Added functionality to keep track of moves.

src/Assignments/A1/models/BoardGenerator.java

@@ -33,7 +33,7 @@ public class BoardGenerator {
 
         }
 
-        // Checks if the board is solveable.
+        // Checks if the board is solvable.
         Board generated = new Board(pieces);
         if (isSolvable(generated)) {
             return generated;

src/Assignments/A1/models/EightPuzzle.java

@@ -1,7 +1,6 @@
 package Assignments.A1.models;
 
-import java.util.ArrayList;
-import java.util.List;
+import java.util.*;
 
 /**
  * @author Jonathan Turner
@@ -9,8 +8,6 @@ import java.util.List;
  */
 public class EightPuzzle {
 
-    private List<Board> boards = new ArrayList<>();
-
 
 
 }

src/Assignments/A1/models/Move.java

@@ -0,0 +1,49 @@
+package Assignments.A1.models;
+
+/**
+ * Used to keep track of moves in either a stack or queues.
+ *
+ * @author Jonathan Turner
+ * @version Spring 2024
+ */
+public class Move {
+
+    private Board board;
+    private final Pair<Integer> points;
+    private boolean used;
+
+    /**
+     * Creates a new move with the given points.
+     *
+     * @precondition none
+     * @postcondition a new move is created.
+     * @param firstpoint the first point
+     * @param secondpoint the second point
+     */
+    public Move(int firstpoint, int secondpoint) {
+        this.points = new Pair<>(firstpoint, secondpoint);
+    }
+
+    /**
+     * Checks if a move was used.
+     * @precondition none
+     * @postcondition none
+     * @return whether the move was used.
+     */
+    public boolean used() {
+        return used;
+    }
+
+    /**
+     * Returns the points for the move and marks it as used.
+     *
+     * @precondition none
+     * @postcondition used == true
+     * @return the pair of points.
+     */
+    public Pair<Integer> traverse() {
+        used = true;
+        return points;
+    }
+}
+

src/Assignments/A1/models/Pair.java

@@ -0,0 +1,29 @@
+package Assignments.A1.models;
+
+/**
+ * Used to pair two points for moves.
+ * @author Jonathan Turner
+ * @version Spring 2024
+ * @param <E> the type of the pair.
+ */
+public class Pair<E> {
+
+    /* the first and second points */
+    public E first;
+    public E second;
+
+    /**
+     * Creates and sets the first and second point of the pair.
+     *
+     * @precondition none
+     * @postcondition a pair is created.
+     *
+     * @param first the first point of the pair
+     * @param second the second point of the pair
+     */
+    public Pair(E first, E second) {
+        this.first = first;
+        this.second = second;
+    }
+
+}