import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;

public class ChessBoard {
    private int size;
    private int n, top, left;
    public static final int GAP=7;
    private Rectangle bounds;
    private Square[][] squares;
    private Knight knight;

    public ChessBoard(int dimension, int size, int topLeftX, int topLeftY){
        n=dimension;
        this.size=size;
        this.top=topLeftY;
        this.left=topLeftX;
        bounds = new Rectangle(left, top, n*size+(n+1)*GAP, n*size+(n+1)*GAP);
        squares = new Square[n][n];
        knight = new Knight(4,3);
        for(int i=0; i<n; i++)
            for(int j=0; j<n; j++)
            {                
                Color color = new Color(200,100,100);
                if ((i+j)%2==1)
                    color = new Color(100,50,50);
                squares[i][j]=new Square(getScreenX(i),getScreenY(j),size, color);
            }
    }
    public int getScreenX(int i)
    {
        return left=bounds.x+GAP+i*(size+GAP);
    }
    public int getScreenY(int j )
    {
        return top = bounds.y+GAP+j*(size+GAP);
    }
    public void draw(Graphics g){
        g.setColor(Color.BLACK);
        g.fillRect(bounds.x, bounds.y, bounds.width, bounds.height);
        for(int i=0; i<n; i++)
            for(int j=0; j<n; j++)
                squares[i][j].draw(g);
        int sx = getScreenX(knight.getX());
        int sy = getScreenY(knight.getY())+3*size/4;
        knight.draw(g, sx, sy);
    }
    public boolean contains (int x, int y){
        return bounds.contains(x, y);
    }
    public void hoverOver(int x, int y) {
        for(int i=0; i<n; i++)
            for(int j=0; j<n; j++)
                squares[i][j].setHighlight(squares[i][j].contains(x, y));
    }
    public void clickOn(int x, int y) {
        for(int i=0; i<n; i++)
            for(int j=0; j<n; j++)
                if (squares[i][j].contains(x, y)){
                    squares[i][j].click();
                    //your code here
                }
    }

}