Code Sketch

// 1. ??? ??????? ??? ???????????? ?????????? ?????
cleari()
// ????? ????? ????????? ?????????? (Sky Gradient Backdrop)
setBackground(cm.linearGradient(0, -200, Color(135, 206, 250), 0, 200, Color(245, 245, 250), false))

// ??????? ????? ???? (Styled Ground)
val groundY: Double = -100.0
val groundLine = Picture.rectangle(620, 10)
groundLine.setFillColor(Color(34, 139, 34)) // ????? ???? ?????
groundLine.setPenColor(noColor)
groundLine.setPosition(-310.0, groundY - 5.0)
draw(groundLine)

// 2. ???????????? ???????? ????????? (????? ??? ??)
val sun = Picture.circle(25)
sun.setFillColor(Color(255, 215, 0)) // ?????? ?????? ?????
sun.setPenColor(noColor)
sun.setPosition(180.0, 130.0)
draw(sun)

val cloud1 = Picture.circle(20)
cloud1.setFillColor(Color(255, 255, 255, 200)) // ???????? ?????? ??
cloud1.setPenColor(noColor)
cloud1.setPosition(-120.0, 100.0)
draw(cloud1)

val cloud2 = Picture.circle(15)
cloud2.setFillColor(Color(255, 255, 255, 200))
cloud2.setPenColor(noColor)
cloud2.setPosition(-100.0, 105.0)
draw(cloud2)

// 3. ????? ????? ??????????
// ????? ???? (Dino)
val dinoX: Double = -150.0
var dinoY: Double = groundY
val dino = Picture.rectangle(40, 40)
dino.setFillColor(Color(46, 139, 87)) // ??-????? ????
dino.setPenColor(noColor)
dino.setPosition(dinoX, dinoY)
draw(dino)

// ???????????? ?????? (Cactus)
var cactusX: Double = 300.0
val cactus = Picture.rectangle(25, 50)
cactus.setFillColor(Color(178, 34, 34)) // ??? ??? ??????
cactus.setPenColor(noColor)
cactus.setPosition(cactusX, groundY)
draw(cactus)

// 4. ??????? ??? ??? ???????????
var yVelocity: Double = 0.0
val gravity: Double = -1.2
var isJumping: Boolean = false

var cactusSpeed: Double = 6.0
var score: Int = 0
var bgChanged: Boolean = false

// ????? ???????? ?????
var scoreText = Picture.text(s"Score: $score", 22)
scoreText.setFillColor(Color(25, 25, 112)) // ?????? ???? ???
scoreText.setPosition(-260.0, 150.0)
draw(scoreText)

// ?? ??????? ???????? ?????? ????? ?????
var milestoneText = Picture.text("", 28)
milestoneText.setFillColor(Color(255, 69, 0))
milestoneText.setPosition(-120.0, 20.0)
draw(milestoneText)

println("??? ???? ????! ??? ?????????? SPACEBAR ?????.")

// 5. ????? ??????? ??? (Game Loop)
animate {
    // ????? ?? ????????? ??? ?????
    if (isKeyPressed(Kc.VK_SPACE) && !isJumping) {
        yVelocity = 17.5 
        isJumping = true
    }

    // ??? ??? ?????????? ???????
    if (isJumping) {
        dinoY += yVelocity
        yVelocity += gravity
        
        if (dinoY <= groundY) {
            dinoY = groundY
            yVelocity = 0.0
            isJumping = false
        }
        dino.setPosition(dinoX, dinoY)
    }

    // ???????? ??????? ?????? ??????
    cactusX -= cactusSpeed
    
    // ?????? ??? ???????? (Score Increments)
    if (cactusX < -310.0) {
        cactusX = 300.0          
        score += 1               
        cactusSpeed += 0.4       // ?????? ????? ?????
        
        // ????? ??????? ??????????? ????? ????
        scoreText.invisible()
        scoreText = Picture.text(s"Score: $score", 22)
        scoreText.setFillColor(Color(25, 25, 112))
        scoreText.setPosition(-260.0, 150.0)
        draw(scoreText)
        
        // ?? ??????? ???????? ?????????? ????? "Night Mode" ????? ??? ????? ????? ?????!
        if (score >= 50 && !bgChanged) {
            // ????? ?????-????? ???? ??????????
            setBackground(cm.linearGradient(0, -200, Color(25, 25, 112), 0, 200, Color(0, 0, 0), false))
            
            // ???????? ??????????? ?????? ??? ????
            sun.setFillColor(Color(240, 248, 255))
            
            // ???????? ??? ?????
            cactus.setFillColor(Color(255, 215, 0))
            
            // "VERY GOOD" ????? ????????
            milestoneText.invisible()
            milestoneText = Picture.text("VERY GOOD! ?", 28)
            milestoneText.setFillColor(Color(255, 215, 0))
            milestoneText.setPosition(-120.0, 20.0)
            draw(milestoneText)
            
            bgChanged = true
        }
    }
    cactus.setPosition(cactusX, groundY)

    // 6. ??? ????? ??????? ???? (Collision)
    if (dino.collidesWith(cactus)) {
        stopAnimation()
        
        val gameOverText = Picture.text("GAME OVER! ?", 32)
        gameOverText.setFillColor(Color(220, 20, 60))
        gameOverText.setPosition(-110.0, 60.0)
        draw(gameOverText)
        
        println("??? ?????! ????? ????? ?????: " + score)
    }
}

// ??????? ??? ???? ??????? ??????????
activateCanvas()