Compass device

[xsebek]

In some challenges it is undesirable to be able to turn to cardinal directions.

For example in some algorithmic challenges the robot should only turn left or right, to teach thinking relative to the robot.

The chess horse challenge sets the robot direction to [2,1] so it moves like the knight piece. Turning north cheeses the challenge. 😅

Solution

Create a compass device, some cardinal orientation ability which will be required for cardinal directions.

The recipe could be something really simple like:

1 water ─┬───── compass
1 copper ┘
   wire

Alternatives

We could limit abilities directly in challenges, but it would still require creating some compass ability.

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• credit for the idea goes to @byorgey in Find robots #339

[xsebek]

Well iron plate would be more realistic. We could even add lodestone, if magnets were useful in other recipes (lodestone + iron plate -> magnetized iron plate + lodestone).

• see Add iron to allow more advanced recipes #93

[byorgey]

Should be pretty easy to add a new capability, maybe called orient, and update capability checking so orient is required any time a cardinal direction is mentioned.