Open Two Doors¶
![Open Two Doors](../../../_images/OpenTwoDoors.gif)
Action Space |
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Observation Space |
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Reward Range |
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Creation |
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Description¶
Open door X, then open door Y The two doors are facing opposite directions, so that the agent Can’t see whether the door behind him is open. This task requires memory (recurrent policy) to be solved effectively.
Mission Space¶
“open the {color} door, the open the {color} door”
{color} is the color of the box. 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 |
Pick up an object |
4 |
drop |
Unused |
5 |
toggle |
Unused |
6 |
done |
Unused |
Observation Encoding¶
Each tile is encoded as a 3 dimensional tuple:
(OBJECT_IDX, COLOR_IDX, STATE)
OBJECT_TO_IDX
andCOLOR_TO_IDX
mapping can be found in minigrid/core/constants.pySTATE
refers to the door state with 0=open, 1=closed and 2=locked
Rewards¶
A reward of ‘1 - 0.9 * (step_count / max_steps)’ is given for success, and ‘0’ for failure.
Termination¶
The episode ends if any one of the following conditions is met:
The agent opens the door.
Timeout (see
max_steps
).
Registered Configurations¶
BabyAI-OpenTwoDoors-v0
BabyAI-OpenRedBlueDoors-v0
BabyAI-OpenRedBlueDoorsDebug-v0