/**
* @author djohnston
*/
var yesEL = null;
var noEL = null;
var qNum = 0;
function setupQuiz(mol) {
var done = false;
qNum = 1;
if (yesEL !== null) { Event.stopObserving('yes', 'click', yesEL); }
if (noEL !== null) { Event.stopObserving('no', 'click', noEL); }
yesEL = checkAnswer.bindAsEventListener(mol);
noEL = checkAnswer.bindAsEventListener(mol);
Event.observe('yes', 'click', yesEL);
Event.observe('no', 'click', noEL);
$('flowchart').undoPositioned();
$('feedback').innerHTML = "";
new Effect.MoveBy('flowchart', 115, 20, {duration:0});
new Effect.MoveBy('flowchart', -250, 0, {queue: 'end', beforeStart: hideButtons, afterFinish: showButtons});
}
function showButtons()
{
$('yesButton').show();
$('noButton').show();
}
function hideButtons()
{
$('yesButton').hide();
$('noButton').hide();
}
function checkAnswer()
{
var done = false;
var response = arguments[0].target.id;
var correctAnswer = t[qNum](this);
var qaFlag = 0;
if (response == correctAnswer)
qaFlag += 1;
if (correctAnswer == 'yes') { // the correct answer is YES
qaFlag += 2;
if (isString(q[qNum].yes(this))) // the (yes) result is a point group
qaFlag += 4; }
else {
if (isString(q[qNum].no(this))) // the (no) result is a point group
qaFlag += 4; }
switch (qaFlag) {
case 0: // incorrect response, answer = no, next = question
case 4: // incorrect response, answer = no, next = point group
$('feedback').innerHTML = 'That is not correct.';
new Effect.Shake('flowchart', {distance:3});
break;
case 1: // correct response, answer = no, next = question
var nextQuestion = q[qNum].no(this);
var dx = q[qNum].x - q[nextQuestion].x;
var dy = q[qNum].y - q[nextQuestion].y;
qNum = nextQuestion;
$('feedback').innerHTML = 'That is correct.';
new Effect.MoveBy('flowchart', dy, dx, {beforeStart: hideButtons, afterFinish: showButtons});
break;
case 2: // incorrect response, answer = yes, next = question
case 6: // incorrect response, answer = yes, next = point group
$('feedback').innerHTML = "Incorrect";
h[qNum](this);
new Effect.Shake('flowchart', {distance:3});
break;
case 3: // correct response, answer = yes, next = question
var nextQuestion = q[qNum].yes(this);
var dx = q[qNum].x - q[nextQuestion].x;
var dy = q[qNum].y - q[nextQuestion].y;
$('feedback').innerHTML = "Correct";
h[qNum](this);
new Effect.MoveBy('flowchart', dy, dx, {beforeStart: hideButtons, afterFinish: showButtons});
qNum = nextQuestion;
break;
case 5: // correct response, answer = no, next = point group
$('feedback').innerHTML = "Correct - the point group is " + q[qNum].no(this) + ".";
new Effect.MoveBy('flowchart', -180, 0, {beforeStart: hideButtons});
done = true;
break;
case 7: // correct response, answer = yes, next = point group
$('feedback').innerHTML = "Correct";
h[qNum](this);
$('feedback').innerHTML += " The point group is " + q[qNum].yes(this) + ".";
new Effect.MoveBy('flowchart', 0, -271, {beforeStart: hideButtons});
done = true;
break;
default:
done = true;
break;
}
if (done) {
Event.stopObserving('yes', 'click', yesEL); // turn off buttons
Event.stopObserving('no', 'click', noEL);
}
}
var q = []; // array of questions
var t = []; // array of test functions (return true for yes, false for no)
var h = []; // array of highlight functions
q[0] = {
"text" : function(mol) { return "Molecular Structure"; }
};
q[1] = {
"text" : function(mol) { return "Is the molecule linear?"; },
"yes" : function(mol) { return 2; },
"no" : function(mol) { return 3; },
"x" : 111,
"y" : 259
}
t[1] = function(mol) { return 'no'; } // we don't have any linear molecules!
q[2] = {
"text" : function(mol) { return "Does the molecule contain an inversion center?"; },
"yes" : function(mol) { return "D∞h"; },
"no" : function(mol) { return "C∞v"; },
"x" : 435,
"y" : 259
}
t[2] = function(mol) {
if (mol.ea.inversion0 != null)
return 'yes';
else
return 'no';
}
q[3] = {
"text" : function(mol) { return "Does the molecule contain two or more unique C3 axes?"; },
"yes" : function(mol) { return 4; },
"no" : function(mol) { return 10; },
"x" : 111,
"y" : 583
}
t[3] = function(mol) {
try {
var n3 = 0;
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 3)
n3 += 1;
if (n3 > 2)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[3] = function(mol) {
var axisCount = 0;
for (var i = 0; i < mol.properArray.length; i++) {
if (mol.ea["proper" + i].elementData.order == 3) {
axisCount += 1;
jmolScript(mol.ea["proper" + i].showElementString);
}
}
$('feedback').innerHTML += " - there are " + axisCount + " unique C3 axes.";
}
q[4] = {
"text" : function(mol) { return "Does the molecule contain two or more unique C5 axes?"; },
"yes" : function(mol) { return 5; },
"no" : function(mol) { return 6; },
"x" : 435,
"y" : 583
}
t[4] = function(mol) {
try {
var n5 = 0;
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 5)
n5 += 1;
if (n5 > 2)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[4] = function(mol) {
var axisCount = 0;
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 3)
jmolScript(mol.ea["proper" + i].hideElementString);
for (var i = 0; i < mol.properArray.length; i++) {
if (mol.ea["proper" + i].elementData.order == 5) {
axisCount += 1;
jmolScript(mol.ea["proper" + i].showElementString);
}
}
$('feedback').innerHTML += " - there are " + axisCount + " unique C5 axes.";
}
q[5] = {
"text" : function(mol) { return "Does the molecule contain an inversion center?"; },
"yes" : function(mol) { return "Ih"; },
"no" : function(mol) { return "I"; },
"x" : 759,
"y" : 583
}
t[5] = function(mol) {
try {
if (mol.ea.inversion0 != null)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[5] = function(mol) {
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 5)
jmolScript(mol.ea["proper" + i].hideElementString);
jmolScript(mol.ea.inversion0.showElementString);
$('feedback').innerHTML += " - the molecule contains an inversion center.";
}
q[6] = {
"text" : function(mol) { return "Does the molecule contain two or more unique C4 axes?"; },
"yes" : function(mol) { return 7; },
"no" : function(mol) { return 8; },
"x" : 435,
"y" : 907
}
t[6] = function(mol) {
try {
var n4 = 0;
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 4)
n4 += 1;
if (n4 > 2)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[6] = function(mol) {
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 3)
jmolScript(mol.ea["proper" + i].hideElementString);
var axisCount = 0;
for (var i = 0; i < mol.properArray.length; i++) {
if (mol.ea["proper" + i].elementData.order == 4) {
axisCount += 1;
jmolScript(mol.ea["proper" + i].showElementString);
}
}
$('feedback').innerHTML += " - there are " + axisCount + " unique C4 axes.";
}
q[7] = {
"text" : function(mol) { return "Does the molecule contain an inversion center?"; },
"yes" : function(mol) { return "Oh"; },
"no" : function(mol) { return "O"; },
"x" : 759,
"y" : 907
}
t[7] = function(mol) {
if (mol.ea.inversion0 != null)
return 'yes';
else
return 'no';
}
h[7] = function(mol) {
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 4)
jmolScript(mol.ea["proper" + i].hideElementString);
jmolScript(mol.ea.inversion0.showElementString);
$('feedback').innerHTML += " - the molecule contains an inversion center.";
}
q[8] = {
"text" : function(mol) { return "Does the molecule contain one or more reflection planes?"; },
"yes" : function(mol) { return 9; },
"no" : function(mol) { return "T"; },
"x" : 435,
"y" : 1231
}
t[8] = function(mol) {
try {
if (mol.reflectionArray.length > 1)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[8] = function(mol) {
for (var i = 0; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 3)
jmolScript(mol.ea["proper" + i].hideElementString);
var planeCount = 0;
for (var i = 0; i < mol.reflectionArray.length; i++) {
planeCount +=1;
jmolScript(mol.ea["reflection" + i].showElementString);
}
$('feedback').innerHTML += " - there are " + planeCount + " reflection planes.";
}
q[9] = {
"text" : function(mol) { return "Does the molecule contain an inversion center?"; },
"yes" : function(mol) { return "Th"; },
"no" : function(mol) { return "Td"; },
"x" : 759,
"y" : 1231
}
t[9] = function(mol) {
if (mol.ea.inversion0 != null)
return 'yes';
else
return 'no';
}
h[9] = function(mol) {
for (var i = 0; i < mol.reflectionArray.length; i++)
jmolScript(mol.ea["reflection" + i].hideElementString);
jmolScript(mol.ea.inversion0.showElementString);
$('feedback').innerHTML += " - the molecule contains an inversion center.";
}
q[10] = {
"text" : function(mol) { return "Does the molecule contain a proper rotation axes (Cn)?"; },
"yes" : function(mol) { return 11; },
"no" : function(mol) { return 13; },
"x" : 111,
"y" : 1555
}
t[10] = function(mol) {
try {
if (mol.ea["proper0"] != null)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[10] = function(mol) {
jmolScript(mol.ea.proper0.showElementString);
var order = mol.ea["proper0"].elementData.order;
$('feedback').innerHTML += " - the molecule contains a C" + order + " axis.";
}
q[11] = {
"text" : function(mol) { return "Identify the highest order Cn. Are there n perpendicular C2 axes?"; },
"yes" : function(mol) { return 12; },
"no" : function(mol) { return 14; },
"x" : 759,
"y" : 1555
}
t[11] = function(mol) {
try {
var order = mol.ea["proper0"].elementData.order;
if (mol.ea["proper" + order].elementData.order == 2)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[11] = function(mol) {
jmolScript(mol.ea.proper0.hideElementString);
var axisCount = 0; var start = 1;
var order = mol.ea["proper0"].elementData.order;
if (order == 4) start = 2; // skip extra C2 axis
if (order == 6) start = 3;
if (order == 8) start = 3;
for (var i = start; i < mol.properArray.length; i++) {
if (mol.ea["proper" + i].elementData.order == 2) {
axisCount += 1;
jmolScript(mol.ea["proper" + i].showElementString); }
}
$('feedback').innerHTML += " - the molecule contains " + axisCount + " C2 axes perpendicular to a C" + order + " axis.";
}
q[12] = {
"text" : function(mol) { return "Does the molecule contain a horizontal reflection plane (σh)?"; },
"yes" : function(mol) {
var n = mol.ea["proper0"].elementData.order;
return "D"+ n + "h"; },
"no" : function(mol) { return 15; },
"x" : 1407,
"y" : 1555
}
t[12] = function(mol) {
var present = false;
for (var i = 0; i < mol.reflectionArray.length; i++) {
if ((mol.reflectionArray[i].label == 'h') || (mol.reflectionArray[i].label == 'xy'))
present = true;
}
if (present)
return 'yes';
else
return 'no';
}
h[12] = function(mol) {
for (var i = 1; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 2)
jmolScript(mol.ea["proper" + i].hideElementString);
for (var i = 0; i < mol.reflectionArray.length; i++)
if ((mol.reflectionArray[i].label == 'h') || (mol.reflectionArray[i].label == 'xy'))
jmolScript(mol.ea["reflection" + i].showElementString);
$('feedback').innerHTML += " - the molecule contains a horizontal reflection plane (σh).";
}
q[13] = {
"text" : function(mol) { return "Does the molecule contain a reflection plane?"; },
"yes" : function(mol) { return "Cs"; },
"no" : function(mol) { return 16; },
"x" : 111,
"y" : 1879
}
t[13] = function(mol) {
try {
if (mol.ea.reflection0 != null)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[13] = function(mol) {
jmolScript(mol.ea.reflection0.showElementString);
$('feedback').innerHTML += " - the molecule contains a reflection plane (σ).";
}
q[14] = {
"text" : function(mol) { return "Does the molecule contain a horizontal reflection plane (σh)?"; },
"yes" : function(mol) {
var n = mol.ea["proper0"].elementData.order;
return "C"+ n + "h"; },
"no" : function(mol) { return 17; },
"x" : 759,
"y" : 1879
}
t[14] = function(mol) {
var present = false;
for (var i = 0; i < mol.reflectionArray.length; i++) {
if ((mol.reflectionArray[i].label == 'h') || (mol.reflectionArray[i].label == 'xy'))
present = true;
}
if (present)
return 'yes';
else
return 'no';
}
h[14] = function(mol) {
jmolScript(mol.ea.proper0.hideElementString);
for (var i = 0; i < mol.reflectionArray.length; i++)
if ((mol.reflectionArray[i].label == 'h') || (mol.reflectionArray[i].label == 'xy'))
jmolScript(mol.ea["reflection" + i].showElementString);
$('feedback').innerHTML += " - the molecule contains a horizontal reflection plane (σh).";
}
q[15] = {
"text" : function(mol) { return "Does the molecule contain n dihedral reflection planes (σd)?"; },
"yes" : function(mol) {
var n = mol.ea["proper0"].elementData.order;
return "D"+ n + "d"; },
"no" : function(mol) {
var n = mol.ea["proper0"].elementData.order;
return "D"+ n + ""; },
"x" : 1407,
"y" : 1879
}
t[15] = function(mol) {
var present = false;
for (var i = 0; i < mol.reflectionArray.length; i++)
if (mol.reflectionArray[i].label == 'd')
present = true;
if (present)
return 'yes';
else
return 'no';
}
h[15] = function(mol) {
for (var i = 1; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 2)
jmolScript(mol.ea["proper" + i].hideElementString);
var planeCount = 0;
for (var i = 0; i < mol.reflectionArray.length; i++)
if (mol.reflectionArray[i].label == 'd') {
planeCount += 1;
jmolScript(mol.ea["reflection" + i].showElementString); }
$('feedback').innerHTML += " - the molecule contains " + planeCount + " dihedral reflection planes (σd).";
}
q[16] = {
"text" : function(mol) { return "Does the molecule contain an inversion center?"; },
"yes" : function(mol) { return "Ci"; },
"no" : function(mol) { return "C1"; },
"x" : 111,
"y" : 2203
}
t[16] = function(mol) {
if (mol.ea.inversion0 != null)
return 'yes';
else
return 'no';
}
h[16] = function(mol) {
jmolScript(mol.ea.inversion0.showElementString);
$('feedback').innerHTML += " - the molecule contains an inversion center.";
}
q[17] = {
"text" : function(mol) {
var n = mol.ea["proper0"].elementData.order;
return "Does the molecule contain " + n + " vertical planes (σv or σd?)"; },
"yes" : function(mol) {
var n = mol.ea["proper0"].elementData.order;
return "C"+ n + "v"; },
"no" : function(mol) { return 18; },
"x" : 759,
"y" : 2203
}
t[17] = function(mol) {
var present = false;
for (var i = 0; i < mol.reflectionArray.length; i++) {
if ((mol.reflectionArray[i].label == 'v') || (mol.reflectionArray[i].label == 'yz') || (mol.reflectionArray[i].label == 'xz'))
present = true;
}
if (present)
return 'yes';
else
return 'no';
}
h[17] = function(mol) {
jmolScript(mol.ea.proper0.hideElementString);
var planeCount = 0;
for (var i = 0; i < mol.reflectionArray.length; i++) {
if ((mol.reflectionArray[i].label == 'v') || (mol.reflectionArray[i].label == 'd') || (mol.reflectionArray[i].label == 'yz') || (mol.reflectionArray[i].label == 'xz'))
planeCount += 1;
jmolScript(mol.ea["reflection" + i].showElementString); }
$('feedback').innerHTML += " - the molecule contains " + planeCount + " vertical reflection planes.";
}
q[18] = {
"text" : function(mol) {
var n = mol.ea.proper0.elementData.order;
return "Does the molecule contain a " + 2*n + "-fold improper rotation axis (S" + 2*n + ")?"; },
"yes" : function(mol) {
var n = mol.ea.proper0.elementData.order;
return "S"+ 2*n + ""; },
"no" : function(mol) {
var n = mol.ea.proper0.elementData.order;
return "C"+ n + ""; },
"x" : 759,
"y" : 2527
}
t[18] = function(mol) {
try {
if (mol.ea.improper0.elementData.order >= 4)
return 'yes';
else
return 'no';
}
catch (ex) { return 'no'; }
}
h[18] = function(mol) {
for (var i = 1; i < mol.properArray.length; i++)
if (mol.ea["proper" + i].elementData.order == 2)
jmolScript(mol.ea["proper" + i].hideElementString);
var order = mol.ea.improper0.elementData.order;
jmolScript(mol.ea.improper0.showElementString);
$('feedback').innerHTML += " - the molecule contains an S" + order + " axis.";
}