/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// Define a class for enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.update = function () {
		if (player.isInAir) {
			// Only move when the player is in the air
			self.x -= self.speed;
		}
		if (self.x < -50) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
// Import the tween plugin
// Define a class for the player character
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 20;
	self.gravity = 4; // Decrease gravity effect
	self.isInAir = false; // Variable to track if the player is in the air or not
	self.update = function () {
		// Apply gravity to the player
		self.y += self.gravity;
		// Ensure the player doesn't fall below the ground level
		if (self.y > 2732 / 2) {
			self.y = 2732 / 2;
			self.isInAir = false; // Player is not in the air
			self.isJumping = false; // Player is not jumping
		} else {
			self.isInAir = true; // Player is in the air
		}
	};
});

/**** 
* Initialize Game
****/ 
// Add tween to play again button to make it scale up and down
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Sky blue background
});

/**** 
* Game Code
****/ 
// Variables to track jump power and hold time
//<Assets used in the game will automatically appear here>
// Import the tween plugin
// Add tween to play again button to make it scale up and down
LK.on('gameOver', function () {
	var playAgainButton = LK.getAsset('playAgainButton', {});
	tween(playAgainButton, {
		scaleX: 1.5,
		scaleY: 1.5
	}, {
		duration: 500,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			tween(playAgainButton, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 500,
				easing: tween.easeInOut
			});
		}
	});
});
var jumpPower = 500;
var holdTime = 0;
var maxHoldTime = 2; // Maximum hold time in seconds
var maxJumpHeight = 1500; // Maximum jump height in pixels
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 0;
background.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 / 2;
var enemies = [];
var enemySpawnInterval = 100;
var enemySpawnCounter = 0;
// Create a new Text2 object to display the score
var scoreText = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
// Add the score text to the game GUI at the top center of the screen
LK.gui.top.addChild(scoreText);
scoreText.x = 2048 / 2;
scoreText.y = 50;
// Create a new Text2 object to display the current score
var currentScoreText = new Text2('Current Score: 0', {
	size: 50,
	fill: 0xFFFFFF
});
// Add the current score text to the game GUI at the top center of the screen
LK.gui.top.addChild(currentScoreText);
currentScoreText.x = 2048 / 2;
currentScoreText.y = 100;
// Create a new Container object to display the hold time as a bar
var holdTimeBar = new Container({
	width: 0,
	height: 50,
	color: 0xFFFFFF,
	shape: 'box'
});
// Add the hold time bar to the game GUI at the bottom of the screen
LK.gui.bottom.addChild(holdTimeBar);
holdTimeBar.x = 0;
holdTimeBar.y = 0;
// Play background music only once when the game starts
if (!game.musicPlayed) {
	LK.playMusic('music');
	game.musicPlayed = true;
}
// Handle game updates
// Handle touch down to start increasing jump power
game.down = function (x, y, obj) {
	holdTime = 0; // Reset hold time
};
// Handle touch up to execute jump based on accumulated power
game.up = function (x, y, obj) {
	if (!player.isJumping) {
		jumpPower = Math.min(holdTime / maxHoldTime, 1) * maxJumpHeight;
		player.y -= jumpPower; // Make the player jump
		player.isJumping = true; // Player is jumping
		holdTime = 0; // Reset hold time after jump
	}
};
game.update = function () {
	player.update();
	if (enemies.length <= 2) {
		enemySpawnCounter++;
		if (enemySpawnCounter >= enemySpawnInterval) {
			var enemy = new Enemy();
			enemy.x = 2048;
			enemy.y = 2732 / 2;
			enemies.push(enemy);
			game.addChild(enemy);
			// Randomize the spawn interval for the next enemy
			enemySpawnInterval = Math.floor(Math.random() * 150) + 50;
			enemySpawnCounter = 0;
		}
	}
	// Update hold time while the screen is being held down
	if (holdTime < maxHoldTime) {
		holdTime += 1 / 60; // Increment hold time by 1/60th of a second per frame
		holdTimeBar.width = holdTime / maxHoldTime * 2048; // Update the width of the hold time bar based on the current hold time
	}
	for (var j = enemies.length - 1; j >= 0; j--) {
		enemies[j].update();
		if (player.intersects(enemies[j])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		} else if (player.x > enemies[j].x && !enemies[j].passed && player.isInAir) {
			enemies[j].passed = true;
			LK.setScore(LK.getScore() + 1);
			scoreText.setText(LK.getScore());
			// Update the current score text
			currentScoreText.setText('Current Score: ' + LK.getScore());
			// Play sound effect when score increases
			LK.getSound('sounds').play();
			// Create and display a 'Perfect' image object
			var perfectImage = LK.getAsset('Perfect', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			LK.gui.center.addChild(perfectImage);
			perfectImage.x = 2048 / 2;
			perfectImage.y = 2732 / 2; // Center of the screen
			// Tween to fade out and remove the perfect image after 0.5 seconds
			tween(perfectImage, {
				alpha: 0
			}, {
				duration: 500,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					perfectImage.destroy();
				}
			});
		} else if (enemies[j].x < 0) {
			enemies[j].destroy();
			enemies.splice(j, 1);
			if (enemies.length == 0) {
				var enemy = new Enemy();
				enemy.x = 2048;
				enemy.y = 2732 / 2;
				enemies.push(enemy);
				game.addChild(enemy);
			}
		}
	}
};
// Handle player jump