added better description of 'isFencePlacementPossible'

src/main/ts/fence-placement-validation.ts

 import { GameBoard } from "./game-board";
 import { isValidPosition } from "./game-board";
-import { Position, equals, bottom, right } from "./position";
+import { Position } from "./position";
 import * as positions from "./position";
 import { getAdjacentPositions } from "./game-board";
 import { Queue } from "./util";
 import * as util from "./util"
-import { Fence, getNumberSharedSquares, isHorizontal } from "./fence";
-import { Square } from "./square";
 import { isMovePossible } from "./movement-validation";
 
 /**
@@ -23,27 +21,37 @@ export function isFencePlacementPossible(gameBoard: GameBoard, start: Position,
     #TODO: Implement this function
     
     This function should check that:
-        - the positions start and stop are valid
-        - there is no intersection with other fences
+        - Whether the fence orientation is either vertical or horizontal.
+        - If the starting and ending positions of the fence are valid on 
+        the game board.
+        - Whether the fence is within the boundaries of the game board.
+        - If placing the fence would intersect with any existing fences.
+        - Whether placing the fence would leave any pawn without a valid 
+        path to reach their final position.
     */
 
     return true;
 }
 
-/**
+
+ /**
  * Checks if there exists a path between two positions on the game board.
  * 
+ * This function performs a breadth-first search (BFS) algorithm to determine if there is a valid path
+ * between two specified positions on the game board. It explores adjacent positions starting from the 
+ * provided starting position until it reaches the target position or exhausts all possible paths.
+ *
  * @param gameBoard The game board.
  * @param start The starting position.
  * @param target The target position.
  * @returns True if a path exists between the positions, otherwise false.
  */
-function existsPath(gameBoard: GameBoard, start: Position, target: Position): boolean {
+ function existsPath(gameBoard: GameBoard, start: Position, target: Position): boolean {
     // Visited squares
     const visited = new Array<Position>();
 
     // Create a queue for BFS
-    const queue: Queue<Position> = util.queue<Position>() ;
+    const queue: Queue<Position> = util.queue<Position>();
     util.enqueue(queue, start);
 
     // BFS loop
@@ -64,11 +72,10 @@ function existsPath(gameBoard: GameBoard, start: Position, target: Position): bo
                 && isMovePossible(gameBoard, currentPos, adjPos)
                 && !util.containsPosition(visited, adjPos)) {
                 // Enqueue adjacent position
-                util.enqueue(queue, adjPos);;
+                util.enqueue(queue, adjPos);
             }
         }
     }
-
     // No path found
     return false;
 }