[Bug] Cache needs to be invalidated after a certain point to reevaluate blocked exits

[alexanselmo]

Exits can be temporarily blocked in the case of Novice zones and other potential obstructions. We need a way to invalidate the cache and reevaluate paths.

screeps-quorum/src/lib/map.js

Lines 19 to 33 in f6868c5

	if (!opts.ignoreCache) {
	const cacheLabel = `route_${Room.serializeName(fromRoom)}_${Room.serializeName(toRoom)}`
	const cachedPath = sos.lib.cache.get(cacheLabel)
	if (cachedPath) {
	return cachedPath
	}
	const newPath = Game.map.findRoute(fromRoom, toRoom, opts)
	const options = { maxttl: 150 }
	if (newPath.length >= 4) {
	options.persist = true
	}
	sos.lib.cache.set(cacheLabel, newPath, options)
	return newPath
	}
	}

[tedivm]

The cache automatically invalidates after 150 ticks (that's what the maxttl is for).

[alexanselmo]

Interesting, I was running into an issue where my creeps thought an exit was blocked, long after it had been unblocked. I'll dig in a little deeper and see where the true error lies.

[tedivm]

You may want to look at the costmatrix generation and caching code, as anything there would trickle up to the pathfinding layer.

[alexanselmo]

Ok, thanks. I'm going to close this issue until I can get a better understanding of where it went wrong.