Gym-MiniGrid/docs/environments/go_to_door.md

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title: Go To Door

Go To Door

Description

This environment is a room with four doors, one on each wall. The agent receives a textual (mission) string as input, telling it which door to go to, (eg: "go to the red door"). It receives a positive reward for performing the done action next to the correct door, as indicated in the mission string.

Mission Space

"go to the {color} door"

{color} is the color of the door. Can be "red", "green", "blue", "purple", "yellow" or "grey".

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	Unused
6	done	Done completing task

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
• 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 stands next the correct door performing the done action.
2. Timeout (see max_steps).

Registered Configurations

• MiniGrid-GoToDoor-5x5-v0
• MiniGrid-GoToDoor-6x6-v0
• MiniGrid-GoToDoor-8x8-v0