由于Java是一种后端语言，无法直接实现基于JavaScript的游戏。但是可以使用JavaFX框架来实现一个类似于JavaScript的游戏。

以下是一个简单的贪吃蛇游戏的JavaFX实现：

java 
import javafx.animation.AnimationTimer; 
import javafx.application.Application; 
import javafx.scene.Scene; 
import javafx.scene.canvas.Canvas; 
import javafx.scene.canvas.GraphicsContext; 
import javafx.scene.input.KeyCode; 
import javafx.scene.layout.StackPane; 
import javafx.scene.paint.Color; 
import javafx.stage.Stage; 
 
import java.util.ArrayList; 
import java.util.List; 
import java.util.Random; 
 
public class SnakeGame extends Application { 
 
    private static final int WIDTH = 600; 
    private static final int HEIGHT = 400; 
    private static final int BLOCK_SIZE = 20; 
 
    private List
  
    snake = new ArrayList<>(); 
    private Block food; 
    private Direction direction = Direction.RIGHT; 
    private boolean gameOver = false; 
 
    private Random random = new Random(); 
 
    @Override 
    public void start(Stage primaryStage) throws Exception { 
        Canvas canvas = new Canvas(WIDTH, HEIGHT); 
        GraphicsContext gc = canvas.getGraphicsContext2D(); 
 
        StackPane root = new StackPane(canvas); 
        Scene scene = new Scene(root); 
 
        scene.setOnKeyPressed(event -> { 
            if (event.getCode() == KeyCode.UP && direction != Direction.DOWN) { 
                direction = Direction.UP; 
            } else if (event.getCode() == KeyCode.DOWN && direction != Direction.UP) { 
                direction = Direction.DOWN; 
            } else if (event.getCode() == KeyCode.LEFT && direction != Direction.RIGHT) { 
                direction = Direction.LEFT; 
            } else if (event.getCode() == KeyCode.RIGHT && direction != Direction.LEFT) { 
                direction = Direction.RIGHT; 
            } 
        }); 
 
        primaryStage.setScene(scene); 
        primaryStage.show(); 
 
        snake.add(new Block(WIDTH / 2, HEIGHT / 2)); 
 
        food = generateFood(); 
 
        new AnimationTimer() { 
            long lastUpdate = 0; 
 
            @Override 
            public void handle(long now) { 
                if (now - lastUpdate >= 100_000_000) { 
                    gc.setFill(Color.BLACK); 
                    gc.fillRect(0, 0, WIDTH, HEIGHT); 
 
                    if (gameOver) { 
                        gc.setFill(Color.WHITE); 
                        gc.fillText("Game Over", WIDTH / 2 - 50, HEIGHT / 2); 
                        stop(); 
                        return; 
                    } 
 
                    moveSnake(); 
                    checkCollision(); 
                    drawSnake(gc); 
                    drawFood(gc); 
 
                    lastUpdate = now; 
                } 
            } 
        }.start(); 
    } 
 
    private void moveSnake() { 
        for (int i = snake.size() - 1; i > 0; i--) { 
            Block current = snake.get(i); 
            Block previous = snake.get(i - 1); 
            current.setX(previous.getX()); 
            current.setY(previous.getY()); 
        } 
 
        Block head = snake.get(0); 
        switch (direction) { 
            case UP: 
                head.setY(head.getY() - BLOCK_SIZE); 
                break; 
            case DOWN: 
                head.setY(head.getY() + BLOCK_SIZE); 
                break; 
            case LEFT: 
                head.setX(head.getX() - BLOCK_SIZE); 
                break; 
            case RIGHT: 
                head.setX(head.getX() + BLOCK_SIZE); 
                break; 
        } 
    } 
 
    private void checkCollision() { 
        Block head = snake.get(0); 
 
        if (head.getX() < 0 || head.getX() >= WIDTH || head.getY() < 0 || head.getY() >= HEIGHT) { 
            gameOver = true; 
            return; 
        } 
 
        for (int i = 1; i < snake.size(); i++) { 
            Block current = snake.get(i); 
            if (head.getX() == current.getX() && head.getY() == current.getY()) { 
                gameOver = true; 
                return; 
            } 
        } 
 
        if (head.getX() == food.getX() && head.getY() == food.getY()) { 
            snake.add(new Block(food.getX(), food.getY())); 
            food = generateFood(); 
        } 
    } 
 
    private void drawSnake(GraphicsContext gc) { 
        gc.setFill(Color.WHITE); 
        for (Block block : snake) { 
            gc.fillRect(block.getX(), block.getY(), BLOCK_SIZE, BLOCK_SIZE); 
        } 
    } 
 
    private void drawFood(GraphicsContext gc) { 
        gc.setFill(Color.RED); 
        gc.fillRect(food.getX(), food.getY(), BLOCK_SIZE, BLOCK_SIZE); 
    } 
 
    private Block generateFood() { 
        int x = random.nextInt(WIDTH / BLOCK_SIZE) * BLOCK_SIZE; 
        int y = random.nextInt(HEIGHT / BLOCK_SIZE) * BLOCK_SIZE; 
        return new Block(x, y); 
    } 
 
    private enum Direction { 
        UP, DOWN, LEFT, RIGHT 
    } 
 
    private static class Block { 
        private int x; 
        private int y; 
 
        public Block(int x, int y) { 
            this.x = x; 
            this.y = y; 
        } 
 
        public int getX() { 
            return x; 
        } 
 
        public void setX(int x) { 
            this.x = x; 
        } 
 
        public int getY() { 
            return y; 
        } 
 
        public void setY(int y) { 
            this.y = y; 
        } 
    } 
 
    public static void main(String[] args) { 
        launch(args); 
    } 
} 

  

该游戏使用JavaFX的Canvas来绘制游戏界面，使用AnimationTimer来实现游戏循环。游戏中的蛇和食物都是由Block类表示的，Block类包含了坐标信息。游戏中的方向由Direction枚举表示。游戏中的逻辑包括蛇的移动、碰撞检测、食物生成等。游戏中的按键事件由Scene的setOnKeyPressed方法处理。