LAYERS);
dtTileCacheAlloc* talloc = m_tileCache->getAlloc();
dtTileCacheCompressor* tcomp = m_tileCache->getCompressor();
const dtTileCacheParams* params = m_tileCache->getParams();
for (int i = 0; i < ntiles; ++i)
{
const dtCompressedTile* tile = m_tileCache->getTileByRef(tiles[i]);
talloc->reset();
TileCacheBuildContext bc(talloc);
const int walkableClimbVx = (int)(params->walkableClimb / params->ch);
dtStatus status;
// Decompress tile layer data.
status = dtDecompressTileCacheLayer(talloc, tcomp, tile->data, tile->dataSize, &bc.layer);
if (dtStatusFailed(status))
return;
// Build navmesh
status = dtBuildTileCacheRegions(talloc, *bc.layer, walkableClimbVx);
if (dtStatusFailed(status))
return;
//TODO this part is replicated from navmesh tile building in DetourTileCache. Maybe that can be reused. Also is it really necessary to do an extra navmesh rebuild from compressed tile just to draw it? Can't I just draw it somewhere where the navmesh is rebuilt?
bc.lcset = dtAllocTileCacheContourSet(talloc);
if (!bc.lcset)
return;
status = dtBuildTileCacheContours(talloc, *bc.layer, walkableClimbVx,
params->maxSimplificationError, *bc.lcset);
if (dtStatusFailed(status))
return;
bc.lmesh = dtAllocTileCachePolyMesh(talloc);
if (!bc.lmesh)
return;
status = dtBuildTileCachePolyMesh(talloc, *bc.lcset, *bc.lmesh);
if (dtStatusFailed(status))
return;
// Draw navmesh
Ogre::String tileName = Ogre::StringConverter::toString(tiles[i]);
// Ogre::LogManager::getSingletonPtr()->logMessage("Drawing tile: "+tileName);
// TODO this is a dirty quickfix that should be gone as soon as there is a rebuildTile(tileref) method
if(m_recast->m_pSceneMgr->hasManualObject("RecastMOWalk_"+tileName))
return;
drawPolyMesh(tileName, *bc.lmesh, tile->header->bmin, params->cs, params->ch, *bc.layer);
}
}
void OgreRecast::drawNavMesh()
{
if(m_pmesh)
drawPolyMesh(*m_pmesh);
}
