var board, planchette;    // DHTML layers.



var boardY, boardY;       // Coordinates.

var nextX, nextY;

var saveX, saveY;

var posX, posY;



var offsetX = 62;         // Offset of viewport on planchette.

var offsetY = 62;



var inReply   = false;    // Status flags.

var inContact = false;



var answer = "";          // Response to spell out.

var nextChar;             // Next character to move to.



var step = 10;            // Used for movement.

var angle;



// Board positions, each letter and number has position. In addition, other

// symbols are used for other areas of the board:

// ! = 'yes'

// ~ = 'no'

// ^ = 'goodbye'

// _ = rest position

// and a space is a blank spot on the board.



var chars = "abcdefghijklmnopqrstuvwxyz1234567890!~^_ ";



// Set up character positions.



posX = new Array(105, 134, 171, 204, 240, 270, 305, 340, 372, 389, 420, 452, 484,

                 114, 151, 182, 217, 249, 274, 300, 331, 365, 399, 436, 466, 492,

                 154, 184, 217, 251, 281, 314, 346, 378, 410, 441,

                 137, 465, 300, 300, 300);

posY = new Array(182, 161, 145, 134, 126, 123, 124, 125, 130, 140, 146, 155, 175,

                 223, 202, 190, 181, 174, 171, 169, 172, 174, 185, 199, 211, 231,

                 280, 280, 280, 280, 280, 280, 280, 280, 280, 280,

                 054, 054, 350, 140, 215);



//-----------------------------------------------------------------------------

// Initialize everything.

//-----------------------------------------------------------------------------



function init() {



  var i;



  // Initialize planchette.



  board = getImage("board");

  boardX = getImagePageLeft(board);

  boardY = getImagePageTop(board);



  planchette = getLayer("planchette");

  i = chars.indexOf("_");

  moveLayerTo(planchette, boardX + posX[i] - offsetX, boardY + posY[i] - offsetY);

  showLayer(planchette);

}



//-----------------------------------------------------------------------------

// These functions handle the movement of the planchette when revealing a

// response.

//-----------------------------------------------------------------------------



function handsOn() {



  inContact = true;

}



function handsOff() {



  inContact = false;

  if (inReply) {

    saveX = getLeft(planchette);

    saveY = getTop(planchette);

    shakePlanchette();

  }

}



function startReply() {



  // Start revealing an answer.



  answer += "_";

  if (!inContact) {

    saveX = getLeft(planchette);

    saveY = getTop(planchette);

    shakePlanchette();

  }

  if (getNext()) {

    inReply = true;

    movePlanchette();

  }

  else

    inReply = false;

}



function endReply() {



  // Done revealing answer.



  nextChar = "";

  inReply = false;

  inContact  = false;

}



function getNext() {



  var i;



  // Find the next character to move to.



  if (answer == "")

    return false;



  nextChar = answer.substr(0, 1)

  answer = answer.substr(1);

  for (i = 0; i < chars.length; i++)

    if (chars.charAt(i) == nextChar) {

      nextX = posX[i];

      nextY = posY[i];

      return true;

    }



  return false;

}



function movePlanchette() {



  var i, dx, dy, last, theta;



  // If no reply to give, return.



  if (!inReply)

    return;



  // If mouse is on planchette, move it.



  if (inContact) {



    // Move planchette toward the designated character.



    dx = boardX + nextX - getLeft(planchette) - offsetX;

    dy = boardY + nextY - getTop(planchette) - offsetY;

    theta = Math.round(Math.atan2(-dy, dx) * 180 / Math.PI);

    if (theta < 0)

      theta += 360;



    // If we reached the character, pause and start on the next one.



    if (Math.abs(dx) < step && Math.abs(dy) < step) {

      moveLayerBy(planchette, dx, dy);

      last = nextChar;



      // Circle if next character is the same as the last.



      if (getNext()) {

        if (nextChar == last) {

          angle = 0;

          setTimeout('circlePlanchette()', 2000);

          return;

        }

        setTimeout('movePlanchette()', 2000);

        return

      }



      // End movement if no more characters in reply.



      else

        endReply();

    }



    // If not, move it.



    else if (theta > 23 && theta <= 68)

      moveLayerBy(planchette, step, -step);

    else if (theta > 68 && theta <= 113)

      moveLayerBy(planchette, 0, -step);

    else if (theta > 113 && theta <= 158)

      moveLayerBy(planchette, -step, -step);

    else if (theta > 158 && theta <= 203)

      moveLayerBy(planchette, -step, 0);

    else if (theta > 203 && theta <= 248)

      moveLayerBy(planchette, -step, step);

    else if (theta > 248 && theta <= 293)

      moveLayerBy(planchette, 0, step);

    else if (theta > 293 && theta <= 338)

      moveLayerBy(planchette, step, step);

    else

      moveLayerBy(planchette, step, 0);

  }



  // Set up next call.



  setTimeout('movePlanchette()', 50);

  return;

}



function circlePlanchette() {



  var x, y;



  // Mouse on planchette?



  if (!inContact) {

    setTimeout('circlePlanchette()', 50);

    return;

  }



  // Move the planchette in a small circle.



  x = getLeft(planchette) + step * Math.cos(angle);

  y = getTop(planchette) - step * Math.sin(angle);

  moveLayerTo(planchette, x, y);

  angle += Math.PI / 10;

  if (angle < 2 * Math.PI)

    setTimeout('circlePlanchette()', 50);

  else

    movePlanchette();

}



function shakePlanchette() {



  var dx, dy, x, y;



  // Mouse on planchette?



  if (inContact)

    return;



  // Randomly move planchette around it's original position.



  dx = Math.floor(Math.random() * 5) - 2;

  dy = Math.floor(Math.random() * 5) - 2;

  x = saveX + dx;

  y = saveY + dy;

  moveLayerTo(planchette, x, y);

  setTimeout('shakePlanchette()', 50);

}



//-----------------------------------------------------------------------------

// This code handles the analysis of a question and generates an answer.

//-----------------------------------------------------------------------------



// Lists of responses by category.



var none = new Array("questionnez", "demandez", "je suis la", "n hesitez pas", "parlez",

                     "parlez moi", "j ecoute", "j attend");

var days = new Array("dimanche", "lundi", "mardi", "mercredi", "jeudi",

                     "vendredi", "samedi");

var months = new Array("janvier", "fevrier", "mars", "avril", "mai", "juin",

                       "juillet", "aout", "septembre", "octobre", "novembre",

                       "decembre");

var seasons = new Array("printemps", "ete", "automne", "hiver");

var times = new Array("jamais", "bientot", "tres bientot", "demain", "semaine prochaine",

                      "pas maintenant", "plus tard", "a temps", "pas pret");

var people = new Array("amis", "etranger", "vous", "personne", "quelqu un");

var places = new Array("tres loin", "proche", "tres proche", "nouvel endroit",

                       "pas ici");

var other = new Array("ne doit pas dire", "ne peut pas dire", "etrange", "questionnez plus tard",

                      "inconnu", "ne vois pas", "peut etre plus tard", "hasardeux",

                      "trop sombre", "incomprehensible", "pas clair");



function consult() {



  var question, words, r;

  var i, today;



  // Make up and answer based on keywords in the question.



  inContact = false;

  question = document.forms[0].elements[0].value;

  question = clean(question);

  words = question.split(" ");

  r = Math.random();



  // No question?



  if (question == "") {

    answer = pickFromList(none);

    startReply();

    return false;

  }



  // Look for two words surrounding 'or' and pick one at random.



  if (words.length >= 3)

    for (i = 0; i < words.length - 3; i++)

      if (words[i + 1] == "et") {

        if (r < .5)

          answer = words[i];

        else

          answer = words[i + 2];

        startReply();

        return false;

      }



  // At random, give a ambiguous answer.



  if (r < .1)

    answer = pickFromList(other);



  // Time related question?



  else if (inList(words, "jour")) {         // Pick a random day.

    if (r < .7)

      answer = pickFromList(days);

    else

      answer = pickFromList(times);

  }

  else if (inList(words, "mois")) {    // Pick a random month.

    if (r < .7)

      answer = pickFromList(months);

    else

      answer = pickFromList(times);

  }

  else if (inList(words, "temps"))            // Pick random time.

    answer = Math.floor(Math.random() * 12) + 1;

  else if (inList(words, "quand")) {          // Pick a random time.

    if (r < .3)

      answer = pickFromList(days);

    if (r < .4)

      answer = pickFromList(months);

    if (r < .5)

      answer = pickFromList(seasons);

    else

      answer = pickFromList(times);

  }



  // Asking for a number?



  else if (inList(words, "combien") &&

      (inList(words, "peu") ||

       inList(words, "assez") ||

       inList(words, "beaucoup") ||

       inList(words, "trop"))) {

    answer = Math.round(Math.random() * 10) + 1;    // Give a one or two digit

    if (answer != 10 && r < .5)                     // random number.

      answer += Math.round(Math.random() * 10);

  }



  // Asking about a person?



  else if (inList(words, "qui"))

    answer = pickFromList(people);



  // Asking about a place?



  else if (inList(words, "ou"))

    answer = pickFromList(places);



  // Asking about a thing?



  else if (inList(words, "quel"))

    answer = pickFromList(other);



  // Yes or no question?



  else if (inList(words, "suis") ||

           inList(words, "est") ||

           inList(words, "sont") ||

           inList(words, "doit") ||

           inList(words, "puis") ||

           inList(words, "font") ||

           inList(words, "peux") ||

           inList(words, "peuvent") ||

           inList(words, "faire") ||

           inList(words, "veux") ||

           inList(words, "vont") ||

           inList(words, "veulent")) {

    if (r < .5)

      answer = "!";

    else

      answer = "~";

  }



  // All else failed, give a nice, ambiguous answer.



  if (answer == "")

    answer = pickFromList(other);

  startReply();

  return false;

}



function clean(s) {



  var i, c, t;

  var letters = "abcdefghijklmnopqrstuvwxyz";



  // Convert string to lower case.



  t = s.toLowerCase();



  // Expand any contractions.



  s = "";

  for (i = 0; i < t.length; i++) {

    if (t.substr(i, 2) == "'s") {

      s += " is";

      i++;

    }

    else if (t.substr(i, 2) == "'t") {

      s += " not";

      i++;

    }

    else if (t.substr(i, 3) == "'ll") {

      s += " will";

      i += 2;

    }

    else

      s += t.substr(i, 1);

  }



  // Replace any non-letters with spaces.



  t = "";

  for (i = 0; i < s.length; i++) {

    c = s.substr(i, 1);

    if (letters.indexOf(c) >= 0)

      t += c;

    else

      t += " ";

  }

  return t;

}



function inList(list, word) {



  var i;



  // Return true if the given word is in the list.



  for (i = 0; i < list.length; i++)

    if (list[i] == word)

      return true;

  return false;

}



function pickFromList(list) {



  var r;



  // Return a random word from a list.



  r = Math.floor(Math.random() * list.length);

  return list[r];

}