diff --git a/libraries/physics/src/ObjectAction.cpp b/libraries/physics/src/ObjectAction.cpp index 8ed06aea5d..ff8382a143 100644 --- a/libraries/physics/src/ObjectAction.cpp +++ b/libraries/physics/src/ObjectAction.cpp @@ -247,15 +247,29 @@ bool ObjectAction::lifetimeIsOver() { } quint64 ObjectAction::localTimeToServerTime(quint64 timeValue) const { + // 0 indicates no expiration if (timeValue == 0) { return 0; } - return timeValue + getEntityServerClockSkew(); + + int serverClockSkew = getEntityServerClockSkew(); + if (serverClockSkew < 0 && timeValue <= (quint64)(-serverClockSkew)) { + return 1; // non-zero but long-expired value to avoid negative roll-over + } + + return timeValue + serverClockSkew; } quint64 ObjectAction::serverTimeToLocalTime(quint64 timeValue) const { + // 0 indicates no expiration if (timeValue == 0) { return 0; } - return timeValue - getEntityServerClockSkew(); + + int serverClockSkew = getEntityServerClockSkew(); + if (serverClockSkew > 0 && timeValue <= (quint64)serverClockSkew) { + return 1; // non-zero but long-expired value to avoid negative roll-over + } + + return timeValue - serverClockSkew; }