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Java实现两人五子棋游戏(四) 落子动作的实现

2018-03-26 16:39 731 查看

之前的两篇文章：Java实现两人五子棋游戏(二) 画出棋盘；Java实现两人五子棋游戏(三) 画出棋子

前面，我们已经画好的棋盘和棋子，接下来，我们要通过鼠标点击屏幕获取落子位置并落子（先不考虑行棋方和胜负判断）。

步骤：

1）捕捉鼠标按下的位置

2）经过坐标变换（由像素位置->0-19的棋盘位置）

3）更新记录棋盘状态的二维数组

4）重新渲染绘制棋盘。

-------------落子动作代码示例如下--------------

一个棋子类Chessman.java

package xchen.test.simpleGobang;
public class Chessman {
private int color;//1-white，0-black
private boolean placed = false;
public Chessman(int color,boolean placed){
this.color=color;
this.placed=placed;
}
public boolean getPlaced() {
return placed;
}
public void setPlaced(boolean placed) {
this.placed = placed;
}
public int getColor() {
return color;
}
public void setColor(int color) {
this.color = color;
}
}

DrawChessBoard.java

package xchen.test.simpleGobang;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RadialGradientPaint;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.Color;
import javax.swing.JPanel;
public class DrawChessBoard extends JPanel implements MouseListener{
final static int BLACK=0;
final static int WHITE=1;
public int chessColor = BLACK;
int chessman_width=30;
public Image boardImg;
final private int ROWS = 19;
Chessman[][] chessStatus=new Chessman[ROWS+1][ROWS+1];
public DrawChessBoard() {
boardImg = Toolkit.getDefaultToolkit().getImage("res/drawable/chessboard2.png");
if(boardImg == null)
System.err.println("png do not exist");
addMouseListener(this);
}
@Override
protected void paintComponent(Graphics g) {
// TODO Auto-generated method stub
System.out.println("DRAW!!");
super.paintComponent(g);
int imgWidth = boardImg.getHeight(this);
int imgHeight = boardImg.getWidth(this);
int FWidth = getWidth();
int FHeight= getHeight();
int x=(FWidth-imgWidth)/2;
int y=(FHeight-imgHeight)/2;
int span_x=imgWidth/ROWS;
int span_y=imgHeight/ROWS;
g.drawImage(boardImg, x, y, null);
//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);
}
//画棋子
for(int i=0;i<ROWS+1;i++)
{
for(int j=0;j<ROWS+1;j++)
{
if(chessStatus[i][j]!=null&&chessStatus[i][j].getPlaced()==true)
{
System.out.println("draw chessman "+i+" "+j);
int pos_x=x+i*span_x;
int pos_y=y+j*span_y;
float radius_b=40;
float radius_w=80;
float[] fractions = new float[]{0f,1f};
java.awt.Color[] colors_b = new java.awt.Color[]{Color.BLACK,Color.WHITE};
Color[] colors_w = new Color[]{Color.WHITE,Color.BLACK};
RadialGradientPaint paint;
if(chessStatus[i][j].getColor()==1)
{
System.out.println("draw white chess");
paint = new RadialGradientPaint(pos_x-chessman_width/2f, pos_y-chessman_width/2f, radius_w*2, fractions, colors_w);
}else{
System.out.println("draw black chess");
paint = new RadialGradientPaint(pos_x-chessman_width/2f, pos_y-chessman_width/2f, radius_b*2, fractions, colors_b);
}
((Graphics2D)g).setPaint(paint);
((Graphics2D)g).fillOval(pos_x-chessman_width/2,pos_y-chessman_width/2,chessman_width,chessman_width);
}
}
}
}
@Override
//当用户按下鼠标按钮时发生
public void mousePressed(MouseEvent e) {
int point_x=e.getX();
int point_y=e.getY();
int imgWidth = boardImg.getHeight(this);
int imgHeight = boardImg.getWidth(this);
int FWidth = getWidth();
int FHeight= getHeight();
int x=(FWidth-imgWidth)/2;
int y=(FHeight-imgHeight)/2;
int span_x=imgWidth/ROWS;
int span_y=imgHeight/ROWS;
System.out.println("press");
int status_x = 0;
int status_y = 0;
if(point_x>=x && point_x<=x+imgWidth && point_y>=y && point_y <= y+imgHeight)
{
System.out.println("合法");
for(int i=0;i<ROWS+1;i++)
{
if(point_x>=x-chessman_width/2+1+i*span_x)
{
if(point_x<=x+chessman_width/2-1+i*span_x)//如果是width/2会在中间点出现两个匹配值
{
System.out.println("point x "+i+" "+point_x+" "+(x-chessman_width/2+i*span_x)+" "+(x+chessman_width/2+i*span_x));
status_x = i;
}
}
}
for(int i=0;i<ROWS+1;i++)
{
if(point_y>=y-chessman_width/2+1+i*span_y)
{
if(point_y <= y+chessman_width/2-1+i*span_y)
{
System.out.println("point y "+i+" "+point_y+" "+(y-chessman_width/2+1+i*span_y)+" "+(y+chessman_width/2-1+i*span_y));
status_y = i;
}
}
}
Chessman chessman = new Chessman(BLACK, true);
chessStatus[status_x][status_y]=chessman;
repaint();
}
System.out.println(status_x+" "+status_y+" "+chessStatus[status_x][status_y].getColor()+" "+chessStatus[status_x][status_y].getPlaced());
}
@Override
//当用户按下并松开鼠标按钮时发生
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
}

主模块代码不变

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.setSize(800, 800);
m.setVisible(true);
}
}

运行一下

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。

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