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AUTOGENERATED: DO NOT EDIT FILE DIRECTLY
title: Unlock
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# Unlock

### Description

The agent has to open a locked door. This environment can be solved without
relying on language.

### Mission Space

"open the door"

### Action Space

| Num | Name         | Action                    |
|-----|--------------|---------------------------|
| 0   | left         | Turn left                 |
| 1   | right        | Turn right                |
| 2   | forward      | Move forward              |
| 3   | pickup       | Unused                    |
| 4   | drop         | Unused                    |
| 5   | toggle       | Toggle/activate an object |
| 6   | done         | Unused                    |

### Observation Encoding

- Each tile is encoded as a 3 dimensional tuple:
    `(OBJECT_IDX, COLOR_IDX, STATE)`
- `OBJECT_TO_IDX` and `COLOR_TO_IDX` mapping can be found in
    [minigrid/minigrid.py](minigrid/minigrid.py)
- `STATE` refers to the door state with 0=open, 1=closed and 2=locked

### Rewards

A reward of '1' is given for success, and '0' for failure.

### Termination

The episode ends if any one of the following conditions is met:

1. The agent opens the door.
2. Timeout (see `max_steps`).

### Registered Configurations

- `MiniGrid-Unlock-v0`