{ "width": 1000, "height": 2000, "dt": 0.2, "entities": [ { "id": "ego", "type": "ego", "toward": "0", "x": 500, "y": 0, "size": "Small", "vx": 0, "vy": 300, "ay": 0, "accel_mode": "Z" }, { "id": "veh_1", "type": "vehicle", "toward": "0", "x": 492, "y": 1090, "size": "Small", "vx": 0, "vy": 430, "ay": 0, "accel_mode": "Z" }, { "id": "veh_2", "type": "vehicle", "toward": "0", "x": 680, "y": 836, "size": "Small", "vx": 0, "vy": 430, "ay": 0, "accel_mode": "Z" }, { "id": "veh_3", "type": "vehicle", "toward": "0", "x": 939, "y": 759, "size": "Nm", "vx": 0, "vy": 180, "ay": 0, "accel_mode": "Z" }, { "id": "obs_1", "type": "obstacle", "x": 200, "y": 992, "width": 400, "length": 2000 }, { "id": "obs_2", "type": "obstacle", "x": 554, "y": 556, "width": 262, "length": 214 } ] }