//
// Create the 3d scene: call vtlib to load the terrain and prepare for
// user interaction.
//
bool App::CreateScene()
{
// Get a handle to the vtScene - one is already created for you
vtScene *pScene = vtGetScene();
// Look up the camera
m_pCamera = pScene->GetCamera();
m_pCamera->SetHither(10);
m_pCamera->SetYon(100000);
// The terrain scene will contain all the terrains that are created.
m_ts = new vtTerrainScene;
// Set the global data path
vtStringArray paths;
paths.push_back(vtString("../Data/"));
paths.push_back(vtString("Data/"));
vtSetDataPath(paths);
// Begin creating the scene, including the sun and sky
vtGroup *pTopGroup = m_ts->BeginTerrainScene();
// Tell the scene graph to point to this terrain scene
pScene->SetRoot(pTopGroup);
// Create a new vtTerrain, read its paramters from a file
vtTerrain *pTerr = new vtTerrain;
pTerr->SetParamFile("Data/Simple.xml");
pTerr->LoadParams();
// Add the terrain to the scene, and contruct it
m_ts->AppendTerrain(pTerr);
if (!m_ts->BuildTerrain(pTerr))
{
printf("Terrain creation failed.\n");
return false;
}
m_ts->SetCurrentTerrain(pTerr);
// Create a navigation engine to move around on the terrain
// Get flight speed from terrain parameters
float fSpeed = pTerr->GetParams().GetValueFloat(STR_NAVSPEED);
vtTerrainFlyer *pFlyer = new vtTerrainFlyer(fSpeed);
pFlyer->SetTarget(m_pCamera);
pFlyer->SetHeightField(pTerr->GetHeightField());
pScene->AddEngine(pFlyer);
// Minimum height over terrain is 100 m
vtHeightConstrain *pConstrain = new vtHeightConstrain(100);
pConstrain->SetTarget(m_pCamera);
pConstrain->SetHeightField(pTerr->GetHeightField());
pScene->AddEngine(pConstrain);
#if 0
#include "C:/Dev/vtlibTests.cpp"
#endif
return true;
}
Vehicle *VehicleManager::CreateVehicle(const char *szType, const RGBf &cColor)
{
vtContentManager3d &con = vtGetContent();
osg::Node *node = con.CreateNodeFromItemname(szType);
if (!node)
return NULL;
Vehicle *v = CreateVehicleFromNode(node, cColor);
if (v)
v->setName(vtString("Vehicle-") + szType);
return v;
}
// Methods
static
PyObject* vtpSimple_init(PyObject* self, PyObject* args) {
// Would be usefule to include a parameter for the type of flyer
const char *sourcefile, *datadir, *debugfile;
if (!PyArg_ParseTuple(args, "sss", &sourcefile, &datadir, &debugfile))
return NULL;
m_pTerrainScene = NULL;
vtGetScene()->Init();
VTSTARTLOG(debugfile);
// Get a handle to the vtScene - one is already created for you
vtScene *pScene = vtGetScene();
// Look up the camera
vtCamera *pCamera = pScene->GetCamera();
pCamera->SetHither(10);
pCamera->SetYon(100000);
// The terrain scene will contain all the terrains that are created.
m_pTerrainScene = new vtTerrainScene;
// Set the global data path
vtStringArray paths;
paths.push_back(vtString(datadir));
pScene->SetDataPath(paths);
// Begin creating the scene, including the sun and sky
vtGroup *pTopGroup = m_pTerrainScene->BeginTerrainScene();
// Tell the scene graph to point to this terrain scene
pScene->SetRoot(pTopGroup);
// Create a new vtTerrain, read its paramters from a file
vtTerrain *pTerr = new vtTerrain;
pTerr->SetParamFile(sourcefile);
pTerr->LoadParams();
// Add the terrain to the scene, and contruct it
m_pTerrainScene->AppendTerrain(pTerr);
if (!m_pTerrainScene->BuildTerrain(pTerr))
{
printf("Couldn't create the terrain. Perhaps the elevation data file isn't in the expected location?\n");
Py_INCREF(Py_False);
return Py_False;
}
m_pTerrainScene->SetCurrentTerrain(pTerr);
// Create a navigation engine to move around on the terrain
// Get flight speed from terrain parameters
float fSpeed = pTerr->GetParams().GetValueFloat(STR_NAVSPEED);
vtTerrainFlyer *pFlyer = new vtTerrainFlyer(fSpeed);
pFlyer->SetTarget(pCamera);
pFlyer->SetHeightField(pTerr->GetHeightField());
pScene->AddEngine(pFlyer);
// Minimum height over terrain is 100 m
vtHeightConstrain *pConstrain = new vtHeightConstrain(100);
pConstrain->SetTarget(pCamera);
pConstrain->SetHeightField(pTerr->GetHeightField());
pScene->AddEngine(pConstrain);
for (int i = 0; i < 512; i++)
m_pbKeyState[i] = false;
vtGetScene()->SetKeyStates(m_pbKeyState);
printf("Done creating scene.\n");
Py_INCREF(Py_True);
return Py_True;
}
int vtUnzip::Extract(bool bFullPath, bool bOverwrite, const char *lpszDst,
bool progress_callback(int))
{
int iCount = 0;
int iTotal = GetGlobalCount();
bool bOK = true;
for (bool bContinue = GoToFirstFile(); bContinue; bContinue = GoToNextFile())
{
char szFileName[MAX_PATH];
unz_file_info info;
bOK = GetCurrentFileInfo(&info, szFileName, MAX_PATH);
if (!bOK)
break;
vtString src_filename = szFileName;
const char *short_fname = (const char *)src_filename;
for (const char *p = short_fname;
(*p) != '\0';
p++)
{
if (((*p)=='/') || ((*p)=='\\'))
{
short_fname = p+1;
}
}
vtString short_filename = short_fname;
if ((*short_filename)=='\0')
{
if (bFullPath)
{
VTLOG("creating directory: %s\n", (const char *)src_filename);
vtCreateDir(src_filename);
}
}
else
{
bOK = OpenCurrentFile();
if (bOK)
{
vtString write_filename;
write_filename = vtString(lpszDst) + (bFullPath ? src_filename : short_filename);
vtString strResult;
VTLOG("Extracting %s ...", (const char *) write_filename);
if (ExtractAccept(write_filename, bOverwrite))
{
FILE* file = vtFileOpen(write_filename, "wb");
bool bWrite = (file != NULL);
if (bWrite)
{
char buf[4096];
bWrite = ExtractCurrentFile(file, buf, 4096);
fclose(file);
}
if (bWrite)
{
vtUnzip::change_file_date(write_filename,info.dosDate, info.tmu_date);
iCount++;
if (progress_callback != NULL)
{
progress_callback(iCount * 99 / iTotal);
}
}
else
{
m_error_count++;
OnError(write_filename);
}
strResult = bWrite ? "ok" : "failed";
}
else
{
strResult = "skipped";
}
VTLOG(" %s\n", (const char *) strResult);
CloseCurrentFile();
}
}
}
if (bOK)
return iCount;
else
return -1;
}