add base environment action_space/observation space and update stanford_town_env

tests/metagpt/environment/stanford_town_env/test_stanford_town_ext_env.py

@@ -4,6 +4,12 @@
 
 from pathlib import Path
 
+from metagpt.environment.stanford_town_env.env_space import (
+    EnvAction,
+    EnvActionType,
+    EnvObsParams,
+    EnvObsType,
+)
 from metagpt.environment.stanford_town_env.stanford_town_ext_env import (
     StanfordTownExtEnv,
 )
@@ -27,7 +33,6 @@ def test_stanford_town_ext_env():
     assert len(ext_env.get_nearby_tiles(tile=tile, vision_r=5)) == 121
 
     event = ("double studio:double studio:bedroom 2:bed", None, None, None)
-    ext_env.add_tiles_event(tile[1], tile[0], event=event)
     ext_env.add_event_from_tile(event, tile)
     assert len(ext_env.tiles[tile[1]][tile[0]]["events"]) == 1
 
@@ -38,3 +43,22 @@ def test_stanford_town_ext_env():
 
     ext_env.remove_subject_events_from_tile(subject=event[0], tile=tile)
     assert len(ext_env.tiles[tile[1]][tile[0]]["events"]) == 0
+
+
+def test_stanford_town_ext_env_observe_step():
+    ext_env = StanfordTownExtEnv(maze_asset_path=maze_asset_path)
+    obs, info = ext_env.reset()
+    assert len(info) == 0
+    assert len(obs["address_tiles"]) == 306
+
+    tile = (58, 9)
+    obs = ext_env.observe(obs_params=EnvObsParams(obs_type=EnvObsType.TILE_PATH, coord=tile, level="world"))
+    assert obs == "the Ville"
+
+    action = ext_env.action_space.sample()
+    assert len(action) == 4
+    assert len(action["event"]) == 4
+
+    event = ("double studio:double studio:bedroom 2:bed", None, None, None)
+    obs, _, _, _, _ = ext_env.step(action=EnvAction(action_type=EnvActionType.ADD_TILE_EVENT, coord=tile, event=event))
+    assert len(ext_env.tiles[tile[1]][tile[0]]["events"]) == 1

tests/metagpt/environment/test_base_env.py

@@ -44,11 +44,11 @@ async def test_ext_env():
     assert len(apis) > 0
     assert len(apis["read_api"]) == 3
 
-    _ = await env.step(EnvAPIAbstract(api_name="write_api", kwargs={"a": 5, "b": 10}))
+    _ = await env.write_thru_api(EnvAPIAbstract(api_name="write_api", kwargs={"a": 5, "b": 10}))
     assert env.value == 15
 
     with pytest.raises(ValueError):
-        await env.observe("not_exist_api")
+        await env.read_from_api("not_exist_api")
 
-    assert await env.observe("read_api_no_param") == 15
-    assert await env.observe(EnvAPIAbstract(api_name="read_api", kwargs={"a": 5, "b": 5})) == 10
+    assert await env.read_from_api("read_api_no_param") == 15
+    assert await env.read_from_api(EnvAPIAbstract(api_name="read_api", kwargs={"a": 5, "b": 5})) == 10