Handle tcb sides properly

routes.lua

@@ -93,13 +93,21 @@ for k,v in pairs(advtrains.tcbs) do
 	for j in (pos..","):gmatch("([^,]+),") do
 		sp[#sp+1] = j
 	end
-	local sigpos = sp[1]..","..-sp[3].." "
 		
+	local tcbsidestr = {}
+	local hasroutes = false
+	for s=1,2 do
 		local routestr = {}
+		local side = v[s]
+		local routes = side.routes or {}
+		local signame = side.signal_name or ""
+		local auto = nil
+
 		for i,r in pairs(routes) do
-		local pl = sigpos
+			hasroutes = true
 
 			local tcbps = {}
+			local tcbs = {}
 			--		svgfile:write("<circle cx=\""..sp[1].."\" cy=\""..-sp[3].."\" r=\"3\" stroke=\"".."purple".."\" stroke-width=\"1\" fill=\"none\" />")
 			for ind,ps in ipairs(r) do
 				if ps.next then
@@ -107,25 +115,24 @@ for k,v in pairs(advtrains.tcbs) do
 					--				print(minetest.serialize(ps.next))
 					if tcb and tcb.x then
 						tcbps[#tcbps+1] = tcb.x..","..tcb.y..","..tcb.z
-					pl = pl.." "..tcb.x..","..-tcb.z
+						tcbs[#tcbs+1] = ps.next.s
 					end
 				end
 			end
-
+			local auto = '"auto": false'
+			if side.routeset and i == side.routeset and side.route_auto then
+				auto = '"auto": true'
+			end
 			if #tcbps > 0 then
-			routestr[#routestr+1] = '{ "name": "'..r.name..'",\n"endpoint": "'..tcbps[#tcbps]..'",\n"ars": '..ars_to_text(r.ars)..' }'
+				routestr[#routestr+1] = '{ "name": "'..r.name..'",\n"endpoint": "'..tcbps[#tcbps]..'",\n"ars": '..ars_to_text(r.ars)..","..auto..', "endpoint_side": '..tcbs[#tcbs]..' }'
-		end
-		color = "blue"
-		if r.ars and r.ars.default then
-			color = "green"
-		end
-		if pl~="" then
-		--	svgfile:write("<polyline points=\""..pl.."\" fill=\"none\" stroke=\""..color.."\" />")
 			end
 		end
-	if #routestr > 0 then
+		tcbsidestr[#tcbsidestr+1] = '{ "routes": [ '..table.concat(routestr, ",\n")..' ], "signal_name": "'..signame..'"}'
-		tcbstr[#tcbstr+1] = '"'..pos..'": { "type" : "Feature", "geometry": { "type": "Point", "coordinates": [ '..sp[1]..","..sp[3]..']}, "properties" : { "pos": "'..pos..'", "routes" : [\n'..table.concat(routestr,",\n").."]}}"
+	end
+	if hasroutes then
+		tcbstr[#tcbstr+1] = '"'..pos..'": { "type" : "Feature", "geometry": { "type": "Point", "coordinates": [ '..sp[1]..","..sp[3]..']}, "properties" : { "pos": "'..pos..'", "sides" : [\n'..table.concat(tcbsidestr,",\n").."]}}"
 	end
 end
+
 jsonfile:write("{"..table.concat(tcbstr,",\n").."}")
 jsonfile:close()