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

/**** 
* Classes
****/ 
var Bird = Container.expand(function () {
	var self = Container.call(this);
	// Bird graphics
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add slow flapping animation
	tween(birdGraphics, {
		y: 10
	}, {
		duration: 1000,
		easing: tween.easeInOutQuad,
		loop: true,
		yoyo: true
	});
	// Bird physics properties
	self.velocity = 0;
	self.gravity = 0.6; // Decreased gravity for less realistic falling
	self.terminalVelocity = 12; // Decreased maximum falling speed
	self.flapStrength = -11; // Decreased from -14 to make bird jump less dramatic
	self.isDead = false;
	// Flap the bird
	self.flap = function () {
		if (!self.isDead) {
			self.velocity = self.flapStrength;
			// Add a small immediate position change for less natural, more game-like movement
			tween(self, {
				y: self.y - 20
			}, {
				duration: 50,
				easing: tween.easeOutQuad
			});
			LK.getSound('flap').play();
			// Rotate bird up when flapping with more immediate rotation
			tween(self, {
				rotation: -0.4
			}, {
				duration: 150,
				easing: tween.easeOutCubic // Faster rotation
			});
		}
	};
	self.die = function () {
		self.isDead = true;
		LK.getSound('hit').play();
		LK.effects.flashObject(self, 0xFF0000, 500);
		LK.effects.flashScreen(0xFF0000, 800); // Flash entire screen red
		// Create text to inform player about the cycle
		var cycleText = new Text2('REPEAT THE CYCLE', {
			size: 120,
			fill: 0xFF0000
		});
		cycleText.anchor.set(0.5, 0.5);
		cycleText.x = 2048 / 2;
		cycleText.y = 2732 / 2 - 300;
		game.addChild(cycleText);
	};
	self.update = function () {
		if (self.isDead) {
			return;
		}
		// Apply gravity with acceleration curve
		self.velocity += self.gravity;
		// Apply terminal velocity - prevents bird from falling too fast
		if (self.velocity > self.terminalVelocity) {
			self.velocity = self.terminalVelocity;
		} else if (self.velocity > 8) {
			// When bird reaches certain speed, start to slow it down
			self.velocity -= 0.1; // Gradually reduce velocity
		}
		self.y += self.velocity;
		// Simpler rotation based on velocity with less dampening for arcade-style movement
		var targetRotation = Math.min(0.8, Math.max(-0.4, self.velocity * 0.04));
		tween(self, {
			rotation: targetRotation
		}, {
			duration: 100,
			// Faster rotation transition
			easing: tween.easeOutQuad
		});
		// Check boundaries
		if (self.y < 0) {
			self.y = 0;
			self.velocity = 0;
		}
		if (self.y > 2732) {
			self.die();
			// Add delay before game over to show the message
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 1500);
		}
	};
	return self;
});
var Pipe = Container.expand(function () {
	var self = Container.call(this);
	// Pipe properties
	self.speed = baseSpeed;
	self.scored = false;
	// Create top pipe (now much taller to extend to top of screen)
	var topPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 1.0,
		height: 2000 // Much taller to ensure it reaches top of screen
	});
	// Create top pipe cap
	var topPipeCap = self.attachAsset('pipeTop', {
		anchorX: 0.5,
		anchorY: 1.0,
		y: -500
	});
	// Create bottom pipe (now much taller to extend to bottom of screen)
	var bottomPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 0.0,
		height: 2000,
		// Much taller to ensure it reaches bottom of screen
		y: 200 // Gap will be between top and bottom pipes
	});
	// Create bottom pipe cap
	var bottomPipeCap = self.attachAsset('pipeTop', {
		anchorX: 0.5,
		anchorY: 0.0,
		y: 200
	});
	// Set pipe gap
	self.setGap = function (gapPosition, gapSize) {
		topPipe.y = gapPosition - gapSize / 2;
		topPipeCap.y = topPipe.y;
		bottomPipe.y = gapPosition + gapSize / 2;
		bottomPipeCap.y = bottomPipe.y;
	};
	self.update = function () {
		// Move pipe left
		self.x -= self.speed;
		// Check if pipe is offscreen (adjusted for wider pipes)
		if (self.x < -250) {
			self.destroy();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game state variables
var bird;
var pipes = [];
var isGameStarted = false;
var spawnInterval;
var score = 0;
var highScore = storage.highScore || 0;
var difficulty = 1;
var baseSpeed = 8; // Increased from 5 to make the game faster
var baseInterval = 2300; // Decreased from 2500 to create slightly closer pipes
var gameTimeElapsed = 0; // Track time elapsed in milliseconds
var timerInterval; // Interval for tracking game time
var deathTimeLimit = 320000; // 5 minutes and 20 seconds in milliseconds
// Background
var background = LK.getAsset('background', {
	anchorX: 0.5,
	anchorY: 0.5
});
background.x = 2048 / 2;
background.y = 2732 / 2;
background.scale.set(1.5); // Scale up background for zoomed effect
game.addChild(background);
// Score text
var scoreTxt = new Text2('0', {
	size: 150,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 50;
// High score text
var highScoreTxt = new Text2('Best: 0', {
	size: 80,
	fill: 0xFFFFFF
});
highScoreTxt.anchor.set(0.5, 0);
highScoreTxt.setText('Best: ' + highScore);
LK.gui.top.addChild(highScoreTxt);
highScoreTxt.y = 220;
// Timer text to show countdown
var timerTxt = new Text2('5:20', {
	size: 80,
	fill: 0xFFFFFF
});
// Ensure style object exists
timerTxt.style = timerTxt.style || {};
timerTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(timerTxt);
timerTxt.y = 310;
// Initialize bird
function initBird() {
	bird = new Bird();
	bird.x = 500; // Position bird more to the left for better zoomed view
	bird.y = 2732 / 2;
	// Scale bird up for zoomed in effect
	bird.scale.set(1.5);
	game.addChild(bird);
}
// Create a new pipe
function spawnPipe() {
	if (!isGameStarted) {
		return;
	}
	var pipe = new Pipe();
	// Position pipes further right for zoomed view
	pipe.x = 2048 + 150;
	// Set pipe speed based on current difficulty
	pipe.speed = baseSpeed * difficulty;
	// Move gap position higher (40% of screen height instead of 50%)
	var gapPosition = 2732 * 0.4 + (Math.random() * 200 - 100); // Higher placement ± 100px random variation
	// Fixed gap size that's comfortable to navigate through
	var gapSize = 550; // Slightly larger gap for zoomed view
	pipe.setGap(gapPosition, gapSize);
	// Scale pipes up for zoomed in effect
	pipe.scale.set(1.5);
	pipes.push(pipe);
	game.addChild(pipe);
}
// Start game
function startGame() {
	if (isGameStarted) {
		return;
	}
	isGameStarted = true;
	score = 0;
	difficulty = 1;
	gameTimeElapsed = 0; // Reset game time elapsed
	scoreTxt.setText(score);
	// Clear any existing pipes
	for (var i = pipes.length - 1; i >= 0; i--) {
		pipes[i].destroy();
	}
	pipes = [];
	// Reset bird position
	if (bird) {
		bird.destroy();
	}
	initBird();
	// Start spawning pipes with fixed interval
	spawnInterval = LK.setInterval(spawnPipe, baseInterval);
	// Start timer to track game time
	if (timerInterval) {
		LK.clearInterval(timerInterval);
	}
	timerInterval = LK.setInterval(function () {
		gameTimeElapsed += 100; // Increment by 100ms each tick
	}, 100);
	// Stop any existing music before playing new music
	LK.stopMusic();
	// Play background music only once
	LK.playMusic('bgMusic', {
		loop: false
	});
	// Listen for game pause/resume events to control audio
	LK.on('pause', function () {
		// Pause music when game is paused
		LK.stopMusic();
	});
	LK.on('resume', function () {
		// Resume music when game is resumed
		LK.playMusic('bgMusic');
	});
} //}1m}
// Initialize game
initBird();
highScoreTxt.setText('Best: ' + highScore);
// Game input
game.down = function (x, y, obj) {
	if (!isGameStarted) {
		startGame();
	}
	if (bird && !bird.isDead) {
		bird.flap();
	}
};
// Main game update
game.update = function () {
	if (!isGameStarted) {
		return;
	}
	// Update timer display
	if (gameTimeElapsed < deathTimeLimit) {
		var timeLeft = deathTimeLimit - gameTimeElapsed;
		var minutes = Math.floor(timeLeft / 60000);
		var seconds = Math.floor(timeLeft % 60000 / 1000);
		timerTxt.setText(minutes + ':' + (seconds < 10 ? '0' + seconds : seconds));
		// Change color when time is running out (last 30 seconds)
		if (timeLeft <= 30000) {
			timerTxt.style.fill = 0xFF0000;
			// Make text blink when time is really low (last 10 seconds)
			if (timeLeft <= 10000) {
				timerTxt.alpha = Math.sin(gameTimeElapsed / 200) * 0.5 + 0.5;
			}
		}
	}
	// Check if time limit has been reached (5 minutes and 5 seconds)
	if (gameTimeElapsed >= deathTimeLimit && bird && !bird.isDead) {
		// Brutally kill the bird after time limit
		LK.clearInterval(timerInterval); // Stop the timer
		timerTxt.setText('0:00');
		timerTxt.style.fill = 0xFF0000;
		timerTxt.alpha = 1;
		// Create brutal death effect
		LK.effects.flashScreen(0xFF0000, 800); // Flash screen red
		LK.getSound('hit').play(); // Play hit sound
		// Make bird explode with dramatic scale and color changes
		tween(bird, {
			rotation: Math.PI * 4,
			// Spin multiple times
			scaleX: 3,
			scaleY: 3,
			alpha: 0 // Fade out bird
		}, {
			duration: 1000,
			easing: tween.easeInBack,
			onFinish: function onFinish() {
				// Show game over after animation finishes
				LK.showGameOver();
			}
		});
		// Set bird as dead to prevent further updates
		bird.isDead = true;
		// Create text to inform player
		var deathText = new Text2('REPEAT THE CYCLE', {
			size: 120,
			fill: 0xFF0000
		});
		deathText.anchor.set(0.5, 0.5);
		deathText.x = 2048 / 2;
		deathText.y = 2732 / 2 - 300;
		game.addChild(deathText);
		return; // Skip the rest of the update
	}
	// Update all pipes
	for (var i = pipes.length - 1; i >= 0; i--) {
		var pipe = pipes[i];
		// Check for scoring (when bird passes pipe)
		if (!pipe.scored && bird && bird.x > pipe.x) {
			pipe.scored = true;
			score += 1;
			scoreTxt.setText(score);
			LK.setScore(score);
			LK.getSound('score').play();
			// Increase difficulty every 5 points
			if (score % 5 === 0) {
				difficulty += 0.2;
				// Update all existing pipes to the new speed
				for (var k = 0; k < pipes.length; k++) {
					pipes[k].speed = baseSpeed * difficulty;
				}
				// Clear and reset spawn interval with fixed timing
				LK.clearInterval(spawnInterval);
				spawnInterval = LK.setInterval(spawnPipe, baseInterval);
			}
			// Update high score if needed
			if (score > highScore) {
				highScore = score;
				storage.highScore = highScore;
				highScoreTxt.setText('Best: ' + highScore);
			}
		}
		// Check for collision with bird
		if (bird && !bird.isDead) {
			// Get pipe children for collision checks
			var pipeChildren = pipe.children;
			for (var j = 0; j < pipeChildren.length; j++) {
				if (bird.intersects(pipeChildren[j])) {
					bird.die();
					// Add delay before game over to show the message
					LK.setTimeout(function () {
						LK.showGameOver();
					}, 1500);
					break;
				}
			}
		}
		// Remove pipe if it's off screen
		if (pipe.x < -200) {
			pipe.destroy();
			pipes.splice(i, 1);
		}
	}
};