/**** 
* 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.minX = 0;
	self.maxX = 0;
	self.isDiving = false;
	self.dive = function (direction) {
		if (!self.isDiving) {
			self.isDiving = true;
			var targetX = direction > 0 ? self.maxX : self.minX;
			tween(self, {
				x: targetX,
				scaleX: direction > 0 ? 1.2 : -1.2
			}, {
				duration: 300,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(self, {
						scaleX: 1
					}, {
						duration: 200
					});
					self.isDiving = false;
				}
			});
		}
	};
	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.isActive = true;
	self.update = function () {
		if (self.isActive) {
			self.x += self.speedX;
			self.y += self.speedY;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x4CAF50
});

/**** 
* Game Code
****/ 
// Game variables
var goalkeeper;
var soccerBalls = [];
var goalsAllowed = 0;
var maxGoals = 5;
var consecutiveSaves = 0;
var ballSpawnCounter = 0;
var ballSpawnRate = 120; // frames between balls
var gameSpeed = 1;
var isDragging = false;
// Create goal structure
var goalBackground = game.addChild(LK.getAsset('goal', {
	anchorX: 0.5,
	anchorY: 1.0,
	alpha: 0.3
}));
goalBackground.x = 2048 / 2;
goalBackground.y = 2732 - 200;
// Goal posts
var leftPost = game.addChild(LK.getAsset('goalPost', {
	anchorX: 0.5,
	anchorY: 1.0
}));
leftPost.x = 2048 / 2 - 400;
leftPost.y = 2732 - 200;
var rightPost = game.addChild(LK.getAsset('goalPost', {
	anchorX: 0.5,
	anchorY: 1.0
}));
rightPost.x = 2048 / 2 + 400;
rightPost.y = 2732 - 200;
// Goal line
var goalLine = game.addChild(LK.getAsset('goalLine', {
	anchorX: 0.5,
	anchorY: 0.5
}));
goalLine.x = 2048 / 2;
goalLine.y = 2732 - 200;
// Create goalkeeper
goalkeeper = game.addChild(new Goalkeeper());
goalkeeper.x = 2048 / 2;
goalkeeper.y = 2732 - 200;
goalkeeper.minX = 2048 / 2 - 350;
goalkeeper.maxX = 2048 / 2 + 350;
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var goalsTxt = new Text2('Goals: 0/5', {
	size: 60,
	fill: 0xFFFFFF
});
goalsTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(goalsTxt);
var streakTxt = new Text2('Saves: 0', {
	size: 50,
	fill: 0xFFFF00
});
streakTxt.anchor.set(0, 0);
LK.gui.left.addChild(streakTxt);
// Touch/drag controls
game.down = function (x, y, obj) {
	isDragging = true;
	var clampedX = Math.max(goalkeeper.minX, Math.min(goalkeeper.maxX, x));
	goalkeeper.x = clampedX;
};
game.move = function (x, y, obj) {
	if (isDragging) {
		var clampedX = Math.max(goalkeeper.minX, Math.min(goalkeeper.maxX, x));
		goalkeeper.x = clampedX;
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Spawn soccer ball
function spawnSoccerBall() {
	var ball = new SoccerBall();
	// Random spawn position along top of screen
	ball.x = Math.random() * 1848 + 100;
	ball.y = 100;
	// Calculate trajectory toward goal
	var targetX = 2048 / 2 + (Math.random() - 0.5) * 600;
	var targetY = 2732 - 250;
	var distance = Math.sqrt(Math.pow(targetX - ball.x, 2) + Math.pow(targetY - ball.y, 2));
	var speed = 8 + Math.random() * 4 * gameSpeed;
	ball.speedX = (targetX - ball.x) / distance * speed;
	ball.speedY = (targetY - ball.y) / distance * speed;
	ball.lastY = ball.y;
	ball.lastActive = true;
	soccerBalls.push(ball);
	game.addChild(ball);
}
// Main game update loop
game.update = function () {
	// Update ball spawn counter
	ballSpawnCounter++;
	if (ballSpawnCounter >= ballSpawnRate) {
		spawnSoccerBall();
		ballSpawnCounter = 0;
		// Increase difficulty over time
		if (ballSpawnRate > 60) {
			ballSpawnRate = Math.max(60, ballSpawnRate - 1);
		}
		gameSpeed += 0.01;
	}
	// Update soccer balls
	for (var i = soccerBalls.length - 1; i >= 0; i--) {
		var ball = soccerBalls[i];
		if (!ball.isActive) continue;
		// Check if ball went off screen (missed goal)
		if (ball.lastY < 2732 - 180 && ball.y >= 2732 - 180 && ball.isActive) {
			// Check if ball is within goal area
			if (ball.x > 2048 / 2 - 400 && ball.x < 2048 / 2 + 400) {
				// Check if goalkeeper saved it
				if (ball.intersects(goalkeeper)) {
					// SAVE!
					ball.isActive = false;
					LK.setScore(LK.getScore() + 10);
					consecutiveSaves++;
					// Bonus points for consecutive saves
					if (consecutiveSaves > 1) {
						LK.setScore(LK.getScore() + consecutiveSaves * 5);
					}
					// Diving save bonus
					if (goalkeeper.isDiving) {
						LK.setScore(LK.getScore() + 20);
						LK.effects.flashObject(goalkeeper, 0xffff00, 500);
					}
					LK.getSound('save').play();
					LK.effects.flashObject(ball, 0x00ff00, 300);
					// Trigger goalkeeper dive animation
					var direction = ball.x > goalkeeper.x ? 1 : -1;
					goalkeeper.dive(direction);
				} else {
					// GOAL!
					goalsAllowed++;
					consecutiveSaves = 0;
					LK.getSound('goal').play();
					LK.effects.flashScreen(0xff0000, 500);
					if (goalsAllowed >= maxGoals) {
						LK.getSound('whistle').play();
						LK.showGameOver();
						return;
					}
				}
				// Remove ball
				ball.destroy();
				soccerBalls.splice(i, 1);
				continue;
			}
		}
		// Remove balls that go completely off screen
		if (ball.y > 2732 + 100 || ball.x < -100 || ball.x > 2148) {
			ball.destroy();
			soccerBalls.splice(i, 1);
			continue;
		}
		// Update last position
		ball.lastY = ball.y;
	}
	// Update UI
	scoreTxt.setText('Score: ' + LK.getScore());
	goalsTxt.setText('Goals: ' + goalsAllowed + '/' + maxGoals);
	streakTxt.setText('Saves: ' + consecutiveSaves);
};