Guide to implementing 2D platformers (2012) - https://news.ycombinator.com/item?id=31450218 - May 2022 (37 comments)
A guide to implementing 2D platformers - https://news.ycombinator.com/item?id=10202275 - Sept 2015 (32 comments)
The guide to implementing 2D platformers - https://news.ycombinator.com/item?id=4065033 - June 2012 (2 comments)
The Guide to Implementing 2D Platformers - https://news.ycombinator.com/item?id=4005883 - May 2012 (2 comments)