diff --git a/.gitignore b/.gitignore index c40cd56..a349cbb 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,2 @@ .svn node_modules -jquery-turtle.min.js diff --git a/BUILD.txt b/BUILD.txt index 6208a91..c22f4af 100644 --- a/BUILD.txt +++ b/BUILD.txt @@ -29,5 +29,3 @@ Testing Unit tests use a headless webkit. When setting it up on a system without GUI, you may find that you need to install font support. On debian. "apt-get libfontconfig1" provides enough font support. - - diff --git a/LICENSE.txt b/LICENSE.txt index fca7187..f997494 100644 --- a/LICENSE.txt +++ b/LICENSE.txt @@ -2,7 +2,7 @@ jQuery-turtle version 2.0 LICENSE (MIT): -Copyright (c) 2013 Pencil Code Foundation, Google, and other contributors. +Copyright (c) 2013 Pencil Code Foundation, Google Inc., and other contributors. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal diff --git a/README.md b/README.md index 91bace6..fe5db8e 100644 --- a/README.md +++ b/README.md @@ -1,7 +1,7 @@ jQuery-turtle ============= -version 2.0.8 +version 2.0.9 jQuery-turtle is a jQuery plugin for turtle graphics. @@ -254,7 +254,7 @@ the functions:
 eval $.turtle()  # Create the default turtle and global functions.
 
-defaultspeed Infinity
+speed Infinity
 write "Catch blue before red gets you."
 bk 100
 r = hatch red
@@ -264,7 +264,7 @@ tick 10, ->
   fd 6
   r.turnto turtle
   r.fd 4
-  b.turnto bearing b
+  b.turnto direction b
   b.fd 3
   if b.touches(turtle)
     write "You win!"
@@ -331,7 +331,7 @@ element.
 License (MIT)
 -------------
 
-Copyright (c) 2014 Pencil Code, Google, and other contributors
+Copyright (c) 2014 Pencil Code, Google Inc., and other contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/bower.json b/bower.json
index f2e71d7..4eca85a 100644
--- a/bower.json
+++ b/bower.json
@@ -2,7 +2,7 @@
   "name": "jquery-turtle",
   "main": "jquery-turtle.js",
   "ignore": [],
-  "version": "2.0.8",
+  "version": "2.0.9",
   "description": "Turtle graphics plugin for jQuery.",
   "devDependencies": {
     "jquery": "latest",
diff --git a/jquery-turtle.js b/jquery-turtle.js
index 476916b..9008141 100644
--- a/jquery-turtle.js
+++ b/jquery-turtle.js
@@ -4,7 +4,7 @@
 jQuery-turtle
 =============
 
-version 2.0.8
+version 2.0.9
 
 jQuery-turtle is a jQuery plugin for turtle graphics.
 
@@ -261,7 +261,7 @@ the functions:
  eval $.turtle()  # Create the default turtle and global functions.
 
-defaultspeed Infinity
+speed Infinity
 write "Catch blue before red gets you."
 bk 100
 r = new Turtle red
@@ -772,7 +772,7 @@ function readTransformMatrix(elem) {
 // Reads out the css transformOrigin property, if present.
 function readTransformOrigin(elem, wh) {
   var hidden = ($.css(elem, 'display') === 'none'),
-      swapout, old, name, gcs, origin;
+      swapout, old, name;
   if (hidden) {
     // IE GetComputedStyle doesn't give pixel values for transformOrigin
     // unless the element is unhidden.
@@ -783,13 +783,13 @@ function readTransformOrigin(elem, wh) {
       elem.style[name] = swapout[name];
     }
   }
-  var gcs = (global.getComputedStyle ?  global.getComputedStyle(elem) : null),
-      origin = (gcs && gcs[transformOrigin] || $.css(elem, 'transformOrigin'));
+  var gcs = (global.getComputedStyle ?  global.getComputedStyle(elem) : null);
   if (hidden) {
     for (name in swapout) {
       elem.style[name] = old[name];
     }
   }
+  var origin = (gcs && gcs[transformOrigin] || $.css(elem, 'transformOrigin'));
   if (origin && origin.indexOf('%') < 0) {
     return $.map(origin.split(' '), parseFloat);
   }
@@ -960,7 +960,7 @@ function getTurtleOrigin(elem, inverseParent, extra) {
         { position: "absolute", visibility: "hidden", display: "block" } : {},
       substTransform = swapout[transform] = (inverseParent ? 'matrix(' +
           $.map(inverseParent, cssNum).join(', ') + ', 0, 0)' : 'none'),
-      old = {}, name, gbcr, transformOrigin, result;
+      old = {}, name, gbcr, transformOrigin;
   for (name in swapout) {
     old[name] = elem.style[name];
     elem.style[name] = swapout[name];
@@ -1250,7 +1250,7 @@ function scrollWindowToDocumentPosition(pos, limit) {
   if (tx < ww2) { tx = ww2; }
   if (ty > dh - wh2) { ty = dh - wh2; }
   if (ty < wh2) { ty = wh2; }
-  targ = { pageX: tx, pageY: ty };
+  var targ = { pageX: tx, pageY: ty };
   if ($.isNumeric(limit)) {
     targ = limitMovement(w.origin(), targ, limit);
   }
@@ -1504,6 +1504,8 @@ function writeTurtleTransform(ts) {
   return result.join(' ');
 }
 
+function modulo(n, m) { return (+n % (m = +m) + m) % m; }
+
 function radiansToDegrees(r) {
   var d = r * 180 / Math.PI;
   if (d > 180) { d -= 360; }
@@ -1511,7 +1513,7 @@ function radiansToDegrees(r) {
 }
 
 function convertToRadians(d) {
-  return d * Math.PI / 180;
+  return d / 180 * Math.PI;
 }
 
 function normalizeRotation(x) {
@@ -2176,8 +2178,7 @@ function touchesPixel(elem, color) {
       h = (bb.bottom - bb.top),
       osc = getOffscreenCanvas(w, h),
       octx = osc.getContext('2d'),
-      rgba = rgbaForColor(color),
-      j = 1, k, data;
+      j = 1, k;
   if (!c || c.length < 3 || !w || !h) { return false; }
   octx.drawImage(canvas,
       bb.left, bb.top, w, h, 0, 0, w, h);
@@ -2687,7 +2688,7 @@ function imgUrl(url) {
   if (/\//.test(url)) { return url; }
   url = '/img/' + url;
   if (isPencilHost(global.location.hostname)) { return url; }
-  return '//pencil.io' + url;
+  return '//pencilcode.net' + url;
 }
 // Retrieves the pencil code login cookie, if there is one.
 function loginCookie() {
@@ -2724,7 +2725,8 @@ var stablyLoadedImages = {};
 // @param css is a dictionary of css props to set when the image is loaded.
 // @param cb is an optional callback, called after the loading is done.
 function setImageWithStableOrigin(elem, url, css, cb) {
-  var record, urlobj = absoluteUrlObject(url), url = urlobj.href;
+  var record, urlobj = absoluteUrlObject(url);
+  url = urlobj.href;
   // The data-loading attr will always reflect the last URL requested.
   elem.setAttribute('data-loading', url);
   if (url in stablyLoadedImages) {
@@ -3030,7 +3032,7 @@ var Pencil = (function(_super) {
     }
     // The pencil is a sprite that just defaults to zero size.
     var context = canvas ? canvas.parentElement : null;
-    var settings = { width: 0, height: 0, color: transparent };
+    var settings = { width: 0, height: 0, color: 'transparent' };
     Pencil.__super__.constructor.call(this, settings, context);
     // Set the pencil to hidden, infinite speed,
     // and drawing on the specifed canvas.
@@ -3070,7 +3072,7 @@ var Webcam = (function(_super) {
   function Webcam(opts, context) {
     var attrs = "", hassrc = false, hasautoplay = false, hasdims = false;
     if ($.isPlainObject(opts)) {
-      for (key in opts) {
+      for (var key in opts) {
         attrs += ' ' + key + '="' + escapeHtml(opts[key]) + '"';
       }
       hassrc = ('src' in opts);
@@ -3315,12 +3317,12 @@ var Piano = (function(_super) {
 
   // Converts a midi number to a white key position (black keys round left).
   function wcp(n) {
-    return floor((n + 7) / 12 * 7);
+    return Math.floor((n + 7) / 12 * 7);
   };
 
   // Converts from a white key position to a midi number.
   function mcp(n) {
-    return ceil(n / 7 * 12) - 7;
+    return Math.ceil(n / 7 * 12) - 7;
   };
 
   // True if midi #n is a black key.
@@ -3726,7 +3728,7 @@ function forwardBodyMouseEventsIfNeeded() {
           var warn = $.turtle.nowarn;
           $.turtle.nowarn = true;
           var sel = $(globalDrawing.surface)
-              .find('.turtle').within('touch', e).eq(0);
+              .find('.turtle,.turtlelabel').within('touch', e).eq(0);
           $.turtle.nowarn = warn;
           if (sel.length === 1) {
             // Erase portions of the event that are wrong for the turtle.
@@ -3897,11 +3899,16 @@ function resetAudio() {
       atop.out = null;
       atop.currentStart = null;
     }
-    var dcn = atop.ac.createDynamicsCompressor();
-    dcn.ratio = 16;
-    dcn.attack = 0.0005;
-    dcn.connect(atop.ac.destination);
-    atop.out = dcn;
+    // If resetting due to interrupt after AudioContext closed, this can fail.
+    try {
+      var dcn = atop.ac.createDynamicsCompressor();
+      dcn.ratio = 16;
+      dcn.attack = 0.0005;
+      dcn.connect(atop.ac.destination);
+      atop.out = dcn;
+    } catch (e) {
+      getAudioTop.audioTop = null;
+    }
   }
 }
 
@@ -4238,7 +4245,8 @@ var Instrument = (function() {
         } else if (releasetime <= attacktime) {
           // Release before attack is done?  Interrupt ramp up.
           g.gain.linearRampToValueAtTime(
-            amp * (releasetime - starttime) / (attacktime - starttime));
+            amp * (releasetime - starttime) / (attacktime - starttime),
+            releasetime);
         } else {
           // Release during decay?  Interrupt decay down.
           g.gain.setValueAtTime(amp * (timbre.sustain + (1 - timbre.sustain) *
@@ -4510,7 +4518,7 @@ var Instrument = (function() {
         if (key in given) {
           timbre[key] = given[key];
         } else {
-          timbre[key] = defaulTimbre[key];
+          timbre[key] = defaultTimbre[key];
         }
       }
     }
@@ -4702,16 +4710,13 @@ var Instrument = (function() {
     return result;
   }
 
-  var whiteNoiseBuf = null;
   function getWhiteNoiseBuf() {
-    if (whiteNoiseBuf == null) {
-      var ac = getAudioTop().ac,
-          bufferSize = 2 * ac.sampleRate,
-          whiteNoiseBuf = ac.createBuffer(1, bufferSize, ac.sampleRate),
-          output = whiteNoiseBuf.getChannelData(0);
-      for (var i = 0; i < bufferSize; i++) {
-        output[i] = Math.random() * 2 - 1;
-      }
+    var ac = getAudioTop().ac,
+      bufferSize = 2 * ac.sampleRate,
+      whiteNoiseBuf = ac.createBuffer(1, bufferSize, ac.sampleRate),
+      output = whiteNoiseBuf.getChannelData(0);
+    for (var i = 0; i < bufferSize; i++) {
+      output[i] = Math.random() * 2 - 1;
     }
     return whiteNoiseBuf;
   }
@@ -5199,7 +5204,6 @@ function parseABCFile(str) {
   function syncopateStem(stem, t) {
     var j, note, stemtime = stem.time, newtime = stemtime + t;
     stem.time = newtime;
-    syncopateStem
     for (j = 0; j < stem.notes.length; ++j) {
       note = stem.notes[j];
       // Only adjust a note's duration if it matched the stem's duration.
@@ -5759,7 +5763,7 @@ function canElementMoveInstantly(elem) {
   // moving at speed Infinity.
   var atime;
   return (elem && $.queue(elem).length == 0 &&
-      !elem.parentElement.style.transform &&
+      (!elem.parentElement || !elem.parentElement.style.transform) &&
       ((atime = animTime(elem)) === 0 || $.fx.speeds[atime] === 0));
 }
 
@@ -5943,6 +5947,9 @@ function wrapglobalcommand(name, helptext, fn, fnfilter) {
       cc.exit();
     }
     if (early) {
+      if (early.result && early.result.constructor === jQuery && global_turtle) {
+        sync(global_turtle, early.result);
+      }
       return early.result;
     }
   };
@@ -6417,6 +6424,39 @@ function drawArrowLine(c, w, x0, y0, x1, y1) {
   drawArrowHead(c, m);
 }
 
+//////////////////////////////////////////////////////////////////////////
+// VOICE SYNTHESIS
+// Method for uttering words.
+//////////////////////////////////////////////////////////////////////////
+function utterSpeech(words, cb) {
+  var pollTimer = null;
+  function complete() {
+    if (pollTimer) { clearInterval(pollTimer); }
+    if (cb) { cb(); }
+  }
+  if (!global.speechSynthesis) {
+    console.log('No speech synthesis: ' + words);
+    complete();
+    return;
+  }
+  try {
+    var msg = new global.SpeechSynthesisUtterance(words);
+    msg.addEventListener('end', complete);
+    msg.addEventListener('error', complete);
+    msg.lang = navigator.language || 'en-GB';
+    global.speechSynthesis.speak(msg);
+    pollTimer = setInterval(function() {
+      // Chrome speech synthesis fails to deliver an 'end' event
+      // sometimes, so we also poll every 250ms.
+      if (global.speechSynthesis.pending || global.speechSynthesis.speaking) return;
+      complete();
+    }, 250);
+  } catch (e) {
+    if (global.console) { global.console.log(e); }
+    complete();
+  }
+}
+
 //////////////////////////////////////////////////////////////////////////
 // TURTLE FUNCTIONS
 // Turtle methods to be registered as jquery instance methods.
@@ -6866,34 +6906,13 @@ var turtlefn = {
     this.plan(function(j, elem) {
       cc.appear(j);
       this.queue(function(next) {
-        var finished = false,
-            pollTimer = null,
-            complete = function() {
-          if (finished) return;
-          clearInterval(pollTimer);
-          finished = true;
+        utterSpeech(words, function() {
           cc.resolve(j);
           next();
-        };
-        try {
-          var msg = new SpeechSynthesisUtterance(words);
-          msg.addEventListener('end', complete);
-          msg.addEventListener('error', complete);
-          speechSynthesis.speak(msg);
-          pollTimer = setInterval(function() {
-            // Chrome speech synthesis fails to deliver an 'end' event
-            // sometimes, so we also poll every 250ms.
-            if (speechSynthesis.pending || speechSynthesis.speaking) return;
-            complete();
-          }, 250);
-        } catch (e) {
-          if (global.console) { global.console.log(e); }
-          complete();
-        }
+        });
       });
     });
     return this;
-
   }),
   play: wrapcommand('play', 1,
   ["play(notes) Play notes. Notes are specified in " +
@@ -7089,13 +7108,13 @@ var turtlefn = {
     var intick = insidetick;
     return this.plan(function(j, elem) {
       cc.appear(j);
-      var applyStyles = {padding: 8},
+      var applyStyles = {},
           currentStyles = this.prop('style');
       // For defaults, copy inline styles of the turtle itself except for
       // properties in the following list (these are the properties used to
       // make the turtle look like a turtle).
-      for (var j = 0; j < currentStyles.length; ++j) {
-        var styleProperty = currentStyles[j];
+      for (var j2 = 0; j2 < currentStyles.length; ++j2) {
+        var styleProperty = currentStyles[j2];
         if (/^(?:width|height|opacity|background-image|background-size)$/.test(
           styleProperty) || /transform/.test(styleProperty)) {
           continue;
@@ -7114,6 +7133,10 @@ var turtlefn = {
       // Place the label on the screen using the figured styles.
       var out = prepareOutput(html, 'label').result.css(applyStyles)
           .addClass('turtlelabel').appendTo(getTurtleField());
+      // If the output has a turtleinput, then forward mouse events.
+      if (out.hasClass('turtleinput') || out.find('.turtleinput').length) {
+        mouseSetupHook.apply(out.get(0));
+      }
       if (styles && 'id' in styles) {
         out.attr('id', styles.id);
       }
@@ -7298,7 +7321,7 @@ var turtlefn = {
       if (typeof val != 'object' ||
           !$.isNumeric(val.width) || !$.isNumeric(val.height) ||
           !($.isArray(val.data) || val.data instanceof Uint8ClampedArray ||
-            val.data instanceof Unit8Array)) {
+            val.data instanceof Uint8Array)) {
         return;
       }
       var imdat = ctx.createImageData(
@@ -7509,7 +7532,6 @@ var turtlefn = {
         callback.apply(this, arguments);
       }
     });
-    sync = null;
   }),
   plan: wrapraw('plan',
   ["plan(fn) Runs fn in the animation queue. For planning logic: " +
@@ -7565,6 +7587,33 @@ var turtlefn = {
   })
 };
 
+//////////////////////////////////////////////////////////////////////////
+// QUEUING SUPPORT
+//////////////////////////////////////////////////////////////////////////
+
+function queueShowHideToggle() {
+  $.each(['toggle', 'show', 'hide'], function(i, name) {
+
+
+    var builtInFn = $.fn[name];
+    // Change show/hide/toggle to queue their behavior by default.
+    // Since animating show/hide will call the zero-argument
+    // form synchronously at the end of animation, we avoid
+    // infinite recursion by examining jQuery's internal fxshow
+    // state and avoiding the recursion if the animation is calling
+    // show/hide.
+    $.fn[name] = function(speed, easing, callback) {
+      var a = arguments;
+      // TODO: file a bug in jQuery to allow solving this without _data.
+      if (!a.length && this.hasClass('turtle') &&
+          (this.length > 1 || !$._data(this[0], 'fxshow'))) {
+        a = [0];
+      }
+      builtInFn.apply(this, a);
+    }
+  });
+}
+
 // If the queue for an image is empty, starts by queuing a wait-for-load.
 function queueWaitIfLoadingImg(img, qname) {
   if (!qname) qname = 'fx';
@@ -7579,6 +7628,10 @@ function queueWaitIfLoadingImg(img, qname) {
   }
 }
 
+//////////////////////////////////////////////////////////////////////////
+// HUNG LOOP DETECTION
+//////////////////////////////////////////////////////////////////////////
+
 var warning_shown = {},
     loopCounter = 0,
     hungTimer = null,
@@ -7687,7 +7740,7 @@ $.fn.extend(turtlefn);
 // * Sets up a global "hatch" function to make a new turtle.
 //////////////////////////////////////////////////////////////////////////
 
-var turtleGIFUrl = "data:image/gif;base64,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"
+var turtleGIFUrl = "data:image/gif;base64,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";
 
 var eventfn = { click:1, dblclick:1, mouseup:1, mousedown:1, mousemove:1 };
 
@@ -7817,6 +7870,20 @@ var dollar_turtle_methods = {
   function globalspeed(mps) {
     globaldefaultspeed(mps);
   }),
+  say: wrapraw('say',
+  ["say(words) Say something. Use English words." +
+      "say \"Let's go!\""],
+  function say(words) {
+    if (global_turtle) {
+      var sel = $(global_turtle);
+      sel.say.call(sel, words);
+    } else {
+      var cc = setupContinuation(null, 'say', arguments, 0);
+      cc.appear(null);
+      utterSpeech(words, function() { cc.resolve(null); });
+      cc.exit();
+    }
+  }),
   play: wrapraw('play',
   ["play(notes) Play notes. Notes are specified in " +
       "" +
@@ -7848,7 +7915,7 @@ var dollar_turtle_methods = {
       sel.tone.apply(sel, arguments);
     } else {
       var instrument = getGlobalInstrument();
-      instrument.play.apply(instrument, args);
+      instrument.play.apply(instrument);
     }
   }),
   silence: wrapraw('silence',
@@ -7887,7 +7954,6 @@ var dollar_turtle_methods = {
         callback.apply(this, arguments);
       }
     });
-    sync = null;
   }),
   load: wrapraw('load',
   ["load(url, cb) Loads data from the url and passes it to cb. " +
@@ -7923,7 +7989,8 @@ var dollar_turtle_methods = {
       "save 'intro', 'pen gold, 20\\nfd 100\\n'"],
   function(url, data, cb) {
     if (!url) throw new Error('Missing url for save');
-    var payload = { }, url = apiUrl(url, 'save'), key;
+    var payload = { }, key;
+    url = apiUrl(url, 'save');
     if (/\.json(?:$|\?|\#)/.test(url)) {
       data = JSON.stringify(data, null, 2);
     }
@@ -7997,12 +8064,16 @@ var dollar_turtle_methods = {
   readnum: wrapglobalcommand('readnum',
   ["readnum(html, fn) Reads numeric input. Only numbers allowed: " +
       "readnum 'Amount?', (v) -> write 'Tip: ' + (0.15 * v)"],
-  doOutput, function readnum(a, b) { return prepareInput(a, b, 1); }),
+  doOutput, function readnum(a, b) { return prepareInput(a, b, 'number'); }),
   readstr: wrapglobalcommand('readstr',
   ["readstr(html, fn) Reads text input. Never " +
       "converts input to a number: " +
       "readstr 'Enter code', (v) -> write v.length + ' long'"],
-  doOutput, function readstr(a, b) { return prepareInput(a, b, -1); }),
+  doOutput, function readstr(a, b) { return prepareInput(a, b, 'text'); }),
+  listen: wrapglobalcommand('listen',
+  ["listen(html, fn) Reads voice input, if the browser supports it:" +
+      "listen 'Say something', (v) -> write v"],
+  doOutput, function readstr(a, b) { return prepareInput(a, b, 'voice'); }),
   menu: wrapglobalcommand('menu',
   ["menu(map) shows a menu of choices and calls a function " +
       "based on the user's choice: " +
@@ -8119,41 +8190,129 @@ var dollar_turtle_methods = {
   ["abs(x) The absolute value of x. " +
       "see abs -5"], Math.abs),
   acos: wrapraw('acos',
-  ["acos(degreees) Trigonometric arccosine, in degrees. " +
-      "see acos 0.5"],
-  function acos(x) { return roundEpsilon(Math.acos(x) * 180 / Math.PI); }
-  ),
+  ["acos(x) Trigonometric arccosine, in radians. " +
+      "see acos 0.5"], Math.acos),
   asin: wrapraw('asin',
-  ["asin(degreees) Trigonometric arcsine, in degrees. " +
-      "see asin 0.5"],
-  function asin(x) { return roundEpsilon(Math.asin(x) * 180 / Math.PI); }
-  ),
+  ["asin(y) Trigonometric arcsine, in radians. " +
+      "see asin 0.5"], Math.asin),
   atan: wrapraw('atan',
-  ["atan(degreees) Trigonometric arctangent, in degrees. " +
+  ["atan(y, x = 1) Trigonometric arctangent, in radians. " +
       "see atan 0.5"],
-  function atan(x) { return roundEpsilon(Math.atan(x) * 180 / Math.PI); }
+  function atan(y, x) { return Math.atan2(y, (x == undefined) ? 1 : x); }
   ),
-  atan2: wrapraw('atan2',
-  ["atan2(degreees) Trigonometric two-argument arctangent, " +
-      "in degrees. see atan -1, 0"],
-  function atan2(x, y) {
-    return roundEpsilon(Math.atan2(x, y) * 180 / Math.PI);
-  }),
   cos: wrapraw('cos',
-  ["cos(degreees) Trigonometric cosine, in degrees. " +
-      "see cos 45"],
-  function cos(x) { return roundEpsilon(Math.cos((x % 360) * Math.PI / 180)); }
-  ),
+  ["cos(radians) Trigonometric cosine, in radians. " +
+      "see cos 0"], Math.cos),
   sin: wrapraw('sin',
-  ["sin(degreees) Trigonometric sine, in degrees. " +
-      "see sin 45"],
-  function sin(x) { return roundEpsilon(Math.sin((x % 360) * Math.PI / 180)); }
-  ),
+  ["sin(radians) Trigonometric sine, in radians. " +
+      "see sin 0"], Math.sin),
   tan: wrapraw('tan',
-  ["tan(degreees) Trigonometric tangent, in degrees. " +
-      "see tan 45"],
-  function tan(x) { return roundEpsilon(Math.tan((x % 360) * Math.PI / 180)); }
-  ),
+  ["tan(radians) Trigonometric tangent, in radians. " +
+      "see tan 0"], Math.tan),
+
+  // For degree versions of trig functions, make sure we return exact
+  // results when possible. The set of values we have to consider is
+  // fortunately very limited. See "Rational Values of Trigonometric
+  // Functions." http://www.jstor.org/stable/2304540
+
+  acosd: wrapraw('acosd',
+  ["acosd(x) Trigonometric arccosine, in degrees. " +
+      "see acosd 0.5"],
+   function acosd(x) {
+     switch (x) {
+       case   1: return   0;
+       case  .5: return  60;
+       case   0: return  90;
+       case -.5: return 120;
+       case  -1: return 180;
+     }
+     return Math.acos(x) * 180 / Math.PI;
+  }),
+  asind: wrapraw('asind',
+  ["asind(x) Trigonometric arcsine, in degrees. " +
+      "see asind 0.5"],
+  function asind(x) {
+    switch (x) {
+      case   1: return  90;
+      case  .5: return  30;
+      case   0: return   0;
+      case -.5: return -30;
+      case  -1: return -90;
+    }
+    return Math.asin(x) * 180 / Math.PI;
+  }),
+  atand: wrapraw('atand',
+  ["atand(y, x = 1) Trigonometric arctangent, " +
+      "in degrees. see atand -1, 0/mark>"],
+  function atand(y, x) {
+    if (x == undefined) { x = 1; }
+    if (y == 0) {
+      return (x == 0) ? NaN : ((x > 0) ? 0 : 180);
+    } else if (x == 0) {
+      return (y > 0) ? Infinity : -Infinity;
+    } else if (Math.abs(y) == Math.abs(x)) {
+      return (y > 0) ? ((x > 0) ? 45 : 135) :
+                       ((x > 0) ? -45 : -135);
+    }
+    return Math.atan2(y, x) * 180 / Math.PI;
+  }),
+  cosd: wrapraw('cosd',
+  ["cosd(degrees) Trigonometric cosine, in degrees. " +
+      "see cosd 45"],
+  function cosd(x) {
+    x = modulo(x, 360);
+    if (x % 30 === 0) {
+      switch ((x < 0) ? x + 360 : x) {
+        case   0: return   1;
+        case  60: return  .5;
+        case  90: return   0;
+        case 120: return -.5;
+        case 180: return  -1;
+        case 240: return -.5;
+        case 270: return   0;
+        case 300: return  .5;
+      }
+    }
+    return Math.cos(x / 180 * Math.PI);
+  }),
+  sind: wrapraw('sind',
+  ["sind(degrees) Trigonometric sine, in degrees. " +
+      "see sind 45"],
+  function sind(x) {
+    x = modulo(x, 360);
+    if (x % 30 === 0) {
+      switch ((x < 0) ? x + 360 : x) {
+        case   0: return   0;
+        case  30: return  .5;
+        case  90: return   1;
+        case 150: return  .5;
+        case 180: return   0;
+        case 210: return -.5;
+        case 270: return  -1;
+        case 330: return -.5;
+      }
+    }
+    return Math.sin(x / 180 * Math.PI);
+  }),
+  tand: wrapraw('tand',
+  ["tand(degrees) Trigonometric tangent, in degrees. " +
+      "see tand 45"],
+  function tand(x) {
+    x = modulo(x, 360);
+    if (x % 45 === 0) {
+      switch ((x < 0) ? x + 360 : x) {
+        case   0: return 0;
+        case  45: return 1;
+        case  90: return Infinity;
+        case 135: return -1;
+        case 180: return 0;
+        case 225: return 1;
+        case 270: return -Infinity;
+        case 315: return -1
+      }
+    }
+    return Math.tan(x / 180 * Math.PI);
+  }),
   ceil: wrapraw('ceil',
   ["ceil(x) Round up. " +
       "see ceil 1.9"], Math.ceil),
@@ -8328,14 +8487,12 @@ var colors = [
 
 $.turtle = function turtle(id, options) {
   var exportedsee = false;
-  if (!arguments.length) {
-    id = 'turtle';
-  }
   if (arguments.length == 1 && typeof(id) == 'object' && id &&
       !id.hasOwnProperty('length')) {
     options = id;
     id = 'turtle';
   }
+  id = id || 'turtle';
   options = options || {};
   if ('turtle' in options) {
     id = options.turtle;
@@ -8358,15 +8515,15 @@ $.turtle = function turtle(id, options) {
       parseFloat(options.hangtime) : 20000;
 
   // Set up global events.
-  if (!('events' in options) || options.events) {
+  if (options.events !== false) {
     turtleevents(options.eventprefix);
   }
-  if (!('pressed' in options) || options.pressed) {
+  if (options.pressed !== false) {
     addKeyEventHooks();
     pressedKey.enable(true);
   }
   // Set up global log function.
-  if (!('see' in options) || options.see) {
+  if (options.see !== false) {
     exportsee();
     exportedsee = true;
     if (global.addEventListener) {
@@ -8375,10 +8532,16 @@ $.turtle = function turtle(id, options) {
       global.onerror = see;
     }
     // Set up an alias.
-    global.log = see;
+    global.debug = see;
+    // 'debug' should be used now instead of log
+    deprecate(global, 'log', 'debug');
   }
+  if (options.queuehide !== false) {
+    queueShowHideToggle();
+  }
+
   // Copy $.turtle.* functions into global namespace.
-  if (!('functions' in options) || options.functions) {
+  if (options.functions !== false) {
     global.printpage = global.print;
     $.extend(global, dollar_turtle_methods);
   }
@@ -8405,11 +8568,11 @@ $.turtle = function turtle(id, options) {
   }
   if (selector && !selector.length) { selector = null; }
   // Globalize selected jQuery methods of a singleton turtle.
-  if (selector && selector.length === 1 &&
-      (!('global' in options) || options.global)) {
+  if (selector && selector.length === 1 && (options.global !== false)) {
     var extraturtlefn = {
       css:1, fadeIn:1, fadeOut:1, fadeTo:1, fadeToggle:1,
-      animate:1, toggle:1, finish:1, promise:1, direct:1 };
+      animate:1, toggle:1, finish:1, promise:1, direct:1,
+      show:1, hide:1 };
     var globalfn = $.extend({}, turtlefn, extraturtlefn);
     global_turtle_methods.push.apply(global_turtle_methods,
        globalizeMethods(selector, globalfn));
@@ -8418,14 +8581,14 @@ $.turtle = function turtle(id, options) {
     selector.css({zIndex: 1});
   }
   // Set up global objects by id.
-  if (!('ids' in options) || options.ids) {
+  if (options.ids !== false) {
     turtleids(options.idprefix);
     if (selector && id) {
       global[id] = selector;
     }
   }
   // Set up test console.
-  if (!('panel' in options) || options.panel) {
+  if (options.panel !== false) {
     var seeopt = {
       title: 'test panel (type help for help)',
       abbreviate: [undefined, helpok],
@@ -8439,12 +8602,6 @@ $.turtle = function turtle(id, options) {
       seeopt.height = options.panelheight;
     }
     see.init(seeopt);
-    if (wrotebody) {
-       /*
-       see.html('Turtle script should be inside body ' +
-                '- wrote a <body>');
-       */
-    }
     // Return an eval loop hook string if 'see' is exported.
     if (exportedsee) {
       if (global.CoffeeScript) {
@@ -8454,9 +8611,11 @@ $.turtle = function turtle(id, options) {
       }
     }
   }
+  return $('#' + id);
 };
 
 $.extend($.turtle, dollar_turtle_methods);
+$.turtle.colors = colors;
 
 function seehelphook(text, result) {
   // Also, check the command to look for (non-CoffeeScript) help requests.
@@ -8885,7 +9044,7 @@ function nameToImg(name, defaultshape) {
     // Deal with unquoted "tan" and "dot".
     name = name.helpname || name.name;
   }
-  if (name.constructor === $) {
+  if (name.constructor === jQuery) {
     // Unwrap jquery objects.
     if (!name.length) { return null; }
     name = name.get(0);
@@ -8916,6 +9075,10 @@ function nameToImg(name, defaultshape) {
   if (shape) {
     return shape(color);
   }
+  // Default to '/img/' URLs if it doesn't match a well-known name.
+  if (!/\//.test(name)) {
+    name = imgUrl(name);
+  }
   // Parse URLs.
   if (/\//.test(name)) {
     var hostname = absoluteUrlObject(name).hostname;
@@ -8959,11 +9122,11 @@ function hatchone(name, container, defaultshape) {
 
   // Create an image element with the requested name.
   var result;
-  if (img) {
+  if (isTag) {
+    result = $(name);
+  } else if (img) {
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