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

/**** 
* Classes
****/ 
var Bird = Container.expand(function () {
	var self = Container.call(this);
	var birdGraphics = self.attachAsset('bird', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocity = 0;
	self.gravity = 0.8;
	self.flapPower = -12;
	self.flap = function () {
		self.velocity = self.flapPower;
		LK.getSound('flap').play();
		// Add a little bounce animation
		tween(birdGraphics, {
			rotation: -0.3
		}, {
			duration: 100
		});
		tween(birdGraphics, {
			rotation: 0
		}, {
			duration: 200
		});
	};
	self.update = function () {
		self.velocity += self.gravity;
		self.y += self.velocity;
		// Rotate bird based on velocity
		birdGraphics.rotation = Math.max(-0.5, Math.min(0.5, self.velocity * 0.05));
		// Check ground collision
		if (self.y > 2732 - 150 && !invulnerable) {
			lives--;
			livesText.setText('Lives: ' + lives);
			if (lives <= 0) {
				skullText.alpha = 1; // Show skull emoji
				tween(skullText, {
					scaleX: 1.5,
					scaleY: 1.5
				}, {
					duration: 500
				});
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 1000);
			} else {
				// Reset bird position and velocity
				self.y = 1366;
				self.velocity = 0;
				// Start invulnerability period
				invulnerable = true;
				invulnerabilityTimer = 0;
				// Visual feedback for invulnerability
				tween(birdGraphics, {
					alpha: 0.5
				}, {
					duration: 100
				});
				LK.effects.flashScreen(0xffffff, 250);
			}
		}
		// Check ceiling collision
		if (self.y < 0) {
			self.y = 0;
			self.velocity = 0;
		}
	};
	return self;
});
var Pipe = Container.expand(function () {
	var self = Container.call(this);
	self.speed = -4;
	self.scored = false;
	// Create top pipe
	self.topPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 1
	});
	// Create bottom pipe
	self.bottomPipe = self.attachAsset('pipe', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.setGapPosition = function (gapY, gapSize) {
		self.topPipe.y = gapY - gapSize / 2;
		self.bottomPipe.y = gapY + gapSize / 2;
	};
	self.update = function () {
		self.x += self.speed;
		// Remove pipe when off screen
		if (self.x < -100) {
			self.shouldRemove = true;
		}
		// Check scoring
		if (!self.scored && self.x < bird.x) {
			self.scored = true;
			LK.setScore(LK.getScore() + 1);
			scoreText.setText(LK.getScore());
			LK.getSound('score').play();
		}
	};
	self.checkCollision = function (bird) {
		var birdBounds = {
			x: bird.x - 30,
			y: bird.y - 30,
			width: 60,
			height: 60
		};
		var topPipeBounds = {
			x: self.x - 60,
			y: self.topPipe.y - 800,
			width: 120,
			height: 800
		};
		var bottomPipeBounds = {
			x: self.x - 60,
			y: self.bottomPipe.y,
			width: 120,
			height: 800
		};
		return birdBounds.x < topPipeBounds.x + topPipeBounds.width && birdBounds.x + birdBounds.width > topPipeBounds.x && birdBounds.y < topPipeBounds.y + topPipeBounds.height && birdBounds.y + birdBounds.height > topPipeBounds.y || birdBounds.x < bottomPipeBounds.x + bottomPipeBounds.width && birdBounds.x + birdBounds.width > bottomPipeBounds.x && birdBounds.y < bottomPipeBounds.y + bottomPipeBounds.height && birdBounds.y + birdBounds.height > bottomPipeBounds.y;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var bird;
var pipes = [];
var ground;
var scoreText;
var livesText;
var lives = 10;
var pipeSpawnTimer = 0;
var pipeSpawnInterval = 90; // Spawn pipe every 1.5 seconds at 60fps
var gapSize = 300;
var invulnerable = false;
var invulnerabilityTimer = 0;
var invulnerabilityDuration = 60; // 1 second at 60fps
var skullText;
// Create ground
ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 2732 - 100
}));
// Create bird
bird = game.addChild(new Bird());
bird.x = 300;
bird.y = 1366; // Middle of screen
// Create score display
scoreText = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
scoreText.y = 100;
// Create star icon next to score
var starIcon = LK.getAsset('star', {
	anchorX: 0.5,
	anchorY: 0.5
});
LK.gui.top.addChild(starIcon);
starIcon.x = scoreText.x - 80;
starIcon.y = scoreText.y + 60;
// Create lives display
livesText = new Text2('Lives: 10', {
	size: 80,
	fill: 0xFFFFFF
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
livesText.x = -120;
livesText.y = 50;
// Create skull emoji (initially hidden)
skullText = new Text2('💀', {
	size: 150,
	fill: 0xFF0000
});
skullText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(skullText);
skullText.alpha = 0; // Initially hidden
// Input handling
game.down = function (x, y, obj) {
	bird.flap();
};
// Spawn pipes
function spawnPipe() {
	var pipe = game.addChild(new Pipe());
	pipe.x = 2148; // Start off screen to the right
	// Random gap position
	var minGapY = gapSize / 2 + 100;
	var maxGapY = 2732 - 100 - gapSize / 2;
	var gapY = minGapY + Math.random() * (maxGapY - minGapY);
	pipe.setGapPosition(gapY, gapSize);
	pipes.push(pipe);
}
// Main game loop
game.update = function () {
	// Spawn pipes
	pipeSpawnTimer++;
	if (pipeSpawnTimer >= pipeSpawnInterval) {
		spawnPipe();
		pipeSpawnTimer = 0;
	}
	// Update pipes
	for (var i = pipes.length - 1; i >= 0; i--) {
		var pipe = pipes[i];
		// Check collision
		if (pipe.checkCollision(bird) && !invulnerable) {
			lives--;
			livesText.setText('Lives: ' + lives);
			if (lives <= 0) {
				skullText.alpha = 1; // Show skull emoji
				tween(skullText, {
					scaleX: 1.5,
					scaleY: 1.5
				}, {
					duration: 500
				});
				LK.effects.flashScreen(0xff0000, 500);
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 1000);
				return;
			} else {
				// Reset bird position and velocity
				bird.y = 1366;
				bird.velocity = 0;
				// Start invulnerability period
				invulnerable = true;
				invulnerabilityTimer = 0;
				// Visual feedback for invulnerability
				tween(bird.children[0], {
					alpha: 0.5
				}, {
					duration: 100
				});
				LK.effects.flashScreen(0xff0000, 500);
			}
		}
		// Remove pipes that are off screen
		if (pipe.shouldRemove) {
			pipe.destroy();
			pipes.splice(i, 1);
		}
	}
	// Handle invulnerability timer
	if (invulnerable) {
		invulnerabilityTimer++;
		// Flash effect during invulnerability
		if (invulnerabilityTimer % 10 < 5) {
			bird.children[0].alpha = 0.3;
		} else {
			bird.children[0].alpha = 0.7;
		}
		// End invulnerability after duration
		if (invulnerabilityTimer >= invulnerabilityDuration) {
			invulnerable = false;
			invulnerabilityTimer = 0;
			tween(bird.children[0], {
				alpha: 1
			}, {
				duration: 200
			});
		}
	}
};