@tigga I just read the source code of how Room.find works and found that the result of Room.find(FIND_HOSTILE_CREEPS) (and other structures) are constructed every tick no mater whether I read it or not... Maybe it's not a good idea to parse the event log instead of just looping through the result of find

@tigga It is true that events like STRUCTURE_DECAYED and CREEP_SPAWNED can be detected by user's code without too much cpu cost. However, I really cannot image how to detect an invader entering a room in an O(1) time complexity.

Could you guys please add more event types to Room.getEventLog? like creep enter room, structure decayed, creep spawned, etc.