Im not really sure whats wrong, i checked evreything and it should be moving in different directions when wasd is pressed but now its just moving forward 
I’ll check your project and tell you soon 
Alright I tried your project , there is something wrong with your Direction parameter , Unity just doesn’t detect it.
I made a new Parameter called “Int” . Use that as a direction parameter.
So you can say : animator.SetInteger(“Int” , 3); instead of animator.SetInteger(“Direction” , 3); .
It worked this way and hope this works for you too.