import java.awt.*;
import java.util.Random;

//贪吃蛇的蛋
public class Egg {
    //蛋的位置行和列
    int row=Config.ROWS;
    int col=Config.COLS;
    int width=Config.BLOCK_SIZE;
    int height=Config.BLOCK_SIZE;

    private static Random r=new  Random();
    private Color color =Color.green;


    //构造器
    public Egg(int row, int col){
        this.row=row;
        this.col=col;
    }

    public Egg(){
        //this必须在第一行通过无参构造给有参构造赋值得到一种有参构造的效果
        this(r.nextInt(Config.ROWS - 4) + 3,r.nextInt(Config.COLS-2)+1);
    }

    //当蛋被吃了蛋的位置改变
    public void reAppear(){
        this.row = r.nextInt(Config.ROWS-4) + 3;
        this.col = r.nextInt(Config.COLS-2)+1;
    }

    //生成它的矩形的位置
    public Rectangle getRect(){
        return  new Rectangle(Config.BLOCK_SIZE*col,Config.BLOCK_SIZE* row, width, height);
    }

    public void draw(Graphics g){
        Color c = g.getColor();
        g.setColor(color);
        g.fillOval(Config.BLOCK_SIZE*col,Config.BLOCK_SIZE*row ,width ,height );
        g.setColor(c);
        if(color==Color.green) color=Color.red;
        else color=Color.green;
    }
}