--- /dev/null
+
+// huffware script: fade prim, by fred huffhines
+//
+// makes an object fade in and out of visibility.
+//
+// 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.
+//
+
+// constants...
+
+float OPACITY_MIN = 0.4; // the lowest value to allow the transparency to reach.
+float OPACITY_MAX = 1.0; // the highest value to allow the transparent
+ // if you set this above the max of 1.0, it keeps the object solid for longer.
+
+float TIMER_INTERVAL = 1.5; // how often do we adjust our appearance?
+
+// variables...
+
+float current_opacity = 0.42; // what is our current opacity?
+float current_adjustment = 0.2; // amount added/removed each time.
+
+//////////////
+// 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);
+}
+//
+//////////////
+
+//////////////
+// huffware script: auto-retire, by fred huffhines, version 2.4.
+// 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--) {
+//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 [];
+}
+//
+//////////////
+
+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();
+ llSetTimerEvent(TIMER_INTERVAL);
+ }
+
+ timer() {
+ llSetTimerEvent(0);
+ llSetLinkAlpha(LINK_SET, current_opacity, ALL_SIDES);
+ current_opacity += current_adjustment;
+ if (current_opacity < OPACITY_MIN) { current_opacity = OPACITY_MIN; current_adjustment *= -1.0; }
+ if (current_opacity > OPACITY_MAX) { current_opacity = OPACITY_MAX; current_adjustment *= -1.0; }
+ llSetTimerEvent(TIMER_INTERVAL);
+ }
+}
+