started work on freepick touch plugin

do not use. still in development.

jspsych-touch-freepick.js

@@ -0,0 +1,87 @@
+(function( $ ) {
+	jsPsych.touch_freepick = (function(){
+	
+		var plugin = {};
+	
+		plugin.create = function(params) {
+			stims = params["stimuli"];
+			trials = new Array(stims.length);
+			for(var i = 0; i < trials.length; i++)
+			{
+				trials[i] = {};
+				trials[i]["type"] = "touch_freepick";
+				trials[i]["stims"] = stims[i];
+				trials[i]["answers"] = params["answers"][i];
+				trials[i]["timing"] = params["timing"];
+				if(params["data"]!=undefined){
+					trials[i]["data"] = params["data"][i];
+				}
+			}
+			return trials;
+		}
+
+		plugin.trial = function($this, block, trial, part)
+		{
+			switch(part){
+				case 1:
+					p1_time = (new Date()).getTime();
+					
+					// add images
+					for(var i=0;trial.stims.length;i++){
+						$this.append($('<img>', {
+							"src": trial.stims[i],
+							"class": 'freepick',
+							"id":'fp'+i
+						}));
+					}
+					
+					var click_count = 0;
+					var click_locations = [];
+					var click_times = [];
+					
+					var touchfunction = function(e) {
+					
+						e.originalEvent.preventDefault();
+					
+						var rt = (new Date()).getTime() - p1_time;
+						var x = e.originalEvent.touches[0].pageX;
+						var y = e.originalEvent.touches[0].pageY;
+						
+						click_count = click_count + 1;
+						
+						console.log("click event "+x+" "+y+". click count "+click_count+". click num "+trial.click_num);
+						
+						//save location
+						click_locations.push([x,y]);
+						click_times.push(rt);
+						
+						//save response time
+						if(click_count == trial.click_num)
+						{
+							var click_loc_data = {"click_locations": click_locations};
+							var click_time_data = {"click_times": click_times};
+							var img = {"img": trial.a_path };
+							// save data
+							block.data[block.trial_idx] = $.extend({}, img, click_loc_data, click_time_data, trial.data);
+						
+							plugin.trial($this, block, trial, part + 1);
+						}
+					};
+					
+					$('.storybook').click(function(){ void(0); })
+					
+					//$('.storybook').mousedown(function(e){ touchfunction(e);});
+					$('.storybook').bind("touchstart", function(e){touchfunction(e);});
+					
+					break;
+				case 2:
+					$('.storybook').remove();
+					
+					setTimeout(function(){block.next();}, trial.timing[0]);
+					break;
+			}
+		}
+		
+		return plugin;
+	})();
+})(jQuery);