var eng;
function loaded(sender, args)
{
eng = new engine(sender);
}
function delegate(target, callback) {
var func = function() {
callback.apply(target, arguments);
}
return func;
}
function colChar(hits, letter)
{
this.hits = hits;
this.letter = letter;
this.active = true;
}
colChar.prototype.addHit = function(maxHits)
{
this.hits++;
if (this.hits >= maxHits && this.active == true && this.letter.length > 0)
{
this.active = false;
return true;
}
else
{
return false;
}
}
function engine(sender)
{
this.canvas = sender.findName("root");
this.prompt = sender.findName("prompt");
this.cursor = sender.findName("cursor");
this.host = sender.getHost();
this.stop = false;
this.callback = null;
this.glyphCount = 0;
this.letterCount = 18;
this.colCount = 29;
this.text = "";
this.cols = new Array();
this.maxHits = 3;
this.setCallback(this.canvas, "keydown", delegate(this, this.keyDown));
}
engine.prototype.startGlyphs = function()
{
if (this.addGlyphs())
{
var timeout = Math.floor(Math.random()*400);
this.callback = setTimeout('eng.startGlyphs()', timeout);
}
}
engine.prototype.addGlyphs = function()
{
var cont = true;
this.glyphCount++;
var col = Math.floor(Math.random()*this.colCount);
if (this.cols[col].addHit(this.maxHits))
{
this.canvas.children.add(this.host.content.createFromXaml(this.genLtrGlyphs(col)));
this.activeLetters--;
if (this.activeLetters <= 0) cont = false;
}
else if (this.cols[col].active == true)
{
this.canvas.children.add(this.host.content.createFromXaml(this.genGlyphs(col)));
this.setCallback(this.canvas.findName("Sb" + this.glyphCount), "completed", delegate(this, this.removeGlyphs));
}
return cont;
}
engine.prototype.removeGlyphs = function(sender, args)
{
var name = sender.Name;
var num = parseInt(name.replace("Sb",""));
var c = this.canvas.findName(name.replace("Sb","C"));
this.canvas.children.remove(c);
}
engine.prototype.genLtrGlyphs = function(col)
{
var left = col * 14;
var row = this.letterCount / 2;
var xaml = "';
return xaml;
}
engine.prototype.genGlyphs = function(col)
{
var left = col * 14;
var xaml = "';
return xaml;
}
engine.prototype.getLtrGlyphsXaml = function(letter, num)
{
var top = (num * 17) - 5;
var id = num + (this.glyphCount * this.letterCount);
var rate = 0.125;
var offset1 = 0.1 - (rate * num * 4);
var offset2 = 0.0 - (rate * num * 4);
var duration1 = 0.2 + (rate * num);
var duration2 = 0.25 + (rate * num);
var name = "";
if (num + 1 == this.letterCount) name = 'x:Name="Sb' + this.glyphCount + '"';
return '' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'';
}
engine.prototype.getGlyphsXaml = function(letter, num)
{
var top = (num * 17) - 5;
var id = num + (this.glyphCount * this.letterCount);
var rate = 0.125;
var offset1 = 0.1 - (rate * num * 4);
var offset2 = 0.0 - (rate * num * 4);
var offset3 = -0.5 - (rate * num * 4);
var offset4 = -0.6 - (rate * num * 4);
var offset5 = -3.6 - (rate * num * 4);
var duration1 = 0.2 + (rate * num);
var duration2 = 0.25 + (rate * num);
var duration3 = 0.35 + (rate * num);
var duration4 = 0.4 + (rate * num);
var duration5 = 3.1 + (rate * num);
var name = "";
if (num + 1 == this.letterCount) name = 'x:Name="Sb' + this.glyphCount + '"';
return '' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'' +
'';
}
engine.prototype.setCallback = function(target, eventName, callback) {
if (!window.methodIndex)
window.methodIndex = 0;
var callbackName = "uniqueCallback" + (window.methodIndex++);
var controller = this;
var func = function() {
callback.apply(controller, arguments);
}
eval(callbackName + " = func;");
target.addEventListener(eventName,callbackName);
}
engine.prototype.keyDown = function(sender, args)
{
var start = false;
switch (args.key)
{
case 1:
this.deleteLetter();
break;
case 3:
start = true;
break;
case 9:
this.addSpace();
break;
default:
this.addLetter(args.key, args.shift);
break;
}
if (start == false)
{
this.prompt.Text = "Name>" + this.text;
if (this.text.length >= this.colCount)
{
this.cursor.Foreground = "#00000000";
}
else
{
this.cursor.Foreground = "#ff94FFAB";
}
}
else
{
this.cursor.Foreground = "#00000000";
this.prompt.Opacity = 0;
this.activeLetters = this.text.length;
var start = Math.floor((this.colCount - this.text.length) / 2);
for (i = 0; i < this.colCount; i++)
this.cols[i] = new colChar(0, this.text.charAt(i - start));
this.startGlyphs();
}
}
engine.prototype.setCursor = function(visible)
{
if (visible)
this.cursor.Foreground = "#ff94FFAB";
else
this.cursor.Foreground = "#00000000";
}
engine.prototype.addLetter = function(letter, shift)
{
if (this.text.length < this.colCount)
{
if (letter >= 30 && letter <= 55)
{
if (shift == true) offset = 35;
else offset = 67;
this.text += String.fromCharCode(letter + offset);
this.cursor.SetValue("Canvas.Left", this.cursor.GetValue("Canvas.Left") + 9.5);
}
else if (letter >= 20 && letter <= 29 && !shift)
{
letter = letter % 20;
this.text += letter.toString();
this.cursor.SetValue("Canvas.Left", this.cursor.GetValue("Canvas.Left") + 9.5);
}
}
}
engine.prototype.addSpace = function()
{
if (this.text.length < this.colCount)
{
this.text += " ";
this.cursor.SetValue("Canvas.Left", this.cursor.GetValue("Canvas.Left") + 9.5);
}
}
engine.prototype.deleteLetter = function()
{
var len = this.prompt.Text.length;
if (len > 5)
{
this.text = this.text.substring(0,this.text.length - 1);
this.cursor.SetValue("Canvas.Left", this.cursor.GetValue("Canvas.Left") - 9.5);
}
}