raidboss: Lunar Subterrane--Add Ruinous Hex calls

[JLGarber]

This would probably be a lot simpler with matrix math, but I don't know matrices enough to implement them here, so this is what we get instead. It should be largely self-explanatory with the in-line comments, but please criticize away, since this isn't necessarily the nicest implementation.

[cactbotbot]

@JLGarber Thanks for your contribution! 🌵🚀

[quisquous]

This would probably be a lot simpler with matrix math, but I don't know matrices enough to implement them here, so this is what we get instead. It should be largely self-explanatory with the in-line comments, but please criticize away, since this isn't necessarily the nicest implementation.

I don't know what you mean by matrix math.

I think my only concern here is that this seems a little fragile to make assumptions about safe spot based on patterns, but if you feel convinced from your data, then I'm fine to merge it.

If you wanted an optional alternate implementation suggestion, then I'd suggest something like this approach:

let safeX = [0, 1, 2, 3];
let safeY = [0, 1, 2, 3];

for (const staff of staffs) {
  // map staff positions into 0-3 row/col coordinates
  const col = Math.round((staff.x - centerX) / something + something);
  const row = Math.round((staff.y - centerY) / something + something);
  
  safeX = safeX.filter((x) => x !== col);
  safeY = safeY.filter((y) => y !== row);
}

const [finalX] = safeX;
const [finalY] = safeY;
if (finalX == undefined || finalY === undefined || safeX.length !== 1 || safeY.length !== 1)
  return;

// use safeX and safe Y to return a square

[JLGarber]

Okay, thank you, that's a much better approach. I know the implementation I'm using here involves comparisons against numeric positions, but I think it's safe enough given that we know these positions are accurate, and that we're rounding everything. This worked perfectly in testing, and it should handle any possible staff setup regardless of whether we have seen it before.

[quisquous]

Thanks! Looks good to me!