--- /dev/null
+
+// huffware script: timed expiration, by fred huffhines.
+//
+// this ensures that an object only lives a set amount of time before de-rezzing.
+//
+// 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.
+//
+
+float PRODUCT_LIFETIME = 0.9; // time allowed before the object terminates, in minutes.
+ // since we now make the object temporary, this has to be less than a minute
+ // for our own dying scene to take place. otherwise the object just disappears.
+
+float EXPIRY_VOLUME = 0.25;
+ // we have found that this volume level is generally good, since you don't want
+ // the object screaming like crazy as it evaporates.
+
+
+//////////////
+// huffware script: auto-retire, by fred huffhines, version 1.9.
+// distributed under BSD-like license.
+// partly based on the self-upgrading scripts from markov brodsky and jippen faddoul.
+// the function auto_retire() should be added *inside* a version numbered script that
+// you wish to give the capability of self-upgrading.
+// this script supports a notation for versions embedded in script names where a 'v'
+// is followed by a number in the form "major.minor", e.g. "grunkle script by ted v8.2".
+// when the containing script is dropped into an object with a different version, the
+// most recent version eats any existing ones.
+// keep in mind that this code must be *copied* into your script you wish to add
+// auto-retirement capability to.
+//
+// example usage of the auto-retirement script:
+//
+// default {
+// state_entry() {
+// auto_retire(); // make sure newest addition is only version of script.
+// }
+// }
+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--) {
+ 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.
+ if ((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)
+{
+ if (llSubStringIndex(to_chop_up, " ") < 0) return []; // no space found, not a valid name to work on.
+
+ string basename = to_chop_up; // script name with no version attached.
+
+ integer posn;
+ // minimum script name is 2 characters plus version.
+ for (posn = llStringLength(to_chop_up) - 1;
+ (posn >= 2) && (llGetSubString(to_chop_up, posn, posn) != " ");
+ posn--) {
+ // find the space. do nothing else.
+ }
+ if (posn < 2) return []; // no space found.
+ string full_suffix = llGetSubString(to_chop_up, 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.
+ 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 [];
+}
+//
+//////////////
+
+// how many times the timer is hit per minute.
+float TICKS_PER_MINUTE = 20.0;
+
+float ticks_to_live; // how long this particular object has left.
+
+show_time_left()
+{
+// integer secs_left = (integer)(60.0 * ticks_to_live / TICKS_PER_MINUTE);
+// llWhisper(14, (string)secs_left + " seconds before expiration.");
+}
+
+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() {
+ llParticleSystem([]); // kill any old particles running.
+ auto_retire();
+//llWhisper(0, "starting up " + llGetObjectName());
+ ticks_to_live = PRODUCT_LIFETIME * TICKS_PER_MINUTE;
+ llSetTimerEvent(60.0 / TICKS_PER_MINUTE); // check avatar's state periodically.
+ // make sure this is a temporary object.
+ llSetPrimitiveParams([PRIM_TEMP_ON_REZ, TRUE]);
+ show_time_left();
+ }
+
+ timer() {
+ // make sure we don't wait too long to reset our temporariness.
+ integer time_now = llGetUnixTime();
+ // check whether we should stay alive or not.
+ if (--ticks_to_live <= 0.0) {
+// llWhisper(0, llGetObjectName() + " is terminating now.");
+ string first_sound = llGetInventoryName(INVENTORY_SOUND, 0);
+ if (first_sound != "")
+ llTriggerSound(first_sound, EXPIRY_VOLUME);
+ string first_pic = llGetInventoryName(INVENTORY_TEXTURE, 0);
+ if (first_pic != "")
+ llMakeExplosion(20, 1.0, 5, 3.0, 1.0, first_pic, ZERO_VECTOR);
+ llDie();
+ // resetting this since if we're here, we don't want to keep blowing up.
+ ticks_to_live = PRODUCT_LIFETIME * TICKS_PER_MINUTE;
+ } else {
+ show_time_left();
+ }
+ }
+
+ on_rez(integer param) {
+ // make sure we start over when this is a new object.
+ llResetScript();
+ }
+
+ touch_start(integer total_number)
+ {
+ ticks_to_live += TICKS_PER_MINUTE; // add a minute to its life.
+// llWhisper(0, "Object gets another minute to live.");
+ }
+
+}
projects / feisty_meow.git / blobdiff