Javafx实现国际象棋游戏

本文实例为大家分享了Javafx实现国际象棋游戏的具体代码，供大家参考，具体内容如下

基本规则

• 棋子马设计“日”的移动方式

• 兵设计只能向前直走，每次只能走一格。但走第一步时，可以走一格或两格的移动方式

• 请为后设计横、直、斜都可以走，步数不受限制，但不能越子的移动方式。

• 车只能横向或者竖向行走

• 国王是在以自己为中心的九宫格内行走

• 骑士只能走对角线
  

项目目录结构

UML类图关系

以骑士为例

实现基本功能

• 吃子

• 不能越子

• 游戏结束提示

• 基本移动策略

• 背景音乐

• 
  

效果

控制器

PressedAction

package com.Exercise3;

import com.Exercise3.Controller.PressedAction;
import com.Exercise3.Controller.ReleaseAction;
import com.Exercise3.Controller.ResetAction;
import com.Exercise3.view.ChessBoard;
import com.Exercise3.view.ChessPane;
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;

import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.stage.Stage;

public class Test extends Application {

public static void main(String[] args) {
launch(args);
}

@Override
public void start(Stage primaryStage) {

String MEDIA_URL = "file:/E:/IdeaProjects/Experiment/src/com/Exercise3/music/BackgroundMusic.mp3";
ChessBoard chessBoard = ChessBoard.getInstance(100,40,40);

//添加媒体资源

Media media = new Media(MEDIA_URL);
MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.setAutoPlay(true);
mediaPlayer.setCycleCount(MediaPlayer.INDEFINITE);
mediaPlayer.play();

ChessPane pane = new ChessPane(chessBoard);
pane.setOnMousePressed(new PressedAction(pane,mediaPlayer));

pane.setOnMouseReleased(new ReleaseAction(pane));

BorderPane borderPane = new BorderPane();
borderPane.setCenter(pane);
HBox hBox = new HBox();
hBox.setAlignment(Pos.TOP_CENTER);

Button button = new Button("悔棋");
button.setOnAction(new ResetAction(pane));

hBox.getChildren().add(button);
borderPane.setBottom(hBox);
Scene scene = new Scene(borderPane,900,900);
primaryStage.setScene(scene);
primaryStage.setTitle("国际象棋");
primaryStage.show();

}
}

ReleasedAction

package com.Exercise3.Controller;

import com.Exercise3.entity.Piece.ChessPiece;
import com.Exercise3.entity.PieceType;
import com.Exercise3.view.ChessBoard;
import com.Exercise3.view.ChessPane;
import javafx.event.EventHandler;
import javafx.scene.control.Alert;
import javafx.scene.input.MouseEvent;

import java.util.Stack;

public class ReleaseAction implements EventHandler<MouseEvent> {
private ChessPane chessPane;
static Stack<ChessPiece> stack = new Stack<>();

public ReleaseAction(ChessPane chessPane) {
this.chessPane = chessPane;
}

@Override
public void handle(MouseEvent e) {
chessPane.drawBoard();
ChessBoard chessBoard = chessPane.getChessBoard();
int x = (int) ((e.getX() - chessBoard.getStartX()) / (chessBoard.getCellLength()));
int y = (int) ((e.getY() - chessBoard.getStartY()) / (chessBoard.getCellLength()));

for (ChessPiece o : chessPane.getChessPieces()) {
if (o.isSelected()) {

System.out.println(o.isSelected()+" "+o.getRow()+" "+o.getCol());
if (chessBoard.getCurrSide()==o.getSide()){
 if(o.getMoveStrategy().move(x, y,chessPane.getChessPieces())){
 o.setSelected(false);
 if(judgeGame(x,y)){
 printTip(o.getSide());
 }
 eatPiece(x,y);
 stack.push((ChessPiece) o.clone());
 o.setCol(x);
 o.setRow(y);

chessBoard.changeSide();
 }

}

break;
}

}

chessPane.drawPiece();
}

public void eatPiece(int x,int y){
chessPane.getChessPieces().removeIf(e->{
if(e.getCol()==x&&e.getRow()==y){
stack.push(e);
return true;
}
return false;
});
}

public boolean judgeGame(int x,int y){
for(ChessPiece e:chessPane.getChessPieces()){
if(e.getCol()==x&&e.getRow()==y&&(
 e.getType()== PieceType.KINGBLACK||e.getType()==PieceType.KINGWHITE))
return true;
}

return false;
}

public void printTip(char side){
Alert alert = new Alert(Alert.AlertType.INFORMATION);
alert.setContentText((side=='B'?"黑":"白")+"方取得胜利");
alert.setTitle("游戏结束");
alert.showAndWait();
}

}

ResetAction

package com.Exercise3.Controller;

import com.Exercise3.entity.Piece.ChessPiece;
import com.Exercise3.view.ChessPane;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;

import java.util.Stack;

public class ResetAction implements EventHandler<ActionEvent>{
private ChessPane chessPane;
public ResetAction(ChessPane chessPane) {
this.chessPane = chessPane;
}

@Override
public void handle(ActionEvent e) {
Stack<ChessPiece> stack = ReleaseAction.stack;
if(!stack.empty()){
chessPane.getChessPieces().removeIf(o->o.equals(stack.peek()));//去除原来的棋子
chessPane.getChessPieces().add(stack.pop());//将以前压入堆栈的棋子重新加入

chessPane.drawBoard();
chessPane.drawPiece();
}
}
}

实体

棋子

ChessPiece

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.CarStrategy;

public class Car extends ChessPiece {
public Car(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new CarStrategy(getCol(),getRow()));
}
}

Car

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.CarStrategy;

public class Car extends ChessPiece {
public Car(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new CarStrategy(getCol(),getRow()));
}
}

Horse

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.HorseStategy;

public class Horse extends ChessPiece{
public Horse(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new HorseStategy(getCol(),getRow()));
}
}

King

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.KingStrategy;

public class King extends ChessPiece {
public King(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new KingStrategy(getCol(),getRow()));
}
}

Knight

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.KnightStrategy;

public class Knight extends ChessPiece {
public Knight(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new KnightStrategy(getCol(),getRow()));
}
}

Queen

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.QueenStrategy;

public class Queen extends ChessPiece {
public Queen(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new QueenStrategy(getCol(),getRow()));
}
}

Soldier

package com.Exercise3.entity.Piece;

import com.Exercise3.entity.PieceType;
import com.Exercise3.entity.Strategy.SoldierStategy;

public class Soldier extends ChessPiece{
public Soldier(PieceType type, int row, int col) {
super(type, row, col);
setMoveStrategy(new SoldierStategy(getCol(),getRow(),getSide()));
}

}

移动策略

MoveStategy

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.Set;

public interface MoveStrategy {
boolean move(int x, int y, Set<ChessPiece> chessPieces);
}

CarStrategy

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.List;
import java.util.Set;

public class CarStrategy implements MoveStrategy {
private int curX;
private int curY;

public CarStrategy() {
}

public CarStrategy(int curX, int curY) {
this.curX = curX;
this.curY = curY;
}

public boolean move(int x, int y, Set<ChessPiece> chessPieces) {
if(x!=curX&&y!=curY)
return false;
if(isOverPiece(Math.min(curX,x),Math.min(curY,y),
Math.max(curX,x),Math.max(curY,y),chessPieces))
return false;
curX = x;
curY = y;
return true;
}

public static boolean isOverPiece(int stX,int stY,int edX,int edY,Set<ChessPiece> chessPieces){
for(ChessPiece e:chessPieces)
if((e.getRow()>stY&&e.getRow()<edY)&&e.getCol()==stX||
 (e.getCol()>stX&&e.getCol()<edX&&e.getRow()==stY))
return true;
return false;
}

public int getCurX() {
return curX;
}

public void setCurX(int curX) {
this.curX = curX;
}

public int getCurY() {
return curY;
}

public void setCurY(int curY) {
this.curY = curY;
}
}

HorseStrategy

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.List;
import java.util.Set;

public class HorseStategy implements MoveStrategy{
private int curX;
private int curY;

public HorseStategy(int curX, int curY) {
this.curX = curX;
this.curY = curY;
}

@Override
public boolean move(int x, int y, Set<ChessPiece> chessPieces) {
if((Math.abs(curX-x)==1&&Math.abs(curY-y)==2)||
(Math.abs(curX-x)==2&&Math.abs(curY-y)==1)){
curX = x;
curY = y;
return true;
}
return false;
}

public int getCurX() {
return curX;
}

public void setCurX(int curX) {
this.curX = curX;
}

public int getCurY() {
return curY;
}

public void setCurY(int curY) {
this.curY = curY;
}
}

KingStrategy

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.List;
import java.util.Set;

public class KingStrategy implements MoveStrategy {
private int curX;
private int curY;

public KingStrategy(int curX, int cuY) {
this.curX = curX;
this.curY = cuY;
}

@Override
public boolean move(int x, int y, Set<ChessPiece> chessPieces) {
if(Math.abs(curX-x)<=1&&Math.abs(curY-y)<=1){
curX = x;
curY = y;
return true;
}

return false;
}

public int getCurX() {
return curX;
}

public void setCurX(int curX) {
this.curX = curX;
}

public int getCurY() {
return curY;
}

public void setCurY(int curY) {
this.curY = curY;
}
}

KnightStrage

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.List;
import java.util.Map;
import java.util.Set;

public class KnightStrategy implements MoveStrategy {
private int curX;
private int curY;

public KnightStrategy(int curX, int curY) {
this.curX = curX;
this.curY = curY;
}

@Override
public boolean move(int x, int y, Set<ChessPiece> chessPieces) {
if(Math.abs(x-curX)==Math.abs(y-curY)){
if(isOverPiece(Math.min(curX,x),Math.min(curY,y),
 Math.max(curX,x),Math.max(curY,y),chessPieces))
return false;
curX=x;
curY=y;
return true;
}
return false;
}

public static boolean isOverPiece(int stX,int stY,int edX,int edY,Set<ChessPiece> chessPieces){
for(ChessPiece e:chessPieces){
if(e.getCol()-stX==edX-e.getCol()&&edY-e.getRow()==e.getRow()-stY){
System.out.println(e.isSelected()+" "+e.getRow()+" "+e.getCol());
return true;
}
}

return false;
}
public int getCurX() {
return curX;
}

public void setCurX(int curX) {
this.curX = curX;
}

public int getCurY() {
return curY;
}

public void setCurY(int curY) {
this.curY = curY;
}
}

QueeStrategy

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.List;
import java.util.Set;

public class QueenStrategy implements MoveStrategy{
private int curX;
private int curY;

public QueenStrategy(int curX, int curY) {
this.curX = curX;
this.curY = curY;
}

@Override
public boolean move (int x, int y, Set<ChessPiece> chessPieces) {
if(Math.abs(x-curX)==Math.abs(y-curY)||!(x!=curX&&y!=curY)){
if(isOverPiece(Math.min(curX,x),Math.min(curY,y),
 Math.max(curX,x),Math.max(curY,y),chessPieces))
return false;
curX = x;
curY = y;
return true;
}
return false;
}

public boolean isOverPiece (int stX,int stY,int edX,int edY,Set<ChessPiece> chessPieces) {
for(ChessPiece e:chessPieces){
if(e.getRow()!=stY&&e.getCol()!=stX){
return KnightStrategy.isOverPiece(stX,stY,edX,edY,chessPieces);
}
else{
return CarStrategy.isOverPiece(stX,stY,edX,edY,chessPieces);
}
}
return false;
}

public int getCurX() {
return curX;
}

public void setCurX(int curX) {
this.curX = curX;
}

public int getCurY() {
return curY;
}

public void setCurY(int curY) {
this.curY = curY;
}
}

SoldierStrategy

package com.Exercise3.entity.Strategy;

import com.Exercise3.entity.Piece.ChessPiece;

import java.util.List;
import java.util.Set;

public class SoldierStategy implements MoveStrategy{
private int curX;
private int curY;
private char side;
private boolean firstMove = true;

public SoldierStategy(int curX, int curY,char side) {
this.curX = curX;
this.curY = curY;
this.side = side;
}

@Override
public boolean move(int x, int y, Set<ChessPiece> chessPieces) {
//直线移动
if(curY==y){
switch (side){
case 'B': {
 if(isFirstMove()&&(x==curX+1||curX+2==x)){
 setFirstMove(false);
 curY = y;
 curX = x;
 return true;
 }
 else if(!isFirstMove()&&curX+1==x){
 curY = y;
 curX = x;
 return true;
 }
 break;
}

case 'W':{
 if(isFirstMove()&&(x==curX-1||x==curX-2)){
 setFirstMove(false);
 curY = y;
 curX = x;
 return true;
 }
 else if(!isFirstMove()&&curX-1==x){
 curY = y;
 curX = x;
 return true;
 }
 break;
}
}
}

//吃子移动
for(ChessPiece e:chessPieces){
if(Math.abs(e.getRow()-curY)==1){
if(e.getCol()-curX==1&&e.getSide()=='W'||
curX-e.getCol()==1&&e.getSide()=='B'){
 curY = y;
 curX = x;
 return true;
}

}
}

return false;
}

public boolean isFirstMove() {
return firstMove;
}

public void setFirstMove(boolean firstMove) {
this.firstMove = firstMove;
}

public int getCurX() {
return curX;
}

public void setCurX(int curX) {
this.curX = curX;
}

public int getCurY() {
return curY;
}

public void setCurY(int curY) {
this.curY = curY;
}
}

棋子类型

package com.Exercise3.entity;

public enum PieceType {
KINGBLACK("KingBlack","com/Exercise3/img/KingBlack.jpg"),
QUEENBLACK("QueenBlack","com/Exercise3/img/QueenBlack.jpg"),
CARBLACK("CarBlack","com/Exercise3/img/CarBlack.jpg"),
HORSEBLACK("HorseBlack","com/Exercise3/img/HorseBlack.jpg"),
SOLDIERBLACK("SoldierBlack","com/Exercise3/img/SoldierBlack.jpg"),
KNIGHTBLACK("KnightBlack","com/Exercise3/img/KnightBlack.jpg"),

KINGWHITE("KingWhite","com/Exercise3/img/KingWhite.jpg"),
QUEENWHITE("QueenWhite","com/Exercise3/img/QueenWhite.jpg"),
CARWHITE("CarWhite","com/Exercise3/img/CarWhite.jpg"),
HORSEWHITE("HorseWhite","com/Exercise3/img/HorseWhite.jpg"),
SOLDIERWHITE("SoldierWhite","com/Exercise3/img/SoldierWhite.jpg"),
KNIGHTWHITE("KnightWhite","com/Exercise3/img/KnightWhite.jpg");

private String desc;
private PieceType(String desc,String url ){
this.desc = desc;
this.url = url;
}

private String url;

public String getDesc(){
return desc;
}

public String getUrl() {
return url;
}
}

视图

package com.Exercise3.view;

public class ChessBoard {
static ChessBoard chessBoard = null;
private int row;
private int col;
private double cellLength;
private double startX;
private double startY;
private char currSide;

private ChessBoard(double cellLength, double startX, double startY) {
this.row = 8;
this.col = 8;
this.cellLength = cellLength;
this.startX = startX;
this.startY = startY;
this.currSide = 'B';
}

public static ChessBoard getInstance(double cellLength, double startX, double startY){
if(chessBoard == null)
return new ChessBoard(cellLength,startX,startY);
return chessBoard;
}

public ChessBoard getInstance(){
return chessBoard;
}

public int getCol() {
return col;
}

public int getRow() {
return row;
}

public double getCellLength() {
return cellLength;
}

public void changeSide(){
currSide=(currSide=='B'?'W':'B');
}

public void setCellLength(double cellLength) {
this.cellLength = cellLength;
}

public double getStartX() {
return startX;
}

public void setStartX(double startX) {
this.startX = startX;
}

public double getStartY() {
return startY;
}

public void setStartY(double startY) {
this.startY = startY;
}

public char getCurrSide() {
return currSide;
}
}

package com.Exercise3.view;

import com.Exercise3.entity.Piece.*;
import com.Exercise3.entity.PieceType;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.image.*;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;

import java.util.*;

public class ChessPane extends Pane {
private Set<ChessPiece> chessPieces;
private ChessBoard chessBoard;
private Canvas canvas;
private GraphicsContext gc;

public ChessPane(ChessBoard chessBoard) {
this.chessBoard = chessBoard;
setChessPiece();
canvas = new Canvas(900,900);
gc = canvas.getGraphicsContext2D();
draw();
}

public void draw(){
drawBoard();
drawPiece();
getChildren().add(canvas);
}

public void drawBoard(){
gc.clearRect(0,0,900,900);
double x = chessBoard.getStartX();
double y = chessBoard.getStartY();
double cell = chessBoard.getCellLength();

boolean flag = false;
for(int i=0;i<chessBoard.getRow();i++){
flag = !flag;
for(int j=0;j<chessBoard.getCol();j++){
gc.setFill(flag? Color.valueOf("#EDEDED"):Color.valueOf("CDC5BF"));
gc.fillRect(x+j*cell,y+i*cell,cell,cell);
flag = !flag;
}
}

gc.setStroke(Color.GRAY);
gc.strokeRect(x,y,cell*chessBoard.getCol(),cell*chessBoard.getRow());

}

public void drawPiece(){
double cell = chessBoard.getCellLength();
chessPieces.forEach( e->{
if(e.isSelected()){
gc.setFill(Color.valueOf("#6495ED"));
gc.fillRect(chessBoard.getStartX()+e.getCol()*cell,
 chessBoard.getStartY()+e.getRow()*cell,
 cell,cell);
}

Image image = new Image(e.getType().getUrl());
gc.drawImage(image,
 chessBoard.getStartX()+10 + e.getCol() * cell,
 chessBoard.getStartY()+10 + e.getRow() * cell,
 cell-20, cell-20);
});
}

//加入棋子
public void setChessPiece() {
chessPieces = new HashSet<>();
chessPieces.add(new Car(PieceType.CARBLACK,0,0));
chessPieces.add(new Horse(PieceType.HORSEBLACK,1,0));
chessPieces.add(new Knight(PieceType.KNIGHTBLACK,2,0));
chessPieces.add(new King(PieceType.KINGBLACK,3,0));
chessPieces.add(new Queen(PieceType.QUEENBLACK,4,0));
chessPieces.add(new Knight(PieceType.KNIGHTBLACK,5,0));
chessPieces.add(new Horse(PieceType.HORSEBLACK,6,0));
chessPieces.add(new Car(PieceType.CARBLACK,7,0));
for(int i=0;i<8;i++){
chessPieces.add(new Soldier(PieceType.SOLDIERBLACK,i,1));
}

chessPieces.add(new Car(PieceType.CARWHITE,0,7));
chessPieces.add(new Horse(PieceType.HORSEWHITE,1,7));
chessPieces.add(new Knight(PieceType.KNIGHTWHITE,2,7));
chessPieces.add(new King(PieceType.KINGWHITE,3,7));
chessPieces.add(new Queen(PieceType.QUEENWHITE,4,7));
chessPieces.add(new Knight(PieceType.KNIGHTWHITE,5,7));
chessPieces.add(new Horse(PieceType.HORSEWHITE,6,7));
chessPieces.add(new Car(PieceType.CARWHITE,7,7));
for(int i=0;i<8;i++){
chessPieces.add(new Soldier(PieceType.SOLDIERWHITE,i,6));
}
}

public ChessBoard getChessBoard() {
return chessBoard;
}

public void setChessBoard(ChessBoard chessBoard) {
this.chessBoard = chessBoard;
}

public Set<ChessPiece> getChessPieces() {
return chessPieces;
}

public void setChessPieces(Set<ChessPiece> chessPieces) {
this.chessPieces = chessPieces;
}

public Canvas getCanvas() {
return canvas;
}

public void setCanvas(Canvas canvas) {
this.canvas = canvas;
}

public GraphicsContext getGc() {
return gc;
}

public void setGc(GraphicsContext gc) {
this.gc = gc;
}
}

测试

package com.Exercise3;

import com.Exercise3.Controller.PressedAction;
import com.Exercise3.Controller.ReleaseAction;
import com.Exercise3.Controller.ResetAction;
import com.Exercise3.view.ChessBoard;
import com.Exercise3.view.ChessPane;
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;

import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.stage.Stage;

public class Test extends Application {

public static void main(String[] args) {
launch(args);
}

@Override
public void start(Stage primaryStage) {

String MEDIA_URL = "file:/E:/IdeaProjects/Experiment/src/com/Exercise3/music/BackgroundMusic.mp3";
ChessBoard chessBoard = ChessBoard.getInstance(100,40,40);

//添加媒体资源

Media media = new Media(MEDIA_URL);
MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.setAutoPlay(true);
mediaPlayer.setCycleCount(MediaPlayer.INDEFINITE);
mediaPlayer.play();

ChessPane pane = new ChessPane(chessBoard);
pane.setOnMousePressed(new PressedAction(pane,mediaPlayer));

pane.setOnMouseReleased(new ReleaseAction(pane));

BorderPane borderPane = new BorderPane();
borderPane.setCenter(pane);
HBox hBox = new HBox();
hBox.setAlignment(Pos.TOP_CENTER);

Button button = new Button("悔棋");
button.setOnAction(new ResetAction(pane));

hBox.getChildren().add(button);
borderPane.setBottom(hBox);
Scene scene = new Scene(borderPane,900,900);
primaryStage.setScene(scene);
primaryStage.setTitle("国际象棋");
primaryStage.show();

}
}

来源：https://blog.csdn.net/qq_40933929/article/details/90300653