void CLogicMirrorMovement::Think()
{
// Attempt to get the player's handle because it didn't exist at Activate time
if ( !m_hMirrorTarget.Get() )
{
// If we will never find a target, we don't have a use... shutdown
if ( m_strMirrorTarget == NULL_STRING )
SetNextThink ( NULL );
//BUGBUG: If m_strSetMirrorTarget doesn't exist in ent list, we get per-think searches with no results ever...
SetMirrorTarget ( STRING(m_strMirrorTarget) );
}
// Make sure all entities are valid
if ( m_hMirrorTarget.Get() && m_hMovementTarget.Get() && m_hRemoteTarget.Get() && m_hMirrorRelative.Get() )
{
// Get our two portal's world transforms transforms
VMatrix matPortal1ToWorldInv, matPortal2ToWorld;
MatrixInverseGeneral( m_hMirrorRelative->EntityToWorldTransform(), matPortal1ToWorldInv );
matPortal2ToWorld = m_hRemoteTarget->EntityToWorldTransform();
VMatrix matTransformToRemotePortal = matPortal1ToWorldInv * matPortal2ToWorld;
// Get our scene camera's current orientation
Vector ptCameraPosition, vCameraLook, vCameraRight, vCameraUp;
ptCameraPosition = m_hMirrorTarget->EyePosition();
m_hMirrorTarget->GetVectors ( &vCameraLook, &vCameraRight, &vCameraUp );
// map this position and orientation to the remote portal, mirrored (invert the result)
Vector ptNewPosition, vNewLook;
ptNewPosition = matPortal1ToWorldInv * ptCameraPosition;
ptNewPosition = matPortal2ToWorld*( Vector( -ptNewPosition.x, -ptNewPosition.y, ptNewPosition.z ) );
vNewLook = matPortal1ToWorldInv.ApplyRotation( vCameraLook );
vNewLook = matPortal2ToWorld.ApplyRotation( Vector( -vNewLook.x, -vNewLook.y, vNewLook.z) );
// Set the point camera to the new location/orientation
QAngle qNewAngles;
VectorAngles( vNewLook, qNewAngles );
m_hMovementTarget->Teleport( &ptNewPosition, &qNewAngles, NULL );
}
SetNextThink( gpGlobals->curtime + TICK_INTERVAL );
}
