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SimpleCanvasStage = Utilities.createSubclass(Stage,
function(canvasObject)
{
Stage.call(this);
this._canvasObject = canvasObject;
this.objects = [];
this.offsetIndex = 0;
}, {
initialize: function(benchmark, options)
{
Stage.prototype.initialize.call(this, benchmark, options);
this.context = this.element.getContext("2d");
},
tune: function(count)
{
if (count == 0)
return;
if (count < 0) {
this.offsetIndex = Math.min(this.offsetIndex - count, this.objects.length);
return;
}
var newIndex = this.offsetIndex - count;
if (newIndex < 0) {
this.offsetIndex = 0;
newIndex = -newIndex;
for (var i = 0; i < newIndex; ++i) {
if (this._canvasObject.constructor === Array)
this.objects.push(new (Stage.randomElementInArray(this._canvasObject))(this));
else
this.objects.push(new this._canvasObject(this));
}
} else
this.offsetIndex = newIndex;
},
animate: function()
{
var context = this.context;
context.clearRect(0, 0, this.size.x, this.size.y);
for (var i = this.offsetIndex, length = this.objects.length; i < length; ++i)
this.objects[i].draw(context);
},
complexity: function()
{
return this.objects.length - this.offsetIndex;
}
});
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