erb won't render in coffeescript file
$ ->
    alert "Hello <%= @test %>"
    latlng = new google.maps.LatLng(43.0, -107.0);
    myOptions =
        zoom: 5,
        center: latlng,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
    point = new google.maps.LatLng(43.0, -107.0);
    marker = new google.maps.Marker({
        position: point,
        map: map,
        title: "Test",
    });

class LocationsController < ApplicationController

    def show
        @traveling_party = TravelingParty.find_by_id(session[:party])
        @location = Location.where("position >= #{@traveling_party.position}").order("position ASC").first
    end

    def move
        f = params[:traveling_party]

        @traveling_party = TravelingParty.find(f["id"])
        @traveling_party.speed = f["speed"].to_i
        @traveling_party.ration = f["ration"].to_i

        @location = Location.where("position > #{@traveling_party.position}").order("position ASC").first

        @traveling_party.position += @traveling_party.speed
        if @traveling_party.position > @location.position
            @traveling_party.position = @location.position
        end

        food_eaten = @traveling_party.ration * @traveling_party.people
        Item.where({:trader_id => @traveling_party.id, :type => "Food"}).limit(food_eaten).destroy_all()

        if @traveling_party.save()
            flash[:notice] = "Successfully updated traveling party."
            redirect_to '/play/'
        else
            flash[:error] = "Transaction could not be completed."
            redirect_to '/play/'
        end
    end

    def map
        @traveling_party = TravelingParty.find_by_id(session[:party])
        @locations = Location.all
        @test = "5"
    end

end

<% @locations.each do |loc| %>

<% end %>

<div id="map_canvas">Random</div>