Best of 2019

The blog posts Hacker News loved most in 2019. 4,838 posts.

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1518

Pathfinding for Tower Defense

In a Tower Defense game, there are many enemies that are all headed to the same place. In many Tower Defense games, there is a predetermined path, or a small number of paths. In some, such as the classic Desktop Tower Defense [1] , you can place towers anywhere, and they act as obstacles that affect the paths taken by…

1523

Why you should have a side project

I often advocate people surrounding me to build their own side projects. I believe they can fulfill you in so many ways: for your career, your relationships, or your independence. Buffer, the company I currently work for, was itself a side project. I’ve built myself multiple side projects. The major ones being…

1530

FaunaDB 2.5.4

In 2012, Thomson, Diamond, Weng, et al. published Calvin: Fast Distributed Transactions for Partitioned Database Systems : a transactional protocol optimized for geographic replication. Each Calvin cluster is comprised of multiple replicas , where a replica is a collection of nodes which store a complete copy of the…