N3X15/MinecartMania — comment on commit 2d4b6061ee25b149251e370863275c93fceef79f
File:  line 0
By Etsija:

Found it - your calculateLaunchSpeed() doesn't currently take into account that a "launch player" should also be a valid text! "launch player" means the minecart should take off when the player hops into it. That part probably already is handled somewhere else in Afforess's code - but currently, calculateLaunchSpeed() only expects to find "launch north/east/south/west", therefore throwing endless amount of Java exceptions, when I write "launch player" to my sign.

I could try and create a pull request for you to fix this - but I think you can fix it far sooner than I can.