From 36ee18b88eaff9a6a9c1bc555a9e70ec4dae180e Mon Sep 17 00:00:00 2001
From: Richard Fairhurst <richard@systemeD.net>
Date: Wed, 22 Jan 2014 18:38:07 +0000
Subject: [PATCH] Parse MapQuest directions

---
 .../routing_engines/mapquest_bicycle.js       | 32 ++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/app/assets/javascripts/routing_engines/mapquest_bicycle.js b/app/assets/javascripts/routing_engines/mapquest_bicycle.js
index 123f2700a..5dfe13234 100644
--- a/app/assets/javascripts/routing_engines/mapquest_bicycle.js
+++ b/app/assets/javascripts/routing_engines/mapquest_bicycle.js
@@ -9,6 +9,27 @@ OSM.RoutingEngines.list.push({
 	name: 'Bicycle (MapQuest Open)',
 	draggable: true,
 	_hints: {},
+	MQ_SPRITE_MAP: {
+		0: 1, // straight
+		1: 2, // slight right
+		2: 3, // right
+		3: 4, // sharp right
+		4: 5, // reverse
+		5: 6, // sharp left
+		6: 7, // left
+		7: 8, // slight left
+		8: 5, // right U-turn
+		9: 5, // left U-turn
+		10: 2, // right merge
+		11: 8, // left merge
+		12: 2, // right on-ramp
+		13: 8, // left on-ramp
+		14: 2, // right off-ramp
+		15: 8, // left off-ramp
+		16: 2, // right fork
+		17: 8, // left fork
+		18: 1  // straight fork
+	},
 	getRoute: function(final,points) {
 		var url="http://open.mapquestapi.com/directions/v2/route?key=Fmjtd%7Cluur290anu%2Crl%3Do5-908a0y";
 		var from=points[0]; var to=points[points.length-1];
@@ -20,6 +41,8 @@ OSM.RoutingEngines.list.push({
 		this.requestJSONP(url+"&callback=");
 	},
 	gotRoute: function(router,data) {
+		// *** what if no route?
+		
 		var poly=[];
 		var shape=data.route.shape.shapePoints;
 		for (var i=0; i<shape.length; i+=2) {
@@ -30,6 +53,13 @@ OSM.RoutingEngines.list.push({
 		// data.shape.maneuverIndexes links turns to polyline positions
 		// data.legs[0].maneuvers is list of turns
 		console.log(data);
-//		router.setItinerary(data.route_instructions);
+		var steps=[];
+		var mq=data.route.legs[0].maneuvers;
+		for (var i=0; i<mq.length; i++) {
+			var s=mq[i];
+			var d=(i==mq.length-1) ? 15: this.MQ_SPRITE_MAP[s.turnType];
+			steps.push([L.latLng(s.startPoint.lat, s.startPoint.lng), d, s.narrative, s.distance*1000]);
+		}
+		router.setItinerary( { steps: steps });
 	}
 });
-- 
2.43.2