Implemented/added Move and State class

To represent a single move or a state in the search tree

src/model/Move.java

 package model;
 
-public class Move {
-
-		private Car car;
-		private boolean forward;
-		private int movement_size;
-		
-		
-		public Move(Car car, boolean forward, int movement_size) {
-			super();
-			this.car = car;
-			this.forward = forward;
-			this.movement_size = movement_size;
-		}
-		
-		
-		public Car getCar() {
-			return car;
-		}
-		public void setCar(Car car) {
-			this.car = car;
-		}
-		public boolean isForward() {
-			return forward;
-		}
-		public void setForward(boolean forward) {
-			this.forward = forward;
-		}
-		public int getMovement_size() {
-			return movement_size;
-		}
-		public void setMovement_size(int movement_size) {
-			this.movement_size = movement_size;
-		}
-		
+public class Move
+{
+
+	private Car car;
+	private boolean forward;
+	private int movement_size;
+
+
+	public Move(Car car, boolean forward, int movement_size)
+	{
+		super();
+		this.car = car;
+		this.forward = forward;
+		this.movement_size = movement_size;
+	}
+
+	public void play(int[][] board)
+	{
+		if(forward)
+			car.moveForward(board, movement_size);
+		else
+			car.moveBackwards(board, movement_size);
+	}
+
+	public Move getOpposite()
+	{
+		return new Move(this.car, !this.forward, this.movement_size);
+	}
+
+	public Car getCar()
+	{
+		return car;
+	}
+
+	public void setCar(Car car)
+	{
+		this.car = car;
+	}
+
+	public boolean isForward()
+	{
+		return forward;
+	}
+
+	public void setForward(boolean forward)
+	{
+		this.forward = forward;
+	}
+
+	public int getMovement_size()
+	{
+		return movement_size;
+	}
+
+	public void setMovement_size(int movement_size)
+	{
+		this.movement_size = movement_size;
+	}
+
 
 }

src/model/State.java

+package model;
+
+public class State implements Comparable<State>
+{
+	private int heuristic, cost;
+	private Move move;
+	private State parent;
+
+	public State(int[][] board, Move move, State parent)
+	{
+		this.move = move;
+		this.parent = parent;
+		this.cost = parent.cost + 1;
+		this.heuristic = naiveHeuristic(board);
+	}
+
+	public State getParent()
+	{
+		return parent;
+	}
+
+	public Move getMove()
+	{
+		return move;
+	}
+
+	public int getEvaluation()
+	{
+		return heuristic + cost;
+	}
+
+	/**
+	 * Compute the heuristic of the state starting from a board.
+	 * This is intended to be called at start
+	 */
+	private int naiveHeuristic(int[][] board)
+	{
+		//TODO: heuristic
+		return 0;
+	}
+
+	@Override
+	public int compareTo(State o)
+	{
+		return Integer.compare(getEvaluation(), o.getEvaluation());
+	}
+}