package lab4.data;

import java.util.ArrayList;
import java.util.Observable;


/**
 * Represents the 2-d game grid
 */

public class GameGrid extends Observable{

	ArrayList<int[]> myMoves = new ArrayList<int[]>();
	public static int EMPTY = 0, ME = 1, OTHER = 2;
	public final int INROW = 5;
	int size;

	int[][] grid;

	/**
	 * Constructor
	 *
	 * @param size The width/height of the game grid
	 */
	public GameGrid(int size){

		 grid = new int[size][size];
		 clearGrid();
		 this.size = size;
	}

	/**
	 * Reads a location of the grid
	 *
	 * @param x The x coordinate
	 * @param y The y coordinate
	 * @return the value of the specified location
	 */
	public int getLocation(int x, int y){

		return grid[x][y];

	}

	/**
	 * Returns the size of the grid
	 *
	 * @return the grid size
	 */
	public int getSize(){
		return size;
	}

	/**
	 * Enters a move in the game grid
	 *
	 * @param x the x position
	 * @param y the y position
	 * @param player
	 * @return true if the insertion worked, false otherwise
	 */
	public boolean move(int x, int y, int player){
		if (getLocation(x, y) == EMPTY){
			grid[x][y] = player;
			setChanged();
			notifyObservers();
			return true;
		}
		return false;
	}

	/**
	 * Clears the grid of pieces
	 */
	public void clearGrid(){
		 for (int i = 0; i < size; i++){
			 for (int j = 0; j < size; j++) {
				 grid[i][j] = EMPTY;
			 }
		 }
		setChanged();
		notifyObservers();
	}

	/**
	 * Check if a player has 5 in row
	 *
	 * @param player the player to check for
	 * @return true if player has 5 in row, false otherwise
	 */
	public boolean isWinner(int player){
		//for (int i = 0; i < 8; i++)

		return true;
	}


}