Reset code box's direction on run

starfish.js

@@ -96,6 +96,7 @@ class CodeBox {
         // Reset some field for a clean run
         this.box = [];
         this.pointer = [0, 0];
+        this.curr_direction = this.directions.EAST;
         this.outputDOM.value = "";
 
         const cbRaw = this.codeBoxDOM.value;