--- /dev/null
+
+// huffware script: huff-search brainiac, by fred huffhines
+//
+// this script is one portion of a search system. it is the brain for an object
+// that can find nearby objects by a partial name match. this script should be
+// located in the root primitive. it also requires an up-to-date jaunting library
+// in the same primitive. see the (hopefully) enclosed documentation for more details.
+// more implementation notes are stored at the back of the file.
+//
+// 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 settings that can be very useful to change...
+
+integer MAX_MATCHES = 17;
+ // by default we try to match one object per rod so we can point at them.
+
+float MAX_SPIRAL_RADIUS = 72.0;
+ // the farthest that the object will travel from its home while searching.
+ // this is an important factor in the searchbert's range of vision; the other is
+ // the sensor range, below.
+ // ensure that it has access to the lands within this range or it might get stuck.
+ // you can also set the TRAVERSE_LANDS flag to false to make for safer searches when
+ // surrounded by a lot of banned lands.
+
+float SENSOR_MAX_RANGE = 96.0;
+ // the maximum range that we try to sense objects at. this is distinct from the spiral
+ // radius because often the range of movement is constrained by land conditions, where
+ // one might still want a large sensor radius to see as many things as possible in range.
+ // note though that searches will keep matching the things nearest to them if neither
+ // the position nor the angle nor object positions have changed.
+
+float SPIRAL_LOOPS = 7;
+ // how many loops there are in the spiral. this is measured by how many times the
+ // spiral cuts across the positive x-axis (that is, the zero angle vector) from
+ // the center of the spiral to the radius (that is, from <0, 0, 0> to <radius, 0, 0>).
+
+integer TOTAL_STEPS = 42;
+ // how many positions within the spiral will the object travel to? the first step
+ // is step 0, which is the center of the spiral. positions 1 through TOTAL_STEPS
+ // spiral outward from the zero position, where the distance from the center at
+ // TOTAL_STEPS should be MAX_SPIRAL_RADIUS or less.
+
+integer MAX_SPIRAL_TRAVERSALS = 1;
+ // how many different spirals are we allowed for the same search? this will let the
+ // search engine cover more ground than with just one spiral, to allow different
+ // objects to be exposed.
+
+integer HUFF_SEARCH_CHAT_CHANNEL = 0;
+ // the channel where the object listens for commands. the default is to use open
+ // chat for this, but some people may want it more specific.
+
+// this flag is important to keep as false for wright plaza and other areas with script traps
+// (where the perms allow objects to enter, but then their scripts are stopped dead).
+integer TRAVERSE_LANDS = FALSE;
+ // if this is false, then the searchbert will stick to the land owner's land where it started.
+ // but if it's true, then searchbert will cross into other people's lands too, but if there
+ // are some weird border or permission conditions about object re-entry or scripts being able
+ // to run, that can be quite problematic.
+
+integer TRAVELLING_UPWARDS = FALSE;
+ // if this is true, the searchbert will climb in the vertical direction also.
+
+float MAX_UPWARDS_DISTANCE = 30.0;
+ // the farthest away that the searchbert will fly during an upwards search.
+
+float SEARCH_ROD_ANGULAR_SWEEP = PI_BY_TWO;
+ // angular arc of the sensor cone, placeholder.
+
+//////////////
+
+// constants that are not configurable in a notecard...
+
+integer DEBUGGING = FALSE; // set to true to make the script noisier.
+
+//////////////
+
+// global constants that aren't as useful to change...
+
+float MINIMUM_HEIGHT_ABOVE_GROUND = 0.14;
+ // the closest we allow the searcher to get to the ground. any lower and our search
+ // rods might be dragging around under ground.
+
+float FAST_TIMER_INTERVAL = 0.12;
+ // the time between jumps when we're doing our search spiral. this is the fastest
+ // the object can spin around its spiral trajectory, but it's more limited than by
+ // just this number; llSetPrimitiveParams is used for jaunting and it has a delay of
+ // 0.2 seconds built into it.
+
+integer NORMAL_TIMER_INTERVAL = 14;
+ // how frequently we check for things to do, in seconds.
+
+float STARTUP_TIME_ALLOWED = 50.0; // number of seconds before declaring a timeout.
+
+integer MAX_STEP_SNOOZES = 81;
+ // number of timer hits to allow before giving up on jaunt.
+
+float SNOOZE_BEFORE_RESET = 300;
+ // number of seconds before a scan will automatically reset. hopefully this is
+ // enough time for the user to follow the trail to the detected object.
+
+// imported interfaces below...
+
+// huff-search pointer API:
+//////////////
+// do not redefine these constants.
+integer HUFF_SEARCH_POINTER_HUFFWARE_ID = 10032;
+ // the unique id within the huffware system for this script.
+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.
+//////////////
+string HUFF_SEARCH_RESET = "#reset#";
+ // returns the script to its starting state.
+string HUFF_SEARCH_POINT_PARTY = "#point_particles#";
+ // aim at an object and show a particle stream leading to it.
+string HUFF_SEARCH_JUST_POINT = "#just_point#";
+ // aim at an object, but don't do any particles.
+string HUFF_SEARCH_SENSEI = "#sensor#";
+ // set up a sensor request for a search pattern. pings will cause
+ // the pattern to be sought in names of nearby objects. the parameters are:
+ // (1) the maximum range for the sensor, (2) the arc angle to use in sensing,
+ // (3) the search pattern to look for in object names, (4) the maximum number
+ // of matches to look for.
+string HUFF_SEARCH_STOP_SENSE = "#stop_sensor#";
+ // turn off the sensor but don't totally reset.
+string HUFF_SEARCH_PING = "#ping#";
+ // cause the searcher to actively sensor ping the targets.
+string HUFF_SEARCH_MATCH_EVENT = "#match#";
+ // fired at the root prim when matches are found for the search term.
+ // the payload is a list of matched item pairs [item key, location].
+//////////////
+
+// the armature button pushing API.
+// (we have subclassed the simple button pushing API for searchbert armature.)
+//////////////
+integer BUTTON_PUSHER_HUFFWARE_ID = 10029;
+ // a unique ID within the huffware system for this script.
+//////////////
+string BUTTON_PUSHED_ALERT = "#btnp";
+ // this event is generated when the button is pushed. the number parameter will be
+ // the huffware id plus the reply distance. the id parameter in the link message will
+ // contain the name of the button that was pushed.
+//////////////
+string CHECK_ARMS_BUTTON_NAME = "^checkarms";
+ // this is the signal given to the armature script that it should check the
+ // number of arms present on searchbert. if the number is fine, it will
+ // push the arms are good button back at the brainiac (using the button
+ // push api plus reply distance).
+string ARMS_ARE_GOOD_BUTTON_NAME = "^goodarmz";
+ // the event sent back by the searchbert armature when all arms are ready
+ // to go.
+string PROBLEM_WITH_MY_THUMBS_BUTTON_NAME = "^ouch";
+ // a problem was noticed with the number of arms and we could not fix it.
+ // the brain needs to try reconfiguring again.
+//////////////
+
+// searchbert menus API.
+//////////////
+// do not redefine these constants.
+integer SEARCHBERT_MENUS_HUFFWARE_ID = 10034;
+ // the unique id within the huffware system for this script.
+//////////////
+string SM_CONFIGURE_INFO = "#sm-info#";
+ // sets important information this script will use, such as (1) the channel for listening.
+string SM_POP_MAIN_MENU_UP = "#sm-main#";
+ // causes the main menu to be displayed. this requires an avatar name and avatar key for the
+ // target of the menu.
+//////////////
+string SM_EVENT_MENU_CLICK = "#sm-clik#";
+ // the user has requested a particular menu item that this script cannot fulfill. the
+ // event is generated back to the client of this script for handling. it will include (1) the
+ // menu name in question, (2) the item clicked, (3) the avatar name, and (4) the avatar key.
+//////////////
+
+// card configurator link message API:
+//////////////
+// do not redefine these constants.
+integer CARD_CONFIGURATOR_HUFFWARE_ID = 10042;
+ // the unique id within the huffware system for the card configurator script to
+ // accept commands on. this is used in llMessageLinked as the num parameter.
+//////////////
+string BAD_NOTECARD_TEXT = "*badcrd*";
+ // the sign that we hated the notecards we found, or there were none.
+string FINISHED_READING_NOTECARDS = "**finished**";
+ // the sign that we are done plowing through the card we found.
+string BEGIN_READING_NOTECARD_COMMAND = "#read-cfg#";
+ // requests that the configurator find a good notecard and read its contents.
+ // it should send the contents via the alert below. first parm is the signature and
+ // second is the wrapped list of valid item prefixes.
+string READ_PARTICULAR_NOTECARD_COMMAND = "#read-note#";
+ // requests that the configurator find a good notecard and read its contents.
+ // it should send the contents via the alert below. first two parms are the same as
+ // begin reading notecard, and the third parameter is the name of the specific notecard.
+string CARD_CONFIG_RECEIVED_ALERT = "#cfg-event-upd#";
+ // this message is sent when the configurator has found some data updates or has finished
+ // reading the configuration file.
+//////////////
+
+// jaunting library API:
+//////////////
+// do not redefine these constants.
+integer JAUNT_HUFFWARE_ID = 10008;
+ // the unique id within the huffware system for the jaunt script to
+ // accept commands on. this is used in llMessageLinked as the num parameter.
+//////////////
+// commands available via the jaunting library:
+string JAUNT_COMMAND = "#jaunt#";
+ // command used to tell jaunt script to move object. pass a vector with the location.
+//string FULL_STOP_COMMAND = "#fullstop#";
+ // command used to bring object to a halt.
+//string REVERSE_VELOCITY_COMMAND = "#reverse#";
+ // makes the object reverse its velocity and travel back from whence it came.
+//string SET_VELOCITY_COMMAND = "#setvelocity#";
+ // makes the velocity equal to the vector passed as the first parameter.
+//string JAUNT_UP_COMMAND = "#jauntup#";
+//string JAUNT_DOWN_COMMAND = "#jauntdown#";
+ // commands for height adjustment. pass a float for number of meters to move.
+//string JAUNT_LIST_COMMAND = "#jauntlist#";
+ // like regular jaunt, but expects a string in jaunt notecard format with vectors.
+ // the second parameter, if any, should be 1 for forwards traversal and 0 for backwards.
+//
+//////////////
+
+// global variables used in the script.
+
+// configuration variables...
+integer all_setup_finished = FALSE; // have we read our configuration yet?
+integer configuration_pending = FALSE; // true if the setup process (config and arms) is still going on.
+integer listening_handle = 0; // tracks our handle for listening to commands.
+
+// matching variables...
+string global_target_name = ""; // the name of the object being sought.
+
+list global_matches_found; // a list of keys that match the specified search terms.
+list global_positions_found; // matches list of positions for the detected objects.
+
+// jaunting variables...
+
+vector global_home_posn; // the location where the search bot is located.
+vector last_safe_target; // the last place we jaunted to that was safe.
+
+integer next_step_snoozes_left; // pauses allowed before deciding jaunt will not respond.
+
+integer jaunt_responses_awaited = 0; // true when a jaunt is pending.
+integer last_jaunt_was_success = FALSE; // result of jaunting received by message.
+
+vector current_rotation = <0.0, 0.0, 0.0>;
+ // the current rotation around each axis for object.
+
+// spiral variables...
+
+integer global_current_step = 0; // the current position in the search spiral.
+float spiral_start_angle = 0.0; // how many radians to offset spiral by for this pass.
+integer global_current_pass = 0; // which spiral number are we working on?
+
+integer tried_jump_homeward = FALSE;
+ // when retracing to home, this records if we already tried the jump home that should
+ // come in between the spiral jaunt.
+
+integer retracing_steps = FALSE;
+ // this is true when we are trying to get back home after finishing our spirals.
+
+// object maintenance variables...
+
+integer reset_for_next_timer = FALSE; // true when next timer hit should do a reset.
+
+integer running_a_search = FALSE; // true if the object is seeking matches.
+
+//////////////
+
+// constants that should not be messed with.
+
+float MAX_SLACK_DISTANCE = 0.01; // how close we need to be to a target.
+
+integer ALL_SEEKER_ALERT = -1; // communicates with all search rods.
+
+integer last_time_ordered_stop_sensing = 0;
+ // tracks when we last tried to order the search rods to stop sensing matches.
+
+// jaunting variables...
+
+vector last_jaunt_target;
+ // where we're currently headed. this variable is mostly for record keeping, so we want
+ // to update it whenever we jaunt someplace.
+
+//////////////
+
+// main functions for getting work done as the searchbert...
+
+// pointing that doesn't use particles, but just aims a search rod.
+aim_at_position(integer which_seeker, vector targetPosition) {
+ list paramList = [targetPosition];
+ request_from_seeker(which_seeker, llDumpList2String(paramList,
+ HUFFWARE_PARM_SEPARATOR), HUFF_SEARCH_JUST_POINT);
+}
+
+// tells the rod at "which_seeker" link to do a sensor scan.
+start_sensing(integer which_seeker, float max_range, float arc_angle, string search_pattern,
+ integer matches_sought)
+{
+ list paramList = [max_range, arc_angle, search_pattern, matches_sought];
+ request_from_seeker(which_seeker, llDumpList2String(paramList,
+ HUFFWARE_PARM_SEPARATOR), HUFF_SEARCH_SENSEI);
+}
+
+// tells all of the seeker search rods to stop sensing matches.
+stop_sensing()
+{
+ // make sure that we are not just blasting this order over and over.
+ if (llGetUnixTime() != last_time_ordered_stop_sensing) {
+ last_time_ordered_stop_sensing = llGetUnixTime();
+ request_from_seeker(ALL_SEEKER_ALERT, "", HUFF_SEARCH_STOP_SENSE);
+ }
+}
+
+// tell the seeker arms to find what we asked them about.
+request_ping() { request_from_seeker(ALL_SEEKER_ALERT, "", HUFF_SEARCH_PING); }
+
+//////////////
+
+// teleports to the vector specified. this invokes a method in the jaunting library
+// which will return its result asynchronously. thus we can't just expect that we
+// have arrived at the target by the end of this function; we need to get back the
+// IPC message in linked_message.
+jaunt_to_target(vector target)
+{
+ if (!TRAVERSE_LANDS) {
+ // this is an important restriction since we don't want to get trapped in weird
+ // land perm screwups, like not being able to re-enter the land where we started,
+ // if that parcel option is set.
+ if (llGetLandOwnerAt(llGetPos()) != llGetLandOwnerAt(target)) {
+ return;
+ }
+ }
+
+ // reset our snoozer count, since we're doing a new jaunt now.
+ next_step_snoozes_left += MAX_STEP_SNOOZES;
+ jaunt_responses_awaited++;
+ // record the current target.
+ last_jaunt_target = target;
+
+ float minimum_rod_angle_addition = 0.2;
+ float maximum_rod_angle_addition = 10.8;
+ // add small random amounts to the current rotation to expose more matches.
+ current_rotation +=
+ <(minimum_rod_angle_addition + llFrand(maximum_rod_angle_addition)) * DEG_TO_RAD,
+ (minimum_rod_angle_addition + llFrand(maximum_rod_angle_addition)) * DEG_TO_RAD,
+ (minimum_rod_angle_addition + llFrand(maximum_rod_angle_addition)) * DEG_TO_RAD>;
+ rotation new_rot = llEuler2Rot(current_rotation);
+// log_it("new rot to " + (string)new_rot + " based on " + (string)current_rotation);
+ llMessageLinked(LINK_THIS, JAUNT_HUFFWARE_ID, JAUNT_COMMAND,
+ (string)target + HUFFWARE_PARM_SEPARATOR + (string)new_rot);
+}
+
+// provides the position on a spiral that has "loops" total loops (counted by
+// how many times a line from the center to the outer "radius" is crossed).
+// this provides an x and y offset from 0,0 for where the spiral should be if
+// one were to walk it in "total_steps" (where the center is step 0). this is
+// given for the current "step" one is at. the "start_angle" is the number of
+// radians to start at for the spiral, to allow different areas to be traversed.
+vector trace_spiral(float loops, float radius, integer total_steps, integer step,
+ float start_angle)
+{
+ float total_radians = TWO_PI * loops;
+ float angle_per_step = total_radians / (float)total_steps;
+ float distance = radius / (float)total_steps * (float)step;
+ float current_angle = start_angle + angle_per_step * (float)step;
+ float current_z = 0;
+ if (TRAVELLING_UPWARDS) {
+ // add in the vertical distance for this step.
+ current_z = MAX_UPWARDS_DISTANCE / total_steps * step;
+ }
+ return <distance * llCos(-current_angle), distance * llSin(-current_angle), current_z>;
+}
+
+// this describes the list of matches in local chat.
+chat_about_matches()
+{
+ integer len = llGetListLength(global_matches_found);
+ if (!len) {
+ llSay(0, global_target_name + " not found within a distance of "
+ + (string) (SENSOR_MAX_RANGE + MAX_SPIRAL_RADIUS) + " meters from here.");
+ return;
+ }
+ string addition;
+ if (len != 1) addition = "es";
+ string match_description = (string)len + " match" + addition + " for search "
+ + "pattern \'" + global_target_name + "\':\n";
+ integer i;
+ // only show a maximum number of matches as we have seeker objects.
+ if (len > MAX_MATCHES) len = MAX_MATCHES;
+ for (i = 0; i < len; i++) {
+ if (llStringLength(match_description) > 350) {
+ llSay(0, "\n" + match_description);
+ match_description = "";
+ } else if (i != 0) match_description += "\n";
+ key targetKey = llList2Key(global_matches_found, i);
+ vector targetPos = llList2Vector(global_positions_found, i);
+ match_description += llKey2Name(targetKey)
+ + " @ " + vector_to_string(targetPos)
+ + " [" + (string) targetKey + "]";
+ }
+ llSay(0, "\n" + match_description);
+}
+
+// once we accumulate a set of matches, we want to show them off.
+show_matches()
+{
+ llSetRot(llEuler2Rot(ZERO_VECTOR)); // set the object to point at the zero vector.
+ reset_rod(ALL_SEEKER_ALERT); // clean up any current pointing first.
+ chat_about_matches(); // say where the matches are.
+
+ integer i;
+ integer which_locater = 0; // which pointer to use.
+ // only show a maximum number of matches as we have seeker objects.
+ integer len = llGetListLength(global_matches_found);
+ if (len > MAX_MATCHES) len = MAX_MATCHES;
+ for (i = 0; i < len; i++) {
+ key targetKey = llList2Key(global_matches_found, i);
+ vector targetPos = llList2Vector(global_positions_found, i);
+ point_at_with_particles(which_locater++, targetKey, targetPos);
+ }
+}
+
+// makes sure that a target we are given is above ground. this used to do a
+// lot more checking, but really being above ground is the most important thing
+// for us to check at this level of the code.
+vector clean_target(vector to_clean)
+{
+ vector to_return = to_clean;
+ float ground_height = llGround(to_return - llGetPos());
+//log_it("ground height here: " + (string)ground_height);
+
+ // we'll adjust the basic ground height by adding in the object's height.
+ list bounds = llGetBoundingBox(llGetKey());
+//hmmm: we have found a bug in opensim in that the bounding box only covers the root prim.
+// this needs to be reported.
+ vector min = llList2Vector(bounds, 0);
+ vector max = llList2Vector(bounds, 1);
+//log_it("calcd: min=" + (string)min + " max=" + (string)max);
+
+//real math float distance_to_add = llVecDist(<0, 0, min.z>, <0, 0, max.z>) / 2.0;
+//below is bogus math for opensim currently.
+ float distance_to_add = llVecDist(<0, 0, min.z>, <0, 0, max.z>) * 1.1;
+
+//log_it("distance_to_add: " + (string)distance_to_add);
+ if (to_return.z - MINIMUM_HEIGHT_ABOVE_GROUND <= ground_height + distance_to_add) {
+ // patch up the height to be above ground.
+ to_return.z = ground_height + distance_to_add + MINIMUM_HEIGHT_ABOVE_GROUND;
+ }
+ return to_return;
+}
+
+// shows all the matches by pointing our seekers at them and emitting a targeted
+// trail of particles. this method should only be called after the final jaunt
+// back to home has occurred.
+show_off_what_was_found()
+{
+ // show the positions of what was found.
+ show_matches();
+ llSetTimerEvent(SNOOZE_BEFORE_RESET);
+ reset_for_next_timer = TRUE;
+}
+
+// stops the device from travelling around and asking for help from the search rods.
+integer finish_spiral_traversal()
+{
+//log_it("got to finish spiral...");
+ stop_sensing(); // turn off all sensors.
+
+ // are we close enough to home to declare victory?
+ if (llVecDist(llGetPos(), global_home_posn) > MAX_SLACK_DISTANCE) {
+ if (!tried_jump_homeward) {
+ // there are enough here; we completed early.
+ tried_jump_homeward = TRUE;
+//log_it("finish spiral sees us as too far from home, jaunting there.");
+ jaunt_to_target(global_home_posn);
+ return FALSE;
+ } else {
+ // we already tried a jump home. dang, let's try spiraling.
+//log_it("finish spiral failed jaunt home, continuing spiral.");
+ tried_jump_homeward = FALSE; // reset that we tried this.
+ return TRUE;
+ }
+ }
+
+//log_it("finish spiral success, showing off matches");
+
+ // this object has done enough spiraling.
+ llSetTimerEvent(NORMAL_TIMER_INTERVAL); // turn off jump timer.
+ running_a_search = FALSE; // reset our state since the search is done.
+ show_off_what_was_found();
+ return FALSE;
+}
+
+// our timer handling function; this will move the search engine to the next place on
+// the current spiral (or to the start of the next spiral) when it is called.
+// if we're not currently running a search, then it will just periodically update the
+// sub-prims to make sure they have the latest versions.
+handle_timer()
+{
+ if (!all_setup_finished) {
+ complain_about_config(!configuration_pending);
+ return; // should not get here.
+ }
+
+ if (reset_for_next_timer) {
+ // this timer intends a reset so we don't just keep pointing forever.
+ llSay(0, "Timed Out: resetting matches now.");
+ reset_search();
+ return;
+ }
+
+ if (!running_a_search) {
+//log_it("exiting timer since not searching.");
+ return;
+ }
+
+//llSay(0, "next search move!");
+
+ // make sure we don't allow too many pauses while awaiting a jaunt completion.
+ if (next_step_snoozes_left-- <= 0) {
+ log_it("waiting to arrive failed! ran out of snoozes trying to get to "
+ + (string)last_jaunt_target);
+ } else if (jaunt_responses_awaited) {
+ // not ready to do next step yet.
+ return;
+ }
+ if (next_step_snoozes_left < 0) {
+//log_it("got below zero in next step snoozes!");
+ next_step_snoozes_left = 0;
+ }
+
+ if (llGetListLength(global_matches_found) < MAX_MATCHES) {
+ // tell the sensor arms to look for stuff right here.
+ request_ping();
+ }
+
+ // make sure we're not already done finding enough objects.
+ if (llGetListLength(global_matches_found) >= MAX_MATCHES) retracing_steps = TRUE;
+
+ // check whether we're trying to get home again, rather than moving forward.
+ if (retracing_steps) {
+//log_it("retrace steps in timed move.");
+ integer keep_going = finish_spiral_traversal();
+ if (!keep_going) return;
+ }
+
+ // see if the object has reached the end of its tether and should report
+ // home with results. we do this by taking a spiral pass outwards from home
+ // and a return pass to get back to home. if we've used up all our spiral
+ // traversals, then it's time to stay home and show the matches.
+ integer done_with_this_spiral = FALSE;
+ if (global_current_pass % 2 == 0) {
+ // even passes are outward bound ones. we're done when we've gotten to TOTAL_STEPS.
+ if (global_current_step++ > TOTAL_STEPS) done_with_this_spiral = TRUE;
+ } else {
+ // odd passes are for returning to home. those are done when they hit zero.
+ if (global_current_step-- <= 0) done_with_this_spiral = TRUE;
+ }
+
+ if (done_with_this_spiral) {
+ // now evaluate whether we're totally done or just need to move to next spiral,
+ // whether inward or outward.
+ if (++global_current_pass < 2 * MAX_SPIRAL_TRAVERSALS) {
+ // just step to the next spiral.
+//log_it("moving to next spiral");
+ if (global_current_pass % 2 == 0) {
+ // even passes are outward bound ones.
+ global_current_step = 0;
+ // add some different angular rotation to get more matches for this spiral.
+ spiral_start_angle += TWO_PI / (MAX_SPIRAL_TRAVERSALS + 1);
+ } else {
+ // odd passes are for returning to home.
+ global_current_step = TOTAL_STEPS;
+ }
+//hmmm: not currently resetting that angle for next search.
+ } else {
+//log_it("done with spiral mode, now retracing steps.");
+ // we finished the search pattern.
+ retracing_steps = TRUE;
+ global_current_pass--; // try spiraling back.
+ global_current_step = TOTAL_STEPS;
+ return;
+ }
+ }
+
+ // normal activity here--pick the next place on the spiral to look for objects.
+ vector new_posn = trace_spiral(SPIRAL_LOOPS, MAX_SPIRAL_RADIUS,
+ TOTAL_STEPS, global_current_step, spiral_start_angle);
+//log_it("next step " + (string)global_current_step + " to " + (string)new_posn);
+ // go to that location now, or rather, when the jaunting library gets the message.
+ vector new_target = clean_target(new_posn + global_home_posn);
+ jaunt_to_target(new_target);
+}
+
+// makes sure we are ready to run. TRUE is returned if we're good.
+integer test_health()
+{
+ if (!configuration_pending && !all_setup_finished) {
+ llSay(0, "Configuration is not good yet; retrying.");
+ return FALSE;
+ }
+ return TRUE;
+}
+
+// deals with the jaunter telling us about a completed jump.
+process_jaunt_response(string str)
+{
+ jaunt_responses_awaited--; // one less response being awaited.
+ if (jaunt_responses_awaited < 0) {
+ if (DEBUGGING)
+ log_it("erroneously went below zero for jaunt responses!");
+ jaunt_responses_awaited = 0;
+ }
+ // unpack the reply.
+ list parms = llParseString2List(str, [HUFFWARE_PARM_SEPARATOR], []);
+ last_jaunt_was_success = (integer)llList2String(parms, 0);
+ vector posn = (vector)llList2String(parms, 1);
+//log_it("got a reply for a jaunt request, success=" + (string)last_jaunt_was_success + " posn=" + (string)posn);
+ if (last_jaunt_was_success) {
+ last_safe_target = posn;
+ } else {
+ // we had a problem getting to the expected destination, so go to the last place we were
+ // completely safely able to reach. we should have no problem returning there, since that's
+ // where we should have been coming from when we failed to reach the intended destination.
+//log_it("bkwd retracing to " + (string)last_safe_target);
+ jaunt_to_target(last_safe_target);
+ }
+}
+
+reset_search()
+{
+ reset_for_next_timer = FALSE;
+
+ llSetTimerEvent(NORMAL_TIMER_INTERVAL); // back to slow timer hits.
+ reset_rod(ALL_SEEKER_ALERT); // reset the pointers to camber position.
+ llSetRot(llEuler2Rot(ZERO_VECTOR)); // set the object to point at the zero vector.
+
+ // set the home position to wherever we happen to be right now.
+ global_home_posn = clean_target(llGetPos());
+ llSetPos(global_home_posn); // get us off the ground.
+ last_safe_target = global_home_posn;
+
+ global_current_step = 0;
+ global_current_pass = 0;
+ global_matches_found = [];
+ global_positions_found = [];
+ next_step_snoozes_left = 4; // reset to small num, since this is additive.
+ reset_for_next_timer = FALSE;
+ running_a_search = FALSE;
+ tried_jump_homeward = FALSE;
+ retracing_steps = FALSE;
+ jaunt_responses_awaited = 0;
+ current_rotation = <0.0, 0.0, 0.0>;
+ // fix a global 'constant' that can't be pre-initiatlized in LSL.
+ SEARCH_ROD_ANGULAR_SWEEP = (PI_BY_TWO / 4.0);
+ // PI_BY_TWO / 4 is 22.25 degrees, which when turned into a sensor cone
+ // will be a range of 45 degrees around the zero vector.
+
+}
+
+initialize()
+{
+ llSay(0, "Initializing... this may take a few seconds.");
+ auto_retire();
+ llSleep(0.2); // we ensure part of the claim above by waiting for sub-scripts to start.
+ request_configuration("");
+}
+
+// complete the initialization once we know our configuration.
+finish_initializing()
+{
+ all_setup_finished = TRUE; // cancel the time-out checker.
+ configuration_pending = FALSE;
+
+ // in case we already have some arms, clean up their pointing states.
+ reset_search();
+ // set the position of rotation back to zero.
+ llSetRot(<0.0, 0.0, 0.0, 1.0>);
+ // listen for commands from our chat channel.
+ listening_handle = llListen(HUFF_SEARCH_CHAT_CHANNEL, "", NULL_KEY, "");
+
+ llSay(0, "Running and ready to search. Touch for more instructions.");
+
+ llSetTimerEvent(NORMAL_TIMER_INTERVAL);
+}
+
+// this points the rods at all angles we possibly can to get the best coverage.
+// if show_particles is true, then a demo mode is used that points at the positions
+// that the rods are aiming at.
+skew_rod_angles(integer show_particles)
+{
+ reset_rod(ALL_SEEKER_ALERT);
+ // point everyone straight up for the moment.
+ float radius = 4.0; // arbitrary distance of target we're aiming at.
+ integer which_child;
+ integer total_searchers = llGetNumberOfPrims() - 1;
+ float angle_per_step = TWO_PI / (float)total_searchers;
+ // use a circle for the x and y coordinates.
+ for (which_child = 0; which_child < total_searchers; which_child++) {
+ vector spinner = <
+ radius * llCos((float)which_child * angle_per_step),
+ radius * llSin((float)which_child * angle_per_step),
+ radius * llCos((float)which_child * angle_per_step / 2.0)>;
+ vector target_location = llGetPos() + spinner;
+ if (!show_particles) {
+ aim_at_position(which_child, target_location);
+ } else {
+ point_at_with_particles(which_child, NULL_KEY, target_location);
+ }
+ }
+}
+
+// if "noisy" is true, this says out loud that the searchbert is busy.
+integer check_if_search_pending(integer noisy)
+{
+ if (running_a_search) {
+ if (noisy) llSay(0, "A search is still pending. Please wait for that to finish.");
+ return TRUE; // still working on a search.
+ }
+ return FALSE; // not busy.
+}
+
+// processes a message coming back from a search rod or from the jaunter library.
+handle_link_message(integer which, integer num, string msg, key id)
+{
+ if ( (num == CARD_CONFIGURATOR_HUFFWARE_ID + REPLY_DISTANCE)
+ && (msg == CARD_CONFIG_RECEIVED_ALERT) ) {
+ // the first element of the list will still be the notecard name.
+ consume_configuration(llParseString2List(id, [HUFFWARE_PARM_SEPARATOR], []));
+ return;
+ }
+
+ if ( (num == BUTTON_PUSHER_HUFFWARE_ID + REPLY_DISTANCE)
+ && (msg == BUTTON_PUSHED_ALERT) ) {
+ if (id == ARMS_ARE_GOOD_BUTTON_NAME) {
+ finish_initializing();
+ } else if (id == PROBLEM_WITH_MY_THUMBS_BUTTON_NAME) {
+ complain_about_config(TRUE);
+ }
+ return;
+ }
+
+ if (num == JAUNT_HUFFWARE_ID + REPLY_DISTANCE) {
+ if (msg == JAUNT_COMMAND) {
+ process_jaunt_response(id);
+ }
+ return;
+ }
+
+ list parms;
+
+ if ( (num == SEARCHBERT_MENUS_HUFFWARE_ID + REPLY_DISTANCE) && (msg == SM_EVENT_MENU_CLICK) ) {
+ parms = llParseString2List(id, [HUFFWARE_PARM_SEPARATOR], []);
+ process_menu_choice(llList2String(parms, 0), llList2String(parms, 2), llList2String(parms, 3),
+ llList2String(parms, 1));
+ return;
+ }
+
+ if (num != HUFF_SEARCH_POINTER_HUFFWARE_ID + REPLY_DISTANCE) return; // not for us.
+ if (msg != HUFF_SEARCH_MATCH_EVENT) return; // also not for us.
+
+ // make sure this is not already redundant, before doing a costly list search.
+ if (llGetListLength(global_matches_found) >= MAX_MATCHES) {
+ // we have enough already.
+ stop_sensing();
+ return;
+ }
+//hmmm: searchbert arms are still backwards.
+
+//log_it("unpacking " + (string)llStringLength(id) + " byte string.");
+ // fluff out the list back from the encoded string.
+ parms = llParseString2List(id, [HUFFWARE_PARM_SEPARATOR], []);
+//log_it("received " + (string)llGetListLength(parms) + " element list from string.");
+
+ while (llGetListLength(parms) > 1) {
+ // unpack the match that one of our seekers found for us.
+ key found = (string)llList2String(parms, 0);
+ if (find_in_list(global_matches_found, found) < 0) {
+ vector posn = (vector)llList2String(parms, 1);
+ // that key wasn't already listed, so we can drop it in the list.
+ global_matches_found += found;
+ global_positions_found += posn;
+ }
+ // truncate the list by removing those two pieces we already handled.
+ parms = llDeleteSubList(parms, 0, 1);
+ if (llGetListLength(global_matches_found) >= MAX_MATCHES) {
+ // we can bail out of the list processing now; we have enough already.
+ parms = [];
+ }
+ }
+}
+
+// uses the configuration item as the value of one of our variables, if we can figure out
+// the name involved.
+apply_variable_definition(string var, string value)
+{
+//log_it("[" + var + "=" + value + "]");
+ if (var == "max_matches") {
+ MAX_MATCHES = (integer)value;
+ } else if (var == "max_spiral_radius") {
+ MAX_SPIRAL_RADIUS = (float)value;
+ } else if (var == "sensor_max_range") {
+ SENSOR_MAX_RANGE = (float)value;
+ } else if (var == "huff_search_chat_channel") {
+ // we have to hook up our ears to the new channel here.
+ if (listening_handle) llListenRemove(listening_handle);
+ HUFF_SEARCH_CHAT_CHANNEL = (integer)value;
+ listening_handle = llListen(HUFF_SEARCH_CHAT_CHANNEL, "", NULL_KEY, "");
+ } else if (var == "traverse_lands") {
+ TRAVERSE_LANDS = (integer)value;
+ } else if (var == "spiral_loops") {
+ SPIRAL_LOOPS = (integer)value;
+ } else if (var == "total_steps") {
+ TOTAL_STEPS = (integer)value;
+ } else if (var == "max_spiral_traversals") {
+ MAX_SPIRAL_TRAVERSALS = (integer)value;
+ } else if (var == "search_rod_angular_sweep") {
+ SEARCH_ROD_ANGULAR_SWEEP = (float)value;
+ } else if (var == "travelling_upwards") {
+ TRAVELLING_UPWARDS = (integer)value;
+ } else if (var == "max_upwards_distance") {
+ MAX_UPWARDS_DISTANCE = (float)value;
+ } else {
+ if (DEBUGGING)
+ log_it("unknown variable '" + var + "' tried to define value = " + value);
+ }
+}
+
+// we have to consume the configuration in digestible chunks, since the pieces may
+// be too large for sending in link messages.
+consume_configuration(list config_chunk)
+{
+ string notecard_name = llList2String(config_chunk, 0);
+ if (notecard_name == BAD_NOTECARD_TEXT) {
+ complain_about_config(FALSE);
+ return;
+ } else if (notecard_name == FINISHED_READING_NOTECARDS) {
+ // we're ready to make use of our new configuration now.
+ if (DEBUGGING)
+ log_it("Configuration has been read, need validation of limbs.");
+ configuration_pending = FALSE; // no longer waiting for notecard config.
+ // configure the menu system to know what channel to talk about.
+ llMessageLinked(LINK_THIS, SEARCHBERT_MENUS_HUFFWARE_ID, SM_CONFIGURE_INFO,
+ wrap_parameters([HUFF_SEARCH_CHAT_CHANNEL]));
+ // now check our arms to make sure they're all ready.
+ llMessageLinked(LINK_THIS, BUTTON_PUSHER_HUFFWARE_ID, BUTTON_PUSHED_ALERT, CHECK_ARMS_BUTTON_NAME);
+ return;
+ }
+
+ integer sandy;
+ // scan the configuration items two at a time, but skip the notecard name at slot zero.
+ for (sandy = 1; sandy < llGetListLength(config_chunk); sandy += 2) {
+ string var = llList2String(config_chunk, sandy);
+ string value = llList2String(config_chunk, sandy + 1);
+ apply_variable_definition(var, value);
+ }
+ // clear the list out now that we've eaten its contents.
+ config_chunk = [];
+}
+
+//////////////
+
+// sends a message to the "which_seeker" search object. the "parameters" should be a
+// string-ized list of parameters. the "command" is the specific action requested.
+request_from_seeker(integer which_seeker, string parameters, string command)
+{
+ integer linkNumber = which_seeker + 2;
+ if (which_seeker == ALL_SEEKER_ALERT) linkNumber = LINK_ALL_OTHERS;
+ llMessageLinked(linkNumber, HUFF_SEARCH_POINTER_HUFFWARE_ID, command, parameters);
+}
+
+// aim the specified seeker rod at the object with the key and position.
+point_at_with_particles(integer which_seeker, key targetId, vector targetPosition)
+{
+ list paramList = [targetId, targetPosition];
+ request_from_seeker(which_seeker, llDumpList2String(paramList, HUFFWARE_PARM_SEPARATOR),
+ HUFF_SEARCH_POINT_PARTY);
+}
+
+// stop the particle stream running at the specified search rod.
+reset_rod(integer which_seeker) { request_from_seeker(which_seeker, "", HUFF_SEARCH_RESET); }
+
+// support for reading configuration from notecards...
+
+string CARD_CONFIGURATOR_SIGNATURE = "#searchbert";
+ // the notecard signature we use for our configuration.
+
+// tries to load a searchbert configuration notecard with the name specified. if it's blank,
+// then any config notecard will do.
+request_configuration(string notecard_name)
+{
+ if (DEBUGGING) log_it("have hit request_configuration.");
+ all_setup_finished = FALSE;
+ configuration_pending = TRUE;
+ // figure out whether we have a pre-chosen configuration or not.
+ if (llStringLength(notecard_name) == 0) {
+ // start reading the configuration from whatever card.
+ llMessageLinked(LINK_THIS, CARD_CONFIGURATOR_HUFFWARE_ID,
+ BEGIN_READING_NOTECARD_COMMAND, CARD_CONFIGURATOR_SIGNATURE + HUFFWARE_PARM_SEPARATOR
+ + wrap_item_list([]));
+ } else {
+ // get the specific one they wanted.
+ if (DEBUGGING) log_it("Reading configuration from notecard: " + notecard_name);
+ llMessageLinked(LINK_THIS, CARD_CONFIGURATOR_HUFFWARE_ID,
+ READ_PARTICULAR_NOTECARD_COMMAND, CARD_CONFIGURATOR_SIGNATURE + HUFFWARE_PARM_SEPARATOR
+ + wrap_item_list([]) + HUFFWARE_PARM_SEPARATOR
+ + notecard_name);
+ }
+
+ // make sure we complete this in time.
+ llSetTimerEvent(STARTUP_TIME_ALLOWED);
+}
+
+// this is used when we've totally failed to start up properly.
+// if "arms_problem" is true, then the issue is considered to be that the seeker arms
+// are missing.
+complain_about_config(integer arms_problem)
+{
+ configuration_pending = FALSE; // it's failed, so we no longer pause for it.
+ string explanation = "something prevented me from putting my seeker arms back on";
+ if (!arms_problem) explanation = "either no notecard had the prefix '"
+ + CARD_CONFIGURATOR_SIGNATURE + "'\n"
+ + "or this sim is very busy and timed out";
+ // we hated the notecards we found, or there were none, or our arms are still ripped off.
+ llOwnerSay("Sorry... " + explanation + ".\nI will restart now to try again.");
+ llSleep(4);
+ llResetScript();
+}
+
+// handles when a menu has been clicked on.
+process_menu_choice(string menu_name, string av_name, string av_key, string which_choice)
+{
+ if (menu_name == "main") {
+ if (which_choice == "Matches") {
+ // if there are any current matches, describe them again.
+ if (llGetListLength(global_matches_found)) show_off_what_was_found();
+ else llSay(0, "There are no current matches.");
+ return;
+ } else if (which_choice == "Reset") {
+ carefully_reset_search_list(av_key);
+ return;
+ }
+ }
+//other things will come...
+
+ if (DEBUGGING)
+ log_it("non-implemented menu: " + menu_name + "/" + which_choice + " for " + av_name);
+}
+
+// reset the search list and get ready for a new search.
+carefully_reset_search_list(key id)
+{
+ if (check_if_search_pending(FALSE)) {
+ // only allow reset while running if it's the owner.
+ if (id != llGetOwner()) {
+ check_if_search_pending(TRUE); // be noisy now.
+ return; // we're busy.
+ }
+ llOwnerSay("Stopping active search.");
+ retracing_steps = TRUE;
+ return;
+ }
+ llSay(0, "Resetting matches.");
+ reset_search();
+}
+
+//////////////
+// from hufflets...
+
+//////////////
+// huffware script: auto-retire, by fred huffhines, version 2.8.
+// 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--) {
+ 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.
+ }
+ if (space_v_posn < 2) return []; // no space found.
+ // 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--) {
+ 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);
+ }
+ }
+ 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 [];
+}
+//
+//////////////
+
+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.
+ llWhisper(0, 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);
+}
+
+// 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); }
+
+string wrap_item_list(list to_wrap)
+{ return llDumpList2String(to_wrap, HUFFWARE_ITEM_SEPARATOR); }
+
+// returns the index of the first occurrence of "pattern" inside
+// the "full_string". if it is not found, then a negative number is returned.
+integer find_substring(string full_string, string pattern)
+{ return llSubStringIndex(llToLower(full_string), llToLower(pattern)); }
+
+// returns TRUE if the "prefix" string is the first part of "compare_with".
+integer is_prefix(string compare_with, string prefix)
+{ return find_substring(compare_with, prefix) == 0; }
+
+// encases a list of vectors in the expected character for the jaunting library.
+string wrap_vector_list(list to_wrap)
+{
+ integer len = llGetListLength(to_wrap);
+ integer i;
+ string to_return;
+ for (i = 0; i < len; i++) {
+ if (i > 0) to_return += "|";
+ to_return += llList2String(to_wrap, i);
+ }
+ return to_return;
+}
+
+// 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;
+}
+
+integer float_precision = 2; // number of digits used when printing floats.
+
+//hmmm: in hufflets yet???
+string float_to_string(float to_print)
+{
+ string to_return = (string)to_print;
+ // find out where the decimal point is in the string.
+ integer decimal_point_posn = llSubStringIndex(to_return, ".");
+ if (decimal_point_posn < 0) return to_return;
+ return llGetSubString(to_return, 0, decimal_point_posn + float_precision);
+}
+
+//hmmm: in hufflets yet???
+string vector_to_string(vector to_print)
+{
+ string to_return = "<";
+ to_return += float_to_string(to_print.x);
+ to_return += ", ";
+ to_return += float_to_string(to_print.y);
+ to_return += ", ";
+ to_return += float_to_string(to_print.z);
+ to_return += ">";
+ return to_return;
+}
+
+// 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() { initialize(); }
+
+ state_exit() { llSetTimerEvent(0); }
+
+ on_rez(integer parm) { state default; }
+
+ timer() { handle_timer(); }
+
+ link_message(integer which, integer num, string str, key id)
+ { handle_link_message(which, num, str, id); }
+
+ changed(integer change) {
+ if (change & CHANGED_INVENTORY) {
+ llSleep(1.4); // snooze to allow other things to react first.
+ request_configuration(""); // see if there's a card update.
+ }
+ }
+
+ listen(integer chan, string name, key id, string msg) {
+ if (msg == "#reset") {
+ carefully_reset_search_list(id);
+ } else if (is_prefix(msg, "#find ")) {
+ // needs arms for this trick.
+ if (!test_health()) state default;
+ // try to locate the object the user has specified.
+ if (check_if_search_pending(TRUE)) return; // we're busy.
+ reset_search(); // clean out prior state.
+ global_target_name = llDeleteSubString(msg, 0, 5); // Delete "#find " from msg
+ running_a_search = TRUE; // record that we're searching.
+ // point all the rods in as many different directions as we can.
+ skew_rod_angles(FALSE);
+ // look for any objects near each seeker and in the direction it's pointing.
+ // we double the arc we might need to try to get more matches.
+ start_sensing(ALL_SEEKER_ALERT, SENSOR_MAX_RANGE,
+ SEARCH_ROD_ANGULAR_SWEEP, global_target_name, MAX_MATCHES);
+ // start stepping through our search spirals.
+ llSetTimerEvent(FAST_TIMER_INTERVAL);
+ llSay(0, "Searching for " + global_target_name);
+ } else if (is_prefix(msg, "#initialize")) {
+ llResetScript();
+ } else if (is_prefix(msg, "#skew")) {
+ llSetTimerEvent(SNOOZE_BEFORE_RESET);
+ reset_for_next_timer = TRUE;
+ skew_rod_angles(TRUE);
+ } else if (is_prefix(msg, "#channel")) {
+ HUFF_SEARCH_CHAT_CHANNEL = (integer)llDeleteSubString(msg, 0, 7);
+ llSay(0, "Changed listening channel to " + (string)HUFF_SEARCH_CHAT_CHANNEL + ".");
+ llMessageLinked(LINK_THIS, SEARCHBERT_MENUS_HUFFWARE_ID, SM_CONFIGURE_INFO,
+ wrap_parameters([HUFF_SEARCH_CHAT_CHANNEL]));
+ apply_variable_definition("huff_search_chat_channel", (string)HUFF_SEARCH_CHAT_CHANNEL);
+ }
+ }
+
+ touch_start(integer num) {
+ // make sure we have already been set up.
+ if (!test_health()) state default;
+
+ if (check_if_search_pending(TRUE)) return;
+
+ // send a request to the menu script for the users' clicks...
+ integer indy;
+ for (indy = 0; indy < num; indy++) {
+ // request new menu popup for each av that clicked.
+ llMessageLinked(LINK_THIS, SEARCHBERT_MENUS_HUFFWARE_ID, SM_POP_MAIN_MENU_UP,
+ wrap_parameters([llDetectedName(indy), llDetectedKey(indy)]));
+ }
+ }
+}
+
+/////////
+// original attributions:
+// Special Particle Sensor "Brain" Script
+// Written by Christopher Omega
+// Tasks: Listen to the owner, Parse the owner's message, Signal individual locators
+// to reset, Or point at a certain object within 96 meters of the apparatus.
+/////////
+
+// note by fred huffhines:
+// much of this script was originally written by the attributed authors above. however,
+// i have spent a ton of time improving this pair of scripts... (the brain and the
+// search pointer). i've added pattern matching (rather than needing to know exact
+// names), added the spiral search traversal method to improve search behavior and
+// get more results, improved the particle streams, and other bits. i just recently added
+// configurability from notecards for searchbert options and a menuing system to provide
+// help and runtime control over some of the options. wheeee, it's been a lot of fun.
+// --fred.
projects / feisty_meow.git / blobdiff