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Fix for Issue 55: Negative array access in dtNavMesh::raycast()

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This commit is contained in:
Mikko Mononen
2010-03-18 08:06:12 +00:00
parent 21f76bc0a5
commit 70c17e8212
7 changed files with 1811 additions and 2133 deletions
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74
RecastDemo/Source/Sample_Debug.cpp
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@@ -35,6 +35,19 @@
# define snprintf _snprintf
#endif
static int loadBin(const char* path, unsigned char** data)
{
FILE* fp = fopen(path, "rb");
if (!fp) return 0;
fseek(fp, 0, SEEK_END);
int size = ftell(fp);
fseek(fp, 0, SEEK_SET);
*data = new unsigned char[size];
fread(*data, size, 1, fp);
fclose(fp);
return size;
}
Sample_Debug::Sample_Debug() :
m_chf(0),
@@ -44,13 +57,13 @@ Sample_Debug::Sample_Debug() :
// Test
m_chf = new rcCompactHeightfield;
if (!duReadCompactHeightfield(*m_chf, "test.chf"))
if (!duReadCompactHeightfield(*m_chf, "Tile_-13_-14_chf.bin"))
{
delete m_chf;
m_chf = 0;
}
if (m_chf)
/* if (m_chf)
{
unsigned short ymin = 0xffff;
unsigned short ymax = 0;
@@ -68,7 +81,46 @@ Sample_Debug::Sample_Debug() :
maxSpans = rcMax(maxSpans, (int)m_chf->cells[i].count);
}
printf("maxSpans = %d\n", maxSpans);
}*/
/* const float orig[3] = {0,0,0};
m_navMesh = new dtNavMesh;
m_navMesh->init(orig, 133.333f,133.333f, 2048, 4096, 4096);
unsigned char* data = 0;
int dataSize = 0;
// Tile_-13_-14.bin is basically just the bytes that was output by Detour. It should be loaded at X: -13 and Y: -14.
dataSize = loadBin("Tile_-13_-13.bin", &data);
if (dataSize > 0)
{
m_navMesh->addTileAt(-13,-13, data, dataSize, true);
dtMeshHeader* header = (dtMeshHeader*)data;
vcopy(m_bmin, header->bmin);
vcopy(m_bmax, header->bmax);
}
dataSize = loadBin("Tile_-13_-14.bin", &data);
if (dataSize > 0)
{
m_navMesh->addTileAt(-13,-14, data, dataSize, true);
}
dataSize = loadBin("Tile_-14_-14.bin", &data);
if (dataSize > 0)
{
m_navMesh->addTileAt(-14,-14, data, dataSize, true);
}
const float ext[3] = {40,100,40};
const float center[3] = { -1667.9491f, 135.52649f, -1680.6149f };
dtQueryFilter filter;
m_ref = m_navMesh->findNearestPoly(center, ext, &filter, 0);
vcopy(m_ext, ext);
vcopy(m_center, center);*/
}
Sample_Debug::~Sample_Debug()
@@ -99,6 +151,18 @@ void Sample_Debug::handleRender()
// duDebugDrawCompactHeightfieldSolid(&dd, *m_chf);
}
if (m_navMesh)
duDebugDrawNavMesh(&dd, m_navMesh, DU_DRAWNAVMESH_CLOSEDLIST|DU_DRAWNAVMESH_OFFMESHCONS);
if (m_ref)
duDebugDrawNavMeshPoly(&dd, m_navMesh, m_ref, duRGBA(255,0,0,128));
float bmin[3], bmax[3];
vsub(bmin, m_center, m_ext);
vadd(bmax, m_center, m_ext);
duDebugDrawBoxWire(&dd, bmin[0],bmin[1],bmin[2], bmax[0],bmax[1],bmax[2], duRGBA(255,255,255,128), 1.0f);
duDebugDrawCross(&dd, m_center[0], m_center[1], m_center[2], 1.0f, duRGBA(255,255,255,128), 2.0f);
if (m_cset)
duDebugDrawRawContours(&dd, *m_cset);
}
@@ -114,12 +178,18 @@ void Sample_Debug::handleMeshChanged(InputGeom* geom)
const float* Sample_Debug::getBoundsMin()
{
if (m_navMesh)
return m_bmin;
if (!m_chf) return 0;
return m_chf->bmin;
}
const float* Sample_Debug::getBoundsMax()
{
if (m_navMesh)
return m_bmax;
if (!m_chf) return 0;
return m_chf->bmax;
}