/**** 
* Classes
****/ 
// Fish class
var Fish = Container.expand(function () {
	var self = Container.call(this);
	var fishGraphics = self.attachAsset('pelican', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.direction = 1; // 1 for right, -1 for left
	self.update = function () {
		self.x += self.speed * self.direction;
		if (self.x > 2048 || self.x < 0) {
			self.direction *= -1; // Change direction
			fishGraphics.scale.x *= -1; // Flip the direction of the image
		}
	};
});
// The assets will be automatically created and loaded by the LK engine
// Jet class
var Jet = Container.expand(function () {
	var self = Container.call(this);
	var jetGraphics = self.attachAsset('jet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 15;
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -100) {
			self.destroy();
		}
	};
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -5;
	self.update = function () {
		self.x += self.speed;
		self.children.forEach(function (child) {
			if (child instanceof Text2) {
				child.x = self.x;
			}
		});
		if (self.x < -100) {
			self.destroy();
		}
	};
	self.createPipe = function (gapY, gapHeight) {
		var topPipe = LK.getAsset('obstacle', {
			anchorX: 0.5,
			anchorY: 1.0,
			height: gapY
		});
		var bottomPipe = LK.getAsset('obstacle', {
			anchorX: 0.5,
			anchorY: 0.0,
			y: gapY + gapHeight,
			height: 2732 - (gapY + gapHeight)
		});
		self.addChild(topPipe);
		self.addChild(bottomPipe);
	};
});
// Pelican class
var Pelican = Container.expand(function () {
	var self = Container.call(this);
	var pelicanGraphics = self.attachAsset('pelicanSVG', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.update = function () {
		self.speed += 0.5; // Gravity effect
		self.y += self.speed;
		if (self.y < 0) {
			self.y = 0;
		}
		if (self.y > 2732) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	};
	self.dive = function () {
		self.speed = 10; // Increase speed for diving
	};
	self.fly = function () {
		self.speed = -15; // Increase upward speed for flying
	};
});

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

/**** 
* Game Code
****/ 
game.pipesPassed = 0;
game.jetsAppear = false;
// Forest green color
// No start screen, game begins immediately
// Forest green color for pipes
// Forest green color for pipes
// Add a light blue layer at the bottom 20% of the screen
var bottomLayer = LK.getAsset('ocean', {
	width: 2048,
	height: 2732 * 0.2,
	color: 0xADD8E6,
	// Light blue color
	// Bright pink color
	anchorX: 0.5,
	anchorY: 0.0
});
bottomLayer.x = 2048 / 2;
bottomLayer.y = 2732 * 0.8;
game.addChild(bottomLayer);
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var pelican = game.addChild(new Pelican());
var fish = game.addChild(new Fish());
fish.x = 1024; // Start in the middle of the screen
fish.y = 2732 * 0.9; // Position in the bottom layer
pelican.speed = 0; // Initial speed
pelican.x = 500;
pelican.y = 1366;
var obstacles = [];
game.update = function () {
	if (LK.ticks % 400 == 0 && !game.jetsAppear) {
		var newObstacle = new Obstacle();
		newObstacle.x = 2048;
		var gapY = Math.random() * (2000 - 600); // Random gap position
		var pelicanHeight = LK.getAsset('pelican', {}).height;
		var maxGapHeight = pelicanHeight * 10;
		var initialGapHeight = 2000 * 0.2;
		var minGapHeight = initialGapHeight / 2;
		var gapHeight = Math.max(minGapHeight, Math.min(initialGapHeight, maxGapHeight) - LK.getScore() * 0.1); // Decrease gapHeight over time but not less than half its initial size
		newObstacle.createPipe(gapY, gapHeight);
		obstacles.push(newObstacle);
		game.addChild(newObstacle);
		game.pipesPassed++;
		if (game.pipesPassed % 8 == 0) {
			game.jetsAppear = true;
			game.jetsTimer = 0;
		}
	}
	for (var i = obstacles.length - 1; i >= 0; i--) {
		if (obstacles[i].x < -50) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
			LK.setScore(LK.getScore() + 1); // Add 1 point to the score
			scoreTxt.setText(LK.getScore()); // Update the score text
		}
		if (pelican.intersects(obstacles[i])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.stopMusic();
			LK.showGameOver();
		}
		fish.update();
		if (pelican.intersects(fish)) {
			fish.destroy();
			fish = game.addChild(new Fish());
			fish.x = 1024; // Reset fish position
			fish.y = 2732 * 0.9;
			LK.setScore(LK.getScore() + 10); // Add 10 points to the score
			scoreTxt.setText(LK.getScore()); // Update the score text
			// Create and display the "YUM" text
			var yumText = new Text2('YUM', {
				size: 150,
				fill: "#ffffff"
			});
			yumText.anchor.set(0.5, 0);
			yumText.x = pelican.x;
			yumText.y = pelican.y;
			yumText.alpha = 1;
			yumText.update = function () {
				this.y -= 2; // Move the text upwards
				this.alpha -= 0.02; // Fade out the text
				if (this.alpha <= 0) {
					this.destroy();
				}
			};
			game.addChild(yumText);
		}
		// Add the jet to the game
		if (game.jetsAppear) {
			game.jetsTimer++;
			if (game.jetsTimer >= 300) {
				// 5 seconds have passed
				game.jetsAppear = false;
			} else if (LK.ticks % 60 == 0) {
				// Every second
				if (game.jetsTimer == 0) {
					// When the first jet appears
					var crowsText = new Text2('CROWS!', {
						size: 200,
						fill: "#ffffff"
					});
					crowsText.anchor.set(0.5, 0.5);
					crowsText.x = 2048 / 2;
					crowsText.y = 2732 / 2;
					game.addChild(crowsText);
					// Remove the "CROWS!" text after 2 seconds
					LK.setTimeout(function () {
						crowsText.destroy();
					}, 2000);
				}
				for (var i = 0; i < 3; i++) {
					var newJet = new Jet();
					newJet.x = 2048 + i * 500; // Start from the right side of the screen and spread out the jets
					newJet.y = Math.random() * 2732; // Random y position
					game.addChild(newJet);
				}
			}
		}
		// Check for collision with the jet
		for (var i = game.children.length - 1; i >= 0; i--) {
			if (game.children[i] instanceof Jet && pelican.intersects(game.children[i])) {
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
			}
		}
		// Increment score for every two seconds the pelican stays alive
		if (LK.ticks % 120 == 0) {
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore());
		}
	}
};
game.down = function (x, y, obj) {
	pelican.fly();
};
game.up = function (x, y, obj) {
	// No action needed on mouse up
};
// Start the music when the game begins
LK.playMusic('soundtrack', {
	volume: 0.3
});