--- /dev/null
+
+// huffware script: axis rider, by fred huffhines.
+//
+// causes an object to move up and down on the z axis, although that and
+// other parameters can be modified.
+//
+// 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.
+//
+
+// these two control how far from the original position the object may travel.
+float MIN_POSITION = -0.3;
+float MAX_POSITION = 1.0;
+// these specify which axis to modify and compare on.
+integer USE_X_AXIS = FALSE;
+integer USE_Y_AXIS = FALSE;
+integer USE_Z_AXIS = TRUE;
+// these are the limits on how much the object can move during one timer click.
+float MIN_POSITION_ADJUSTMENT = 0.05;
+float MAX_POSITION_ADJUSTMENT = 0.07;
+
+// jitter is the capability for the object to not be aligned on a straight
+// up and down axis.
+integer JITTER_EFFECT = TRUE;
+ // if this is true, then the rider will move unevenly at various angles.
+float CHANCE_FOR_JITTER = 0.60;
+ // this is the probability of changing the current direction (0.0 to 1.0).
+vector MIN_ANGULAR_POSITION = <0.0, 0.0, 0.0>; // minimum jitter amount, in degrees.
+vector MAX_ANGULAR_POSITION = <1.0, 1.0, 4.0>; // maximum jitter amount, in degrees.
+
+float TIMER_FREQUENCY = 0.20;
+ // this is the fastest that prim changes can happen anyhow,
+ // so we fire the timer at this rate.
+
+//////////////
+// 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.
+ llOwnerSay(llGetScriptName() + "--" + (string)debug_num + ": " + to_say);
+ // say this on open chat, but use an unusual channel.
+// llSay(108, llGetScriptName() + "--" + (string)debug_num + ": " + to_say);
+}
+
+// returns a number at most "maximum" and at least "minimum".
+// if "allow_negative" is TRUE, then the return may be positive or negative.
+float randomize_within_range(float minimum, float maximum, integer allow_negative)
+{
+ if (minimum > maximum) {
+ // flip the two if they are reversed.
+ float temp = minimum; minimum = maximum; maximum = temp;
+ }
+ float to_return = minimum + llFrand(maximum - minimum);
+ if (allow_negative) {
+ if (llFrand(1.0) < 0.5) to_return *= -1.0;
+ }
+ return to_return;
+}
+
+// returns a random vector where x,y,z will be between "minimums" and "maximums"
+// x,y,z components. if "allow_negative" is true, then any component will
+// randomly be negative or positive.
+vector random_bound_vector(vector minimums, vector maximums, integer allow_negative)
+{
+ return <randomize_within_range(minimums.x, maximums.x, allow_negative),
+ randomize_within_range(minimums.y, maximums.y, allow_negative),
+ randomize_within_range(minimums.z, maximums.z, allow_negative)>;
+}
+
+// returns a vector whose components are between minimum and maximum.
+// if allow_negative is true, then they can be either positive or negative.
+vector random_vector(float minimum, float maximum, integer allow_negative)
+{
+ return random_bound_vector(<minimum, minimum, minimum>,
+ <maximum, maximum, maximum>, allow_negative);
+}
+
+// returns TRUE if a is less than b in any component.
+integer vector_less_than(vector a, vector b)
+{ return (a.x < b.x) || (a.y < b.y) || (a.z < b.z); }
+
+// returns TRUE if a is greater than b in any component.
+integer vector_greater_than(vector a, vector b)
+{ return (a.x > b.x) || (a.y > b.y) || (a.z > b.z); }
+
+// returns a list with two components; a new vector and a boolean.
+// the new vector starts from "starting_point". it will have a vector
+// between "minimum_addition" and "maximum_addition" added to it.
+// if it is over the "minimum_allowed" or the "maximum_allowed", then
+// it is reset to whichever it would have crossed over. two booleans
+// are also returned to indicate when the lower and upper limits were
+// exceeded (in that order).
+list limit_and_add(vector starting_point,
+ vector minimum_allowed, vector maximum_allowed,
+ vector minimum_addition, vector maximum_addition)
+{
+ integer too_low = FALSE;
+ integer too_high = FALSE;
+ vector new_location = starting_point;
+ vector addition = random_bound_vector(minimum_addition, maximum_addition, FALSE);
+//log_it("start=" + (string)starting_point + " addin=" + (string)addition);
+ new_location += addition;
+ if (vector_less_than(new_location, minimum_allowed)) {
+ too_low = TRUE;
+ new_location = minimum_allowed;
+ } else if (vector_greater_than(new_location, maximum_allowed)) {
+ too_high = TRUE;
+ new_location = maximum_allowed;
+ }
+ return [ new_location, too_low, too_high ];
+}
+
+//////////////
+
+// variables used during the script.
+
+vector rez_position;
+ // set at time of object rez from object's current location.
+
+vector rez_rotation;
+ // set at time of object rez from object's current rotation.
+
+vector current_position_addin = <0.0, 0.0, 0.0>;
+ // the amount that we're adding to the rider's position right now.
+
+vector current_rotation_addin = <0.0, 0.0, 0.0>;
+ // randomly assigned to if JITTER_EFFECT is true.
+
+vector current_direction = <1.0, 1.0, 1.0>;
+ // we start out by adding to all axes.
+
+// provides a random vector that could be negative or positive for
+// any of the values. the range is given by the two constants
+// MIN_ADDITION and MAX_ADDITION.
+vector rando_vector()
+{
+ return random_bound_vector(MIN_ANGULAR_POSITION * DEG_TO_RAD,
+ MAX_ANGULAR_POSITION * DEG_TO_RAD, TRUE);
+}
+
+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();
+ rez_position = llGetPos();
+ rez_rotation = llRot2Euler(llGetRot());
+//vector calc_rot = rez_rotation * RAD_TO_DEG;
+//log_it("rotation at start is " + (string)calc_rot);
+ llSetTimerEvent(TIMER_FREQUENCY);
+ }
+
+ on_rez(integer parm) { llResetScript(); }
+
+ timer()
+ {
+ if (USE_X_AXIS) {
+ list add_result = limit_and_add(current_position_addin,
+ <MIN_POSITION, current_position_addin.y, current_position_addin.z>,
+ <MAX_POSITION, current_position_addin.y, current_position_addin.z>,
+ <current_direction.x * MIN_POSITION_ADJUSTMENT, 0.0, 0.0>,
+ <current_direction.x * MAX_POSITION_ADJUSTMENT, 0.0, 0.0>);
+ current_position_addin = llList2Vector(add_result, 0);
+ integer too_low = llList2Integer(add_result, 1);
+ integer too_high = llList2Integer(add_result, 2);
+ if (too_low) current_direction.x = 1.0;
+ else if (too_high) current_direction.x = -1.0;
+ }
+ if (USE_Y_AXIS) {
+ list add_result = limit_and_add(current_position_addin,
+ <current_position_addin.x, MIN_POSITION, current_position_addin.z>,
+ <current_position_addin.x, MAX_POSITION, current_position_addin.z>,
+ <0.0, current_direction.y * MIN_POSITION_ADJUSTMENT, 0.0>,
+ <0.0, current_direction.y * MAX_POSITION_ADJUSTMENT, 0.0>);
+ current_position_addin = llList2Vector(add_result, 0);
+ integer too_low = llList2Integer(add_result, 1);
+ integer too_high = llList2Integer(add_result, 2);
+ if (too_low) current_direction.y = 1.0;
+ else if (too_high) current_direction.y = -1.0;
+ }
+ if (USE_Z_AXIS) {
+ list add_result = limit_and_add(current_position_addin,
+ <current_position_addin.x, current_position_addin.y, MIN_POSITION>,
+ <current_position_addin.x, current_position_addin.y, MAX_POSITION>,
+ <0.0, 0.0, current_direction.z * MIN_POSITION_ADJUSTMENT>,
+ <0.0, 0.0, current_direction.z * MAX_POSITION_ADJUSTMENT>);
+ current_position_addin = llList2Vector(add_result, 0);
+ integer too_low = llList2Integer(add_result, 1);
+ integer too_high = llList2Integer(add_result, 2);
+ if (too_low) current_direction.z = 1.0;
+ else if (too_high) current_direction.z = -1.0;
+ }
+
+//logic below for randomness is a bit odd.
+ // change the jitter position if we get a chance.
+ float starter = 0.420; // where we start looking for change.
+ float change_cap = starter + CHANCE_FOR_JITTER;
+ float randomness = llFrand(1.000);
+ if ( (randomness <= change_cap) && (randomness >= starter) ) {
+ // time for a change in the rotation.
+ if (JITTER_EFFECT) {
+ current_rotation_addin = rando_vector();
+ }
+ }
+
+ llSetPrimitiveParams([
+ PRIM_POSITION, rez_position + current_position_addin,
+ PRIM_ROTATION, llEuler2Rot(rez_rotation + current_rotation_addin)
+ ]);
+
+ }
+}
+
projects / feisty_meow.git / blobdiff