server_common/recastnavigation_v1.6.0
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Added rcCopyPolyMesh function.

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This commit is contained in:
Mikko Mononen 2012-02-27 19:02:16 +00:00
parent 620f8fa130
commit f91363ff06
2 changed files with 72 additions and 0 deletions
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8
Recast/Include/Recast.h
View File

@ -1092,6 +1092,14 @@ bool rcBuildPolyMeshDetail(rcContext* ctx, const rcPolyMesh& mesh, const rcCompa
const float sampleDist, const float sampleMaxError,
rcPolyMeshDetail& dmesh);
/// Copies the poly mesh data from src to dst.
/// @ingroup recast
/// @param[in,out] ctx The build context to use during the operation.
/// @param[in] src The source mesh to copy from.
/// @param[out] dst The resulting detail mesh. (Must be pre-allocated, must be empty mesh.)
/// @returns True if the operation completed successfully.
bool rcCopyPolyMesh(rcContext* ctx, const rcPolyMesh& src, rcPolyMesh& dst);
/// Merges multiple detail meshes into a single detail mesh.
/// @ingroup recast
/// @param[in,out] ctx The build context to use during the operation.

64
Recast/Source/RecastMesh.cpp
View File

@ -1390,3 +1390,67 @@ bool rcMergePolyMeshes(rcContext* ctx, rcPolyMesh** meshes, const int nmeshes, r
return true;
}
bool rcCopyPolyMesh(rcContext* ctx, const rcPolyMesh& src, rcPolyMesh& dst)
{
rcAssert(ctx);
// Destination must be empty.
rcAssert(dst.verts == 0);
rcAssert(dst.polys == 0);
rcAssert(dst.regs == 0);
rcAssert(dst.areas == 0);
rcAssert(dst.flags == 0);
dst.nverts = src.nverts;
dst.npolys = src.npolys;
dst.maxpolys = src.npolys;
dst.nvp = src.nvp;
rcVcopy(dst.bmin, src.bmin);
rcVcopy(dst.bmax, src.bmax);
dst.cs = src.cs;
dst.ch = src.ch;
dst.borderSize = src.borderSize;
dst.verts = (unsigned short*)rcAlloc(sizeof(unsigned short)*src.nverts*3, RC_ALLOC_PERM);
if (!dst.verts)
{
ctx->log(RC_LOG_ERROR, "rcCopyPolyMesh: Out of memory 'dst.verts' (%d).", src.nverts*3);
return false;
}
memcpy(dst.verts, src.verts, sizeof(unsigned short)*src.nverts*3);
dst.polys = (unsigned short*)rcAlloc(sizeof(unsigned short)*src.npolys*2*src.nvp, RC_ALLOC_PERM);
if (!dst.polys)
{
ctx->log(RC_LOG_ERROR, "rcCopyPolyMesh: Out of memory 'dst.polys' (%d).", src.npolys*2*src.nvp);
return false;
}
memcpy(dst.polys, src.polys, sizeof(unsigned short)*src.npolys*2*src.nvp);
dst.regs = (unsigned short*)rcAlloc(sizeof(unsigned short)*src.npolys, RC_ALLOC_PERM);
if (!dst.regs)
{
ctx->log(RC_LOG_ERROR, "rcCopyPolyMesh: Out of memory 'dst.regs' (%d).", src.npolys);
return false;
}
memcpy(dst.regs, src.regs, sizeof(unsigned short)*src.npolys);
dst.areas = (unsigned char*)rcAlloc(sizeof(unsigned char)*src.npolys, RC_ALLOC_PERM);
if (!dst.areas)
{
ctx->log(RC_LOG_ERROR, "rcCopyPolyMesh: Out of memory 'dst.areas' (%d).", src.npolys);
return false;
}
memcpy(dst.areas, src.areas, sizeof(unsigned char)*src.npolys);
dst.flags = (unsigned short*)rcAlloc(sizeof(unsigned short)*src.npolys, RC_ALLOC_PERM);
if (!dst.flags)
{
ctx->log(RC_LOG_ERROR, "rcCopyPolyMesh: Out of memory 'dst.flags' (%d).", src.npolys);
return false;
}
memcpy(dst.flags, src.flags, sizeof(unsigned char)*src.npolys);
return true;
}