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

/**** 
* Classes
****/ 
var Goalkeeper = Container.expand(function () {
	var self = Container.call(this);
	var keeperGraphics = self.attachAsset('goalkeeper', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.targetX = 1024; // Center of goal
	self.moveSpeed = 15;
	self.update = function () {
		// Smooth movement toward target position
		var dx = self.targetX - self.x;
		if (Math.abs(dx) > 5) {
			self.x += dx * 0.2;
		}
	};
	self.setTarget = function (x) {
		// Keep goalkeeper within goal bounds
		var goalLeft = 424;
		var goalRight = 1624;
		self.targetX = Math.max(goalLeft, Math.min(goalRight, x));
	};
	return self;
});
var SoccerBall = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('soccerBall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 0;
	self.speedY = 0;
	self.active = true;
	self.update = function () {
		if (!self.active) return;
		self.x += self.speedX;
		self.y += self.speedY;
		// Add slight gravity effect
		self.speedY += 0.2;
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var goalkeeper;
var balls = [];
var ballSpawnTimer = 0;
var ballSpawnInterval = 120; // 2 seconds at 60fps
var difficulty = 1;
var saves = 0;
var gameSpeed = 1;
// Create field
var field = game.addChild(LK.getAsset('field', {
	anchorX: 0,
	anchorY: 1,
	x: 0,
	y: 2732
}));
// Create goal structure
var goalNet = game.addChild(LK.getAsset('goalNet', {
	width: 1200,
	anchorX: 0.5,
	anchorY: 1,
	x: 1024,
	y: 2732
}));
goalNet.alpha = 0.3;
var leftPost = game.addChild(LK.getAsset('goalPost', {
	anchorX: 0.5,
	anchorY: 1,
	x: 424,
	y: 2732
}));
var rightPost = game.addChild(LK.getAsset('goalPost', {
	anchorX: 0.5,
	anchorY: 1,
	x: 1624,
	y: 2732
}));
// Create goalkeeper
goalkeeper = game.addChild(new Goalkeeper());
goalkeeper.x = 1024;
goalkeeper.y = 2732;
// Create UI
var scoreTxt = new Text2('Saves: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Ball spawning function
function spawnBall() {
	var ball = new SoccerBall();
	// Random spawn position across the field width
	ball.x = Math.random() * 1600 + 224;
	ball.y = 100;
	// Calculate trajectory toward goal
	var targetX = Math.random() * 1200 + 424; // Random point in goal area
	var targetY = 2732 - 100; // Goal height
	var distance = Math.sqrt(Math.pow(targetX - ball.x, 2) + Math.pow(targetY - ball.y, 2));
	var speed = (3 + difficulty) * gameSpeed;
	ball.speedX = (targetX - ball.x) / distance * speed;
	ball.speedY = (targetY - ball.y) / distance * speed;
	balls.push(ball);
	game.addChild(ball);
	LK.getSound('kick').play();
}
// Touch controls
var isDragging = false;
game.down = function (x, y, obj) {
	isDragging = true;
	goalkeeper.setTarget(x);
};
game.move = function (x, y, obj) {
	if (isDragging) {
		goalkeeper.setTarget(x);
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Main game loop
game.update = function () {
	// Spawn balls
	ballSpawnTimer++;
	if (ballSpawnTimer >= ballSpawnInterval) {
		spawnBall();
		ballSpawnTimer = 0;
		// Increase difficulty over time
		if (ballSpawnInterval > 60) {
			ballSpawnInterval -= 2;
		}
		if (LK.ticks % 600 === 0) {
			// Every 10 seconds
			difficulty += 0.2;
		}
	}
	// Update and check balls
	for (var i = balls.length - 1; i >= 0; i--) {
		var ball = balls[i];
		if (!ball.active) continue;
		// Check if ball went past goal line (goal scored)
		if (ball.y > 2732) {
			LK.getSound('goal').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		// Check for save (collision with goalkeeper)
		if (ball.intersects(goalkeeper) && ball.active) {
			ball.active = false;
			saves++;
			LK.setScore(saves);
			scoreTxt.setText('Saves: ' + saves);
			// Visual feedback for save
			LK.effects.flashObject(goalkeeper, 0x00ff00, 500);
			tween(goalkeeper, {
				scaleX: 1.3,
				scaleY: 1.3
			}, {
				duration: 200,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(goalkeeper, {
						scaleX: 1,
						scaleY: 1
					}, {
						duration: 200,
						easing: tween.easeIn
					});
				}
			});
			LK.getSound('save').play();
			// Remove ball
			ball.destroy();
			balls.splice(i, 1);
			continue;
		}
		// Remove balls that went off screen (missed)
		if (ball.y < -100 || ball.x < -100 || ball.x > 2148) {
			ball.destroy();
			balls.splice(i, 1);
			continue;
		}
		// Check if ball is out of bounds horizontally (safe)
		if ((ball.x < 424 || ball.x > 1624) && ball.y > 2332) {
			ball.active = false;
			ball.destroy();
			balls.splice(i, 1);
			continue;
		}
	}
	// Win condition - 50 saves
	if (saves >= 50) {
		LK.showYouWin();
	}
};
// LK engine handles pause/play functionality automatically through built-in systems