def destination_list(request, map_id, ms_id):
"""
Returns the destinations of interest tuple for K-space systems and
a blank response for w-space systems.
"""
if not request.is_ajax():
raise PermissionDenied
destinations = Destination.objects.filter(
Q(user=None) | Q(user=request.user))
map_system = get_object_or_404(MapSystem, pk=ms_id)
try:
system = KSystem.objects.get(pk=map_system.system.pk)
rf = utils.RouteFinder()
result = []
for destination in destinations:
result.append((
destination.system,
rf.route_length(system, destination.system) - 1,
round(rf.ly_distance(system, destination.system), 3),
))
except ObjectDoesNotExist:
return HttpResponse()
return render(request, 'system_destinations.html', {
'system': system,
'destinations': _sort_destinations(result)
})
def distance(self, destination):
"""
Returns the light-year distance to the destination.
"""
return utils.RouteFinder().ly_distance(self, destination)
def jumps_to(self, destination):
"""
Returns the number of gate jumps to the destination by shortest route.
"""
return utils.RouteFinder().route_length(self, destination)