void CTargetMgr::CheckForIntersect(float &fDistAway)
{
m_hTarget = LTNULL;
m_ActivationData.Init();
uint32 dwUsrFlags = 0;
const float fMaxDist = 100000.0f;
// Cast ray from the camera to see if there is an object to activate...
LTRotation rRot;
LTVector vPos;
HLOCALOBJ hCamera = g_pPlayerMgr->GetCamera();
g_pLTClient->GetObjectPos(hCamera, &vPos);
g_pLTClient->GetObjectRotation(hCamera, &rRot);
m_ActivationData.m_vPos = vPos;
m_ActivationData.m_rRot = rRot;
IntersectQuery IQuery;
IntersectInfo IInfo;
IQuery.m_From = vPos;
IQuery.m_To = IQuery.m_From + (rRot.Forward() * fMaxDist);
// NOTE the use of the CHECK_FROM_POINT_INSIDE_OBJECTS flag. This flag will
// make sure that any objects that m_From is inside are considered
IQuery.m_Flags = CHECK_FROM_POINT_INSIDE_OBJECTS | INTERSECT_HPOLY | INTERSECT_OBJECTS | IGNORE_NONSOLID;
IQuery.m_FilterActualIntersectFn = ActivateFilterFn;
IQuery.m_pActualIntersectUserData = (void*)&IQuery;
IQuery.m_PolyFilterFn = DoVectorPolyFilterFn;
// [KLS 8/3/02] - ActivateFilterFn may save an object to use that may not be
// the best activation choice (i.e., a fallback choice). However, if a
// better choice isn't found, the fallback choice should be used. That
// fallback choice is stored in g_adFallbackActivationObject so we clear
// it here...
g_adFallbackActivationObject.Init();
if (g_pLTClient->IntersectSegment(&IQuery, &IInfo))
{
m_ActivationData.m_vIntersect = IInfo.m_Point;
if (IsMainWorld(IInfo.m_hObject))
{
if (IInfo.m_hPoly != INVALID_HPOLY)
{
SurfaceType eType = GetSurfaceType(IInfo.m_hPoly);
SURFACE *pSurf = g_pSurfaceMgr->GetSurface(eType);
// See if the surface we tried to activate has an activation
// sound...If so, the user can activate it...
if (pSurf && pSurf->szActivationSnd[0] && pSurf->fActivationSndRadius > 0)
{
m_hTarget = IInfo.m_hObject;
m_ActivationData.m_hTarget = m_hTarget;
m_ActivationData.m_nSurfaceType = eType;
}
}
}
else
{
LTVector vObjPos = m_ActivationData.m_vIntersect;
vObjPos -= vPos;
if (vObjPos.Mag() <= fMaxDist)
{
m_hTarget = IInfo.m_hObject;
m_ActivationData.m_hTarget = m_hTarget;
}
}
// Calculate how far away the object is...
LTVector vDist = m_ActivationData.m_vIntersect - vPos;
fDistAway = vDist.Mag();
}
// [KLS 8/3/02] - Use the fallback object if we have one and we didn't
// find another object more suitable object...
bool bCanUseFallback = (m_ActivationData.m_hTarget ? false : true);
if (!bCanUseFallback)
{
// We can still use the fallback object if it isn't the world or a
// world model...
if (IsMainWorld(m_ActivationData.m_hTarget) ||
OT_WORLDMODEL == GetObjectType(m_ActivationData.m_hTarget))
{
bCanUseFallback = true;
}
}
if ( bCanUseFallback && g_adFallbackActivationObject.m_hTarget )
{
// Ok we hit the fallback object reset some of our target data
LTVector vObjPos;
g_pLTClient->GetObjectPos(g_adFallbackActivationObject.m_hTarget, &vObjPos);
m_ActivationData.m_vIntersect = vObjPos;
vObjPos -= vPos;
if (vObjPos.Mag() <= fMaxDist)
{
m_hTarget = g_adFallbackActivationObject.m_hTarget;
m_ActivationData.m_hTarget = m_hTarget;
}
// Calculate how far away the object is...
LTVector vDist = m_ActivationData.m_vIntersect - vPos;
fDistAway = vDist.Mag();
}
}
void CTargetMgr::CheckForIntersect(float &fDistAway)
{
m_hTarget = NULL;
m_ActivationData.Init();
// Cast ray from the camera to see if there is an object to activate...
LTRotation const& rRot = g_pPlayerMgr->GetPlayerCamera()->GetCameraRotation( );;
LTVector const& vPos = g_pPlayerMgr->GetPlayerCamera()->GetCameraPos( );
m_ActivationData.m_vPos = vPos;
m_ActivationData.m_rRot = rRot;
IntersectQuery IQuery;
IntersectInfo IInfo;
IQuery.m_From = vPos;
IQuery.m_To = IQuery.m_From + (rRot.Forward() * kMaxDistance);
// NOTE the use of the CHECK_FROM_POINT_INSIDE_OBJECTS flag. This flag will
// make sure that any objects that m_From is inside are considered
IQuery.m_Flags = CHECK_FROM_POINT_INSIDE_OBJECTS | INTERSECT_HPOLY | INTERSECT_OBJECTS | IGNORE_NONSOLID;
IQuery.m_FilterActualIntersectFn = ActivateFilterFn;
IQuery.m_pActualIntersectUserData = (void*)&IQuery;
IQuery.m_PolyFilterFn = NULL;
// [KLS 8/3/02] - ActivateFilterFn may save an object to use that may not be
// the best activation choice (i.e., a fallback choice). However, if a
// better choice isn't found, the fallback choice should be used. That
// fallback choice is stored in g_adFallbackActivationObject so we clear
// it here...
g_adFallbackActivationObject.Init();
if (g_pLTClient->IntersectSegment(IQuery, &IInfo))
{
m_ActivationData.m_vIntersect = IInfo.m_Point;
bool bHitSky = false;
if (IsMainWorld(IInfo.m_hObject))
{
if (IInfo.m_hPoly != INVALID_HPOLY)
{
SurfaceType eType = GetSurfaceType(IInfo.m_hPoly);
HSURFACE hSurf = g_pSurfaceDB->GetSurface(eType);
// See if the surface we tried to activate has an activation
// sound...If so, the user can activate it...
if (hSurf)
{
HRECORD hActSnd = g_pSurfaceDB->GetRecordLink(hSurf,SrfDB_Srf_rActivationSnd);
if (hActSnd && g_pSoundDB->GetFloat(hActSnd,SndDB_fOuterRadius) > 0)
{
m_hTarget = IInfo.m_hObject;
m_ActivationData.m_hTarget = m_hTarget;
m_ActivationData.m_nSurfaceType = eType;
m_ActivationData.m_hActivateSnd = hActSnd;
}
bHitSky = (ST_SKY == eType);
}
}
}
else
{
LTVector vObjPos = m_ActivationData.m_vIntersect;
vObjPos -= vPos;
if (vObjPos.Mag() <= kMaxDistance)
{
m_hTarget = IInfo.m_hObject;
m_ActivationData.m_hTarget = m_hTarget;
}
}
// Calculate how far away the object is...
LTVector vDist = m_ActivationData.m_vIntersect - vPos;
if (bHitSky)
fDistAway = kMaxDistance;
else
fDistAway = vDist.Mag();
}
// [KLS 8/3/02] - Use the fallback object if we have one and we didn't
// find another object more suitable object...
bool bCanUseFallback = (m_ActivationData.m_hTarget ? false : true);
if (!bCanUseFallback)
{
// We can still use the fallback object if it isn't the world or a
// world model...
if (IsMainWorld(m_ActivationData.m_hTarget) ||
OT_WORLDMODEL == GetObjectType(m_ActivationData.m_hTarget))
{
bCanUseFallback = true;
}
}
if ( bCanUseFallback && g_adFallbackActivationObject.m_hTarget )
{
// Ok we hit the fallback object reset some of our target data
LTVector vObjPos;
g_pLTClient->GetObjectPos(g_adFallbackActivationObject.m_hTarget, &vObjPos);
m_ActivationData.m_vIntersect = vObjPos;
vObjPos -= vPos;
if (vObjPos.Mag() <= kMaxDistance)
{
m_hTarget = g_adFallbackActivationObject.m_hTarget;
m_ActivationData.m_hTarget = m_hTarget;
}
// Calculate how far away the object is...
LTVector vDist = m_ActivationData.m_vIntersect - vPos;
fDistAway = vDist.Mag();
}
}