Java实现两人五子棋游戏(二) 画出棋盘

本文为大家分享了java画出五子棋游戏棋盘的方法，供大家参考，具体内容如下

棋盘模块：

画五子棋棋盘：19条横线、19条竖线

步骤一：显示棋盘

我有一张名为chessboard.png的棋盘，位置为根目录/res/drawable/chessboard/png，现在我要显示这张图片。

DrawChessBoard.java

package xchen.test.simpleGobang;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;

import javax.swing.JPanel;
public class DrawChessBoard extends JPanel{
 public Image boardImg;
 public DrawChessBoard() {
 boardImg = Toolkit.getDefaultToolkit().getImage("res/drawable/chessboard.png");
 if(boardImg == null)
  System.err.println("png do not exist");
 }
 @Override
 protected void paintComponent(Graphics g) {
 // TODO Auto-generated method stub
 super.paintComponent(g);

 int imgWidth = boardImg.getWidth(this);
 int imgHeight = boardImg.getHeight(this);
 int FWidth = getWidth();
 int FHeight= getHeight();

 int x=(FWidth-imgWidth)/2;
 int y=(FHeight-imgHeight)/2;
 g.drawImage(boardImg, x, y, null);
 }
} 

Main.java

package xchen.test.simpleGobang;

import java.awt.Container;
import javax.swing.JFrame;

import xchen.test.simpleGobang.DrawChessBoard;

public class Main extends JFrame{
 private DrawChessBoard drawChessBoard;
 public Main() {
 drawChessBoard = new DrawChessBoard();

 //Frame标题
 setTitle("单机五子棋");

 Container containerPane =getContentPane();
 containerPane.add(drawChessBoard);
 }
 public static void main(String[] args) {
 Main m = new Main();
 m.setVisible(true);
 }
}

运行一下

步骤二：为棋盘画上横竖线

DrawChessBoard.java

package xchen.test.simpleGobang;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;

import javax.swing.JPanel;
public class DrawChessBoard extends JPanel{
 public Image boardImg;
 final private int ROWS = 19;
 public DrawChessBoard() {
 boardImg = Toolkit.getDefaultToolkit().getImage("res/drawable/chessboard2.png");
 if(boardImg == null)
  System.err.println("png do not exist");
 }
 @Override
 protected void paintComponent(Graphics g) {
 // TODO Auto-generated method stub
 super.paintComponent(g);

 int imgWidth = boardImg.getWidth(this);
 int imgHeight = boardImg.getHeight(this);
 int FWidth = getWidth();
 int FHeight= getHeight();

 int x=(FWidth-imgWidth)/2;
 int y=(FHeight-imgHeight)/2;
 g.drawImage(boardImg, x, y, null);

 int margin = x;
 int span_x=imgWidth/ROWS;
 int span_y=imgHeight/ROWS;
 //画横线
 for(int i=0;i<ROWS;i++)
 {
  g.drawLine(x, y+i*span_y, FWidth-x,y+i*span_y);
 }
 //画竖线
 for(int i=0;i<ROWS;i++)
 {
  g.drawLine(x+i*span_x, y, x+i*span_x,FHeight-y);
 }

 }
}

Main.java不变
运行一下

遇到的问题：

1）Eclipse不识别文件夹下的图片

问题：文件夹中有图片，但是在Eclipse项目栏中不显示

解决办法：在Eclipse中，选中根目录，F5 refresh，就显示出来了。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。