2 // huffware script: radio tuner, by fred huffhines
4 // a radio tuner with capability for overriding the channel.
5 // this is useful if you want it to stay tuned on a particular channel.
7 // this script is licensed by the GPL v3 which is documented at: http://www.gnu.org/licenses/gpl.html
8 // do not use it in objects without fully realizing you are implicitly accepting that license.
11 integer force_channel = 0; // set to non-zero to force the channel to stay set.
12 integer channel_stays_on = 69; // the channel that the radio will stay stuck on when forced.
14 integer listen_handle = 0;
17 //hmmm: really broken implementation.
18 // need to support multiple channels.
19 set_radio_channel(integer chan)
24 llListenRemove(listen_handle);
29 llOwnerSay("Radio turned off.");
33 listen_handle = llListen(chan, "", NULL_KEY, "");
34 llOwnerSay("Listening to channel " + (string)chan);
38 // huffware script: auto-retire, by fred huffhines, version 2.5.
39 // distributed under BSD-like license.
40 // !! keep in mind that this code must be *copied* into another
41 // !! script that you wish to add auto-retirement capability to.
42 // when a script has auto_retire in it, it can be dropped into an
43 // object and the most recent version of the script will destroy
44 // all older versions.
46 // the version numbers are embedded into the script names themselves.
47 // the notation for versions uses a letter 'v', followed by two numbers
48 // in the form "major.minor".
49 // major and minor versions are implicitly considered as a floating point
50 // number that increases with each newer version of the script. thus,
51 // "hazmap v0.1" might be the first script in the "hazmap" script continuum,
52 // and "hazmap v3.2" is a more recent version.
54 // example usage of the auto-retirement script:
57 // auto_retire(); // make sure newest addition is only version of script.
60 // this script is partly based on the self-upgrading scripts from markov brodsky
61 // and jippen faddoul.
64 string self = llGetScriptName(); // the name of this script.
65 list split = compute_basename_and_version(self);
66 if (llGetListLength(split) != 2) return; // nothing to do for this script.
67 string basename = llList2String(split, 0); // script name with no version attached.
68 string version_string = llList2String(split, 1); // the version found.
70 // find any scripts that match the basename. they are variants of this script.
71 for (posn = llGetInventoryNumber(INVENTORY_SCRIPT) - 1; posn >= 0; posn--) {
72 //log_it("invpo=" + (string)posn);
73 string curr_script = llGetInventoryName(INVENTORY_SCRIPT, posn);
74 if ( (curr_script != self) && (llSubStringIndex(curr_script, basename) == 0) ) {
75 // found a basic match at least.
76 list inv_split = compute_basename_and_version(curr_script);
77 if (llGetListLength(inv_split) == 2) {
78 // see if this script is more ancient.
79 string inv_version_string = llList2String(inv_split, 1); // the version found.
80 // must make sure that the retiring script is completely the identical basename;
81 // just matching in the front doesn't make it a relative.
82 if ( (llList2String(inv_split, 0) == basename)
83 && ((float)inv_version_string < (float)version_string) ) {
84 // remove script with same name from inventory that has inferior version.
85 llRemoveInventory(curr_script);
92 // separates the base script name and version number. used by auto_retire.
93 list compute_basename_and_version(string to_chop_up)
95 // minimum script name is 2 characters plus a version.
97 // find the last useful space and 'v' combo.
98 for (space_v_posn = llStringLength(to_chop_up) - 3;
99 (space_v_posn >= 2) && (llGetSubString(to_chop_up, space_v_posn, space_v_posn + 1) != " v");
101 // look for space and v but do nothing else.
102 //log_it("pos=" + (string)space_v_posn);
104 if (space_v_posn < 2) return []; // no space found.
105 //log_it("space v@" + (string)space_v_posn);
106 // now we zoom through the stuff after our beloved v character and find any evil
107 // space characters, which are most likely from SL having found a duplicate item
108 // name and not so helpfully renamed it for us.
110 for (indy = llStringLength(to_chop_up) - 1; indy > space_v_posn; indy--) {
111 //log_it("indy=" + (string)space_v_posn);
112 if (llGetSubString(to_chop_up, indy, indy) == " ") {
113 // found one; zap it. since we're going backwards we don't need to
114 // adjust the loop at all.
115 to_chop_up = llDeleteSubString(to_chop_up, indy, indy);
116 //log_it("saw case of previously redundant item, aieee. flattened: " + to_chop_up);
119 string full_suffix = llGetSubString(to_chop_up, space_v_posn, -1);
120 // ditch the space character for our numerical check.
121 string chop_suffix = llGetSubString(full_suffix, 1, llStringLength(full_suffix) - 1);
122 // strip out a 'v' if there is one.
123 if (llGetSubString(chop_suffix, 0, 0) == "v")
124 chop_suffix = llGetSubString(chop_suffix, 1, llStringLength(chop_suffix) - 1);
125 // if valid floating point number and greater than zero, that works for our version.
126 string basename = to_chop_up; // script name with no version attached.
127 if ((float)chop_suffix > 0.0) {
128 // this is a big success right here.
129 basename = llGetSubString(to_chop_up, 0, -llStringLength(full_suffix) - 1);
130 return [ basename, chop_suffix ];
132 // seems like we found nothing useful.
140 state_entry() { if (llSubStringIndex(llGetObjectName(), "huffotronic") < 0) state real_default; }
141 on_rez(integer parm) { state rerun; }
143 state rerun { state_entry() { state default; } }
150 //hmmm: logic broken here. subscribe to a default set. let them add and remove from set.
151 if (!force_channel) {
152 //hmmm: terrible defaults treatment.
153 llListen(96, "", llGetOwner(), "");
154 llOwnerSay("Type \"/96 tune N\" to tune in to channel N, or \"/96 tune 0\" to turn radio off.");
156 llOwnerSay("Channel locked on " + (string)channel_stays_on + ".");
157 set_radio_channel(channel_stays_on);
163 if (attached != NULL_KEY)
167 listen(integer ch, string name, key id, string msg)
169 if (!force_channel && ((ch == 96) && llGetSubString(msg, 0, 4) == "tune ") )
170 set_radio_channel((integer)llGetSubString(msg, 5, -1));
171 else if (ch == channel)
172 llOwnerSay("[" + (string)ch + " " + name + "]: " + msg);