3D Radar

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Revision as of 02:57, 8 September 2014 by Omei Qunhua (talk | contribs) (Re-instate the object re-name. This does have a purpose. It obviates manually renaming "object" to "scan ball", as the comments said.)
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Scripts have been corrected and working properly now

Rezzes a ball for each avatar in range. Each ball tracks it's on AV and displays distance.

Scanner/Rezzer Script

Place this script in a prim along with the scan ball. When touched it will scan the surrounding area and rezz a ball for each avatar.

Suggestion: Create a sphere with a diameter of 2 meters. Set transparency about 60. Create another sphere about 0.05 diameter, color a dark color and put it in the center of the large prim. Select small prim 1st and then large prim and link them. This will give you a center point to reference. The scan ball script is set to scan for it's avatar to a range of 96 meters.

This formula: vector avDivPos = (avPos - rPos) * 0.010417; Takes the (avatars position - position of scanner) & multiplies by (radius of the distance you want the balls to go(2 meter sphere = 1 meter radius)/scan range(96meters)):

1/96 = approximately 0.010417.

<lsl> ////////////////////////////////////////////////////////////////////////////////////////////////////// // 3D Radar 2.5 // "Oct 15 2008", "18:43:28" // Creator: Jesse Barnett // Released into the Public Domain //////////////////////////////////////////////////////////////////////////////////////////////////////

integer Scan = TRUE; string avKey; integer list_pos; list key_list; integer key_chan; //Key channel is generated randomly and passed to the scan ball integer die_chan = -9423753; //Hey pick your own channels and be sure to paste them into the scan balls too! integer key_rem_chan = -49222879;

default {

   touch_start(integer total_number) 
   {
       if (Scan) 
       {
           llSensorRepeat("", "", AGENT, 96, PI, 1);
           key_list =[];
           llListen(key_rem_chan, "", "", "");
           llOwnerSay("on");
           Scan = FALSE;
       }
       else 
       {
           llSensorRemove();
           llRegionSay(die_chan, "die");
           llOwnerSay("off");
           Scan = TRUE;
       }
   }

   sensor(integer iNum) 
   {
       integer p = 0;
       for (p = 0; p < iNum; ++p) 
       {
           avKey = llDetectedKey(p);
           list_pos = llListFindList(key_list, (list)avKey);
           if (list_pos == -1) 
           {
               key_list += (list) avKey;
               key_chan = (integer) llFrand(-1000000) - 1000000;
               llRezObject("scan ball", llGetPos(), ZERO_VECTOR, ZERO_ROTATION, key_chan);
               llSleep(.25);
               llRegionSay(key_chan, avKey);
           }
       }
   }

   listen(integer c, string name, key id, string msg) 
   {
       integer r = llListFindList(key_list,[(key)msg]);
       key_list = llDeleteSubList(key_list, r, r);
   }

} </lsl>

Scan Ball Script

Place this script in a prim and then place the prim into the inventory of the Scanner/Rezzer. It will automatically name itself.

Suggestion; Create a sphere prim of 0.05 diameter with glow set about .80. <lsl> ////////////////////////////////////////////////////////////////////////////////////////////////////// // 3D Radar 2.5 // "Oct 15 2008", "18:44:36" // Creator: Jesse Barnett // Released into the Public Domain //////////////////////////////////////////////////////////////////////////////////////////////////////

string avName; integer avDistance; key avKey; integer avListen; integer key_chan; integer die_chan = -9423753; integer key_rem_chan = -49222879; vector avPos; vector rPos; key owner;

default {

   state_entry()
   {
       llSetObjectName("scan ball"); //Renames the object to "scan ball"
       owner = llGetOwner(); // Lets check to see what the key of the owner of the object is and save it for later
   }
   on_rez(integer start_param)
   {
       rPos = llGetPos();
       key_chan = start_param;
       llListen(die_chan, "", "", "");
       avListen = llListen(key_chan, "", "", "");
   }
   listen(integer c, string n, key id, string msg)
   {
       if (c == die_chan && msg == "die" && owner == llDetectedOwner(0)) //Lets check to see if the message we heard matches all the criteria for the kill command
       {                                                                 //(Right channel, right message and from radar owned by same owner)
           llDie();
       }
       
       else
       {
           avKey = (key) msg;
           avName = llKey2Name(avKey);
           llSensorRepeat("", avKey, AGENT, 96, PI, 1.0);
           llListenRemove(avListen);
       }
   }
   
   sensor(integer n)
   {
       avPos = llDetectedPos(0);
       vector avDivPos = (avPos - rPos) / (96 / 1);    //Scan range/Radius of large sphere
       avDistance = (integer) llVecDist(rPos, llDetectedPos(0));
       llSetPos(rPos + avDivPos);
       llSetText(avName + "[" + (string) avDistance + "]", <1, 1, 1 >, 1);
   }
   
   no_sensor()
   {
       llRegionSay(key_rem_chan, avKey);
       llDie();
   }

} </lsl>