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RecastDemo: add Load & Save buttons for SoloMesh Sample, and fix warnings (#258)

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* Implement saveAll loadAll for Sample_SoloMesh

 - Solo mesh sample is loaded and saved as a tiled mesh containing
   an unique tile, so as to remain compatible with tiled mesh
 - navmesh is saved to/loaded from `solo_navmesh.bin` binary file
 - add and connect the corresponding 'Save/Load' GUI elements

* Fix `implit-fallthrough` gcc warnings

On linux with gcc 7.2.0+ and all warnings treated as errors,
implicit fallthroughs in case statements are considered as errors.
If the comment just below the next `case` or `default` matches
various strings, one of which is `falls through` the fallthrough
is then considered explicit.
This commit is contained in:
Aurelien Rainone
2018-01-05 12:38:53 +01:00
committed by Jakob Botsch Nielsen
parent bda59b7c62
commit 4988ecbaf0
7 changed files with 154 additions and 114 deletions
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112
RecastDemo/Source/Sample_TileMesh.cpp
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@@ -242,114 +242,6 @@ struct NavMeshTileHeader
int dataSize;
};
void Sample_TileMesh::saveAll(const char* path, const dtNavMesh* mesh)
{
if (!mesh) return;
FILE* fp = fopen(path, "wb");
if (!fp)
return;
// Store header.
NavMeshSetHeader header;
header.magic = NAVMESHSET_MAGIC;
header.version = NAVMESHSET_VERSION;
header.numTiles = 0;
for (int i = 0; i < mesh->getMaxTiles(); ++i)
{
const dtMeshTile* tile = mesh->getTile(i);
if (!tile || !tile->header || !tile->dataSize) continue;
header.numTiles++;
}
memcpy(&header.params, mesh->getParams(), sizeof(dtNavMeshParams));
fwrite(&header, sizeof(NavMeshSetHeader), 1, fp);
// Store tiles.
for (int i = 0; i < mesh->getMaxTiles(); ++i)
{
const dtMeshTile* tile = mesh->getTile(i);
if (!tile || !tile->header || !tile->dataSize) continue;
NavMeshTileHeader tileHeader;
tileHeader.tileRef = mesh->getTileRef(tile);
tileHeader.dataSize = tile->dataSize;
fwrite(&tileHeader, sizeof(tileHeader), 1, fp);
fwrite(tile->data, tile->dataSize, 1, fp);
}
fclose(fp);
}
dtNavMesh* Sample_TileMesh::loadAll(const char* path)
{
FILE* fp = fopen(path, "rb");
if (!fp) return 0;
// Read header.
NavMeshSetHeader header;
size_t readLen = fread(&header, sizeof(NavMeshSetHeader), 1, fp);
if (readLen != 1)
{
fclose(fp);
return 0;
}
if (header.magic != NAVMESHSET_MAGIC)
{
fclose(fp);
return 0;
}
if (header.version != NAVMESHSET_VERSION)
{
fclose(fp);
return 0;
}
dtNavMesh* mesh = dtAllocNavMesh();
if (!mesh)
{
fclose(fp);
return 0;
}
dtStatus status = mesh->init(&header.params);
if (dtStatusFailed(status))
{
fclose(fp);
return 0;
}
// Read tiles.
for (int i = 0; i < header.numTiles; ++i)
{
NavMeshTileHeader tileHeader;
readLen = fread(&tileHeader, sizeof(tileHeader), 1, fp);
if (readLen != 1)
{
fclose(fp);
return 0;
}
if (!tileHeader.tileRef || !tileHeader.dataSize)
break;
unsigned char* data = (unsigned char*)dtAlloc(tileHeader.dataSize, DT_ALLOC_PERM);
if (!data) break;
memset(data, 0, tileHeader.dataSize);
readLen = fread(data, tileHeader.dataSize, 1, fp);
if (readLen != 1)
{
fclose(fp);
return 0;
}
mesh->addTile(data, tileHeader.dataSize, DT_TILE_FREE_DATA, tileHeader.tileRef, 0);
}
fclose(fp);
return mesh;
}
void Sample_TileMesh::handleSettings()
{
Sample::handleCommonSettings();
@@ -401,13 +293,13 @@ void Sample_TileMesh::handleSettings()
if (imguiButton("Save"))
{
saveAll("all_tiles_navmesh.bin", m_navMesh);
Sample::saveAll("all_tiles_navmesh.bin", m_navMesh);
}
if (imguiButton("Load"))
{
dtFreeNavMesh(m_navMesh);
m_navMesh = loadAll("all_tiles_navmesh.bin");
m_navMesh = Sample::loadAll("all_tiles_navmesh.bin");
m_navQuery->init(m_navMesh, 2048);
}