--- /dev/null
+
+// huffware script: jump good, by fred huffhines
+// "jump good" is an homage to samurai jack.
+//
+// if you wear an object containing this script (and using the
+// jump_good_jump_strength() value), then this script will make
+// your jumps much higher than normal. other values for the
+// jump strength will vary the force on you accordingly.
+//
+// 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.
+//
+
+//////////////
+
+// this section provides some example forces one might want to exert.
+// all floating point numbers below are measured in meters per second squared,
+// which is a measurement of acceleration.
+
+float EARTH_ACCELERATION = 9.80665;
+ // the acceleration due to gravity on earth.
+
+float JUPITER_ACCELERATION = 25.93;
+ // the acceleration on jupiter due to gravity.
+
+float earth_jump_strength() { return EARTH_ACCELERATION - EARTH_ACCELERATION; }
+ // normal gravity for the earth; no additional force added.
+
+float jupiter_jump_strength()
+{ return EARTH_ACCELERATION - (JUPITER_ACCELERATION - EARTH_ACCELERATION); }
+ // this is what the jump force should be when approximating jupiter's gravity.
+
+float jump_good_jump_strength() { return 8.4; }
+ // samurai jack was probably able to jump this high after the tree dwellers
+ // taught him how to jump good.
+
+integer DEBUGGING = FALSE;
+ // if this is true, then extra noise is made about state transitions.
+
+float TIMER_PERIOD = 4.0;
+ // how frequently to check our state.
+
+//////////////
+
+// this is the most important jump strength, since it's the one we'll use...
+
+float jump_strength() { return jump_good_jump_strength(); }
+ // the amount of force that you're "thrown" upwards with. this is
+ // relative to your mass. the force of gravity pulls on objects with
+ // a force of 9.80665, so if the jump strength exceeds that, the object
+ // will never return to earth.
+
+//////////////
+
+// global variables...
+
+key attached_key; // key of the avatar wearing the object, if any avatar is.
+
+integer _last_seen_flying; // tracks the attached avatar's flight state.
+
+integer enabled; // records device's state; if false, then it's off.
+
+//////////////
+
+// makes the force appropriate to the mass of the overall object.
+use_configured_force()
+{
+ float mass = llGetMass();
+//log_it("mass is " + (string)mass);
+ if (mass == 0.0) mass = 20000;
+ // fake there being a good mass.
+ vector force = <0,0, mass * jump_strength()>;
+//log_it("using force of " + (string)force + ".");
+ llSetForce(force, FALSE);
+}
+
+// resets force to zero to have normal gravity return.
+use_zero_force() {
+//log_it("using zero force.");
+
+ llSetForce(<0,0,0>, FALSE); }
+
+// changes the objects current velocity to match "new_velocity".
+// if the "local_axis" is true, then it applies the velocity to the
+// object's own axis. if false, then it uses the global axis of
+// the simulator.
+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);
+}
+
+// picks the right amount of force based on whether the object is
+// attached to an avatar and whether the avatar is flying.
+set_force_appropriately()
+{
+ if (attached_key != NULL_KEY) {
+ // make sure we're not flying now; jump force would be redundant.
+ if (llGetAgentInfo(llGetOwner()) & AGENT_FLYING) {
+ if (!_last_seen_flying) {
+//log_it("avatar wasn't flying, is now. setting zero force.");
+ use_zero_force();
+ }
+ _last_seen_flying = TRUE;
+ } else {
+//if (_last_seen_flying) {
+//log_it("avatar was just flying, but is not now. setting configured force.");
+//}
+ // we're not flying so keep our force set.
+ _last_seen_flying = FALSE;
+ use_configured_force();
+
+ }
+ } else {
+ // there's no one attached, so just follow our plan with the force.
+ use_configured_force();
+ }
+}
+
+initialize_forces()
+{
+ enabled = FALSE;
+ _last_seen_flying = FALSE;
+ attached_key = NULL_KEY;
+ llSetTimerEvent(TIMER_PERIOD); // check avatar's state periodically.
+ if (llGetAttached() != 0) {
+ // there's an avatar attached right now! get the stats right.
+ attached_key = llGetOwner();
+ if (llGetAgentInfo(llGetOwner()) & AGENT_FLYING) _last_seen_flying = TRUE;
+ else _last_seen_flying = FALSE;
+ }
+ set_force_appropriately();
+}
+
+//////////////
+// 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.
+ string addition;
+ if (DEBUGGING) addition = llGetScriptName() + "[" + (string)debug_num + "] ";
+ llOwnerSay(addition + 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);
+}
+
+//////////////
+
+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();
+//log_it("state_entry");
+ initialize_forces();
+ }
+
+ timer() {
+ // we can't do anything without physics enabled.
+ if (!llGetStatus(STATUS_PHYSICS))
+ llSetStatus(STATUS_PHYSICS, TRUE);
+ if (!llGetStatus(STATUS_PHANTOM))
+ llSetStatus(STATUS_PHANTOM, FALSE);
+ if (enabled) set_force_appropriately();
+ else use_zero_force();
+ }
+
+ attach(key avatar)
+ {
+//log_it("into attach, key=" + (string)avatar);
+ initialize_forces();
+ }
+
+ on_rez(integer parm) {
+//log_it("on_rez");
+ initialize_forces();
+ }
+
+ touch_start(integer count) {
+ if (llDetectedKey(0) != llGetOwner()) return; // not listening to that guy.
+ if (llGetAttached() == 0) return; // cannot change state if not attached.
+ // flip the current state, since they clicked.
+ if (enabled) {
+ log_it("disabled gravity control.");
+ enabled = FALSE;
+ use_zero_force();
+ } else {
+ log_it("enabled gravity control.");
+ enabled = TRUE;
+ use_configured_force();
+ }
+ }
+}
+
projects / feisty_meow.git / blobdiff