These probably would be most useful in adventure maps, but what if it were made so if a beacon block was powered, it would turn off? that way, we could have flashing beacons.
My other Idea was if one of the blocks of a nether portal frame was powered, it would become active.
Can't that be done already? Can't you use a sticky piston and keep pulling/pushing a block on the beacon's pyramid? I've seen it done before in an adventure map from a distance but not how it worked.
My other Idea was if one of the blocks of a nether portal frame was powered, it would become active.
Any thoughts?
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Fire charges and water.