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https://github.com/scratchfoundation/scratch-html5.git
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60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
// Copyright (C) 2013 Massachusetts Institute of Technology
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License version 2,
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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/*
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* Timer for the interpeter and performance testing
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* Tim Mickel, July 2011
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*/
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var Timer = function() {
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var trials = [];
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var last_trial = 0;
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var start_time = 0;
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}
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Timer.prototype.time = function() {
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return (new Date()).getTime();
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}
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Timer.prototype.start = function() {
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start_time = this.time();
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}
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Timer.prototype.stop = function() {
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end = this.time();
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last_trial = end - start_time;
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trials.push(last_trial);
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}
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Timer.prototype.count = function() {
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return trials.length;
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}
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Timer.prototype.average = function() {
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sum = 0;
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for(i = 0; i < this.count(); i++) {
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sum += trials[i];
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}
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return sum / this.count();
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}
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Timer.prototype.print = function(element) {
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text = "Trial: " + last_trial + "ms" +
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"<br />\nTrials: " + this.count() + ", Avg: " + this.average() + "ms";
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if(element) {
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$(element).html(text);
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} else {
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console.log(text);
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}
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}
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