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。

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