buildgraph: add support vor levelconnectors

src/c3nav/routing/graph/graph.py

@@ -1,3 +1,5 @@
+from itertools import permutations
+
 from c3nav.mapdata.models import Level
 from c3nav.routing.graph.connection import GraphConnection
 from c3nav.routing.graph.level import GraphLevel
@@ -7,6 +9,7 @@ class Graph():
     def __init__(self):
         self.levels = {}
         self.connections = []
+        self.levelconnector_points = {}
 
     def build(self):
         for level in Level.objects.all():
@@ -14,7 +17,19 @@ class Graph():
 
         for level in self.levels.values():
             level.build()
+
+        self.connect_levelconnectors()
+
+        for level in self.levels.values():
             level.draw_png()
 
+    def add_levelconnector_point(self, levelconnector, point):
+        self.levelconnector_points.setdefault(levelconnector.name, []).append(point)
+
+    def connect_levelconnectors(self):
+        for levelconnector_name, points in self.levelconnector_points.items():
+            for from_point, to_point in permutations(points, 2):
+                self.add_connection(from_point, to_point)
+
     def add_connection(self, from_point, to_point):
         self.connections.append(GraphConnection(self, from_point, to_point))