<script>

var WEST = 0;
var EAST = 1;

function FarmerState(f, w, g, c) {
    this.f = f;
    this.w = w;
    this.g = g;
    this.c = c;
};

var state = new FarmerState(WEST, WEST, WEST, WEST);

alert(state.f +" "+ state.w +" "+  state.g +" "+  state.c);

</script>