bool Topic_04_NavMesh::onCreate(int a_argc, char* a_argv[])
{
// initialise the Gizmos helper class
Gizmos::create();
// create a world-space matrix for a camera
m_cameraMatrix = glm::inverse( glm::lookAt(glm::vec3(10,10,10),glm::vec3(0,0,0), glm::vec3(0,1,0)) );
// create a perspective projection matrix with a 90 degree field-of-view and widescreen aspect ratio
m_projectionMatrix = glm::perspective(glm::pi<float>() * 0.25f, DEFAULT_SCREENWIDTH/(float)DEFAULT_SCREENHEIGHT, 0.1f, 1000.0f);
// set the clear colour and enable depth testing and backface culling
glClearColor(0.25f,0.25f,0.25f,1);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
m_sponza = new FBXFile();
m_sponza->load("./resources/models/SponzaSimple.fbx", FBXFile::UNITS_CENTIMETER);
createOpenGLBuffers(m_sponza);
m_navMesh = new FBXFile();
m_navMesh->load("./resources/models/SponzaSimpleNavMesh.fbx", FBXFile::UNITS_CENTIMETER);
// createOpenGLBuffers(m_navMesh);
buildNavMesh(m_navMesh->getMeshByIndex(0), m_graph);
unsigned int vertShader = Utility::loadShader("./resources/shaders/sponza.vert", GL_VERTEX_SHADER);
unsigned int fragShader = Utility::loadShader("./resources/shaders/sponza.frag", GL_FRAGMENT_SHADER);
m_shaderProgram = Utility::createProgram(vertShader, 0, 0, 0, fragShader);
glDeleteShader(vertShader);
glDeleteShader(fragShader);
return true;
}
void MapBuilder::buildMeshFromFile(char* name)
{
FILE* file = fopen(name, "rb");
if (!file)
return;
printf("Building mesh from file\n");
int tileX, tileY, mapId;
if (fread(&mapId, sizeof(int), 1, file) != 1)
return;
if (fread(&tileX, sizeof(int), 1, file) != 1)
return;
if (fread(&tileY, sizeof(int), 1, file) != 1)
return;
dtNavMesh* navMesh = NULL;
buildNavMesh(mapId, navMesh);
if (!navMesh)
{
printf("Failed creating navmesh! \n");
fclose(file);
return;
}
uint32 verticesCount, indicesCount;
if (fread(&verticesCount, sizeof(uint32), 1, file) != 1)
return;
if (fread(&indicesCount, sizeof(uint32), 1, file) != 1)
return;
float* verts = new float[verticesCount];
int* inds = new int[indicesCount];
if (fread(verts, sizeof(float), verticesCount, file) != verticesCount)
return;
if (fread(inds, sizeof(int), indicesCount, file) != indicesCount)
return;
MeshData data;
for (uint32 i = 0; i < verticesCount; ++i)
data.solidVerts.append(verts[i]);
for (uint32 i = 0; i < indicesCount; ++i)
data.solidTris.append(inds[i]);
TerrainBuilder::cleanVertices(data.solidVerts, data.solidTris);
// get bounds of current tile
float bmin[3], bmax[3];
getTileBounds(tileX, tileY, data.solidVerts.getCArray(), data.solidVerts.size() / 3, bmin, bmax);
// build navmesh tile
buildMoveMapTile(mapId, tileX, tileY, data, bmin, bmax, navMesh);
fclose(file);
}
void MapBuilder::buildMap(uint32 mapID)
{
#ifndef __APPLE__
//printf("[Thread %u] Building map %03u:\n", uint32(ACE_Thread::self()), mapID);
#endif
std::set<uint32>* tiles = getTileList(mapID);
// make sure we process maps which don't have tiles
if (!tiles->size())
{
// convert coord bounds to grid bounds
uint32 minX, minY, maxX, maxY;
getGridBounds(mapID, minX, minY, maxX, maxY);
// add all tiles within bounds to tile list.
for (uint32 i = minX; i <= maxX; ++i)
for (uint32 j = minY; j <= maxY; ++j)
tiles->insert(StaticMapTree::packTileID(i, j));
}
if (!tiles->empty())
{
// build navMesh
dtNavMesh* navMesh = NULL;
buildNavMesh(mapID, navMesh);
if (!navMesh)
{
printf("[Map %04i] Failed creating navmesh!\n", mapID);
return;
}
// now start building mmtiles for each tile
printf("[Map %04i] We have %u tiles. \n", mapID, (unsigned int)tiles->size());
for (std::set<uint32>::iterator it = tiles->begin(); it != tiles->end(); ++it)
{
uint32 tileX, tileY;
// unpack tile coords
StaticMapTree::unpackTileID((*it), tileX, tileY);
if (shouldSkipTile(mapID, tileX, tileY))
continue;
buildTile(mapID, tileX, tileY, navMesh);
}
dtFreeNavMesh(navMesh);
}
printf("[Map %04u] Complete!\n", mapID);
}
void MapBuilder::buildSingleTile(uint32 mapID, uint32 tileX, uint32 tileY)
{
dtNavMesh* navMesh = NULL;
buildNavMesh(mapID, navMesh);
if (!navMesh)
{
printf("Failed creating navmesh! \n");
return;
}
buildTile(mapID, tileX, tileY, navMesh);
dtFreeNavMesh(navMesh);
}
void MapBuilder::buildMap(int mapID)
{
printf("Building map %03u:\n", mapID);
set<int>* tiles = getTileList(mapID);
// make sure we process maps which don't have tiles
if (!tiles->size())
{
// convert coord bounds to grid bounds
int minX, minY, maxX, maxY;
getGridBounds(mapID, minX, minY, maxX, maxY);
// add all tiles within bounds to tile list.
for (int i = minX; i <= maxX; ++i)
for (int j = minY; j <= maxY; ++j)
{ tiles->insert(StaticMapTree::packTileID(i, j)); }
}
if (!tiles->size())
{ return; }
// build navMesh
dtNavMesh* navMesh = NULL;
buildNavMesh(mapID, navMesh);
if (!navMesh)
{
printf("Failed creating navmesh! \n");
return;
}
// now start building mmtiles for each tile
printf("We have %u tiles. \n", (unsigned int)tiles->size());
for (set<int>::iterator it = tiles->begin(); it != tiles->end(); ++it)
{
int tileX, tileY;
// unpack tile coords
StaticMapTree::unpackTileID((*it), tileX, tileY);
if (shouldSkipTile(mapID, tileX, tileY))
{ continue; }
buildTile(mapID, tileX, tileY, navMesh);
}
dtFreeNavMesh(navMesh);
printf("Complete! \n\n");
}
bool RecastInterface::buildNavMesh(std::vector<Ogre::Entity*> sourceMeshes)
{
if(sourceMeshes.empty())
{
std::cout << "NavMesh build failed: No entities provided" << std::endl;
Ogre::LogManager::getSingletonPtr()->logMessage("NavMesh build failed: No entities provided");
return false;
}
InputGeometry* param = new InputGeometry(sourceMeshes);
bool result = buildNavMesh(param);
delete param;
return result;
}
void MapBuilder::buildSingleTile(int mapID, int tileX, int tileY)
{
dtNavMesh* navMesh = NULL;
dtNavMeshParams* meshParams = NULL;
buildNavMesh(mapID, navMesh, meshParams);
if (!navMesh)
{
printf("Failed creating navmesh! \n");
return;
}
buildTile(mapID, tileX, tileY, navMesh);
dtFreeNavMesh(navMesh);
if (meshParams)
{ delete meshParams; }
}
static int create_navmesh_exec(bContext *C, wmOperator *op)
{
Scene* scene= CTX_data_scene(C);
LinkNode* obs= NULL;
Base* navmeshBase= NULL;
CTX_DATA_BEGIN(C, Base*, base, selected_editable_bases) {
if (base->object->type == OB_MESH) {
if (base->object->body_type==OB_BODY_TYPE_NAVMESH) {
if (!navmeshBase || base == scene->basact) {
navmeshBase= base;
}
}
else {
BLI_linklist_append(&obs, (void*)base->object);
}
}
}
CTX_DATA_END;
if (obs) {
struct recast_polyMesh *pmesh= NULL;
struct recast_polyMeshDetail *dmesh= NULL;
int nverts= 0, ntris= 0;
int *tris= 0;
float *verts= NULL;
createVertsTrisData(C, obs, &nverts, &verts, &ntris, &tris);
BLI_linklist_free(obs, NULL);
buildNavMesh(&scene->gm.recastData, nverts, verts, ntris, tris, &pmesh, &dmesh);
createRepresentation(C, pmesh, dmesh, navmeshBase);
MEM_freeN(verts);
MEM_freeN(tris);
return OPERATOR_FINISHED;
}
else {
BKE_report(op->reports, RPT_ERROR, "No mesh objects found");
return OPERATOR_CANCELLED;
}
}
void MapBuilder::buildMap(int mapID, bool standAlone)
{
set<uint32>* tiles = getTileList(mapID);
// make sure we process maps which don't have tiles
if (!tiles->size())
{
// convert coord bounds to grid bounds
uint32 minX, minY, maxX, maxY;
getGridBounds(mapID, minX, minY, maxX, maxY);
// add all tiles within bounds to tile list.
for (uint32 i = minX; i <= maxX; ++i)
for (uint32 j = minY; j <= maxY; ++j)
{ tiles->insert(StaticMapTree::packTileID(i, j)); }
}
if (!tiles->size())
{ return; }
// build navMesh
dtNavMesh* navMesh = NULL;
dtNavMeshParams* meshParams = NULL;
buildNavMesh(mapID, navMesh, meshParams);
if (!navMesh)
{
printf("Failed creating navmesh for map %03u! \n", mapID);
if (meshParams)
{ delete meshParams; }
return;
}
if (activated())
{ dtFreeNavMesh(navMesh); } // each tile will get it's own pointer to navMesh
// now start building/scheduling mmtiles for each tile
printf(" %s map %03u [%u tiles]\n", activated() ? "Scheduling" : "Building", mapID, (unsigned int)tiles->size());
for (set<uint32>::iterator it = tiles->begin(); it != tiles->end(); ++it)
{
uint32 tileX, tileY;
// unpack tile coords
StaticMapTree::unpackTileID((*it), tileX, tileY);
if (shouldSkipTile(mapID, tileX, tileY))
{ continue; }
if (!activated())
{
buildTile(mapID, tileX, tileY, navMesh);
}
else
{
dtNavMesh *mesh = NULL;
buildNavMesh(mapID, mesh, meshParams); //meshParams is not null, so we get a new pointer to dtNavMesh
if (mesh)
{
TileBuilder* tb = new TileBuilder(this, mapID, tileX, tileY, mesh);
Tile_Message_Block *mb = new Tile_Message_Block(tb);
if (m_threadPool->putq(mb) == -1)
{ break; }
}
}
}
if (activated() && standAlone)
{
Tile_Message_Block *finish_mb = new Tile_Message_Block(NULL);
finish_mb->msg_type(ACE_Message_Block::MB_HANGUP);
m_threadPool->putq(finish_mb);
m_threadPool->wait();
}
if (!activated())
{ dtFreeNavMesh(navMesh); }
if (meshParams)
{ delete meshParams; }
if (!activated())
{ printf(" Map %03u complete!\n\n", mapID); }
}
