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81 lines
6.1 KiB
Markdown
81 lines
6.1 KiB
Markdown
---
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title: VideoCube
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---
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# VideoCube
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```{figure} ../../_static/videos/atari/video_cube.gif
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:width: 120px
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:name: VideoCube
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```
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This environment is part of the <a href='..'>Atari environments</a>. Please read that page first for general information.
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|---|---|
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| Action Space | Discrete(18) |
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| Observation Space | Box(0, 255, (210, 160, 3), uint8) |
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| Import | `gymnasium.make("ALE/VideoCube-v5")` |
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For more VideoCube variants with different observation and action spaces, see the variants section.
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## Description
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Solve a Rubik's cube in a nonstandard way: guide Hubie around the cube and swap tiles on the cubes face with one another until each face consists of only one color.
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For a more detailed documentation, see [the AtariAge page](https://atariage.com/manual_html_page.php?SoftwareLabelID=974)
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## Actions
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VideoCube has the action space `Discrete(18)` with the table below listing the meaning of each action's meanings.
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As VideoCube 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`.
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| Value | Meaning | Value | Meaning | Value | Meaning |
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|---------|--------------|---------|-----------------|---------|----------------|
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| `0` | `NOOP` | `1` | `FIRE` | `2` | `UP` |
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| `3` | `RIGHT` | `4` | `LEFT` | `5` | `DOWN` |
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| `6` | `UPRIGHT` | `7` | `UPLEFT` | `8` | `DOWNRIGHT` |
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| `9` | `DOWNLEFT` | `10` | `UPFIRE` | `11` | `RIGHTFIRE` |
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| `12` | `LEFTFIRE` | `13` | `DOWNFIRE` | `14` | `UPRIGHTFIRE` |
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| `15` | `UPLEFTFIRE` | `16` | `DOWNRIGHTFIRE` | `17` | `DOWNLEFTFIRE` |
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## Observations
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Atari environments have three possible observation types: `"rgb"`, `"grayscale"` and `"ram"`.
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- `obs_type="rgb" -> observation_space=Box(0, 255, (210, 160, 3), np.uint8)`
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- `obs_type="ram" -> observation_space=Box(0, 255, (128,), np.uint8)`
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- `obs_type="grayscale" -> Box(0, 255, (210, 160), np.uint8)`, a grayscale version of the "rgb" type
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See variants section for the type of observation used by each environment id by default.
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## Variants
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VideoCube has the following variants of the environment id which have the following differences in observation,
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the number of frame-skips and the repeat action probability.
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| Env-id | obs_type= | frameskip= | repeat_action_probability= |
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|----------------------|-------------|--------------|------------------------------|
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| ALE/VideoCube-v5 | `"rgb"` | `4` | `0.25` |
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| ALE/VideoCube-ram-v5 | `"ram"` | `4` | `0.25` |
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## Difficulty and modes
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It is possible to specify various flavors of the environment via the keyword arguments `difficulty` and `mode`.
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A flavor is a combination of a game mode and a difficulty setting. The table below lists the possible difficulty and mode values
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along with the default values.
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| Available Modes | Default Mode | Available Difficulties | Default Difficulty |
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|--------------------------|----------------------|
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| `[0, 1, 2, 100, 101, 102, 200, 201, 202, 300, 301, 302, 400, 401, 402, 500, 501, 502, 600, 601, 602, 700, 701, 702, 800, 801, 802, 900, 901, 902, 1000, 1001, 1002, 1100, 1101, 1102, 1200, 1201, 1202, 1300, 1301, 1302, 1400, 1401, 1402, 1500, 1501, 1502, 1600, 1601, 1602, 1700, 1701, 1702, 1800, 1801, 1802, 1900, 1901, 1902, 2000, 2001, 2002, 2100, 2101, 2102, 2200, 2201, 2202, 2300, 2301, 2302, 2400, 2401, 2402, 2500, 2501, 2502, 2600, 2601, 2602, 2700, 2701, 2702, 2800, 2801, 2802, 2900, 2901, 2902, 3000, 3001, 3002, 3100, 3101, 3102, 3200, 3201, 3202, 3300, 3301, 3302, 3400, 3401, 3402, 3500, 3501, 3502, 3600, 3601, 3602, 3700, 3701, 3702, 3800, 3801, 3802, 3900, 3901, 3902, 4000, 4001, 4002, 4100, 4101, 4102, 4200, 4201, 4202, 4300, 4301, 4302, 4400, 4401, 4402, 4500, 4501, 4502, 4600, 4601, 4602, 4700, 4701, 4702, 4800, 4801, 4802, 4900, 4901, 4902, 5000, 5001, 5002]` | `0` | `[0, 1]` | `0` |
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## Version History
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A thorough discussion of the intricate differences between the versions and configurations can be found in the general article on Atari environments.
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* v5: Stickiness was added back and stochastic frameskipping was removed. The environments are now in the "ALE" namespace.
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* v4: Stickiness of actions was removed
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* v0: Initial versions release
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