net.WriteUInt(ent:EntIndex(), 20)

        local owner = ent:CPPIGetOwner()
        net.WriteUInt(IsValid(owner) and owner:EntIndex() or -1, 20)
        net.WriteUInt(ent.FPPRestrictConstraint and ent.FPPRestrictConstraint[ply] or ent.FPPCanTouch[ply], 4) -- touchability information
        net.WriteUInt(ent.FPPConstraintReasons and ent.FPPConstraintReasons[ply] or ent.FPPCanTouchWhy[ply], 4) -- reasons