introduced cities and intersections. These will make up the sparse network....

introduced cities and intersections. These will make up the sparse network. THen you can add trainstations to the cities and populate them with tasks for agents (start/target). Orientation of agents needs to be fixed. Also check for invalid transitions in cities and nodes needs to be implemented.

tests/test_flatland_env_sparse_rail_generator.py

@@ -24,17 +24,6 @@ def test_realistic_rail_generator():
 
 def test_sparse_rail_generator():
 
-    env = RailEnv(width=20,
-                  height=20,
-                  rail_generator=sparse_rail_generator(nr_nodes=3, min_node_dist=8,
-                                                       node_radius=4),
-                  number_of_agents=15,
-
-    env = RailEnv(width=20,
-                  height=20,
-                  rail_generator=sparse_rail_generator(nr_nodes=3, min_node_dist=8,
-                                                       node_radius=4),
-                  number_of_agents=15,
     env = RailEnv(width=50,
                   height=50,
                   rail_generator=sparse_rail_generator(num_cities=10,  # Number of cities in map