Validation module for swiss card game jass. Based on rules from "Göpf Egg" Gottfried Egg. See: http://www.jassinfo.ch/f_jassregeln.html Supports the JassMode "Schieber".
Will be used by the jass engine to ensure that players play only cards that they are allowed to play.
The project can be easily imported in IntelliJ as a Gradle Project.