Make the simulation independent of wall clock time

[r2c2.git] / source / libr2c2 / trainai.h

diff --git a/source/libr2c2/trainai.h b/source/libr2c2/trainai.h
index b040493ce1ea5d1c903745ddd60cbbda528dc83a..3f98613ded273808782d1244df60efb4f359f831 100644 (file)
--- a/source/libr2c2/trainai.h
+++ b/source/libr2c2/trainai.h
@@ -43,7 +43,7 @@ public:
        virtual ~TrainAI();
 
        virtual void message(const Message &) { }
-       virtual void tick(const Msp::Time::TimeStamp &, const Msp::Time::TimeDelta &) { }
+       virtual void tick(const Msp::Time::TimeDelta &) = 0;
 };
 
 } // namespace R2C2