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

/**** 
* Classes
****/ 
// BirdFriend class
var BirdFriend = Container.expand(function () {
	var self = Container.call(this);
	// Attach asset (ellipse, color varies by number)
	var colors = [0xcccccc,
	// 0 (unused)
	0xffe066,
	// 1 - Geoffrey the Eagle (yellow)
	0x8ecae6,
	// 2 - Quinn the Chough (blue)
	0xff595e,
	// 3 - Nina the Robin (red)
	0x90be6d,
	// 4 - Astrid the Stork (green)
	0x6d597a,
	// 5 - Martin the Duck (purple)
	0xffca3a,
	// 6 - Ronald the Macaw (orange)
	0x43aa8b,
	// 7 - Graham the Seagull (teal)
	0x577590,
	// 8 - Jones the Hummingbird (navy)
	0xffffff // 9 - Swen the Swan (white)
	];
	self.number = 1; // Will be set after creation
	var birdSprite = self.attachAsset('birdfriend', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: colors[self.number],
		width: 120,
		height: 120,
		shape: 'ellipse'
	});
	// Add number label
	var numberText = new Text2('1', {
		size: 70,
		fill: 0x222222
	});
	numberText.anchor.set(0.5, 0.5);
	self.addChild(numberText);
	// Set number and color
	self.setNumber = function (n) {
		self.number = n;
		birdSprite.color = colors[n];
		numberText.setText('' + n);
	};
	// Animate collection
	self.collect = function (_onFinish) {
		tween(self, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 400,
			easing: tween.easeIn,
			onFinish: function onFinish() {
				if (_onFinish) _onFinish();
			}
		});
	};
	return self;
});
// Falcon (Player) class
var Falcon = Container.expand(function () {
	var self = Container.call(this);
	// Attach falcon asset (red box, will be replaced with image later)
	var falconSprite = self.attachAsset('falcon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Movement speed
	self.speed = 18;
	// Current velocity
	self.vx = 0;
	self.vy = 0;
	// Update method called every tick
	self.update = function () {
		self.x += self.vx;
		self.y += self.vy;
		// Clamp to game area
		if (self.x < 100 + falconSprite.width / 2) self.x = 100 + falconSprite.width / 2;
		if (self.x > 2048 - falconSprite.width / 2) self.x = 2048 - falconSprite.width / 2;
		if (self.y < falconSprite.height / 2) self.y = falconSprite.height / 2;
		if (self.y > 2732 - falconSprite.height / 2) self.y = 2732 - falconSprite.height / 2;
	};
	return self;
});
// Joystick class (on-screen)
var Joystick = Container.expand(function () {
	var self = Container.call(this);
	// Outer circle
	var base = self.attachAsset('joystickBase', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: 0xaaaaaa,
		width: 260,
		height: 260,
		shape: 'ellipse'
	});
	// Inner knob
	var knob = self.attachAsset('joystickKnob', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: 0x333333,
		width: 120,
		height: 120,
		shape: 'ellipse'
	});
	knob.x = 0;
	knob.y = 0;
	self.addChild(knob);
	// Joystick state
	self.active = false;
	self.startX = 0;
	self.startY = 0;
	self.deltaX = 0;
	self.deltaY = 0;
	// Get normalized direction (-1 to 1)
	self.getDirection = function () {
		var dx = self.deltaX / 100;
		var dy = self.deltaY / 100;
		// Clamp
		if (dx < -1) dx = -1;
		if (dx > 1) dx = 1;
		if (dy < -1) dy = -1;
		if (dy > 1) dy = 1;
		return {
			x: dx,
			y: dy
		};
	};
	// Reset knob
	self.reset = function () {
		self.deltaX = 0;
		self.deltaY = 0;
		knob.x = 0;
		knob.y = 0;
	};
	// Touch/mouse events
	self.down = function (x, y, obj) {
		self.active = true;
		self.startX = x;
		self.startY = y;
		self.deltaX = 0;
		self.deltaY = 0;
	};
	self.move = function (x, y, obj) {
		if (!self.active) return;
		self.deltaX = x - self.startX;
		self.deltaY = y - self.startY;
		// Clamp to radius 100
		var dist = Math.sqrt(self.deltaX * self.deltaX + self.deltaY * self.deltaY);
		if (dist > 100) {
			var scale = 100 / dist;
			self.deltaX *= scale;
			self.deltaY *= scale;
		}
		knob.x = self.deltaX;
		knob.y = self.deltaY;
	};
	self.up = function (x, y, obj) {
		self.active = false;
		self.reset();
	};
	return self;
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	// Attach asset (gray box)
	var obsSprite = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: 0x444444,
		width: 180,
		height: 60,
		shape: 'box'
	});
	// Movement speed
	self.speed = 10 + Math.random() * 8;
	// Direction: 1 = right, -1 = left
	self.dir = Math.random() < 0.5 ? 1 : -1;
	// Update method
	self.update = function () {
		self.x += self.speed * self.dir;
		// Bounce off edges
		if (self.x < 100 + obsSprite.width / 2) {
			self.x = 100 + obsSprite.width / 2;
			self.dir = 1;
		}
		if (self.x > 2048 - obsSprite.width / 2) {
			self.x = 2048 - obsSprite.width / 2;
			self.dir = -1;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x7ec8e3 // Light blue sky
});

/**** 
* Game Code
****/ 
// --- Game variables ---
var falcon;
var joystick;
var birdFriends = [];
var obstacles = [];
var nextBird = 1;
var scoreTxt;
var timerTxt;
var timeElapsed = 0;
var timerInterval;
var gameActive = true;
var lastFalconX = 0,
	lastFalconY = 0;
var lastIntersectingBird = false;
var lastIntersectingObstacle = false;
// --- Setup ---
// Set background color
game.setBackgroundColor(0x7ec8e3);
// Add Falcon (player)
falcon = new Falcon();
falcon.x = 2048 / 2;
falcon.y = 2732 - 400;
game.addChild(falcon);
// Add BirdFriends (1-9) at random positions, not overlapping
function randomBirdPos() {
	var margin = 200;
	var x = margin + Math.random() * (2048 - 2 * margin);
	var y = margin + Math.random() * (2732 - 2 * margin - 600);
	return {
		x: x,
		y: y
	};
}
for (var i = 1; i <= 9; i++) {
	var bird = new BirdFriend();
	bird.setNumber(i);
	var pos;
	var tries = 0;
	do {
		pos = randomBirdPos();
		var overlap = false;
		for (var j = 0; j < birdFriends.length; j++) {
			var dx = pos.x - birdFriends[j].x;
			var dy = pos.y - birdFriends[j].y;
			if (Math.sqrt(dx * dx + dy * dy) < 220) {
				overlap = true;
				break;
			}
		}
		tries++;
	} while (overlap && tries < 20);
	bird.x = pos.x;
	bird.y = pos.y + 200; // leave top margin for timer
	bird.scaleX = 1;
	bird.scaleY = 1;
	bird.alpha = 1;
	birdFriends.push(bird);
	game.addChild(bird);
}
// Add obstacles (4 obstacles)
for (var o = 0; o < 4; o++) {
	var obs = new Obstacle();
	obs.x = 300 + Math.random() * (2048 - 600);
	obs.y = 600 + Math.random() * (2732 - 1200);
	obstacles.push(obs);
	game.addChild(obs);
}
// Add joystick (bottom left, outside 100x100 menu area)
joystick = new Joystick();
joystick.x = 220;
joystick.y = 2732 - 220;
game.addChild(joystick);
// Add score text (top center)
scoreTxt = new Text2('Next: 1', {
	size: 120,
	fill: 0x222222
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Add timer text (top right)
timerTxt = new Text2('0.0s', {
	size: 90,
	fill: 0x222222
});
timerTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(timerTxt);
// --- Timer ---
function updateTimer() {
	if (!gameActive) return;
	timeElapsed += 0.1;
	timerTxt.setText(timeElapsed.toFixed(1) + 's');
}
timerInterval = LK.setInterval(updateTimer, 100);
// --- Joystick events ---
joystick.down = function (x, y, obj) {
	joystick.active = true;
	joystick.startX = x;
	joystick.startY = y;
	joystick.deltaX = 0;
	joystick.deltaY = 0;
};
joystick.move = function (x, y, obj) {
	if (!joystick.active) return;
	joystick.deltaX = x - joystick.startX;
	joystick.deltaY = y - joystick.startY;
	var dist = Math.sqrt(joystick.deltaX * joystick.deltaX + joystick.deltaY * joystick.deltaY);
	if (dist > 100) {
		var scale = 100 / dist;
		joystick.deltaX *= scale;
		joystick.deltaY *= scale;
	}
	joystick.children[1].x = joystick.deltaX;
	joystick.children[1].y = joystick.deltaY;
};
joystick.up = function (x, y, obj) {
	joystick.active = false;
	joystick.reset();
};
// --- Game move/up/down events (for joystick) ---
game.down = function (x, y, obj) {
	// If touch is inside joystick area, activate joystick
	var dx = x - joystick.x;
	var dy = y - joystick.y;
	if (dx * dx + dy * dy < 130 * 130) {
		joystick.down(x, y, obj);
	}
};
game.move = function (x, y, obj) {
	if (joystick.active) {
		joystick.move(x, y, obj);
	}
};
game.up = function (x, y, obj) {
	if (joystick.active) {
		joystick.up(x, y, obj);
	}
};
// --- Main game update ---
game.update = function () {
	if (!gameActive) return;
	// Joystick controls Falcon
	var dir = joystick.getDirection();
	falcon.vx = dir.x * falcon.speed;
	falcon.vy = dir.y * falcon.speed;
	// Update Falcon
	falcon.update();
	// Update obstacles
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].update();
	}
	// Check collision with next bird
	var nextBirdObj = null;
	for (var i = 0; i < birdFriends.length; i++) {
		if (birdFriends[i].number === nextBird) {
			nextBirdObj = birdFriends[i];
			break;
		}
	}
	if (nextBirdObj) {
		var intersecting = falcon.intersects(nextBirdObj);
		if (!lastIntersectingBird && intersecting) {
			// Collect bird
			nextBirdObj.collect(function () {
				nextBirdObj.destroy();
			});
			nextBird++;
			if (nextBird > 9) {
				// Win!
				gameActive = false;
				LK.clearInterval(timerInterval);
				LK.setScore(Math.max(0, Math.round(10000 - timeElapsed * 100)));
				LK.showYouWin();
				return;
			}
			scoreTxt.setText('Next: ' + nextBird);
		}
		lastIntersectingBird = intersecting;
	}
	// Check collision with obstacles
	var hitObstacle = false;
	for (var i = 0; i < obstacles.length; i++) {
		if (falcon.intersects(obstacles[i])) {
			hitObstacle = true;
			break;
		}
	}
	if (!lastIntersectingObstacle && hitObstacle) {
		// Game over
		gameActive = false;
		LK.clearInterval(timerInterval);
		LK.effects.flashScreen(0xff0000, 800);
		LK.showGameOver();
		return;
	}
	lastIntersectingObstacle = hitObstacle;
};
// --- Clean up on game end ---
function cleanup() {
	LK.clearInterval(timerInterval);
}