Spent 100's of emeralds on maps now just to get the same ocean explorer map each time I have tried villages large distances apart still get same map.

tried exploring maps fully before buying a new but still get the same map.

The game mechanics seem poor to me how long have I endlessly got to mine stuff to earn emeralds to buy a map I already have.

If there is way to mark the place explored it should provide clear UI feedback to say so

Change game so you cannot buy the same map twice, and make it more easy/clear to mark a place explored so you can get a new map.