Allow TS to import countShips internally

common/src/algorithms/movementDirection.ts

@@ -1,14 +1,15 @@
 /**
+ * @internal
  * A helper method for counting how many ships are on each side of a specific
  * ship on the board.
  *
  * @param board The array of spaces that represents the Gravwell board
  * @param shipLocation The index of the ship that we are counting the number of
- *		ships on each side for.
+ *	ships on each side for.
  * @returns An object containing the number of ships that are on each side of
- *		the target ship
+ *	the target ship
  */
-function countShips(board: any[], shipLocation: number) {
+export function countShips(board: any[], shipLocation: number) {
 	return {
 		left: board.slice(1, shipLocation - 1).filter(x => x != null).length,
 		right: board.slice(shipLocation + 1).filter(x => x != null).length,