[ニコニコ動画] JavaFXでゲームを作りたい！ part1 [YouTube]

動画

[ゆっくり解説] JavaFXでゲームをつくりたい! part 1 [JavaFX] - YouTube

[ゆっくり解説] JavaFXでゲームをつくりたい！ part1 - ニコニコ動画

素材

BGM: プラスチックアドベンチャー (MusMus) Pop up the mind wings (MusMus) 潮騒アーべント (MusMus) タイルセット: Cute Platformer Sisters | OpenGameArt.org

(Master484さん) キャラチップ: ぴぽや

(ぴぽやさん)

コード

package application;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.image.WritableImage;
import javafx.scene.input.KeyEvent;
import javafx.stage.Stage;

public class Maze extends Application{
    public static void main(String[] args) {
        launch(args);
    }
    public ImageView player1ImgView = new ImageView();
    public ImageView playerImgView =  new ImageView();
    public Image playerMoveImg[][] =  new Image[4][3];
    @Override
    public void start(Stage stage) throws Exception{
//     stage.setHeight(360);
//     stage.setWidth(360);
        stage.setTitle("TheMaze");

        // マップの画像を読み込む
        Path mapPath = Paths.get("image/map.png");
        Image mapImg = new Image(mapPath.toUri().toString());
        ImageView mapImgView = new ImageView(mapImg);

        // プレイヤのタイルセットから歩行グラフィックを切り取る
        Path playerPath1 = Paths.get("image/player1.png");
        Image playerImg1 = new Image(playerPath1.toUri().toString());
        int width = 32;
        int height = 32;
        for(int i = 0; i < 4; i++) {
            for(int j = 0; j < 3; j++) {
                playerMoveImg[i][j] = new WritableImage(playerImg1.getPixelReader()
                        ,width * j, height * i, width, height);
            }
        }

        // プレイヤの初期位置と画像を設定
        player1ImgView = new ImageView(playerMoveImg[0][1]);
        player1ImgView.setLayoutX(32);
        player1ImgView.setLayoutY(32);

        Group group = new Group();
        group.getChildren().addAll(mapImgView,player1ImgView);
        Scene scene = new Scene(group);

        int[][] mapData = getMapData();
        scene.setOnKeyPressed(event -> moveEvent(event, mapData));

        stage.setScene(scene);
        stage.show();
    }
    //キーイベントの処理 キーボードでプレイヤを動かす
        public void moveEvent(KeyEvent event, int[][] mapData) {
            String s = event.getCode().toString();
            //System.out.println(s);
            if(s.equals("DOWN")) {
                player1ImgView.setImage(playerMoveImg[0][0]);
                if( checkMove(mapData, 1, 0)) {
                    player1ImgView.setLayoutY(player1ImgView.getLayoutY() + 32);
                }
            }else if(s.equals("UP")) {
                player1ImgView.setImage(playerMoveImg[3][0]);
                if( checkMove(mapData, -1, 0)) {
                    player1ImgView.setLayoutY(player1ImgView.getLayoutY() - 32);
                }
            }else if(s.equals("LEFT")) {
                player1ImgView.setImage(playerMoveImg[1][0]);
                if( checkMove(mapData, 0, -1)) {
                    player1ImgView.setLayoutX(player1ImgView.getLayoutX() - 32);
                }
            }else if(s.equals("RIGHT")) {
                player1ImgView.setImage(playerMoveImg[2][1]);
                if( checkMove(mapData, 0, 1)) {
                    player1ImgView.setLayoutX(player1ImgView.getLayoutX() + 32);
                }
            }
        }
        // マップの衝突判定
        public boolean checkMove(int[][] mapData, int i, int j) {
            int col = (int)player1ImgView.getLayoutX()/32;
            int row = (int)player1ImgView.getLayoutY()/32;
            if(mapData[row + i][col + j] == 29) {
                return true;
            }else if(mapData[row + i][col + j] == 82){
                return true;
            }else {
                return false;
            }
        }

        // textファイルからmap情報を取得し、int型の配列を返す
        public int[][] getMapData() {
            int [][]mapData = new int[10][10];
            Path path = Paths.get("maptext/mapdata1.txt");
            File file = path.toFile();
            try {
                FileReader filereader = new FileReader(file);
                BufferedReader br = new BufferedReader(filereader);
                String str;
                int i = 0;;
                while((str = br.readLine()) != null) {
                    String[] array = str.split(",");
                    for(int j = 0; j < array.length; j++) {
                        mapData[i][j] = Integer.parseInt(array[j]);
                    }
                    i++;
                }
            br.close();
            }catch(FileNotFoundException e) {
                System.out.println(e);
            }catch (IOException e) {
                System.out.println(e);
            }
            return mapData;
        }
}

動画のウィンドウサイズに関するコード

package application;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class Test0 extends Application{
    public static void main(String[] args) {
        launch(args);
    }
    @Override
    public void start(Stage stage) throws Exception{
        stage.setTitle("Test0");
        stage.setHeight(700);
        stage.setWidth(700);

        // ウィンドウサイズをラベルで表示させる
        Label label1 = new Label();
        label1.textProperty().bind(stage.widthProperty().asString());
        label1.setFont(new Font(20));
        Label wid = new Label("Width: ");
        wid.setFont(new Font(20));
        
        HBox hbox1 = new HBox(wid, label1);
        hbox1.setLayoutX(20);
        hbox1.setLayoutY(40);

        Label label2 = new Label();
        label2.textProperty().bind(stage.heightProperty().asString());
        label2.setFont(new Font(20));
        Label hei = new Label("Height: ");
        hei.setFont(new Font(20));
        
        HBox hbox2 = new HBox(hei, label2);
        hbox2.setLayoutX(20);
        hbox2.setLayoutY(100);

        Rectangle rect1 = new Rectangle(0, 0, 150, 150);
        rect1.setStroke(Color.BLACK);
        rect1.setArcWidth(20.0);
        rect1.setArcHeight(20.0);
        rect1.setFill(null);
        
        Group g = new Group(hbox1, hbox2, rect1);

        Scene scene = new Scene(g);
        stage.setScene(scene);
        stage.show();
    }
}