I think this beats it by about 10k ticks?

https://screeps.com/a/#!/history/E19S4?t=10573941

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> which will help you figure out the inside versus outside of the novice area.

How do you know which side of the wall is novice area?

>  using that as a reference point, you should be able to figure out which side of the room is accessible.

Requires a very expensive FindPath function ( for example from my observer to powerbank in E20 it takes 40 CPU )

Amadox, you are wrong, once again I am checking Power Bank inside the room. 

For E20 if the powerbank is on the west side of the wall - I can mine it, it it's on the east side - I can not.

PowerBanks spawn randomly. I have a function that checks a room to see if it has a PowerBank. What I need is a way to filter PowerBanks (but could be other objects) based on newbie wall.

You misunderstand my problem, it's not enough to detect that the room has the wall, a detection on which side of the wall is the power bank is what is needed. How can you do it inexpensivly without hardcoding manual table ( ignore west side of E20 line for example)  ?

A new player zone wall just went up in the E20 rooms and it creates huge problem, the algorithm that I have to scan for Power Banks has no way to exclude Power Banks inaccessible from my rooms.

The only way I saw to code around it is:
- Hardcode bunch of areas as "not accessable" and exclude them in search. That requires maintaing manually a table of rooms.

- Try to do "FindRoute" to power bank. That is very expensive.

Since new players will not be able to reach lvl 8 can you make a change to not place power banks into their area ?

Alternatively can you add a search parameter to exclude newbie zones?

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Scenario:

Room A is claimed lvl 8 and has only one exit, to Room B
Room B is reserved.

If the reservation drops in Room B, when would invader appear in room A ? Is it immediately or after 100000 energy have been mined ?

Currently in order to be competitive one has to let his lvl 8 rooms downgrade to lvl 7 then use saved resources to avoid 15 ticks cap.
Is the mechanic going to stay in game ?

I have exactly the same problem.