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

/**** 
* Classes
****/ 
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var topPipe = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 1
	});
	var bottomPipe = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.speed = gameSpeed;
	self.gap = 300;
	self.passed = false;
	self.setGap = function (centerY) {
		topPipe.y = centerY - self.gap / 2;
		bottomPipe.y = centerY + self.gap / 2;
	};
	self.update = function () {
		self.x -= self.speed;
		// Check if parrot passed this obstacle
		if (!self.passed && self.x < parrot.x - 50) {
			self.passed = true;
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore());
		}
	};
	return self;
});
var Parrot = Container.expand(function () {
	var self = Container.call(this);
	var parrotGraphics = self.attachAsset('parrot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocity = 0;
	self.gravity = 0.5;
	self.flapPower = -12;
	self.maxFallSpeed = 15;
	self.flap = function () {
		self.velocity = self.flapPower;
		LK.getSound('flap').play();
		// Wing flap animation
		tween(parrotGraphics, {
			scaleY: 0.8
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(parrotGraphics, {
					scaleY: 1
				}, {
					duration: 100
				});
			}
		});
	};
	self.update = function () {
		// Apply gravity
		self.velocity += self.gravity;
		// Limit fall speed
		if (self.velocity > self.maxFallSpeed) {
			self.velocity = self.maxFallSpeed;
		}
		// Update position
		self.y += self.velocity;
		// Keep parrot on screen
		if (self.y < 50) {
			self.y = 50;
			self.velocity = 0;
		}
		if (self.y > 2732 - 50) {
			self.y = 2732 - 50;
			self.velocity = 0;
		}
		// Subtle rotation based on velocity
		parrotGraphics.rotation = Math.max(-0.5, Math.min(0.5, self.velocity * 0.1));
	};
	return self;
});
var Seed = Container.expand(function () {
	var self = Container.call(this);
	var seedGraphics = self.attachAsset('seed', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = gameSpeed;
	self.collected = false;
	self.rotationSpeed = 0.1;
	self.update = function () {
		self.x -= self.speed;
		seedGraphics.rotation += self.rotationSpeed;
		// Gentle floating animation
		seedGraphics.y = Math.sin(LK.ticks * 0.05 + self.x * 0.01) * 10;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var gameSpeed = 4;
var speedIncrement = 0.002;
var maxSpeed = 8;
var parrot = game.addChild(new Parrot());
parrot.x = 300;
parrot.y = 2732 / 2;
var obstacles = [];
var seeds = [];
var obstacleSpawnTimer = 0;
var seedSpawnTimer = 0;
// Score display
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 100;
// Distance display
var distanceTxt = new Text2('Distance: 0m', {
	size: 50,
	fill: 0xFFFFFF
});
distanceTxt.anchor.set(0, 0);
LK.gui.topLeft.addChild(distanceTxt);
distanceTxt.x = 120;
distanceTxt.y = 50;
var distance = 0;
var isGameActive = true;
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = 2048 + 100;
	// Random gap position
	var minY = 400;
	var maxY = 2732 - 400;
	var gapCenterY = minY + Math.random() * (maxY - minY);
	obstacle.setGap(gapCenterY);
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnSeed() {
	var seed = new Seed();
	seed.x = 2048 + 50;
	seed.y = 200 + Math.random() * (2732 - 400);
	seeds.push(seed);
	game.addChild(seed);
}
function checkCollisions() {
	// Check obstacle collisions
	for (var i = 0; i < obstacles.length; i++) {
		var obstacle = obstacles[i];
		if (parrot.intersects(obstacle)) {
			gameOver();
			return;
		}
	}
	// Check seed collection
	for (var j = seeds.length - 1; j >= 0; j--) {
		var seed = seeds[j];
		if (!seed.collected && parrot.intersects(seed)) {
			seed.collected = true;
			LK.setScore(LK.getScore() + 5);
			scoreTxt.setText(LK.getScore());
			LK.getSound('collect').play();
			// Collection effect
			tween(seed, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2
			}, {
				duration: 300,
				onFinish: function onFinish() {
					seed.destroy();
					seeds.splice(j, 1);
				}
			});
		}
	}
}
function gameOver() {
	if (!isGameActive) return;
	isGameActive = false;
	LK.getSound('hit').play();
	LK.effects.flashScreen(0xff0000, 1000);
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 500);
}
function cleanupOffscreenObjects() {
	// Clean up obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		if (obstacles[i].x < -200) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
		}
	}
	// Clean up seeds
	for (var j = seeds.length - 1; j >= 0; j--) {
		if (seeds[j].x < -100 && !seeds[j].collected) {
			seeds[j].destroy();
			seeds.splice(j, 1);
		}
	}
}
game.down = function (x, y, obj) {
	if (isGameActive) {
		parrot.flap();
	}
};
game.update = function () {
	if (!isGameActive) return;
	// Increase game speed gradually
	if (gameSpeed < maxSpeed) {
		gameSpeed += speedIncrement;
	}
	// Update distance
	distance += gameSpeed * 0.1;
	distanceTxt.setText('Distance: ' + Math.floor(distance) + 'm');
	// Spawn obstacles
	obstacleSpawnTimer++;
	if (obstacleSpawnTimer >= 120) {
		// Every 2 seconds at 60 FPS
		spawnObstacle();
		obstacleSpawnTimer = 0;
	}
	// Spawn seeds less frequently
	seedSpawnTimer++;
	if (seedSpawnTimer >= 180 && Math.random() < 0.7) {
		// Every 3 seconds, 70% chance
		spawnSeed();
		seedSpawnTimer = 0;
	}
	// Update all obstacles
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].speed = gameSpeed;
	}
	// Update all seeds
	for (var j = 0; j < seeds.length; j++) {
		seeds[j].speed = gameSpeed;
	}
	checkCollisions();
	cleanupOffscreenObjects();
};