--- /dev/null
+
+// huffware script: texture shower, by fred huffhines.
+//
+// displays a texture from its inventory when the name is spoken in chat.
+//
+// this script is licensed by the GPL v3 which is documented at: http://www.gnu.org/licenses/gpl.html
+// do not use it in objects without fully realizing you are implicitly accepting that license.
+//
+
+
+// global constants...
+
+string SHOWER_SIGNATURE = "#texture_shower";
+ // the notecard must begin with this as its first line for it to be
+ // recognized as our configuration card.
+
+// global variables...
+
+string global_notecard_name; // name of our notecard in the object's inventory.
+integer response_code; // set to uniquely identify the notecard read in progress.
+list global_config_list; // a collection of configuration parameters from our notecard.
+integer global_config_index; // allows wrap-around feature, which we don't use here.
+
+list texture_names; // the set of textures we've got in inventory.
+
+integer LISTENING_CHANNEL = 1008;
+ // the default listening channel is hardly ever used; the channel should
+ // come from the notecard.
+
+//////////////
+
+// processes the variables that come from the notecard.
+parse_variable_definition(string to_parse)
+{
+ string content; // filled after finding a variable name.
+ if ( (content = get_variable_value(to_parse, "channel")) != "") {
+// log_it("channel=" + content);
+ LISTENING_CHANNEL = (integer)content;
+ }
+}
+
+//////////////
+
+// sets the viewing sides' textures to a particular inventory item.
+set_texture_to_item(string inv_tex)
+{
+ llSetTexture(inv_tex, 1);
+ llSetTexture(inv_tex, 3);
+}
+
+// sets our viewing sides back to the default texture.
+reset_textures()
+{
+ string tex_cur = llGetTexture(0);
+ set_texture_to_item(tex_cur);
+}
+
+// startup for the very early part of the object's lifetime.
+initialize_phase_1()
+{
+ // reset our relevant variables.
+ global_notecard_name = "";
+ global_config_list = [];
+ global_config_index = 0;
+ texture_names = [];
+
+ // request that the noteworthy library start looking for our notecard.
+ request_configuration();
+
+// log_it("started, free mem=" + (string)llGetFreeMemory());
+}
+
+// this gets us ready to enter our active state.
+initialize_phase_2()
+{
+ // listen for commands on the channel we're configured for.
+ llListen(LISTENING_CHANNEL, "", NULL_KEY, "");
+ // load all the texture names we know about.
+ integer texture_count = llGetInventoryNumber(INVENTORY_TEXTURE);
+ integer indy;
+ for (indy = 0; indy < texture_count; indy++)
+ texture_names += llGetInventoryName(INVENTORY_TEXTURE, indy);
+}
+
+manage_those_voices(integer channel, string message)
+{
+ if (channel != LISTENING_CHANNEL) return; // not for us.
+ if (message == "reset-texture") {
+ reset_textures();
+ return;
+ }
+ // wasn't a command to reset, so let's see if we know it.
+ integer texture_count = llGetListLength(texture_names);
+ integer indy;
+ for (indy = 0; indy < texture_count; indy++) {
+ integer posn = llListFindList(texture_names, (message));
+ if (posn >= 0) {
+ // found one...
+ set_texture_to_item(message);
+ return;
+ }
+ }
+}
+
+//////////////
+
+// this chunk largely comes from the example noteworthy usage...
+
+// requires noteworthy library v8.4 or better.
+//////////////
+// do not redefine these constants.
+integer NOTEWORTHY_HUFFWARE_ID = 10010;
+ // the unique id within the huffware system for the noteworthy script to
+ // accept commands on. this is used in llMessageLinked as the num parameter.
+string HUFFWARE_PARM_SEPARATOR = "{~~~}";
+ // this pattern is an uncommon thing to see in text, so we use it to separate
+ // our commands in link messages.
+string HUFFWARE_ITEM_SEPARATOR = "{|||}";
+ // used to separate lists of items from each other when stored inside a parameter.
+ // this allows lists to be passed as single string parameters if needed.
+integer REPLY_DISTANCE = 100008; // offset added to service's huffware id in reply IDs.
+// commands available via the noteworthy library:
+string READ_NOTECARD_COMMAND = "#read_note#";
+ // command used to tell the script to read notecards. needs a signature to find
+ // in the card as the first parameter, and a randomly generated response code for
+ // the second parameter. the response code is used to uniquely identify a set of
+ // pending notecard readings (hopefully). the signature can be empty or missing.
+ // the results will be fired back as the string value returned, which will have
+ // as first element the notecard's name (or "bad_notecard" if none was found) and
+ // as subsequent elements an embedded list that was read from the notecard. this
+ // necessarily limits the size of the notecards that we can read and return.
+//
+//////////////
+// joins a list of parameters using the parameter sentinel for the library.
+string wrap_parameters(list to_flatten)
+{ return llDumpList2String(to_flatten, HUFFWARE_PARM_SEPARATOR); }
+//////////////
+
+// this function fires off a request to the noteworthy library via a link message.
+// noteworthy will look for a notecard with our particular signature in it and
+// if it finds one, it will read the configuration therein. an empty string is
+// returned if noteworthy couldn't find anything.
+request_configuration()
+{
+ global_notecard_name = ""; // reset any previous card.
+ // try to find a notecard with our configuration.
+ response_code = -1 * (integer)randomize_within_range(23, 80000, FALSE);
+ string parms_sent = wrap_parameters([SHOWER_SIGNATURE, response_code]);
+ llMessageLinked(LINK_THIS, NOTEWORTHY_HUFFWARE_ID, READ_NOTECARD_COMMAND,
+ parms_sent);
+}
+
+// processes link messages received from the noteworthy library and others.
+// if the message indicates we should change states, then TRUE is returned.
+integer handle_link_message(integer which, integer num, string msg, key id)
+{
+ if (num != NOTEWORTHY_HUFFWARE_ID + REPLY_DISTANCE)
+ return FALSE; // not for us.
+ // process the result of reading the notecard.
+ list parms = llParseString2List(id, [HUFFWARE_PARM_SEPARATOR], []);
+ string notecard_name = llList2String(parms, 0);
+ integer response_for = llList2Integer(parms, 1);
+ if (response_for != response_code) return FALSE; // oops, this isn't for us.
+ if (notecard_name != "bad_notecard") {
+ // a valid notecard has been found.
+ global_notecard_name = notecard_name; // record its name for later use.
+ global_config_index = 0; // we are starting over in the config list.
+ // snag all but the first two elements for our config now.
+ global_config_list = llList2List(parms, 2, -1);
+ // and process the file as a set of definitions.
+ process_ini_config();
+ return TRUE;
+ } else {
+ // we hated the notecards we found, or there were none.
+ log_it("We apologize; there seem to be no notecards with a first line of '"
+ + SHOWER_SIGNATURE
+ + "'. We can't read any configuration until that situation improves.");
+ }
+ return FALSE;
+}
+
+//////////////
+// huffware script: auto-retire, by fred huffhines, version 2.5.
+// distributed under BSD-like license.
+// !! keep in mind that this code must be *copied* into another
+// !! script that you wish to add auto-retirement capability to.
+// when a script has auto_retire in it, it can be dropped into an
+// object and the most recent version of the script will destroy
+// all older versions.
+//
+// the version numbers are embedded into the script names themselves.
+// the notation for versions uses a letter 'v', followed by two numbers
+// in the form "major.minor".
+// major and minor versions are implicitly considered as a floating point
+// number that increases with each newer version of the script. thus,
+// "hazmap v0.1" might be the first script in the "hazmap" script continuum,
+// and "hazmap v3.2" is a more recent version.
+//
+// example usage of the auto-retirement script:
+// default {
+// state_entry() {
+// auto_retire(); // make sure newest addition is only version of script.
+// }
+// }
+// this script is partly based on the self-upgrading scripts from markov brodsky
+// and jippen faddoul.
+//////////////
+auto_retire() {
+ string self = llGetScriptName(); // the name of this script.
+ list split = compute_basename_and_version(self);
+ if (llGetListLength(split) != 2) return; // nothing to do for this script.
+ string basename = llList2String(split, 0); // script name with no version attached.
+ string version_string = llList2String(split, 1); // the version found.
+ integer posn;
+ // find any scripts that match the basename. they are variants of this script.
+ for (posn = llGetInventoryNumber(INVENTORY_SCRIPT) - 1; posn >= 0; posn--) {
+//log_it("invpo=" + (string)posn);
+ string curr_script = llGetInventoryName(INVENTORY_SCRIPT, posn);
+ if ( (curr_script != self) && (llSubStringIndex(curr_script, basename) == 0) ) {
+ // found a basic match at least.
+ list inv_split = compute_basename_and_version(curr_script);
+ if (llGetListLength(inv_split) == 2) {
+ // see if this script is more ancient.
+ string inv_version_string = llList2String(inv_split, 1); // the version found.
+ // must make sure that the retiring script is completely the identical basename;
+ // just matching in the front doesn't make it a relative.
+ if ( (llList2String(inv_split, 0) == basename)
+ && ((float)inv_version_string < (float)version_string) ) {
+ // remove script with same name from inventory that has inferior version.
+ llRemoveInventory(curr_script);
+ }
+ }
+ }
+ }
+}
+//
+// separates the base script name and version number. used by auto_retire.
+list compute_basename_and_version(string to_chop_up)
+{
+ // minimum script name is 2 characters plus a version.
+ integer space_v_posn;
+ // find the last useful space and 'v' combo.
+ for (space_v_posn = llStringLength(to_chop_up) - 3;
+ (space_v_posn >= 2) && (llGetSubString(to_chop_up, space_v_posn, space_v_posn + 1) != " v");
+ space_v_posn--) {
+ // look for space and v but do nothing else.
+//log_it("pos=" + (string)space_v_posn);
+ }
+ if (space_v_posn < 2) return []; // no space found.
+//log_it("space v@" + (string)space_v_posn);
+ // now we zoom through the stuff after our beloved v character and find any evil
+ // space characters, which are most likely from SL having found a duplicate item
+ // name and not so helpfully renamed it for us.
+ integer indy;
+ for (indy = llStringLength(to_chop_up) - 1; indy > space_v_posn; indy--) {
+//log_it("indy=" + (string)space_v_posn);
+ if (llGetSubString(to_chop_up, indy, indy) == " ") {
+ // found one; zap it. since we're going backwards we don't need to
+ // adjust the loop at all.
+ to_chop_up = llDeleteSubString(to_chop_up, indy, indy);
+//log_it("saw case of previously redundant item, aieee. flattened: " + to_chop_up);
+ }
+ }
+ string full_suffix = llGetSubString(to_chop_up, space_v_posn, -1);
+ // ditch the space character for our numerical check.
+ string chop_suffix = llGetSubString(full_suffix, 1, llStringLength(full_suffix) - 1);
+ // strip out a 'v' if there is one.
+ if (llGetSubString(chop_suffix, 0, 0) == "v")
+ chop_suffix = llGetSubString(chop_suffix, 1, llStringLength(chop_suffix) - 1);
+ // if valid floating point number and greater than zero, that works for our version.
+ string basename = to_chop_up; // script name with no version attached.
+ if ((float)chop_suffix > 0.0) {
+ // this is a big success right here.
+ basename = llGetSubString(to_chop_up, 0, -llStringLength(full_suffix) - 1);
+ return [ basename, chop_suffix ];
+ }
+ // seems like we found nothing useful.
+ return [];
+}
+//
+//////////////
+
+//////////////
+// from hufflets...
+//
+
+integer debug_num = 0;
+
+// a debugging output method. can be disabled entirely in one place.
+log_it(string to_say)
+{
+ debug_num++;
+ // tell this to the owner.
+ llOwnerSay(llGetScriptName() + "[" + (string)debug_num + "] " + to_say);
+ // say this on an unusual channel for chat if it's not intended for general public.
+// llSay(108, llGetScriptName() + "[" + (string)debug_num + "] " + to_say);
+ // say this on open chat that anyone can hear. we take off the bling for this one.
+// llSay(0, to_say);
+}
+
+// locates the string "text" in the list to "search_in".
+integer find_in_list(list search_in, string text)
+{
+ integer len = llGetListLength(search_in);
+ integer i;
+ for (i = 0; i < len; i++) {
+ if (llList2String(search_in, i) == text)
+ return i;
+ }
+ return -1;
+}
+
+// returns TRUE if the "prefix" string is the first part of "compare_with".
+integer is_prefix(string compare_with, string prefix)
+{ return (llSubStringIndex(compare_with, prefix) == 0); }
+
+// returns a number at most "maximum" and at least "minimum".
+// if "allow_negative" is TRUE, then the return may be positive or negative.
+float randomize_within_range(float minimum, float maximum, integer allow_negative)
+{
+ if (minimum > maximum) {
+ // flip the two if they are reversed.
+ float temp = minimum; minimum = maximum; maximum = temp;
+ }
+ float to_return = minimum + llFrand(maximum - minimum);
+ if (allow_negative) {
+ if (llFrand(1.0) < 0.5) to_return *= -1.0;
+ }
+ return to_return;
+}
+
+// strips the spaces off of the beginning and end of a string.
+string strip_spaces(string to_strip)
+{
+ // clean out initial spaces.
+ while (llGetSubString(to_strip, 0, 0) == " ")
+ to_strip = llDeleteSubString(to_strip, 0, 0);
+ // clean out ending spaces.
+ while (llGetSubString(to_strip, -1, -1) == " ")
+ to_strip = llDeleteSubString(to_strip, -1, -1);
+ return to_strip;
+}
+
+// parses a variable definition to find the name of the variable and its value.
+// this returns two strings [X, Y], if "to_split" is in the form X=Y.
+list separate_variable_definition(string to_split)
+{
+ integer equals_indy = llSubStringIndex(to_split, "=");
+ // we don't support missing an equals sign, and we don't support it as the first character.
+ if (equals_indy <= 0) return []; // no match.
+ string x = llGetSubString(to_split, 0, equals_indy - 1);
+ string y = llGetSubString(to_split, equals_indy + 1, -1);
+ to_split = ""; // save space.
+ return [ strip_spaces(x), strip_spaces(y) ];
+}
+
+// returns a non-empty string if "to_check" defines a value for "variable_name".
+// this must be in the form "X=Y", where X is the variable_name and Y is the value.
+string get_variable_value(string to_check, string variable_name)
+{
+ list x_y = separate_variable_definition(to_check);
+ if (llGetListLength(x_y) != 2) return ""; // failure to parse a variable def at all.
+ if (!is_prefix(llList2String(x_y, 0), variable_name)) return ""; // no match.
+ return llList2String(x_y, 1); // a match!
+}
+
+// examines all entries that we got from the notecard to see if any contain definitions.
+// this is basically an INI file reader, but it uses a list instead of a file.
+// ini files provide a format with multiple sections of config information, like so:
+// [section_1]
+// name1=value1
+// name2=value2 ...etc...
+// [section_2]
+// name1=value1 ...etc...
+process_ini_config()
+{
+// log_it("scanning notecard for variable definitions...");
+ integer indy;
+ integer count = llGetListLength(global_config_list);
+
+ // iterate across the items in our configuration to look for ones that are not done yet.
+ for (indy = global_config_index; indy < count; indy++) {
+ string line = llList2String(global_config_list, indy);
+ // search for a section beginning.
+ if (llGetSubString(line, 0, 0) == "[") {
+ // we found the start of a section name. now read the contents.
+ indy++; // skip section line.
+ log_it("reading section: " + llGetSubString(line, 1, -2));
+ }
+ integer sec_indy;
+ for (sec_indy = indy; sec_indy < count; sec_indy++) {
+ // read the lines in the section.
+ line = llList2String(global_config_list, sec_indy);
+ if (llGetSubString(line, 0, 0) != "[") {
+ // try to interpret this line as a variable setting. this is just
+ // one example of a way to handle the config file; one might instead
+ // want to do something below once a whole section is read.
+ parse_variable_definition(line);
+ } else {
+ // we're at the beginning of a new section now, so start processing its
+ // configuration in the outer loop.
+ indy = sec_indy - 1; // set indy to proper beginning of section.
+ global_config_index = indy; // remember where we had read to.
+ sec_indy = count + 3; // skip remainder of inner loop.
+ }
+ }
+ }
+
+ global_config_index = 0; // reset outer position if want to re-read.
+}
+
+// locates the item with "name_to_find" in the inventory items with the "type".
+// a value from 0 to N-1 is returned if it's found, where N is the number of
+// items in the inventory.
+integer find_in_inventory(string name_to_find, integer inv_type)
+{
+ integer num_inv = llGetInventoryNumber(inv_type);
+ if (num_inv == 0) return -1; // nothing there!
+ integer inv;
+ for (inv = 0; inv < num_inv; inv++) {
+ if (llGetInventoryName(inv_type, inv) == name_to_find)
+ return inv;
+ }
+ return -2; // failed to find it.
+}
+// end hufflets
+//////////////
+
+default {
+ state_entry() { if (llSubStringIndex(llGetObjectName(), "huffotronic") < 0) state real_default; }
+ on_rez(integer parm) { state rerun; }
+}
+state rerun { state_entry() { state default; } }
+
+state real_default
+{
+ state_entry() {
+ auto_retire(); // make sure newest addition is only version of script.
+ initialize_phase_1();
+ }
+
+ on_rez(integer param) { state rerun; }
+
+ // reset when we see changes to our notecard configuration.
+ changed(integer change) {
+ if (change & CHANGED_INVENTORY) {
+ llSleep(3.14159265358); // delay to avoid interfering with upgrade.
+ state rerun;
+ }
+ }
+
+ // process the response from the noteworthy library.
+ link_message(integer which, integer num, string msg, key id) {
+ integer retval = handle_link_message(which, num, msg, id);
+ if (retval) state configured; // skip states if we were asked to.
+ }
+}
+
+state configured
+{
+ state_entry() {
+ initialize_phase_2();
+ }
+
+ listen(integer channel, string name, key id, string message) {
+ manage_those_voices(channel, message);
+ }
+
+ link_message(integer which, integer num, string msg, key id) {
+ manage_those_voices(num, msg);
+ }
+
+ // reset when we see changes to our notecard configuration.
+ changed(integer change) {
+ if (change & CHANGED_INVENTORY) {
+ llSleep(3.14159265358); // delay to avoid interfering with upgrade.
+ state default;
+ }
+ }
+}
projects / feisty_meow.git / blobdiff