--- /dev/null
+
+// huffware script: concussive (aka blow em up), by fred huffhines
+//
+// provides a script for a missile that will start tracking the last position it
+// hit something at and will start a sensor probe to see if there are avatars there.
+// if there are, it will blow up and try to take avatars and active objects with it.
+//
+// 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.
+//
+
+// hmmm: unimplemented ideas...
+// buddy list; ids to not blow up besides the owner.
+// maybe that's just a team setup.
+// probably better in a notecard?
+
+
+// configurable parameters...
+
+float sense_distance = 23.0;
+ // the distance from the bisconation device within which to search for happy targets.
+
+float sensory_addition = 14.0;
+ // the amount of distance that can be added in the case of
+ // a failure to sense any avatars or items.
+
+float push_magnitude = 2147483646.0; //maxint - 1, dealing with svc-2723.
+ // how much to push the targets that we have located.
+
+integer MAXIMUM_HITS = 2;
+ // the most times the object is allowed through its sensor loops.
+
+float MAX_VEL_ADJUST = 20.0;
+ // the maximum amount we would randomly add to the object's velocity after a
+ // failure to sense any items.
+
+//////////////
+// 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 [];
+}
+//
+//////////////
+
+//borrowed from jump good
+set_velocity(vector new_velocity, integer local_axis)
+{
+ vector current_velocity = llGetVel();
+
+ if (local_axis) {
+ rotation rot = llGetRot();
+ current_velocity /= rot; // undo the rotation.
+ }
+
+ new_velocity -= current_velocity;
+ new_velocity *= llGetMass();
+
+ llApplyImpulse(new_velocity, local_axis);
+}
+
+// attempts to bring the object to a complete stop.
+full_stop()
+{
+ llSetForce(<0,0,0>, FALSE);
+ set_velocity(<0,0,0>, FALSE);
+}
+
+//////////////
+
+//////////////
+//borrowed from jaunt script...
+///////////////
+
+// returns the portion of the list between start and end, but only if they are valid compared with
+// the list length. an attempt to use negative start or end values also returns a blank list.
+list chop_list(list to_chop, integer start, integer end)
+{
+ integer last_len = llGetListLength(to_chop) - 1;
+ if ( (start < 0) || (end < 0) || (start > last_len) || (end > last_len) ) return [];
+ return llList2List(to_chop, start, end);
+}
+
+// the most jumps the script will try to take. the overall distance from the start
+// to the end can be 10 * MAXIMUM_JUMPS meters.
+integer MAXIMUM_JUMPS = 100;
+
+// used to calculate jump distances.
+vector last_posn;
+
+// helper function for warp_across_list. this adds one jump vector to the
+// list of rules as long as the destination is interesting.
+list process_warp_item(vector next_jump)
+{
+//tell_owner("last posn " + (string)last_posn);
+//tell_owner("next warp " + (string)next_jump);
+ // calculate the number of jumps needed.
+ integer jumps = (integer)(llVecDist(next_jump, last_posn) / 10.0) + 1;
+ // calculate the offset needed for crossing sim boundaries.
+/// adjust_offset(next_jump);
+ last_posn = next_jump; // record for next check.
+ // set up our list which we'll replicate.
+ list rules = [ PRIM_POSITION, next_jump ];
+ // Try and avoid stack/heap collisions.
+ if (jumps > MAXIMUM_JUMPS) jumps = MAXIMUM_JUMPS;
+ // add the rules repeatedly to get the effective overall jump done.
+ integer count = 1;
+ while ( (count = count << 1) < jumps) rules += rules;
+ // magnify the rule list before really adding it. this gets us to the proper
+ // final number of jumps.
+ return rules + llList2List(rules, (count - jumps) << 1, count);
+}
+
+// originally based on warpPos from lsl wiki but drastically modified.
+// uses a set of
+// transfer points instead of a single target.
+list warp_across_list(list full_journey, integer forwards)
+{
+//tell_owner("entry to warp across list, list size=" + (string)llGetListLength(full_journey));
+ // make sure the list didn't run out.
+ if (llGetListLength(full_journey) == 0) return [];
+ if (forwards) {
+ // forwards traversal of the list.
+ vector next_jump = (vector)llList2String(full_journey, 0);
+ // shortcut the jumps if we're already there.
+ if (next_jump == llGetPos())
+ return warp_across_list(chop_list(full_journey, 1, llGetListLength(full_journey) - 1), forwards);
+ // calculate our trajectory for the next jump and add in all subsequent jumps.
+ return process_warp_item(next_jump)
+ + warp_across_list(chop_list(full_journey, 1, llGetListLength(full_journey) - 1), forwards);
+ } else {
+ // reverse traversal of the list.
+ vector next_jump = (vector)llList2String(full_journey, llGetListLength(full_journey) - 1);
+ // shortcut the jumps if we're already there.
+ if (next_jump == llGetPos())
+ return warp_across_list(chop_list(full_journey, 0, llGetListLength(full_journey) - 2), forwards);
+ // calculate our trajectory for the next jump and add in all subsequent jumps.
+ return process_warp_item(next_jump)
+ + warp_across_list(chop_list(full_journey, 0, llGetListLength(full_journey) - 2), forwards);
+ }
+}
+
+// the main function that performs the jaunting process.
+jaunt(list full_journey, integer forwards)
+{
+ // set up our global variables...
+ last_posn = llGetPos();
+ // calculate the trip and run it.
+ llSetPrimitiveParams(warp_across_list(full_journey, forwards));
+ // failsafe to patch up any math issues...
+ integer last_indy = 0;
+ if (forwards == TRUE) last_indy = llGetListLength(full_journey) - 1;
+
+ // pick out the last target in the list based on the direction we're moving.
+ vector last_jump = (vector)llList2String(full_journey, last_indy);
+ integer max_attempts = 3; // a rough guess at most adjustments we'd ever need.
+ while ( (llVecDist(llGetPos(), last_jump) > .001) && (max_attempts-- > 0) ) {
+////llWhisper(0, "touch up jump from " + (string)llGetPos());
+ llSetPos(last_jump);
+ }
+}
+
+//end borrowed from jaunt
+//////////////
+
+// sends an object back along its trajectory.
+reverse_velocity(integer local_axis)
+{
+ vector current_velocity = llGetVel();
+
+ if (local_axis) {
+ rotation rot = llGetRot();
+ current_velocity /= rot; // undo the rotation.
+ }
+
+ vector new_velocity = -2 * current_velocity;
+ new_velocity *= llGetMass();
+
+ llApplyImpulse(new_velocity, local_axis);
+}
+
+//////////////
+
+// globals that record parameters during runtime.
+
+vector last_victim = <0.0, 0.0, 0.0>;
+ // the last place we collided or sensed something and decided to check out.
+
+vector previous_velocity;
+ // the rate the object was going when it started to hit something.
+
+// the steps taken when the bullet itself dies.
+dying_scene()
+{
+ // make fire appear again.
+ llMakeExplosion(20, 1.0, 5, 3.0, 1.0, "fire", ZERO_VECTOR);
+ // replay the explosion noise, for good measure
+ llTriggerSound("Explosion", 1.0);
+ // make the smoke visible. it would technically be faster than the sound, but
+ // the call also pauses the script.
+ llMakeExplosion(20, 1.0, 5, 3.0, 1.0, "Smoke", ZERO_VECTOR);
+ // gone!
+ llDie();
+}
+
+fling_at(vector location)
+{
+ if (location == <0.0, 0.0, 0.0>) return;
+ vector proper_direction = location - llGetPos();
+ set_velocity(100 * proper_direction, FALSE);
+}
+
+jaunt_to_location(vector location)
+{
+ if (location == <0.0, 0.0, 0.0>) return;
+ // this turns off the physics property for the object, so that jaunt and
+ // llSetPos will still work. this became necessary due to havok4.
+ llSetStatus(STATUS_PHYSICS, FALSE);
+ llSetStatus(STATUS_PHANTOM, TRUE);
+ // go to position specified.
+ jaunt([llGetPos(), location], TRUE);
+ // return to prior characteristics.
+ llSetStatus(STATUS_PHANTOM, FALSE);
+ llSetStatus(STATUS_PHYSICS, TRUE);
+
+//simplistic version.
+//// llSetPos(location);
+}
+
+blow_up_item(key to_whack, integer type)
+{
+ if (to_whack == NULL_KEY) {
+ llOwnerSay("wtf? passed a null key in blow up item.");
+ return;
+ }
+ list details = llGetObjectDetails(to_whack, [ OBJECT_POS ]);
+ vector current_victim = llList2Vector(details, 0);
+/// fling_at(current_victim);
+ jaunt_to_location(current_victim - <0.0, 0.0, 0.042>);
+ if (type & AGENT) {
+ llOwnerSay("targeting: " + llKey2Name(to_whack));
+ // flame first.
+ llMakeExplosion(20, 1.0, 5, 3.0, 1.0, "fire", ZERO_VECTOR);
+ // reset the last victim for a *real* victim.
+ last_victim = current_victim;
+ }
+//fling_at(last_victim);//trying new approach.
+ // then a huge push.
+ llPushObject(to_whack, push_magnitude * llRot2Up(llGetRot()), ZERO_VECTOR, FALSE);
+ // then the noise, if the victim is important enough.
+ if (type & AGENT) {
+ // make a glad noise. sound is slower, right?
+llSetStatus(STATUS_PHYSICS, FALSE);//guess temp.
+ llTriggerSound("Explosion", 1.0);
+llSetStatus(STATUS_PHYSICS, TRUE);//guess temp.
+ }
+}
+
+reset_to_last_hit()
+{
+ jaunt_to_location(last_victim); // start back where we first collided.
+ // onward at nearly the same rate, but backwards.
+ vector adjusted = <llFrand(MAX_VEL_ADJUST), llFrand(MAX_VEL_ADJUST),
+ llFrand(MAX_VEL_ADJUST)>;
+ set_velocity(-previous_velocity + adjusted, FALSE);
+ last_victim = <0.0, 0.0, 0.0>; // allow collisions to start being noticed again.
+ }
+
+integer blow_up_avatars(integer total_number)
+{
+// fling_at(last_victim);
+ jaunt_to_location(last_victim);
+
+//if (last_victim != <0.0, 0.0, 0.0>) {
+//full_stop();
+//// check where it actually thinks we hit.
+//integer i;
+//for (i = 0; i < 20; i++)
+//llMakeExplosion(20, 1.0, 5, 3.0, 1.0, "fire", ZERO_VECTOR);
+//}
+
+ integer found_avatar = FALSE;
+
+ // now whack the avatars.
+ integer i;
+ for (i = 0; i < total_number; i++) {
+ // if we hit an avatar, slam them away.
+ key curr_key = llDetectedKey(i);
+ if (curr_key != NULL_KEY) {
+ // why would the key ever be null? yet it seems we have seen that.
+ integer type = llDetectedType(i);
+ // make sure the target is an avatar and it's NOT the owner.
+ if (curr_key != llGetOwner()) {
+ // blow them up regardless of what type they are.
+ blow_up_item(curr_key, type);
+ // set that we found an avatar if the type is right.
+ if (type & AGENT) found_avatar = TRUE;
+ }
+ }
+ }
+
+ if (!found_avatar) {
+ reset_to_last_hit();
+ return FALSE; // don't die right now. we didn't achieve our objective.
+ }
+
+ dying_scene();
+ return TRUE; // i'm not sure we'll ever see this statement...
+}
+
+integer enabled = FALSE; // true if bullet is ready to operate.
+
+integer hits_used = 0; // number of hits consumed so far on sensors.
+
+prepare_bullet()
+{
+/// llSensorRemove();
+
+// llSetDamage(5000); // hang onto that.
+//what do they mean by "task will be killed"?
+
+ // pick the object characteristics that seem to work best.
+ llSetStatus(STATUS_PHYSICS, TRUE);
+ llSetStatus(STATUS_PHANTOM, FALSE);
+
+ hits_used = 0;
+ last_victim = <0.0, 0.0, 0.0>;
+}
+
+limit_obnoxiousness()
+{
+ hits_used++;
+ if (hits_used > MAXIMUM_HITS) dying_scene();
+}
+
+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();
+ llPreloadSound("Explosion");
+ prepare_bullet();
+ }
+
+ on_rez(integer start_param) {
+ // make this a bit more specific so we can work on it.
+ if (start_param == 2814) {
+ prepare_bullet();
+ enabled = TRUE;
+ }
+ }
+
+ collision_start(integer total_number)
+ {
+ if (!enabled) return;
+ // initialize our boom position if it hasn't been yet.
+ if (last_victim == <0.0, 0.0, 0.0>) {
+ previous_velocity = llGetVel();
+ last_victim = llGetPos();
+// reverse_velocity(FALSE);
+ // sense up any bogies.
+ llSensor("", NULL_KEY, AGENT | ACTIVE, sense_distance, 2.0 * PI);
+ }
+ }
+
+ sensor(integer total_number) {
+ if (!enabled) return;
+ limit_obnoxiousness();
+ // act on who we sensed around us.
+ integer found_one = blow_up_avatars(total_number);
+ // did we find an avatar? that makes us explode with pleasure.
+ if (!found_one) {
+ // start looking again.
+ llSensor("", NULL_KEY, AGENT | ACTIVE, sensory_addition + sense_distance, 2.0 * PI);
+ } else {
+ // we had seen one, so croak.
+ dying_scene();
+ }
+ }
+
+ no_sensor() {
+ if (!enabled) return;
+ limit_obnoxiousness();
+ // try again until we find a victim.
+ reset_to_last_hit();
+ llSensor("", NULL_KEY, AGENT | ACTIVE, 2.0 * sensory_addition
+ + sense_distance, 2.0 * PI);
+ }
+}
+
projects / feisty_meow.git / blobdiff