Convert ASM to mixin

gradle.properties

@@ -74,16 +74,16 @@ apiPackage =
 accessTransformersFile = backhand_at.cfg
 
 # Provides setup for Mixins if enabled. If you don't know what mixins are: Keep it disabled!
-usesMixins = false
+usesMixins = true
 
 # Adds some debug arguments like verbose output and class export.
-usesMixinDebug = false
+usesMixinDebug = true
 
 # Specify the location of your implementation of IMixinConfigPlugin. Leave it empty otherwise.
 mixinPlugin =
 
 # Specify the package that contains all of your Mixins. You may only place Mixins in this package or the build will fail!
-mixinsPackage =
+mixinsPackage = mixins
 
 # Specify the core mod entry class if you use a core mod. This class must implement IFMLLoadingPlugin!
 # This parameter is for legacy compatibility only