напиши код на kotlin для игры змейка

Конечно! Вот пример кода на Kotlin для игры "Змейка":

import javafx.animation.KeyFrame
import javafx.animation.Timeline
import javafx.application.Application
import javafx.scene.Group
import javafx.scene.Scene
import javafx.scene.canvas.Canvas
import javafx.scene.canvas.GraphicsContext
import javafx.scene.input.KeyCode
import javafx.scene.paint.Color
import javafx.stage.Stage
import javafx.util.Duration
import java.util.*

class SnakeGame : Application() {
    private val canvasWidth = 400.0
    private val canvasHeight = 400.0
    private val gridSize = 20.0
    private val initialSnakeLength = 3

    private var snakeX = 0
    private var snakeY = 0
    private var snakeLength = initialSnakeLength
    private var direction = Direction.RIGHT
    private var gameOver = false

    private val snakeBody = LinkedList<Pair<Int, Int>>()
    private var foodX = 0
    private var foodY = 0

    override fun start(primaryStage: Stage) {
        val root = Group()
        val canvas = Canvas(canvasWidth, canvasHeight)
        val gc = canvas.graphicsContext2D

        root.children.add(canvas)

        generateFood()

        val gameLoop = Timeline()
        gameLoop.keyFrames.add(KeyFrame(Duration.seconds(0.1), {
            if (!gameOver) {
                update()
                draw(gc)
            }
        }))
        gameLoop.cycleCount = Timeline.INDEFINITE

        primaryStage.title = "Snake Game"
        primaryStage.scene = Scene(root)
        primaryStage.scene.setOnKeyPressed { event ->
            when (event.code) {
                KeyCode.UP -> direction = Direction.UP
                KeyCode.DOWN -> direction = Direction.DOWN
                KeyCode.LEFT -> direction = Direction.LEFT
                KeyCode.RIGHT -> direction = Direction.RIGHT
            }
        }

        gameLoop.play()
       ...