/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0
});

/**** 
* Classes
****/ 
var Cloud = Container.expand(function () {
	var self = Container.call(this);
	// Properties
	self.speed = 1;
	// Create cloud graphics
	var cloudGraphics = self.attachAsset('cloud', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.8
	});
	// Update method
	self.update = function () {
		self.x -= self.speed;
	};
	return self;
});
var Dino = Container.expand(function () {
	var self = Container.call(this);
	// Properties
	self.isJumping = false;
	self.isDucking = false;
	self.jumpVelocity = 0;
	self.gravity = 0.8;
	self.groundY = 0; // Will be set when positioning
	self.walkFrame = 0; // Current animation frame
	self.walkFrameCount = 2; // Total number of walking frames
	self.frameChangeInterval = 10; // Ticks between frame changes
	self.frameCounter = 0; // Counter for animation timing
	// Legs animation
	self.leftLeg = null;
	self.rightLeg = null;
	// Create dino graphics
	var dinoGraphics = self.attachAsset('dino', {
		anchorX: 0.5,
		anchorY: 1.0,
		interactive: true
	});
	// Create legs
	self.leftLeg = LK.getAsset('ground', {
		width: 20,
		height: 40,
		anchorX: 0.5,
		anchorY: 0,
		color: 0x333333
	});
	self.rightLeg = LK.getAsset('ground', {
		width: 20,
		height: 40,
		anchorX: 0.5,
		anchorY: 0,
		color: 0x333333
	});
	self.addChild(self.leftLeg);
	self.addChild(self.rightLeg);
	// Position legs
	self.leftLeg.x = -20;
	self.leftLeg.y = -10;
	self.rightLeg.x = 20;
	self.rightLeg.y = -10;
	// Handle click/tap directly on the dinosaur
	self.down = function (x, y, obj) {
		self.jump();
	};
	// Jump method
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.jumpVelocity = -30; // Increased from -25 to -30 for even higher jumps
			LK.getSound('jump').play();
		}
	};
	// Duck method
	self.duck = function () {
		if (!self.isDucking && !self.isJumping) {
			self.isDucking = true;
			dinoGraphics.height = 50; // Half height when ducking
		}
	};
	// Stop ducking
	self.stopDucking = function () {
		if (self.isDucking) {
			self.isDucking = false;
			dinoGraphics.height = 100; // Normal height
		}
	};
	// Reset dino state
	self.reset = function () {
		self.isJumping = false;
		self.isDucking = false;
		self.jumpVelocity = 0;
		self.y = self.groundY;
		dinoGraphics.height = 100;
		self.walkFrame = 0;
		self.frameCounter = 0;
		dinoGraphics.scaleY = 1.0;
		dinoGraphics.y = 0;
		// Reset leg positions
		self.leftLeg.y = -10;
		self.leftLeg.height = 40;
		self.rightLeg.y = -10;
		self.rightLeg.height = 40;
	};
	// Update method
	self.update = function () {
		if (self.isJumping) {
			self.y += self.jumpVelocity;
			self.jumpVelocity += self.gravity;
			// Check if landed
			if (self.y >= self.groundY) {
				self.y = self.groundY;
				self.isJumping = false;
				self.jumpVelocity = 0;
			}
		} else if (!self.isDucking) {
			// Walking animation when not jumping or ducking
			self.frameCounter++;
			if (self.frameCounter >= self.frameChangeInterval) {
				self.frameCounter = 0;
				self.walkFrame = (self.walkFrame + 1) % self.walkFrameCount;
				// Animate the legs by slightly changing the height and moving legs
				if (self.walkFrame === 0) {
					dinoGraphics.scaleY = 1.0;
					dinoGraphics.y = 0;
					// Leg animation - one leg forward, one back
					self.leftLeg.y = -10;
					self.leftLeg.height = 40;
					self.rightLeg.y = 0;
					self.rightLeg.height = 30;
				} else {
					dinoGraphics.scaleY = 0.95;
					dinoGraphics.y = 5; // Slight y offset to make it look like the dino is taking a step
					// Leg animation - switch positions
					self.leftLeg.y = 0;
					self.leftLeg.height = 30;
					self.rightLeg.y = -10;
					self.rightLeg.height = 40;
				}
			}
		}
	};
	// Hit box for collision detection
	self.getHitBox = function () {
		return {
			x: self.x - dinoGraphics.width / 2,
			y: self.y - dinoGraphics.height,
			width: dinoGraphics.width,
			height: dinoGraphics.height
		};
	};
	return self;
});
var Obstacle = Container.expand(function (type) {
	var self = Container.call(this);
	// Properties
	self.type = type || 'cactus'; // 'cactus' or 'pterodactyl'
	self.speed = 8;
	// Create obstacle graphics
	var graphics;
	if (self.type === 'cactus') {
		graphics = self.attachAsset('cactus', {
			anchorX: 0.5,
			anchorY: 1.0
		});
	} else {
		graphics = self.attachAsset('pterodactyl', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
	// Update method
	self.update = function () {
		self.x -= self.speed;
	};
	// Increase speed method
	self.setSpeed = function (newSpeed) {
		self.speed = newSpeed;
	};
	// Hit box for collision detection
	self.getHitBox = function () {
		if (self.type === 'cactus') {
			return {
				x: self.x - graphics.width / 2,
				y: self.y - graphics.height,
				width: graphics.width,
				height: graphics.height
			};
		} else {
			return {
				x: self.x - graphics.width / 2,
				y: self.y - graphics.height / 2,
				width: graphics.width,
				height: graphics.height
			};
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xFFFFFF
});

/**** 
* Game Code
****/ 
// Game state
var gameRunning = false;
var gameSpeed = 8;
var score = 0;
var highScore = storage.highScore || 0;
var lastObstacleTime = 0;
var nightMode = false;
var nextSpeedIncrease = 500;
var nextCloudTime = 0;
// Game objects
var dino;
var ground;
var obstacles = [];
var clouds = [];
// UI elements
var scoreTxt;
var highScoreTxt;
var tapToStartTxt;
// Ground
ground = LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
});
ground.y = 2732 - 200; // Position ground near the bottom
game.addChild(ground);
// Score text
scoreTxt = new Text2('0', {
	size: 60,
	fill: 0x000000
});
scoreTxt.anchor.set(1.0, 0);
scoreTxt.x = 2048 - 30;
scoreTxt.y = 30;
game.addChild(scoreTxt);
// High score text
highScoreTxt = new Text2('HI: ' + highScore, {
	size: 60,
	fill: 0x888888
});
highScoreTxt.anchor.set(1.0, 0);
highScoreTxt.x = 2048 - 30;
highScoreTxt.y = 100;
game.addChild(highScoreTxt);
// Tap to start text
tapToStartTxt = new Text2('TAP TO START', {
	size: 80,
	fill: 0x000000
});
tapToStartTxt.anchor.set(0.5, 0.5);
tapToStartTxt.x = 2048 / 2;
tapToStartTxt.y = 2732 / 2;
game.addChild(tapToStartTxt);
// Initialize dino
dino = new Dino();
dino.x = 300;
dino.groundY = ground.y;
dino.y = dino.groundY;
game.addChild(dino);
// Start the game
function startGame() {
	if (!gameRunning) {
		gameRunning = true;
		gameSpeed = 8;
		score = 0;
		nextSpeedIncrease = 500;
		// Reset dino
		dino.reset();
		// Clear obstacles
		for (var i = obstacles.length - 1; i >= 0; i--) {
			obstacles[i].destroy();
		}
		obstacles = [];
		// Clear clouds
		for (var i = clouds.length - 1; i >= 0; i--) {
			clouds[i].destroy();
		}
		clouds = [];
		// Update UI
		tapToStartTxt.visible = false;
		scoreTxt.setText('0');
		// Set background to day mode
		game.setBackgroundColor(0xFFFFFF);
		nightMode = false;
	}
}
// Collision detection
function checkCollision(dinoHitBox, obstacleHitBox) {
	return !(dinoHitBox.x + dinoHitBox.width < obstacleHitBox.x || dinoHitBox.x > obstacleHitBox.x + obstacleHitBox.width || dinoHitBox.y + dinoHitBox.height < obstacleHitBox.y || dinoHitBox.y > obstacleHitBox.y + obstacleHitBox.height);
}
// Spawn a new obstacle
function spawnObstacle() {
	var type = Math.random() > 0.3 ? 'cactus' : 'pterodactyl';
	var obstacle = new Obstacle(type);
	// Position it
	obstacle.x = 2048 + 100;
	if (type === 'cactus') {
		obstacle.y = ground.y;
	} else {
		// Pterodactyls can be at different heights
		var height = Math.random() > 0.5 ? 200 : 300;
		obstacle.y = ground.y - height;
	}
	obstacle.setSpeed(gameSpeed);
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
// Spawn a new cloud
function spawnCloud() {
	var cloud = new Cloud();
	cloud.x = 2048 + 100;
	cloud.y = ground.y - 300 - Math.random() * 200;
	clouds.push(cloud);
	game.addChild(cloud);
}
// Game over
function gameOver() {
	gameRunning = false;
	LK.getSound('collision').play();
	// Update high score
	if (score > highScore) {
		highScore = score;
		storage.highScore = highScore;
		highScoreTxt.setText('HI: ' + highScore);
	}
	tapToStartTxt.setText('GAME OVER - TAP TO RESTART');
	tapToStartTxt.visible = true;
	// Show game over screen
	LK.showGameOver();
}
// Game input handlers
game.down = function (x, y, obj) {
	if (!gameRunning) {
		startGame();
	} else {
		// Jump when clicking anywhere on screen
		dino.jump();
	}
};
game.up = function (x, y, obj) {
	// Stop ducking when released
	if (gameRunning) {
		dino.stopDucking();
	}
};
// Game update loop
game.update = function () {
	if (!gameRunning) {
		return;
	}
	// Update score
	score++;
	if (score % 10 === 0) {
		scoreTxt.setText(Math.floor(score / 10));
	}
	// Day/night transition every 1000 points
	if (score % 1000 === 0 && score > 0) {
		nightMode = !nightMode;
		game.setBackgroundColor(nightMode ? 0x333333 : 0xFFFFFF);
		scoreTxt.setFill(nightMode ? "#FFFFFF" : "#000000");
		// Play milestone sound
		LK.getSound('milestone').play();
	}
	// Increase speed every 500 points
	if (score >= nextSpeedIncrease) {
		gameSpeed += 0.5;
		nextSpeedIncrease += 500;
		// Update speed of existing obstacles
		for (var i = 0; i < obstacles.length; i++) {
			obstacles[i].setSpeed(gameSpeed);
		}
	}
	// Spawn obstacles
	if (LK.ticks - lastObstacleTime > 60 + Math.random() * 60) {
		spawnObstacle();
		lastObstacleTime = LK.ticks;
	}
	// Spawn clouds
	if (LK.ticks - nextCloudTime > 180) {
		spawnCloud();
		nextCloudTime = LK.ticks + Math.random() * 180;
	}
	// Update dino
	dino.update();
	// Collision detection and update for obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		obstacles[i].update();
		// Check collision with dino
		var dinoHitBox = dino.getHitBox();
		var obstacleHitBox = obstacles[i].getHitBox();
		if (checkCollision(dinoHitBox, obstacleHitBox)) {
			gameOver();
			return;
		}
		// Remove obstacles that are off-screen
		if (obstacles[i].x < -100) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
		}
	}
	// Update clouds
	for (var i = clouds.length - 1; i >= 0; i--) {
		clouds[i].update();
		// Remove clouds that are off-screen
		if (clouds[i].x < -150) {
			clouds[i].destroy();
			clouds.splice(i, 1);
		}
	}
};
// Play background music
LK.playMusic('bgMusic', {
	volume: 0.3
});