C++ IVMapManager::getHeight方法代码示例

float TerrainInfo::GetHeightStatic(float x, float y, float z, bool useVmaps/*=true*/, float maxSearchDist/*=DEFAULT_HEIGHT_SEARCH*/) const
{
    float mapHeight = VMAP_INVALID_HEIGHT_VALUE;            // Store Height obtained by maps
    float vmapHeight = VMAP_INVALID_HEIGHT_VALUE;           // Store Height obtained by vmaps (in "corridor" of z (or slightly above z)

    float z2 = z + 2.f;

    // find raw .map surface under Z coordinates (or well-defined above)
    if (GridMap* gmap = const_cast<TerrainInfo*>(this)->GetGrid(x, y))
        mapHeight = gmap->getHeight(x, y);

    if (useVmaps)
    {
        VMAP::IVMapManager* vmgr = VMAP::VMapFactory::createOrGetVMapManager();
        if (vmgr && vmgr->isHeightCalcEnabled())
        {
            // if mapHeight has been found search vmap height at least until mapHeight point
            // this prevent case when original Z "too high above ground and vmap height search fail"
            // this will not affect most normal cases (no map in instance, or stay at ground at continent)
            if (mapHeight > INVALID_HEIGHT && z2 - mapHeight > maxSearchDist)
                maxSearchDist = z2 - mapHeight + 1.0f;      // 1.0 make sure that we not fail for case when map height near but above for vamp height

            // look from a bit higher pos to find the floor
            vmapHeight = vmgr->getHeight(GetMapId(), x, y, z2, maxSearchDist);

            // if not found in expected range, look for infinity range (case of far above floor, but below terrain-height)
            if (vmapHeight <= INVALID_HEIGHT)
                vmapHeight = vmgr->getHeight(GetMapId(), x, y, z2, 10000.0f);

            // still not found, look near terrain height
            if (vmapHeight <= INVALID_HEIGHT && mapHeight > INVALID_HEIGHT && z2 < mapHeight)
                vmapHeight = vmgr->getHeight(GetMapId(), x, y, mapHeight + 2.0f, DEFAULT_HEIGHT_SEARCH);
        }
    }

    // mapHeight set for any above raw ground Z or <= INVALID_HEIGHT
    // vmapheight set for any under Z value or <= INVALID_HEIGHT
    if (vmapHeight > INVALID_HEIGHT)
    {
        if (mapHeight > INVALID_HEIGHT)
        {
            // we have mapheight and vmapheight and must select more appropriate

            // we are already under the surface or vmap height above map heigt
            if (z < mapHeight || vmapHeight > mapHeight)
                return vmapHeight;
            else
                return mapHeight;                           // better use .map surface height
        }
        else
            return vmapHeight;                              // we have only vmapHeight (if have)
    }

    return mapHeight;
}

float TerrainHolder::GetLandHeight(float x, float y, float z)
{
    float adtheight = GetADTLandHeight(x, y);

    VMAP::IVMapManager* vmgr = VMAP::VMapFactory::createOrGetVMapManager();
    float vmapheight = vmgr->getHeight(m_mapid, x, y, z + 0.5f, 10000.0f);

    if (adtheight > z)
        return vmapheight; //underground
    return std::max(vmapheight, adtheight);
}

float TerrainInfo::GetHeight(float x, float y, float z, bool pUseVmaps, float maxSearchDist) const
{
    // find raw .map surface under Z coordinates
    float mapHeight;
    float z2 = z + 2.f;
    if (GridMap *gmap = const_cast<TerrainInfo*>(this)->GetGrid(x, y))
    {
        float _mapheight = gmap->getHeight(x,y);

        // look from a bit higher pos to find the floor, ignore under surface case
        if (z2 > _mapheight)
            mapHeight = _mapheight;
        else
            mapHeight = VMAP_INVALID_HEIGHT_VALUE;
    }
    else
        mapHeight = VMAP_INVALID_HEIGHT_VALUE;

    float vmapHeight;
    if (pUseVmaps)
    {
        VMAP::IVMapManager* vmgr = VMAP::VMapFactory::createOrGetVMapManager();
        if (vmgr->isHeightCalcEnabled())
        {
            // if mapHeight has been found search vmap height at least until mapHeight point
            // this prevent case when original Z "too high above ground and vmap height search fail"
            // this will not affect most normal cases (no map in instance, or stay at ground at continent)
            if (mapHeight > INVALID_HEIGHT && z2 - mapHeight > maxSearchDist)
                maxSearchDist = z2 - mapHeight + 1.0f;      // 1.0 make sure that we not fail for case when map height near but above for vamp height

            // look from a bit higher pos to find the floor
            vmapHeight = vmgr->getHeight(GetMapId(), x, y, z2, maxSearchDist);
        }
        else
            vmapHeight = VMAP_INVALID_HEIGHT_VALUE;
    }
    else
        vmapHeight = VMAP_INVALID_HEIGHT_VALUE;

    // mapHeight set for any above raw ground Z or <= INVALID_HEIGHT
    // vmapheight set for any under Z value or <= INVALID_HEIGHT

    if (vmapHeight > INVALID_HEIGHT)
    {
        if (mapHeight > INVALID_HEIGHT)
        {
            // we have mapheight and vmapheight and must select more appropriate

            // we are already under the surface or vmap height above map heigt
            // or if the distance of the vmap height is less the land height distance
            if (z < mapHeight || vmapHeight > mapHeight || fabs(mapHeight-z) > fabs(vmapHeight-z))
                return vmapHeight;
            else
                return mapHeight;                           // better use .map surface height

        }
        else
            return vmapHeight;                              // we have only vmapHeight (if have)
    }

    return mapHeight;
}