Doors

How do i Make 2 doors open the opposit way like if i want the 2 doors open the opposit way i mean like if the door is opening right i want to make the other door open left so whoever knows plz let me know asap

in english?

Well, I suppose a similar...and more coherent question of mine is "how do you script a door that will open away from, no matter which side of it your opening it from?"

@Spike

I am assuming you already know how to make the doors rotate on a hinge.

Link the two doors as one object so that you can use the messagelinked command. That way touching either door will send a message to the other door, so both will respond.


@Agares

Two ways I can think of.

1. Use a sensor (very short range) to locate the person who touched the door. That way you know which side of the door the person is on and the door can then figure out which way to open.

2. Make the door with two prims so that touching one side will make it open one way, touch the other side to make it go the other way.

#1 is the more efficient way.

I think it depends on your definition of efficiency. #1 is certainly way more prim efficient, and that's usually more critical. I'm pretty sure #2 is friendlier to the sim and the vm though.

If I understand what Kelly and others are saying the only benefit from a shorter range sensor is fewer returns, the vm still looks for everything that meets the criteria to return them all.

There is a third way. Since the various touch events trigger the various llDetected* you don't need the sensor. llDetectedPos() is available directly. That can be used to tell you which side of the door they're on (with some smart maths) and thus determine which way to swing.

Yeah but i don't know how to make doors or hinges plus i am not a good scripter but someone told me that u have to change the script to a positive to a negative. All i Want to know is how to change from a positive to a negative. So someone explain it to me all the way through and how to make it work. I am trying to slide them not hinge them.

Sincerely,
Spike Scarborough

Try this. If you wanted them to rotate there'd have to be a little more data stored and a few more calls made.

1.) Make the doors and a frame (or threshold) prim, the latter of which will not move. Link them together. The frame/threshold should be the parent of the linkset.

2.) Put this script in each door prim (you'll have to have 'Edit linked parts' turned on and click on the door itself):

integer CHANNEL = 52;

string SET_OPEN_CMD = "setopen";
string SET_CLOSED_CMD = "setclosed";

vector openPos = ZERO_VECTOR;
vector closePos = ZERO_VECTOR;

default
{
   state_entry()
   {
      string desc = llGetObjectDesc();
      list fields = llCSV2List(desc);

      if (llGetListLength(fields) == 2)
      {
         openPos = (vector)llList2Vector(fields, 0);
         closePos = (vector)llList2Vector(fields, 1);
      }

      llListen(CHANNEL, "", llGetOwner(), "");
   }

   on_rez()
   {
      llListen(CHANNEL, "", llGetOwner(), "");
   }

   listen(integer channel, string name, key id, string message)
   {
      if (message == SET_OPEN_CMD)
      {
         openPos = llGetLocalPos();
         llSetObjectDesc(llList2CSV([ openPos, closePos ]));
      } else if (message == SET_CLOSED_CMD)
      {
         closePos = llGetLocalPos();
         llSetObjectDesc(llList2CSV([ openPos, closePos ]));
      }
   }

   link_message(integer senderNum, integer newState, string str, key id)
   {
      if (newState == 0)
      {
         llSetPos(closePos);
      } else if (newState == 1)
      {
         llSetPos(openPos);
      }
   }
}

3.) Turn on 'Edit linked parts', put both the doors where you want them when they are closed and say:

4.) (With 'Edit linked parts' still on), put both the doors where you want them when they are open and say:

5.) Put this script in the parent prim (the frame/threshold):

integer currentState = 0;

default
{
   touch_start(integer numDetected)
   {
      if (numDetected % 2 == 0)
      {
         // An even number of people touched the door at the same time, so we
         // won't change it's state.  ;-)

         return;
      }

      currentState = 1 - currentState;
      llMessageLinked(LINK_ALL_CHILDREN, currentState, "", NULL_KEY);
   }
}

6.) Leave Edit mode, touch the doors a couple of times, and enjoy!

Forgot about this one. Yes, the sensor is not needed.

Hi Spike

If you want a door that will survive a building rez and move, check out:

http://secondlife.com/badgeo/wakka.php?wakka=LibraryTimelessLinkedDoor