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；java实现两人五子棋游戏(四) 落子动作的实现；Java实现两人五子棋游戏(五) 判断是否有一方胜出，可以点击查看。
前面我们已经画好棋盘和棋子，并可以自由落子，且可以判断棋盘中是否有五连珠。接下来的工作是，每次落子后交换行棋方（即将下一棋子颜色由白->黑或黑->白），并将胜出判断增加颜色判断条件（棋盘上存在五连珠->棋盘上存在同色的五连珠）。
主模块main.java和棋子类chessman.java不变，我们要对drawchessboard.java中的落子函数mousepressed和五连珠判断函数iswin做一下调整。
main.java
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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);
}
}
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chessman.java
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package xchen.test.simplegobang;
public class chessman {
private int color;//1-white，0-black
private boolean placed = false;
int matchcount = 1;
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;
}
}
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第一步，修改mousepressed函数，使得每次落子后，都将行棋方让给对家（即每次落子都改变棋子颜色）
drawchessboard.java中的mousepressed函数部分，只要每次都修改chesscolor的值即可。
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@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(chesscolor, true);
chessstatus[status_x][status_y]=chessman;
system.out.println("chess color:"+chesscolor);
if(chesscolor==black)
{
chesscolor = white;
}else {
chesscolor = black;
}
repaint();
if(iswin(status_x, status_y, chessstatus))
{
system.out.println("win!!!!!");
}
}
}
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运行一下
第二步，将胜出判断增加颜色判断条件（棋盘上存在五连珠->棋盘上存在同色的五连珠）
在iswin函数的判断条件上，加上对chessman.getcolor的颜色判断
iswin函数代码