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在KeyEvent方法Java FXML中读取其他参数

• 问答

我目前正在制作2D Grid游戏，其中角色在WASD上移动（以及在屏幕按钮上移动，但这是以后的功能）。我的keyevent方法不允许将其他参数读入其中，因此代码无法运行。不确定如何编码以允许其他参数。这是侦听器的代码

理想情况下，我希望能够运行以下内容：

public void keypressed(KeyEvent e,Player player,Cell[][] goldPosition etc.) {

        if (e.getcode() == KeyCode.W) {
            player.moveUp(player);
            detectMovement(goldPosition,trapPosition,player,pane_Board,applePosition);

编辑：我被告知要添加可执行代码，所以我要确保包括大多数内容。但实际上，我只需要知道如何执行允许在其中包含额外参数的keyevent代码即可。谢谢

package minergame.gui;

import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.text.Text;
import javafx.scene.text.TextFlow;
import javafx.stage.Stage;
import minergame.engine.*;


import java.util.Random;
import java.util.Scanner;

public class Controller {
    private GameEngine engine = new GameEngine(10);
    private int score = 0;
    private int d = 5;

    @FXML
    private Label lbl_Score;

    @FXML
    private Label lbl_Stamina;

    @FXML
    private GridPane pane_Board;

    @FXML
    private BorderPane border_Pane;

    @FXML
    public void initialize() {
        //instantiate player class
        Player player = new Player();

        //Scoreboard for score and stamina

        lbl_Score.setText("Score: " + Integer.toString(score));

      lbl_Stamina.setText("Stamina: " + Integer.toString(player.getStamina()));



        /**
         * TO DO
         * HBox scoreboard is irrelevant now. Labels are used,need to be replaced throughout code when updating
         *score and stamina etc.
         */


        //gold coord list
        Cell[][] goldPosition = new Cell[10][10];

        //trap coord list
        Cell[][] trapPosition = new Cell[10][10];

        //apple coord list
        Cell[][] applePosition = new Cell[10][10];

        //prompt user to select difficulty
        //selectDifficulty();
        //initialise the game map
        createMap(pane_Board,goldPosition,applePosition);

        //FOR DEBUGGING print gold location
        for(int i = 0; i < goldPosition.length; i++) {
            for (int j = 0; j < goldPosition.length; j++) {
                if (goldPosition[i][j]!=null)
                System.out.println("row:"+ i + " col: " + j);
            }
        }

    } 

    @FXML
    public void keypressed(KeyEvent e) {
        //KEYCODE W
        if (e.getcode() == KeyCode.W) {
            player.moveUp(player);
            detectMovement(goldPosition,applePosition);
            updateGUI(pane_Board,applePosition);

        } //KEYCODE D
        else if (e.getcode() == KeyCode.D) {
            player.moveRight(player);
            detectMovement(goldPosition,applePosition);

        } //KEYCODE S
        else if (e.getcode() == KeyCode.S) {
            player.moveDown(player);
            detectMovement(goldPosition,applePosition);

        } //KEYCODE A
        else if (e.getcode() == KeyCode.A) {
            player.moveLeft(player);
            detectMovement(goldPosition,applePosition);
        }
    }

    //this needs to be changed or deleted
    public void updateScore(HBox scoreBoard,Player player) {
        scoreBoard.getchildren().clear();
        scoreBoard.getchildren().add(new Text("Score: " + Integer.toString(score)));
        scoreBoard.getchildren().add(new Text("Stamina: " + Integer.toString(player.getStamina())));
    }

    @FXML
    public void detectMovement(Cell[][] goldPosition,Cell[][] trapPosition,GridPane pane,Cell[][] applePosition) {
        //detect gold
        if (goldPosition[player.getPlayerRow()][player.getPlayerCol()] instanceof Gold) {
            pane.getchildren().clear();
            goldPosition[player.getPlayerRow()][player.getPlayerCol()] = null;
            pane.add(engine.getMap()[player.getPlayerRow()][player.getPlayerCol()] = player,player.getPlayerCol(),player.getPlayerRow());
            score++;
            player.setStamina(player.getStamina()+1);

            //detect trap
        } else if (trapPosition[player.getPlayerRow()][player.getPlayerCol()] instanceof Trap) {
            pane.getchildren().clear();
            pane.add(engine.getMap()[player.getPlayerRow()][player.getPlayerCol()] = player,player.getPlayerRow());
            player.setStamina(player.getStamina() - 4);


            //detect apple
        } else if (applePosition[player.getPlayerRow()][player.getPlayerCol()] instanceof Apple) {
            pane.getchildren().clear();
            applePosition[player.getPlayerRow()][player.getPlayerCol()] = null;
            pane.add(engine.getMap()[player.getPlayerRow()][player.getPlayerCol()] = player,player.getPlayerRow());
            player.setStamina(player.getStamina()+3);

        } else {
            pane.getchildren().clear();
            pane.add(engine.getMap()[player.getPlayerRow()][player.getPlayerCol()] = player,player.getPlayerRow());
        }
    }

    @FXML
    public void updateGUI(GridPane pane,Cell[][] goldPosition,Cell[][] applePosition) {
        //repopulate grid
        for (int i = 0; i < engine.getSize(); i++) {
            for (int j = 0; j < engine.getSize(); j++) {
                pane.add(engine.getMap()[i][j] = new Cell(),j,i);
            }
        }
        addGold(goldPosition,pane_Board);
        addTrap(trapPosition,pane_Board);
        addApple(applePosition,pane_Board);
        //updateScore(scoreBoard,player);
    }

    public void selectDifficulty() {
        Scanner input = new Scanner(System.in);
        System.out.println("Let's play! Enter difficulty to start (0 - 10)");
        d = input.nextInt();
    }

    @FXML
    public void createMap(GridPane pane,Cell[][] applePosition) {
        //create map
        for (int i = 0; i < engine.getSize(); i++) {
            for (int j = 0; j < engine.getSize(); j++) {
                pane.add(engine.getMap()[i][j] = new Cell(),i);
            }
        }

        //add player to random position on map
        Random random = new Random();
        player.setPlayerRow(random.nextInt(engine.getSize()));
        player.setPlayerCol(random.nextInt(engine.getSize()));
        pane.add(engine.getMap()[player.getPlayerRow()][player.getPlayerCol()] = player,player.getPlayerRow());

        //add gold to random positions on map
        int goldCount = 0;
        while(goldCount < 10) {
            int randomRow2 = random.nextInt(engine.getSize());
            int randomCol2 = random.nextInt(engine.getSize());
            if (randomRow2 != player.getPlayerRow() && randomCol2 != player.getPlayerCol() &&
                    !(goldPosition[randomRow2][randomCol2] instanceof Gold)) {
                goldCount++;
                goldPosition[randomRow2][randomCol2] = new Gold();
            }
        }
        addGold(goldPosition,pane_Board);

        //add traps to random positions on map
        int trapCount = 0;
        while(trapCount < d) {
            int randomRow3 = random.nextInt(engine.getSize());
            int randomCol3 = random.nextInt(engine.getSize());
            if (randomRow3 != player.getPlayerRow() && randomCol3 != player.getPlayerCol() &&
                    !(goldPosition[randomRow3][randomCol3] instanceof Gold) &&
                    !(goldPosition[randomRow3][randomCol3] instanceof Trap)) {
                trapPosition[randomRow3][randomCol3] = new Trap();
                trapCount++;
            }
        }
        addTrap(trapPosition,pane_Board);

        //add apples to random positions on map
        int appleCount = 0;
        while(appleCount < (15 - d)) {
            int randomRow4 = random.nextInt(engine.getSize());
            int randomCol4 = random.nextInt(engine.getSize());
            if (randomRow4 != player.getPlayerRow() && randomCol4 != player.getPlayerCol() &&
                    !(goldPosition[randomRow4][randomCol4] instanceof Apple) &&
                    !(goldPosition[randomRow4][randomCol4] instanceof Gold) &&
                    !(trapPosition[randomRow4][randomCol4] instanceof Trap)) {
                applePosition[randomRow4][randomCol4] = new Apple();
                appleCount++;
            }
        }
        addApple(applePosition,pane_Board);
    }

    public void addGold(Cell[][] list,GridPane pane) {
        for (int i = 0; i < list.length; i++) {
            for (int j = 0; j < list.length; j++) {
                if (list[i][j] != null)
                    pane.add(list[i][j] = new Gold(),i);
            }
        }
    }

    public void addTrap(Cell[][] list,GridPane pane) {
        for (int i = 0; i < list.length; i++) {
            for (int j = 0; j < list.length; j++) {
                if (list[i][j] != null)
                    pane.add(list[i][j] = new Trap(),i);
            }
        }
    }

    public void addApple(Cell[][] list,GridPane pane) {
        for (int i = 0; i < list.length; i++) {
            for (int j = 0; j < list.length; j++) {
                if (list[i][j] != null)
                    pane.add(list[i][j] = new Apple(),i);
            }
        }
    }
}

FXML代码

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>


<BorderPane id="border_Pane" onKeypressed="#keypressed" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/10.0.2-internal" xmlns:fx="http://javafx.com/fxml/1" fx:controller="minergame.gui.Controller">
   <top>
      <HBox id="scoreBoard" prefHeight="49.0" prefWidth="600.0" BorderPane.alignment="CENTER">
         <children>
            <Label fx:id="lbl_Score" prefHeight="17.0" prefWidth="142.0" text="Score">
               <font>
                  <Font size="20.0" />
               </font>
            </Label>
            <Label fx:id="lbl_Stamina" prefHeight="17.0" prefWidth="142.0" text="Stamina">
               <font>
                  <Font size="20.0" />
               </font>
            </Label>
         </children></HBox>
   </top>
   <center>
      <GridPane fx:id="pane_Board" BorderPane.alignment="CENTER">
        <columnConstraints>
          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" percentWidth="10" prefWidth="100.0" />
          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" percentWidth="10" prefWidth="100.0" />
        </columnConstraints>
        <rowConstraints>
          <RowConstraints minHeight="10.0" percentHeight="10" prefHeight="30.0" vgrow="SOMETIMES" />
          <RowConstraints minHeight="10.0" percentHeight="10" prefHeight="30.0" vgrow="SOMETIMES" />
          <RowConstraints minHeight="10.0" percentHeight="10" prefHeight="30.0" vgrow="SOMETIMES" />
        </rowConstraints>
      </GridPane>
   </center>
   <right>
      <VBox prefHeight="200.0" prefWidth="100.0" BorderPane.alignment="CENTER">
         <children>
            <Button mnemonicParsing="false" text="placeholder" />
         </children>
      </VBox>
   </right>
</BorderPane>

电池（金，苹果等）

package minergame.engine;

import javafx.scene.layout.Pane;

public class Cell extends Pane {


    public Cell() {
        setStyle("-fx-border-color: black");
        this.setPrefSize(100,100);
    }
}

任何提示将不胜感激。谢谢！

haishizhende 回答：在KeyEvent方法Java FXML中读取其他参数
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