vtTransform *vtRoadMap3d::GenerateGeometry(bool do_texture,
bool bHwy, bool bPaved, bool bDirt, bool progress_callback(int))
{
VTLOG(" vtRoadMap3d::GenerateGeometry\n");
VTLOG(" Nodes %d, Links %d\n", NumNodes(), NumLinks());
_CreateMaterials(do_texture);
m_pGroup = new vtGroup;
m_pGroup->setName("Roads");
m_pTransform = new vtTransform;
m_pTransform->addChild(m_pGroup);
m_pTransform->SetTrans(FPoint3(0, m_fGroundOffset, 0));
// We wrap the roads' geometry with an array of simple LOD nodes
int a, b;
for (a = 0; a < ROAD_CLUSTER; a++)
for (b = 0; b < ROAD_CLUSTER; b++)
{
m_pRoads[a][b] = NULL;
}
_GatherExtents();
#if 0
vtGeode *pGeode = CreateLineGridGeom(m_pMats, 0,
m_extents.min, m_extents.max, ROAD_CLUSTER);
m_pGroup->addChild(pGeode);
#endif
vtMesh *pMesh;
int count = 0, total = NumLinks() + NumNodes();
for (LinkGeom *pL = GetFirstLink(); pL; pL = pL->GetNext())
{
// Decide whether to construct this link
bool include = false;
if (bHwy && bPaved && bDirt)
include = true;
else
{
bool bIsDirt = (pL->m_Surface == SURFT_2TRACK || pL->m_Surface == SURFT_DIRT);
if (bHwy && pL->m_iHwy != -1)
include = true;
if (bPaved && !bIsDirt)
include = true;
if (bDirt && bIsDirt)
include = true;
}
if (include)
pL->GenerateGeometry(this);
count++;
if (progress_callback != NULL)
progress_callback(count * 100 / total);
}
count = 0;
for (NodeGeom *pN = GetFirstNode(); pN; pN = pN->GetNext())
{
// What material to use? We used to simply use "pavement", but that is
// bad when they are e.g. trail or stone. Now, we will try to guess
// what to use by looking at the links here.
int node_vti = VTI_PAVEMENT;
for (int i = 0; i < pN->NumLinks(); i++)
{
LinkGeom *pL = pN->GetLink(i);
switch (pL->m_vti)
{
case VTI_RAIL:
case VTI_4WD:
case VTI_TRAIL:
case VTI_GRAVEL:
case VTI_STONE:
node_vti = pL->m_vti;
}
}
VirtualTexture &vt = m_vt[node_vti];
pMesh = pN->GenerateGeometry(vt);
if (pMesh)
AddMeshToGrid(pMesh, vt.m_idx);
count++;
if (progress_callback != NULL)
progress_callback(count * 100 / total);
}
// return the top group, ready to be added to scene graph
return m_pTransform;
}
void ApplyNewSpringLength()
{
ResetSpringLength( (m_flRopeLength + m_flCurSlack + ROPESLACK_FUDGEFACTOR) / (NumNodes() - 1) );
}
