JavaFx实现拼图游戏

import javafx.application.Application;import javafx.event.EventHandler;import javafx.geometry.Rectangle2D;import javafx.scene.Scene;import javafx.scene.control.Alert;import javafx.scene.control.Alert.AlertType;import javafx.scene.image.Image;import javafx.scene.image.ImageView;import javafx.scene.input.MouseEvent;import javafx.scene.layout.BorderPane;import javafx.scene.layout.GridPane;import javafx.scene.layout.VBox;import javafx.stage.Stage;import java.util.Random; public class myJigsaw extends Application { public int m;   //m是不在随机数组的那个数字 ImageView[] imageViews = new ImageView[9]; public static void main(String[] args) {  Application.launch(args); }   @Override public void start(Stage arg0) throws Exception {  init(arg0); } public void init(Stage stage) {  int[] n = random();    //自定义的函数，产生逆序数为偶数的不重复数组   Image image = new Image("1.png");    GridPane gridPane = new GridPane();   for(int i = 0, k = 0; i <= 2; ++i) {   for(int j = 0; j <= 2; ++j, ++k) {    imageViews[k] = new ImageView(image);  //初始化数组    imageViews[k].setOnMouseClicked(new myevent());  //设置点击事件    imageViews[k].setViewport(new Rectangle2D(100 * j, 100 * i, 100, 100));    //切割图片   }  }   gridPane.add(imageViews[n[0]], 0, 0);       //按照产生的随机数将imageView数组加入面板  gridPane.add(imageViews[n[1]], 1, 0);  gridPane.add(imageViews[n[2]], 2, 0);  gridPane.add(imageViews[n[3]], 0, 1);  gridPane.add(imageViews[n[4]], 1, 1);  gridPane.add(imageViews[n[5]], 2, 1);  gridPane.add(imageViews[n[6]], 0, 2);  gridPane.add(imageViews[n[7]], 1, 2);  m = findnum(n);             //找出那个不在随机数组里面的数字  ImageView incomp = new ImageView(imageViews[m].getImage());    //用于显示空格子的图片  ImageView comp = new ImageView(image);          //用于显示完整的大图  incomp.setViewport(imageViews[m].getViewport());  Image image2 = new Image("2.png");         //2.png为一个透明图，放在空格子中  imageViews[m].setImage(image2);  gridPane.add(imageViews[m], 2, 2);  gridPane.setGridLinesVisible(true);  BorderPane borderPane = new BorderPane(gridPane);  VBox right = new VBox(20, incomp, comp);  borderPane.setRight(right);  Scene scene = new Scene(borderPane, 820, 420);  stage.setScene(scene);  stage.setResizable(false);  stage.show();  }  public int[] random() {    //生成8个不重复的逆序数为偶数的数字  int[] ran = new int[8];  while(iso(ran) == false) {   ran = random_num();  }  return ran;  }  public int[] random_num() {  //生成8个不重复数  int r[] = new int[8];  Random random = new Random();  for(int i = 0; i < 8; ++i) {   r[i] = random.nextInt(9);   for(int j = 0;j < i; ++j) {    while(r[i] == r[j]) {     i--;     break;    }   }  }  return r; }  public boolean iso(int[] num) {   //判断逆序数是否为偶数  int sum = 0;  for(int i = 0; i <= 6; ++i) {   for(int j = i; j <= 7; j++) {    if(num[i] > num[j]) {     sum++;    }   }  }  if((sum % 2) == 0 && sum != 0) {   return true;  }   return false;  }  class myevent implements EventHandler<MouseEvent> {    //点击事件的实现   @Override  public void handle(MouseEvent arg0) {  // TODO Auto-generated method stub   ImageView img = (ImageView) arg0.getSource();   double sx = img.getLayoutX();   double sy = img.getLayoutY();   double dispx = sx - imageViews[m].getLayoutX();   double dispy = sy - imageViews[m].getLayoutY();   if((dispx == -100) && (dispy == 0 )) {    //点击的空格左边的格子    swapimg(img, imageViews[m]);    //交换imageView    if(issucc(imageViews)) {       //判断是否拼成功     Alert alert = new Alert(AlertType.WARNING, "成功！");     alert.show();    }   }    else if ((dispx == 0) && (dispy == -100)) {  //上面的格子    swapimg(img, imageViews[m]);    if(issucc(imageViews)) {     Alert alert = new Alert(AlertType.WARNING, "成功！");     alert.show();    }   }   else if((dispx == 100) && (dispy == 0)) {    //右边的格子    swapimg(img, imageViews[m]);    if(issucc(imageViews)) {     Alert alert = new Alert(AlertType.WARNING, "成功！");     alert.show();    }   }   else if((dispx == 0) && (dispy == 100)) {    //下面的格子    swapimg(img, imageViews[m]);    if(issucc(imageViews)) {     Alert alert = new Alert(AlertType.WARNING, "成功！");     alert.show();    }   }  }  public void swapimg(ImageView i1, ImageView i2) {    //交换两个imageView的实现   int row1 = GridPane.getRowIndex(i1);   int colu1 = GridPane.getColumnIndex(i1);   int row2 = GridPane.getRowIndex(i2);   int colu2 = GridPane.getColumnIndex(i2);    GridPane.setRowIndex(i1, row2);   GridPane.setColumnIndex(i1, colu2);   GridPane.setRowIndex(i2, row1);   GridPane.setColumnIndex(i2, colu1);  } } public boolean issucc(ImageView[] imageViews) {        //判断是否拼成功  for(int i = 0; i <= 8; ++i) {   if(i != 3 * GridPane.getRowIndex(imageViews[i]) + GridPane.getColumnIndex(imageViews[i])) {    return false;   }  }   return true; }  public int findnum(int[] n) {            //找出m  for(int j = 0; j <= 8; ++j) {   if((j == n[0]) || (j == n[1]) || (j == n[2]) || (j == n[3]) || (j == n[4]) || (j == n[5]) || (j == n[6]) || (j == n[7])) {   }   else {    return j;   }  }  return -1; }  }