Flixel 5.0.0 Migration guide

Flixel 5.0.0 is the first major update to flixel since 2016. Since then, we've added many new features without messing up existing games but if you want to make a great game engine, you need to make a few breaking changes. In order to keep major version updates to a minimum, we ended up stock-piling a large list of fixes and features. This guide will help you utilize them in your existing Flixel 4 games.

How to Migrate

1. If you're project is using an older version than 4.11, it might be a good idea to try 4.11 before 5.0
2. [Talk about the beta, if we end up having a beta]
3. Be sure to check out the changelog for a quick overview of every change that was made

FlxVector is Dead, All Hail FlxPoint #2557

It seemed silly to have 2 separate 2d position classes, so we took every method in FlxVector and moved them all to FlxPoint. FlxVector Still exists, but it's been reduced to a deprecated typedef of FlxPoint. Not many devs knew FlxVector existed, so hopefully this will expose more devs to cool features like length and degrees getter/setters, or math helpers like dotProduct and bounceWithFriction.

As a bonus, we've also added math operators, like +, +=, -, -=, * and *=.

Angles at 0˚ Point Right, Not Up #2482

There used to be some inconsistencies regarding angles, almost every math utility would point right at 0 degrees, but not everywhere. Notably FlxSwipe and FlxPath treated 0 degrees as up. If you're using a FlxPath on a sprite with autoRotate enabled, you'll need to change your sprite to face right at 0 degrees. (actually wait, I should make an offset property to solve this more easily)