Method updateSelection

Engine/source/Verve/VPath/VPathEditor.cpp:414–465

//-----------------------------------------------------------------------------

bool VPathEditor::updateSelection( const Gui3DMouseEvent &pEvent )
{
    const Point3F pt0 = pEvent.pos;
    const Point3F pt1 = pEvent.pos + pEvent.vec * gProjectDistance;

    RayInfo ri;
    if ( !gServerContainer.collideBox( pt0, pt1, MarkerObjectType, &ri ) )
    {
        // No Object.
        return false;
    }

    VPath *path = dynamic_cast<VPath*>( ri.object );
    if ( !path )
    {
        // No Path Object.
        return false;
    }

    // No Node.
    S32 nodeIndex = -1;

    for ( VPathNodeIterator itr = path->mNodeList.begin(); itr != path->mNodeList.end(); itr++ )
    {
        VPathNode *node = ( *itr );

        Point3F projPosition;
        project( node->getWorldPosition(), &projPosition );

        if ( projPosition.z <= 0.0f )
        {
            continue;
        }

        const Point2I rectHalfSize( 8, 8 );
        const Point2I screenPosition( ( S32 )projPosition.x, ( S32 )projPosition.y );
        const RectI   screenRect( screenPosition - rectHalfSize, 2 * rectHalfSize );

        // Mouse Close Enough?
        if ( screenRect.pointInRect( pEvent.mousePoint ) )
        {
            // Select Node.
            nodeIndex = ( itr - path->mNodeList.begin() );
        }
    }

    // Set Selection.
    updateSelection( path, nodeIndex );

    // Valid Selection.
    return true;
}

void VPathEditor::updateSelection( VPath *pPathObject, const S32 &pNodeIndex )
{