--- title: Jamesbond --- # Jamesbond ```{figure} ../../_static/videos/atari/jamesbond.gif :width: 120px :name: Jamesbond ``` This environment is part of the Atari environments. Please read that page first for general information. | | | |---|---| | Action Space | Discrete(18) | | Observation Space | Box(0, 255, (210, 160, 3), uint8) | | Import | `gymnasium.make("ALE/Jamesbond-v5")` | For more Jamesbond variants with different observation and action spaces, see the variants section. ## Description Your mission is to control Mr. Bond's specially designed multipurpose craft to complete a variety of missions. The craft moves forward with a right motion and slightly back with a left motion. An up or down motion causes the craft to jump or dive. You can also fire by either lobbing a bomb to the bottom of the screen or firing a fixed angle shot to the top of the screen. For a more detailed documentation, see [the AtariAge page](https://atariage.com/manual_html_page.php?SoftwareLabelID=250) ## Actions Jamesbond has the action space `Discrete(18)` with the table below listing the meaning of each action's meanings. As Jamesbond uses the full set of actions then specifying `full_action_space=True` will not modify the action space of the environment if passed to `gymnasium.make`. | Value | Meaning | Value | Meaning | Value | Meaning | |---------|--------------|---------|-----------------|---------|----------------| | `0` | `NOOP` | `1` | `FIRE` | `2` | `UP` | | `3` | `RIGHT` | `4` | `LEFT` | `5` | `DOWN` | | `6` | `UPRIGHT` | `7` | `UPLEFT` | `8` | `DOWNRIGHT` | | `9` | `DOWNLEFT` | `10` | `UPFIRE` | `11` | `RIGHTFIRE` | | `12` | `LEFTFIRE` | `13` | `DOWNFIRE` | `14` | `UPRIGHTFIRE` | | `15` | `UPLEFTFIRE` | `16` | `DOWNRIGHTFIRE` | `17` | `DOWNLEFTFIRE` | ## Observations Atari environments have three possible observation types: `"rgb"`, `"grayscale"` and `"ram"`. - `obs_type="rgb" -> observation_space=Box(0, 255, (210, 160, 3), np.uint8)` - `obs_type="ram" -> observation_space=Box(0, 255, (128,), np.uint8)` - `obs_type="grayscale" -> Box(0, 255, (210, 160), np.uint8)`, a grayscale version of the "rgb" type See variants section for the type of observation used by each environment id by default. ## Rewards The game ends when you complete the last mission or when you lose the last craft. In either case, you'll receive your final score. There will be a rating based on your score. The highest rating in NOVICE is 006. The highest rating in AGENT is 007. For a more detailed documentation, consult the [AtariAge page](https://atariage.com/manual_html_page.php?SoftwareLabelID=250). ## Variants Jamesbond has the following variants of the environment id which have the following differences in observation, the number of frame-skips and the repeat action probability. | Env-id | obs_type= | frameskip= | repeat_action_probability= | |-------------------------------|-------------|--------------|------------------------------| | Jamesbond-v0 | `"rgb"` | `(2, 5)` | `0.25` | | Jamesbond-ram-v0 | `"ram"` | `(2, 5)` | `0.25` | | Jamesbond-ramDeterministic-v0 | `"ram"` | `4` | `0.25` | | Jamesbond-ramNoFrameskip-v0 | `"ram"` | `1` | `0.25` | | JamesbondDeterministic-v0 | `"rgb"` | `4` | `0.25` | | JamesbondNoFrameskip-v0 | `"rgb"` | `1` | `0.25` | | Jamesbond-v4 | `"rgb"` | `(2, 5)` | `0.0` | | Jamesbond-ram-v4 | `"ram"` | `(2, 5)` | `0.0` | | Jamesbond-ramDeterministic-v4 | `"ram"` | `4` | `0.0` | | Jamesbond-ramNoFrameskip-v4 | `"ram"` | `1` | `0.0` | | JamesbondDeterministic-v4 | `"rgb"` | `4` | `0.0` | | JamesbondNoFrameskip-v4 | `"rgb"` | `1` | `0.0` | | ALE/Jamesbond-v5 | `"rgb"` | `4` | `0.25` | | ALE/Jamesbond-ram-v5 | `"ram"` | `4` | `0.25` | ## Difficulty and modes It is possible to specify various flavors of the environment via the keyword arguments `difficulty` and `mode`. A flavor is a combination of a game mode and a difficulty setting. The table below lists the possible difficulty and mode values along with the default values. | Available Modes | Default Mode | Available Difficulties | Default Difficulty | |-------------------|----------------|--------------------------|----------------------| | `[0, 1]` | `0` | `[0]` | `0` | ## Version History A thorough discussion of the intricate differences between the versions and configurations can be found in the general article on Atari environments. * v5: Stickiness was added back and stochastic frameskipping was removed. The environments are now in the "ALE" namespace. * v4: Stickiness of actions was removed * v0: Initial versions release