【发布时间】：2018-05-12 13:57:52
【问题描述】：
我正在创建一个国际象棋游戏，但我被困在一件事上几天。 所以我想在用户移动一个图形时创建事件，图形的图像替换为另一个带边框的图像，当用户移开时，图像必须恢复正常。这是完整的代码。
Project 的文件夹称为 sample，图像的文件夹称为 Sprites。 类的文件夹称为Figures。我将链接黑色典当的图像。
package sample;
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
import sample.Figures.*;
public class Main extends Application {
@Override
public void start(Stage primaryStage){
primaryStage.setTitle("ChessGame");
primaryStage.getIcons().add(new Image("/sample/Chess-icon.png"));
GridPane root = new GridPane();
final GridPane group = new GridPane();
group.setPadding(new Insets(15, 25, 25, 25));
for (int i = 0 ; i < 8 ; i++) {
for (int j = 0 ; j < 8 ; j++) {
Rectangle rectangle = new Rectangle( 50, 50);
if(j % 2 == 0 && (i % 2 == 0)) {
rectangle.setFill(Color.BEIGE);
}
else if(!((j + 2) % 2 == 0) && !((i + 2) % 2 == 0)) {
rectangle.setFill(Color.BEIGE);
}
else {
rectangle.setFill(Color.GRAY);
}
group.add(rectangle,i,j);
}
}
//FIGURES
//Black
//Pawns
final blackPawn BlackP_1 = new blackPawn(0,1,64,65);
group.add(BlackP_1.IMG,BlackP_1.x,BlackP_1.y);
BlackP_1.IMG.setOnMouseEntered(new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
group.getChildren().remove(64,65);
group.add(BlackP_1.IMGglow,0,1);
}
});
BlackP_1.IMGglow.setOnMouseExited(new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
group.getChildren().remove(64,65);
group.add(BlackP_1.IMG,BlackP_1.x,BlackP_1.y);
}
});
blackPawn BlackP_2 = new blackPawn(1,1);
group.add(BlackP_2.IMG,BlackP_2.x,BlackP_2.y);
blackPawn BlackP_3 = new blackPawn(2,1);
group.add(BlackP_3.IMG,BlackP_3.x,BlackP_3.y);
blackPawn BlackP_4 = new blackPawn(3,1);
group.add(BlackP_4.IMG,BlackP_4.x,BlackP_4.y);
blackPawn BlackP_5 = new blackPawn(4,1);
group.add(BlackP_5.IMG,BlackP_5.x,BlackP_5.y);
blackPawn BlackP_6 = new blackPawn(5,1);
group.add(BlackP_6.IMG,BlackP_6.x,BlackP_6.y);
blackPawn BlackP_7 = new blackPawn(6,1);
group.add(BlackP_7.IMG,BlackP_7.x,BlackP_7.y);
blackPawn BlackP_8 = new blackPawn(7,1);
group.add(BlackP_8.IMG,BlackP_8.x,BlackP_8.y);
//Rooks
blackRook BlackR_1 = new blackRook();
group.add(BlackR_1.IMG,7,0);
blackRook BlackR_2 = new blackRook();
group.add(BlackR_2.IMG,0,0);
//Knights
blackKnight BlackK_1 = new blackKnight();
group.add(BlackK_1.IMG,1,0);
blackKnight BlackK_2 = new blackKnight();
group.add(BlackK_2.IMG,6,0);
//Bishop
blackBishop BlackB_1 = new blackBishop();
group.add(BlackE_1.IMG,2,0);
blackBishop BlackB_2 = new blackBishop();
group.add(BlackE_2.IMG,5,0);
//Queen
blackQueen blackQueen= new blackQueen();
group.add(blackQueen.IMG,3,0);
//King
blackKing blackking = new blackKing();
group.add(blackking.IMG,4,0);
//WHITE
//Pawns
final whitePawn WhiteP_1 = new whitePawn();
group.add(WhiteP_1.IMG,0,6);
whitePawn WhiteP_2 = new whitePawn();
group.add(WhiteP_2.IMG,1,6);
whitePawn WhiteP_3 = new whitePawn();
group.add(WhiteP_3.IMG,2,6);
whitePawn WhiteP_4 = new whitePawn();
group.add(WhiteP_4.IMG,3,6);
whitePawn WhiteP_5 = new whitePawn();
group.add(WhiteP_5.IMG,4,6);
whitePawn WhiteP_6 = new whitePawn();
group.add(WhiteP_6.IMG,5,6);
whitePawn WhiteP_7 = new whitePawn();
group.add(WhiteP_7.IMG,6,6);
whitePawn WhiteP_8 = new whitePawn();
group.add(WhiteP_8.IMG,7,6);
//Rooks
whiteRook WhiteR_1 = new whiteRook();
group.add(WhiteR_1.IMG,0,7);
whiteRook WhiteR_2 = new whiteRook();
group.add(WhiteR_2.IMG,7,7);
//Knights
whiteKnight WhiteK_1 = new whiteKnight();
group.add(WhiteK_1.IMG,1,7);
whiteKnight WhiteK_2 = new whiteKnight();
group.add(WhiteK_2.IMG,6,7);
//Bishop
whiteBishop WhiteB_1 = new whiteBishop();
group.add(WhiteB_1.IMG,2,7);
whiteBishop WhiteB_2 = new whiteBishop();
group.add(WhiteB_2.IMG,5,7);
//Queen
whiteQueen whitequeen = new whiteQueen();
group.add(whitequeen.IMG,3,7);
//King
whiteKing whiteking = new whiteKing();
group.add(whiteking.IMG,4,7);
root.getChildren().add(group);
root.setStyle("-fx-background-color: #C1D1E8;");
Scene scene = new Scene(root, 450, 440);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
黑棋类
package sample.Figures;
import javafx.scene.image.ImageView;
public class blackPawn {
public int x;
public int y;
public int start;
public int end;
public ImageView IMG = new ImageView("sample/Sprites/blackPawn.png");
public ImageView IMGglow = new ImageView("sample/Sprites/blackPawnStroke.png");
public blackPawn(int x,int y)
{
this.x = x;
this.y = y;
}
public blackPawn(int x,int y,int start,int end)
{
this.x = x;
this.y = y;
this.start = start;
this.end = end;
}
}
【问题讨论】：