llGetParcelFlags how does it work

Hi all first post so go easy:

I am working on a Drone/Bot that flies around the sim.

It gets its current position and calculates its new position, but before it moves to the new position I need to know if it can enter the parcel, if it cant it works out a new position.

The parcel needs to be able to run scripts and allow object entery.

I have looked at llGetParcelFlags but I don’t get how this works.

Can you give me some pointers?

Taken from http://wiki.secondlife.com/wiki/LSL_llGetParcelFlags

if (!(llGetParcelFlags(llGetPos()) & PARCEL_FLAG_ALLOW_FLY))
llSay(0,"You are not allowed to fly here!, Sorry!.";

The above did not work

Without seeing the rest of the code that went around that snippet, it is hard to see of you actually used it correctly.

From:
http://lslwiki.net/lslwiki/wakka.php?wakka=llGetParcelFlags

  // Show all the parcel flags for land the object is currently over.
  default
  {
      state_entry ()
      {
          integer Parcel_Flags = llGetParcelFlags(llGetPos ());
          if (PARCEL_FLAG_ALLOW_FLY & Parcel_Flags)
          {
              llOwnerSay ("Parcel allows flying.");
          }
          if (PARCEL_FLAG_ALLOW_SCRIPTS & Parcel_Flags)
          {
              llOwnerSay ("Parcel allows outside scripts.");
          }
          if (PARCEL_FLAG_ALLOW_TERRAFORM & Parcel_Flags)
          {
              llOwnerSay ("Parcel allows terraforming.");
          }
          if (PARCEL_FLAG_ALLOW_DAMAGE & Parcel_Flags)
          {
              llOwnerSay ("Parcel allows damage.");
          }
          if (PARCEL_FLAG_ALLOW_CREATE_OBJECTS & Parcel_Flags)
          {
              llOwnerSay ("Parcel allows creating objects.");
          }
          if (PARCEL_FLAG_USE_ACCESS_GROUP & Parcel_Flags)
          {
              llOwnerSay ("Parcel limits access to a group.");
          }
          if (PARCEL_FLAG_USE_ACCESS_LIST & Parcel_Flags)
          {
              llOwnerSay ("Parcel limits access to a list of residents .");
          }
          if (PARCEL_FLAG_USE_BAN_LIST & Parcel_Flags)
          {
              llOwnerSay ("Parcel uses a ban list.");
          }
          if (PARCEL_FLAG_USE_LAND_PASS_LIST & Parcel_Flags)
          {
              llOwnerSay ("Parcel allows passes to be purchased.");
          }
          if (PARCEL_FLAG_LOCAL_SOUND_ONLY & Parcel_Flags)
          {
              llOwnerSay ("Parcel restricts spatialised sound to the parcel.");
          }
          if (PARCEL_FLAG_RESTRICT_PUSHOBJECT & Parcel_Flags)
          {
              llOwnerSay ("Parcel restricts llPushObject.");
          }
      }
      touch_end (integer n)
      {
          llResetScript ();
      }
  }
  

I know for a fact that works but it is looking for what IS allowed. Your snippet is looking for what ISN'T allowed which would make the script I posted look like:

 // Show all the parcel flags for land the object is currently over.
 default
 {
     state_entry ()
     {
         integer Parcel_Flags = llGetParcelFlags(llGetPos ());
         if (!(PARCEL_FLAG_ALLOW_FLY & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not flying.");
         }
         if (!(PARCEL_FLAG_ALLOW_SCRIPTS & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not allow outside scripts.");
         }
         if (!(PARCEL_FLAG_ALLOW_TERRAFORM & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not allow terraforming.");
         }
         if (!(PARCEL_FLAG_ALLOW_DAMAGE & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not allow damage.");
         }
         if (!(PARCEL_FLAG_ALLOW_CREATE_OBJECTS & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not allow creating objects.");
         }
         if (!(PARCEL_FLAG_USE_ACCESS_GROUP & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not limit access to a group.");
         }
         if (!(PARCEL_FLAG_USE_ACCESS_LIST & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not limit access to a list of residents .");
         }
         if (!(PARCEL_FLAG_USE_BAN_LIST & Parcel_Flags))
         {
             llOwnerSay ("Parcel uses a ban list.");
         }
         if (PARCEL_FLAG_USE_LAND_PASS_LIST & Parcel_Flags)
         {
             llOwnerSay ("Parcel does not allow passes to be purchased.");
         }
         if (!(PARCEL_FLAG_LOCAL_SOUND_ONLY & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not restrict spatialised sound to the parcel.");
         }
         if (!(PARCEL_FLAG_RESTRICT_PUSHOBJECT & Parcel_Flags))
         {
             llOwnerSay ("Parcel does not restrict llPushObject.");
         }
     }
     touch_end (integer n)
     {
         llResetScript ();
     }
 }
 

:edit to add:
By the way, in my first example, if any one of the conditions is NOT true the script will NOT give you a reply on that particular flag and opposite for the second example.

If you tried using your posted snippet in a parcel that DOES allow flying you would not have gotten a reply.

Thanks Laurence Corleone

Thats just what i need...i'll try it in world later.

what your doing in theroy may work but im not sure if you can detect single areas you may be able to wire in a sensor that detects parcels that are around the drone and relays it back but ya... i have to acculy try it in my 1/2 scripted flying gun XD