1
This commit is contained in:
aozhiwei
parent
db1d19a46e
commit
244e92f1fa
@ -19,6 +19,8 @@
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#include "entity.h"
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#include "metamgr.h"
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#include "navmeshhelper.h"
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static const float kAgentMaxSlope = 90;
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static const float kAgentHeight = 1;
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static const float kAgentMaxClimb = 1;
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@ -37,244 +39,9 @@ static const int kTileSize = 48;
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static const float kDetailSampleDist = 1;
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static const float kDetailSampleMaxError = 1;
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static const int EXPECTED_LAYERS_PER_TILE = 4;
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static const int MAX_LAYERS = 32;
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static const int kMaxTiles = 0;
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static const int kMaxPolysPerTile = 0;
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/// Mask of the ceil part of the area id (3 lower bits)
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/// the 0 value (RC_NULL_AREA) is left unused
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static const unsigned char SAMPLE_POLYAREA_TYPE_MASK = 0x07;
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/// Value for the kind of ceil "ground"
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static const unsigned char SAMPLE_POLYAREA_TYPE_GROUND = 0x1;
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/// Value for the kind of ceil "water"
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static const unsigned char SAMPLE_POLYAREA_TYPE_WATER = 0x2;
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/// Value for the kind of ceil "road"
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static const unsigned char SAMPLE_POLYAREA_TYPE_ROAD = 0x3;
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/// Value for the kind of ceil "grass"
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static const unsigned char SAMPLE_POLYAREA_TYPE_GRASS = 0x4;
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/// Flag for door area. Can be combined with area types and jump flag.
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static const unsigned char SAMPLE_POLYAREA_FLAG_DOOR = 0x08;
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/// Flag for jump area. Can be combined with area types and door flag.
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static const unsigned char SAMPLE_POLYAREA_FLAG_JUMP = 0x10;
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struct TileCacheData
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{
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unsigned char* data;
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int dataSize;
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};
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struct rcChunkyTriMeshNode
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{
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float bmin[2];
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float bmax[2];
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int i;
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int n;
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};
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struct rcChunkyTriMesh
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{
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inline rcChunkyTriMesh() : nodes(0), nnodes(0), tris(0), ntris(0), maxTrisPerChunk(0) {};
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inline ~rcChunkyTriMesh() { delete [] nodes; delete [] tris; }
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rcChunkyTriMeshNode* nodes;
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int nnodes;
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int* tris;
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int ntris;
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int maxTrisPerChunk;
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private:
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// Explicitly disabled copy constructor and copy assignment operator.
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#if 0
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rcChunkyTriMesh(const rcChunkyTriMesh&);
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rcChunkyTriMesh& operator=(const rcChunkyTriMesh&);
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#endif
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};
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static const int MAX_CONVEXVOL_PTS = 12;
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struct ConvexVolume
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{
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ConvexVolume(): areaMod(RC_AREA_FLAGS_MASK) {}
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float verts[MAX_CONVEXVOL_PTS*3];
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float hmin, hmax;
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int nverts;
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rcAreaModification areaMod;
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};
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inline bool checkOverlapRect(const float amin[2], const float amax[2],
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const float bmin[2], const float bmax[2])
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{
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bool overlap = true;
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overlap = (amin[0] > bmax[0] || amax[0] < bmin[0]) ? false : overlap;
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overlap = (amin[1] > bmax[1] || amax[1] < bmin[1]) ? false : overlap;
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return overlap;
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}
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static int rcGetChunksOverlappingRect(const rcChunkyTriMesh* cm,
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float bmin[2], float bmax[2],
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int* ids, const int maxIds)
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{
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// Traverse tree
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int i = 0;
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int n = 0;
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while (i < cm->nnodes) {
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const rcChunkyTriMeshNode* node = &cm->nodes[i];
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const bool overlap = checkOverlapRect(bmin, bmax, node->bmin, node->bmax);
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const bool isLeafNode = node->i >= 0;
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if (isLeafNode && overlap) {
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if (n < maxIds) {
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ids[n] = i;
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n++;
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}
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}
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if (overlap || isLeafNode)
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i++;
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else {
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const int escapeIndex = -node->i;
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i += escapeIndex;
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}
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}
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return n;
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}
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struct RasterizationContext
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{
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RasterizationContext() :
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solid(0),
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triareas(0),
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lset(0),
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chf(0),
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ntiles(0)
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{
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memset(tiles, 0, sizeof(TileCacheData)*MAX_LAYERS);
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}
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~RasterizationContext()
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{
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rcFreeHeightField(solid);
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delete [] triareas;
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rcFreeHeightfieldLayerSet(lset);
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rcFreeCompactHeightfield(chf);
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for (int i = 0; i < MAX_LAYERS; ++i)
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{
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dtFree(tiles[i].data);
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tiles[i].data = 0;
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}
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}
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rcHeightfield* solid;
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unsigned char* triareas;
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rcHeightfieldLayerSet* lset;
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rcCompactHeightfield* chf;
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TileCacheData tiles[MAX_LAYERS];
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int ntiles;
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};
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struct LinearAllocator : public dtTileCacheAlloc
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{
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unsigned char* buffer;
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size_t capacity;
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size_t top;
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size_t high;
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LinearAllocator(const size_t cap) : buffer(0), capacity(0), top(0), high(0)
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{
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resize(cap);
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}
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~LinearAllocator()
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{
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dtFree(buffer);
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}
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void resize(const size_t cap)
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{
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if (buffer) dtFree(buffer);
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buffer = (unsigned char*)dtAlloc(cap, DT_ALLOC_PERM);
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capacity = cap;
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}
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virtual void reset()
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{
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high = dtMax(high, top);
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top = 0;
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}
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virtual void* alloc(const size_t size)
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{
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if (!buffer)
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return 0;
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if (top+size > capacity)
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return 0;
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unsigned char* mem = &buffer[top];
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top += size;
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return mem;
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}
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virtual void free(void* /*ptr*/)
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{
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// Empty
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}
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};
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struct FastLZCompressor : public dtTileCacheCompressor
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{
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virtual int maxCompressedSize(const int bufferSize)
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{
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return (int)(bufferSize* 1.05f);
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}
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virtual dtStatus compress(const unsigned char* buffer, const int bufferSize,
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unsigned char* compressed, const int /*maxCompressedSize*/, int* compressedSize)
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{
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*compressedSize = fastlz_compress((const void *const)buffer, bufferSize, compressed);
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return DT_SUCCESS;
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}
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virtual dtStatus decompress(const unsigned char* compressed, const int compressedSize,
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unsigned char* buffer, const int maxBufferSize, int* bufferSize)
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{
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*bufferSize = fastlz_decompress(compressed, compressedSize, buffer, maxBufferSize);
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return *bufferSize < 0 ? DT_FAILURE : DT_SUCCESS;
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}
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};
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struct MeshProcess : public dtTileCacheMeshProcess
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{
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inline MeshProcess()
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{
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}
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virtual void process(struct dtNavMeshCreateParams* params,
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unsigned char* polyAreas,
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unsigned short* polyFlags)
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{
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#if 0
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// Update poly flags from areas.
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for (int i = 0; i < params->polyCount; ++i)
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{
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polyFlags[i] = sampleAreaToFlags(polyAreas[i]);
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}
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// Pass in off-mesh connections.
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if (m_geom)
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{
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params->offMeshConVerts = m_geom->getOffMeshConnectionVerts();
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params->offMeshConRad = m_geom->getOffMeshConnectionRads();
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params->offMeshConDir = m_geom->getOffMeshConnectionDirs();
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params->offMeshConAreas = m_geom->getOffMeshConnectionAreas();
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params->offMeshConFlags = m_geom->getOffMeshConnectionFlags();
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params->offMeshConUserID = m_geom->getOffMeshConnectionId();
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params->offMeshConCount = m_geom->getOffMeshConnectionCount();
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}
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#endif
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}
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};
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void NavMeshBuilder::Init()
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{
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0
server/gameserver/navmeshhelper.cc
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0
server/gameserver/navmeshhelper.cc
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236
server/gameserver/navmeshhelper.h
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236
server/gameserver/navmeshhelper.h
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@ -0,0 +1,236 @@
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#pragma once
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static const int EXPECTED_LAYERS_PER_TILE = 4;
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static const int MAX_LAYERS = 32;
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/// Mask of the ceil part of the area id (3 lower bits)
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/// the 0 value (RC_NULL_AREA) is left unused
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static const unsigned char SAMPLE_POLYAREA_TYPE_MASK = 0x07;
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/// Value for the kind of ceil "ground"
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static const unsigned char SAMPLE_POLYAREA_TYPE_GROUND = 0x1;
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/// Value for the kind of ceil "water"
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static const unsigned char SAMPLE_POLYAREA_TYPE_WATER = 0x2;
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/// Value for the kind of ceil "road"
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static const unsigned char SAMPLE_POLYAREA_TYPE_ROAD = 0x3;
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/// Value for the kind of ceil "grass"
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static const unsigned char SAMPLE_POLYAREA_TYPE_GRASS = 0x4;
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/// Flag for door area. Can be combined with area types and jump flag.
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static const unsigned char SAMPLE_POLYAREA_FLAG_DOOR = 0x08;
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/// Flag for jump area. Can be combined with area types and door flag.
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static const unsigned char SAMPLE_POLYAREA_FLAG_JUMP = 0x10;
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struct TileCacheData
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{
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unsigned char* data;
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int dataSize;
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};
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struct rcChunkyTriMeshNode
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{
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float bmin[2];
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float bmax[2];
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int i;
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int n;
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};
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struct rcChunkyTriMesh
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{
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inline rcChunkyTriMesh() : nodes(0), nnodes(0), tris(0), ntris(0), maxTrisPerChunk(0) {};
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inline ~rcChunkyTriMesh() { delete [] nodes; delete [] tris; }
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rcChunkyTriMeshNode* nodes;
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int nnodes;
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int* tris;
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int ntris;
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int maxTrisPerChunk;
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private:
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// Explicitly disabled copy constructor and copy assignment operator.
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#if 0
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rcChunkyTriMesh(const rcChunkyTriMesh&);
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rcChunkyTriMesh& operator=(const rcChunkyTriMesh&);
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#endif
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};
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static const int MAX_CONVEXVOL_PTS = 12;
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struct ConvexVolume
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{
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ConvexVolume(): areaMod(RC_AREA_FLAGS_MASK) {}
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float verts[MAX_CONVEXVOL_PTS*3];
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float hmin, hmax;
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int nverts;
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rcAreaModification areaMod;
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};
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inline bool checkOverlapRect(const float amin[2], const float amax[2],
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const float bmin[2], const float bmax[2])
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{
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bool overlap = true;
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overlap = (amin[0] > bmax[0] || amax[0] < bmin[0]) ? false : overlap;
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overlap = (amin[1] > bmax[1] || amax[1] < bmin[1]) ? false : overlap;
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return overlap;
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}
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int rcGetChunksOverlappingRect(const rcChunkyTriMesh* cm,
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float bmin[2], float bmax[2],
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int* ids, const int maxIds)
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{
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// Traverse tree
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int i = 0;
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int n = 0;
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while (i < cm->nnodes) {
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const rcChunkyTriMeshNode* node = &cm->nodes[i];
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const bool overlap = checkOverlapRect(bmin, bmax, node->bmin, node->bmax);
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const bool isLeafNode = node->i >= 0;
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if (isLeafNode && overlap) {
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if (n < maxIds) {
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ids[n] = i;
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n++;
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}
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}
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if (overlap || isLeafNode)
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i++;
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else {
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const int escapeIndex = -node->i;
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i += escapeIndex;
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}
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}
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return n;
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}
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struct RasterizationContext
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{
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RasterizationContext() :
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solid(0),
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triareas(0),
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lset(0),
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chf(0),
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ntiles(0)
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{
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memset(tiles, 0, sizeof(TileCacheData)*MAX_LAYERS);
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}
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~RasterizationContext()
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{
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rcFreeHeightField(solid);
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delete [] triareas;
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rcFreeHeightfieldLayerSet(lset);
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rcFreeCompactHeightfield(chf);
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for (int i = 0; i < MAX_LAYERS; ++i)
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{
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dtFree(tiles[i].data);
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tiles[i].data = 0;
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}
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}
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rcHeightfield* solid;
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unsigned char* triareas;
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rcHeightfieldLayerSet* lset;
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rcCompactHeightfield* chf;
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TileCacheData tiles[MAX_LAYERS];
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int ntiles;
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};
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struct LinearAllocator : public dtTileCacheAlloc
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{
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unsigned char* buffer;
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size_t capacity;
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size_t top;
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size_t high;
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LinearAllocator(const size_t cap) : buffer(0), capacity(0), top(0), high(0)
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{
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resize(cap);
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}
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~LinearAllocator()
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{
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dtFree(buffer);
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}
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void resize(const size_t cap)
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{
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if (buffer) dtFree(buffer);
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buffer = (unsigned char*)dtAlloc(cap, DT_ALLOC_PERM);
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capacity = cap;
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}
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virtual void reset()
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{
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high = dtMax(high, top);
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top = 0;
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}
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virtual void* alloc(const size_t size)
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{
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if (!buffer)
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return 0;
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if (top+size > capacity)
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return 0;
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unsigned char* mem = &buffer[top];
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top += size;
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return mem;
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}
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virtual void free(void* /*ptr*/)
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{
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// Empty
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}
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};
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struct FastLZCompressor : public dtTileCacheCompressor
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{
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virtual int maxCompressedSize(const int bufferSize)
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{
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return (int)(bufferSize* 1.05f);
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}
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virtual dtStatus compress(const unsigned char* buffer, const int bufferSize,
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unsigned char* compressed, const int /*maxCompressedSize*/, int* compressedSize)
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{
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*compressedSize = fastlz_compress((const void *const)buffer, bufferSize, compressed);
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return DT_SUCCESS;
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}
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virtual dtStatus decompress(const unsigned char* compressed, const int compressedSize,
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unsigned char* buffer, const int maxBufferSize, int* bufferSize)
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{
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*bufferSize = fastlz_decompress(compressed, compressedSize, buffer, maxBufferSize);
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return *bufferSize < 0 ? DT_FAILURE : DT_SUCCESS;
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}
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};
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struct MeshProcess : public dtTileCacheMeshProcess
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{
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inline MeshProcess()
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{
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}
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virtual void process(struct dtNavMeshCreateParams* params,
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unsigned char* polyAreas,
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unsigned short* polyFlags)
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{
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#if 0
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// Update poly flags from areas.
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for (int i = 0; i < params->polyCount; ++i)
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{
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polyFlags[i] = sampleAreaToFlags(polyAreas[i]);
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}
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// Pass in off-mesh connections.
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if (m_geom)
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{
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params->offMeshConVerts = m_geom->getOffMeshConnectionVerts();
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params->offMeshConRad = m_geom->getOffMeshConnectionRads();
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params->offMeshConDir = m_geom->getOffMeshConnectionDirs();
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params->offMeshConAreas = m_geom->getOffMeshConnectionAreas();
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params->offMeshConFlags = m_geom->getOffMeshConnectionFlags();
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params->offMeshConUserID = m_geom->getOffMeshConnectionId();
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params->offMeshConCount = m_geom->getOffMeshConnectionCount();
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}
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#endif
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}
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};
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