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

/**** 
* Classes
****/ 
// Goalkeeper class
var Goalkeeper = Container.expand(function () {
	var self = Container.call(this);
	var keeper = self.attachAsset('goalkeeper', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8; // Initial speed
	self.direction = 1; // 1: right, -1: left
	// Update
	self.update = function () {
		self.x += self.speed * self.direction;
		// Bounce off posts
		if (self.x > goalRightX - keeper.width / 2) {
			self.x = goalRightX - keeper.width / 2;
			self.direction = -1;
		}
		if (self.x < goalLeftX + keeper.width / 2) {
			self.x = goalLeftX + keeper.width / 2;
			self.direction = 1;
		}
	};
	// Increase speed
	self.increaseSpeed = function () {
		self.speed += 1.5;
		if (self.speed > 22) self.speed = 22;
	};
	return self;
});
// Soccer Ball class
var SoccerBall = Container.expand(function () {
	var self = Container.call(this);
	// Shadow
	var shadow = self.attachAsset('ballShadow', {
		anchorX: 0.5,
		anchorY: 0.5,
		y: 80,
		alpha: 0.4
	});
	// Ball
	var ball = self.attachAsset('soccerBall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vx = 0;
	self.vy = 0;
	self.isShot = false;
	self.hasScored = false;
	self.hasMissed = false;
	// Feedback
	self.showGoal = function () {
		var goalFx = LK.getAsset('goalCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			alpha: 0.7
		});
		self.addChild(goalFx);
		tween(goalFx, {
			alpha: 0
		}, {
			duration: 600,
			onFinish: function onFinish() {
				goalFx.destroy();
			}
		});
	};
	self.showMiss = function () {
		var missFx = LK.getAsset('missCircle', {
			anchorX: 0.5,
			anchorY: 0.5,
			alpha: 0.7
		});
		self.addChild(missFx);
		tween(missFx, {
			alpha: 0
		}, {
			duration: 600,
			onFinish: function onFinish() {
				missFx.destroy();
			}
		});
	};
	// Ball update
	self.update = function () {
		if (self.isShot) {
			self.x += self.vx;
			self.y += self.vy;
			// Simulate friction/air resistance
			self.vx *= 0.99;
			self.vy *= 0.99;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a472a // Dark green pitch
});

/**** 
* Game Code
****/ 
// Goal feedback (yellow)
// Miss feedback (red)
// Net posts (gray)
// Ball shadow (gray)
// Goal area (light green)
// Goalkeeper (blue)
// Soccer ball (white)
// --- Game constants ---
var goalWidth = 900;
var goalHeight = 40;
var goalY = 420; // Y position of goal line
var goalX = (2048 - goalWidth) / 2;
var goalLeftX = goalX;
var goalRightX = goalX + goalWidth;
var goalPostHeight = 180;
var shotsTotal = 10;
// --- Game state ---
var balls = [];
var shotsLeft = shotsTotal;
var score = 0;
var isShooting = false;
var canShoot = true;
var swipeStart = null;
var swipeEnd = null;
var currentBall = null;
var goalkeeper = null;
var lastGoalkeeperSpeedupScore = 0;
// --- UI Elements ---
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFF700
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var shotsTxt = new Text2('Shots: ' + shotsLeft, {
	size: 70,
	fill: 0xFFFFFF
});
shotsTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(shotsTxt);
shotsTxt.y = 120;
// --- Draw goal area ---
var goalArea = LK.getAsset('goalArea', {
	anchorX: 0,
	anchorY: 0,
	x: goalX,
	y: goalY
});
game.addChild(goalArea);
// Goal posts
var leftPost = LK.getAsset('goalPost', {
	anchorX: 0.5,
	anchorY: 1,
	x: goalLeftX,
	y: goalY + goalPostHeight
});
var rightPost = LK.getAsset('goalPost', {
	anchorX: 0.5,
	anchorY: 1,
	x: goalRightX,
	y: goalY + goalPostHeight
});
game.addChild(leftPost);
game.addChild(rightPost);
// --- Add goalkeeper ---
goalkeeper = new Goalkeeper();
goalkeeper.x = 2048 / 2;
goalkeeper.y = goalY + 40;
game.addChild(goalkeeper);
// --- Ball spawn position ---
var ballStartX = 2048 / 2;
var ballStartY = 2732 - 320;
// --- Functions ---
function spawnBall() {
	var ball = new SoccerBall();
	ball.x = ballStartX;
	ball.y = ballStartY;
	balls.push(ball);
	game.addChild(ball);
	currentBall = ball;
	isShooting = false;
	canShoot = true;
}
function resetGame() {
	// Remove all balls
	for (var i = 0; i < balls.length; ++i) {
		balls[i].destroy();
	}
	balls = [];
	shotsLeft = shotsTotal;
	score = 0;
	lastGoalkeeperSpeedupScore = 0;
	scoreTxt.setText(score);
	shotsTxt.setText('Shots: ' + shotsLeft);
	goalkeeper.speed = 8;
	goalkeeper.x = 2048 / 2;
	spawnBall();
}
function shootBall(vx, vy) {
	if (!currentBall || !canShoot) return;
	currentBall.vx = vx;
	currentBall.vy = vy;
	currentBall.isShot = true;
	isShooting = true;
	canShoot = false;
	shotsLeft -= 1;
	shotsTxt.setText('Shots: ' + shotsLeft);
}
// --- Input handling (swipe or tap) ---
game.down = function (x, y, obj) {
	if (!canShoot) return;
	// Only allow starting swipe/tap from lower half of screen
	if (y < 1800) return;
	swipeStart = {
		x: x,
		y: y
	};
	swipeEnd = null;
};
game.move = function (x, y, obj) {
	if (!canShoot || !swipeStart) return;
	swipeEnd = {
		x: x,
		y: y
	};
};
game.up = function (x, y, obj) {
	if (!canShoot || !swipeStart) return;
	swipeEnd = {
		x: x,
		y: y
	};
	// Calculate direction and power
	var dx = swipeEnd.x - swipeStart.x;
	var dy = swipeEnd.y - swipeStart.y;
	// Only allow upward swipes/taps
	if (dy > -40) {
		// Not enough upward movement, treat as tap
		dx = 0;
		dy = -900;
	}
	// Clamp power
	var power = Math.sqrt(dx * dx + dy * dy);
	if (power < 200) power = 200;
	if (power > 1200) power = 1200;
	// Normalize
	var norm = Math.sqrt(dx * dx + dy * dy);
	var vx = 0,
		vy = 0;
	if (norm > 0) {
		vx = dx / norm * (power / 22);
		vy = dy / norm * (power / 18);
	} else {
		vx = 0;
		vy = -power / 18;
	}
	shootBall(vx, vy);
	swipeStart = null;
	swipeEnd = null;
};
// --- Main update loop ---
game.update = function () {
	// Update goalkeeper
	if (goalkeeper) goalkeeper.update();
	// Update balls
	for (var i = balls.length - 1; i >= 0; --i) {
		var ball = balls[i];
		ball.update();
		// Only check for scoring/miss if ball is shot and not already scored/missed
		if (ball.isShot && !ball.hasScored && !ball.hasMissed) {
			// Check if ball crosses goal line (y <= goalY+goalHeight)
			if (ball.y <= goalY + goalHeight / 2 && ball.y > goalY - 80) {
				// Check if within goal posts
				if (ball.x > goalLeftX + 60 && ball.x < goalRightX - 60) {
					// Check collision with goalkeeper
					var keeperRect = {
						x: goalkeeper.x - 110,
						y: goalkeeper.y - 40,
						w: 220,
						h: 80
					};
					var ballRect = {
						x: ball.x - 60,
						y: ball.y - 60,
						w: 120,
						h: 120
					};
					var intersects = !(keeperRect.x + keeperRect.w < ballRect.x || keeperRect.x > ballRect.x + ballRect.w || keeperRect.y + keeperRect.h < ballRect.y || keeperRect.y > ballRect.y + ballRect.h);
					if (!intersects) {
						// GOAL!
						ball.hasScored = true;
						score += 1;
						scoreTxt.setText(score);
						ball.showGoal();
						// Speed up goalkeeper every 2 goals
						if (score - lastGoalkeeperSpeedupScore >= 2) {
							goalkeeper.increaseSpeed();
							lastGoalkeeperSpeedupScore = score;
						}
					} else {
						// Saved by keeper
						ball.hasMissed = true;
						ball.showMiss();
					}
				} else {
					// Missed wide
					ball.hasMissed = true;
					ball.showMiss();
				}
			}
			// Missed high
			if (ball.y < goalY - 100) {
				if (!ball.hasScored && !ball.hasMissed) {
					ball.hasMissed = true;
					ball.showMiss();
				}
			}
		}
		// Remove ball if out of bounds
		if (ball.y < -200 || ball.x < -200 || ball.x > 2248) {
			ball.destroy();
			balls.splice(i, 1);
			if (currentBall === ball) currentBall = null;
		}
	}
	// After shot, wait for ball to stop or leave screen, then spawn next ball or end game
	if (isShooting && !currentBall) {
		if (shotsLeft > 0) {
			spawnBall();
		} else {
			// Game over
			LK.showGameOver();
		}
		isShooting = false;
	}
	// If current ball is shot and has scored/missed, and is slow or out of bounds, remove it
	if (currentBall && currentBall.isShot && (currentBall.hasScored || currentBall.hasMissed)) {
		var speed = Math.sqrt(currentBall.vx * currentBall.vx + currentBall.vy * currentBall.vy);
		if (speed < 2 || currentBall.y < -200 || currentBall.x < -200 || currentBall.x > 2248) {
			currentBall.destroy();
			for (var j = 0; j < balls.length; ++j) {
				if (balls[j] === currentBall) {
					balls.splice(j, 1);
					break;
				}
			}
			currentBall = null;
		}
	}
	// Win condition: score 10 goals
	if (score >= 10) {
		LK.showYouWin();
	}
};
// --- Start game ---
resetGame();