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4ea424b465
variables (in the form of functions) can be passed in to the text plug in and their contents (return values) are substituted into the string when the text plugin is displayed. (also fixed bug in xab where correct/incorrect were backwards -- as of jul 17 commit)
106 lines
2.9 KiB
JavaScript
Executable File
106 lines
2.9 KiB
JavaScript
Executable File
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(function( $ ) {
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jsPsych.xab = (function(){
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var plugin = {}
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plugin.create = function(params)
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{
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//xab_stims = shuffle(xab_stims);
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xab_stims = params["stimuli"];
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trials = new Array(xab_stims.length);
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for(var i = 0; i < trials.length; i++)
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{
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trials[i] = {};
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trials[i]["type"] = "xab";
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trials[i]["a_path"] = xab_stims[i][0];
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trials[i]["b_path"] = xab_stims[i][1];
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trials[i]["timing"] = params["timing"];
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trials[i]["left_key"] = params["left_key"] || 81; // defaults to 'q'
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trials[i]["right_key"] = params["right_key"] || 80; // defaults to 'p'
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if(params["prompt"]) {
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trials[i]["prompt"] = params["prompt"];
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}
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if(params["data"]){
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trials[i]["data"] = params["data"][i];
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}
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}
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return trials;
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}
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plugin.trial = function($this, block, trial, part)
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{
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switch(part){
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case 1:
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p1_time = (new Date()).getTime();
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$this.append($('<img>', {
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"src": trial.a_path,
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"class": 'xab'
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}));
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setTimeout(function(){plugin.trial($this, block, trial, part + 1)}, trial.timing[0]);
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break;
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case 2:
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p2_time = (new Date()).getTime();
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$('.xab').remove();
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setTimeout(function(){plugin.trial($this, block, trial, part + 1)}, trial.timing[1]);
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break;
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case 3:
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p3_time = (new Date()).getTime();
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startTime = (new Date()).getTime();
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var images = [trial.a_path, trial.b_path];
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var target_left = (Math.floor(Math.random()*2)==0); // binary true/false choice
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if(!target_left){
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images = [trial.b_path, trial.a_path];
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}
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// show the images
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$this.append($('<img>', {
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"src": images[0],
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"class": 'xab'
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}));
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$this.append($('<img>', {
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"src": images[1],
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"class": 'xab'
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}));
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if(trial.prompt)
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{
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$this.append(trial.prompt);
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}
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var resp_func = function(e) {
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var flag = false;
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var correct = false;
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if(e.which== trial.left_key) // 'q' key
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{
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flag = true;
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if(target_left) { correct = true; }
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} else if(e.which== trial.right_key) // 'p' key
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{
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flag = true;
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if(!target_left){ correct = true; }
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}
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if(flag)
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{
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endTime = (new Date()).getTime();
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rt = (endTime-startTime);
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stim1_time = (p2_time-p1_time);
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isi_time = (p3_time-p2_time);
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var trial_data = {"rt": rt, "correct": correct, "a_path": trial.a_path, "b_path": trial.b_path, "key_press": e.which, "stim1_time": stim1_time, "isi_time":isi_time}
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block.data[block.trial_idx] = $.extend({},trial_data,trial.data);
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$(document).unbind('keyup',resp_func);
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$this.html(''); // remove all
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setTimeout(function(){block.next();}, trial.timing[2]);
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}
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}
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$(document).keyup(resp_func);
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//TODO: CHECK IF IMAGE SHOULD DISAPPEAR
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//based on timings
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break;
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}
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}
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return plugin;
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})();
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})(jQuery); |