Patersons Worms

Hi Adam!

Ideally whatever you choose ought to produce a similar outcome, since the worm only sees it's world from it's own perspective.

I looked through your code - thanks for the comments! I might have found some trouble points in the code.

1) GetEuclideanDistanceFromOrigo() doesn't look right. It looks like Position.X and Position.Y refer to the system you describe at the beginning of Run(), rather than the cartesian (x, y), which is fine. But consider the point at Position.X = 1 and Position.Y = -1. I think the distance to the origin would be 1, but GetEuclideanDistanceFromOrigo() would return 0.518...? The math there looks almost correct, but not quite.

2) Food exists on the edges between nodes, not on nodes themselves. For example given 4 nodes A, B, C, D, the worm would be able to travel A -> B, B -> C, C -> D, and then D -> B. The fact that the worm has already visited B does not invalidate the move D -> B, because the worm hadn't yet traveled the B <-> D path specifically. Is your code checking for that behavior? My unfamiliarity with C# makes it difficult for me to tell exactly, but this might be the issue why the worm can't return to the origin.

3) It looks like I made an error in the prompt, where I listed the directions relative to the worm's head as:

• 0: Straight ahead, directly in front of the worm.
• 1: 60° right.
• 2: 120° right.
• 3: 180° behind the worm.
• 4: 60° left.
• 5: 120° left.

But the intended orientation coding has 4 and 5 flipped, so corrected it's:

• 0: Straight ahead, directly in front of the worm.
• 1: 60° right.
• 2: 120° right.
• 3: 180° behind the worm.
• 4: 120° left.
• 5: 60° left.

Drawn out, this places 3 next to 4, and 5 next to 0.

In your comment block under Run() it looks like you may have understood the intuitive intended orientation system, but at public static int[] ruleSetIndexMapping = new int[6] { 0, 1, 2, 3, -1, -2 }; it looks like you did correctly implement what was written in the prompt. Sorry about that!

Although, I'm still not certain that any of those bugs necessarily cause the worm to behave differently based on its initial orientation... but maybe this helps troubleshoot - I'm interested to hear how it turns out!