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服务器之家。

原文链接：https://blog.csdn.net/v_xchen_v/article/details/53420203