server/game2004
5
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

1

Browse Source
This commit is contained in:
aozhiwei 2020-08-13 17:59:07 +08:00
parent 7ff62bc87e
commit ddba1267b8
1 changed files with 66 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
server/gameserver/navmeshbuilder.cc
View File

@ -49,6 +49,71 @@ struct TileCacheData
int dataSize;
};
struct rcChunkyTriMeshNode
{
float bmin[2];
float bmax[2];
int i;
int n;
};
struct rcChunkyTriMesh
{
inline rcChunkyTriMesh() : nodes(0), nnodes(0), tris(0), ntris(0), maxTrisPerChunk(0) {};
inline ~rcChunkyTriMesh() { delete [] nodes; delete [] tris; }
rcChunkyTriMeshNode* nodes;
int nnodes;
int* tris;
int ntris;
int maxTrisPerChunk;
private:
// Explicitly disabled copy constructor and copy assignment operator.
#if 0
rcChunkyTriMesh(const rcChunkyTriMesh&);
rcChunkyTriMesh& operator=(const rcChunkyTriMesh&);
#endif
};
inline bool checkOverlapRect(const float amin[2], const float amax[2],
const float bmin[2], const float bmax[2])
{
bool overlap = true;
overlap = (amin[0] > bmax[0] || amax[0] < bmin[0]) ? false : overlap;
overlap = (amin[1] > bmax[1] || amax[1] < bmin[1]) ? false : overlap;
return overlap;
}
static int rcGetChunksOverlappingRect(const rcChunkyTriMesh* cm,
float bmin[2], float bmax[2],
int* ids, const int maxIds)
{
// Traverse tree
int i = 0;
int n = 0;
while (i < cm->nnodes) {
const rcChunkyTriMeshNode* node = &cm->nodes[i];
const bool overlap = checkOverlapRect(bmin, bmax, node->bmin, node->bmax);
const bool isLeafNode = node->i >= 0;
if (isLeafNode && overlap) {
if (n < maxIds) {
ids[n] = i;
n++;
}
}
if (overlap || isLeafNode)
i++;
else {
const int escapeIndex = -node->i;
i += escapeIndex;
}
}
return n;
}
struct RasterizationContext
{
RasterizationContext() :
@ -463,7 +528,6 @@ int NavMeshBuilder::RasterizeTileLayers(const int tx, const int ty,
FastLZCompressor comp;
RasterizationContext rc;
struct rcChunkyTriMesh;
#if 1
const float* verts = nullptr;
const int nverts = 0;
@ -505,9 +569,7 @@ int NavMeshBuilder::RasterizeTileLayers(const int tx, const int ty,
// 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.
#if 0
rc.triareas = new unsigned char[chunkyMesh->maxTrisPerChunk];
#endif
if (!rc.triareas) {
#if 0
m_ctx->log(RC_LOG_ERROR, "buildNavigation: Out of memory 'm_triareas' (%d).", chunkyMesh->maxTrisPerChunk);
@ -521,22 +583,18 @@ int NavMeshBuilder::RasterizeTileLayers(const int tx, const int ty,
tbmax[0] = tcfg.bmax[0];
tbmax[1] = tcfg.bmax[2];
int cid[512];// TODO: Make grow when returning too many items.
#if 1
const int ncid = 0;
#else
const int ncid = rcGetChunksOverlappingRect(chunkyMesh, tbmin, tbmax, cid, 512);
#endif
if (!ncid) {
return 0; // empty
}
for (int i = 0; i < ncid; ++i) {
#if 0
const rcChunkyTriMeshNode& node = chunkyMesh->nodes[cid[i]];
const int* tris = &chunkyMesh->tris[node.i*3];
const int ntris = node.n;
memset(rc.triareas, 0, ntris*sizeof(unsigned char));
#if 0
rcMarkWalkableTriangles(m_ctx, tcfg.walkableSlopeAngle,
verts, nverts, tris, ntris, rc.triareas,
SAMPLE_AREAMOD_GROUND);