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

/**** 
* Classes
****/ 
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.isMoving = false;
	self.update = function () {
		if (self.isMoving) {
			self.x += self.velocityX;
			self.y += self.velocityY;
			// Apply gravity
			self.velocityY += 0.5;
			// Check if ball hits ground - stop completely, no bouncing
			if (self.y >= grassY - 30) {
				self.isMoving = false;
				self.velocityX = 0;
				self.velocityY = 0;
				self.y = grassY - 50;
				ballStopped();
			}
		}
	};
	self.kick = function (power, angle) {
		self.isMoving = true;
		var speed = power * 40;
		self.velocityX = Math.cos(angle) * speed;
		self.velocityY = Math.sin(angle) * speed;
		LK.getSound('kick').play();
	};
	return self;
});
var Goalkeeper = Container.expand(function () {
	var self = Container.call(this);
	var keeperGraphics = self.attachAsset('goalkeeper', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.direction = 1;
	self.speed = 2;
	self.minX = goalCenterX - 180;
	self.maxX = goalCenterX + 180;
	self.isDiving = false;
	self.update = function () {
		if (!self.isDiving) {
			self.x += self.direction * self.speed;
			if (self.x <= self.minX || self.x >= self.maxX) {
				self.direction *= -1;
			}
		}
	};
	self.dive = function (ballX) {
		if (self.isDiving) {
			return;
		}
		self.isDiving = true;
		var targetX = ballX;
		// Clamp target to goal bounds
		if (targetX < self.minX) {
			targetX = self.minX;
		}
		if (targetX > self.maxX) {
			targetX = self.maxX;
		}
		tween(self, {
			x: targetX
		}, {
			duration: 300,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				LK.setTimeout(function () {
					self.isDiving = false;
				}, 1000);
			}
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x228B22
});

/**** 
* Game Code
****/ 
// Game constants
var goalCenterX = 1024;
var goalCenterY = 400;
var grassY = 2200;
var penaltySpotX = 1024;
var penaltySpotY = 800;
// Game state
var gameState = 'aiming'; // 'aiming', 'charging', 'kicked', 'result'
var aimAngle = -Math.PI / 2; // Start aiming straight up
var power = 0;
var powerDirection = 1;
var goals = 0;
var misses = 0;
var maxMisses = 3;
// Create grass field
var grass = game.addChild(LK.getAsset('grass', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 1024,
	y: grassY
}));
// Create goal posts
var leftPost = game.addChild(LK.getAsset('goalpost', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: goalCenterX - 200,
	y: goalCenterY + 200
}));
var rightPost = game.addChild(LK.getAsset('goalpost', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: goalCenterX + 200,
	y: goalCenterY + 200
}));
var crossbar = game.addChild(LK.getAsset('crossbar', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: goalCenterX,
	y: goalCenterY
}));
// Create penalty spot
var penaltySpot = game.addChild(LK.getAsset('penaltySpot', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: penaltySpotX,
	y: penaltySpotY
}));
// Create ball
var ball = game.addChild(new Ball());
resetBallPosition();
// Create goalkeeper
var goalkeeper = game.addChild(new Goalkeeper());
goalkeeper.x = goalCenterX;
goalkeeper.y = goalCenterY + 200;
// Create aim line (initially hidden)
var aimLine = game.addChild(LK.getAsset('aimLine', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: penaltySpotX,
	y: penaltySpotY,
	alpha: 0
}));
// Create power bar (initially hidden)
var powerBar = game.addChild(LK.getAsset('powerBar', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 200,
	y: 1000,
	alpha: 0,
	scaleY: 0
}));
// UI Elements
var scoreText = new Text2('Goals: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var missesText = new Text2('Misses: 0/3', {
	size: 60,
	fill: 0xFFFFFF
});
missesText.anchor.set(1.0, 0);
LK.gui.topRight.addChild(missesText);
var instructionText = new Text2('Tap and hold to aim and charge power', {
	size: 50,
	fill: 0xFFFFFF
});
instructionText.anchor.set(0.5, 1.0);
LK.gui.bottom.addChild(instructionText);
// Game functions
function resetBallPosition() {
	ball.x = penaltySpotX;
	ball.y = penaltySpotY - 30;
	ball.isMoving = false;
	ball.velocityX = 0;
	ball.velocityY = 0;
}
function updateAimLine() {
	var lineLength = 150;
	var endX = ball.x + Math.cos(aimAngle) * lineLength;
	var endY = ball.y + Math.sin(aimAngle) * lineLength;
	aimLine.x = ball.x;
	aimLine.y = ball.y;
	aimLine.rotation = aimAngle + Math.PI / 2;
}
function updatePowerBar() {
	powerBar.scaleY = power;
	var colorValue = Math.floor(power * 255);
	powerBar.tint = colorValue << 16 | 255 - colorValue << 8;
}
function ballStopped() {
	// Check if goal was scored
	if (ball.x > goalCenterX - 200 && ball.x < goalCenterX + 200 && ball.y < goalCenterY + 200 && ball.y > goalCenterY - 50) {
		// Goal scored
		goals++;
		scoreText.setText('Goals: ' + goals);
		LK.setScore(goals);
		LK.getSound('goal').play();
		// Flash screen green
		LK.effects.flashScreen(0x00ff00, 500);
		// Increase goalkeeper speed slightly
		goalkeeper.speed = Math.min(goalkeeper.speed + 0.2, 6);
	} else {
		// Missed
		misses++;
		missesText.setText('Misses: ' + misses + '/' + maxMisses);
		if (misses >= maxMisses) {
			LK.showGameOver();
			return;
		}
	}
	// Reset for next shot
	LK.setTimeout(function () {
		resetBallPosition();
		gameState = 'aiming';
		instructionText.setText('Tap and hold to aim and charge power');
	}, 1500);
}
function checkGoalkeeperSave() {
	if (ball.isMoving && ball.y < goalCenterY + 150 && ball.y > goalCenterY - 50) {
		var distanceToKeeper = Math.abs(ball.x - goalkeeper.x);
		if (distanceToKeeper < 60) {
			// Goalkeeper save
			ball.isMoving = false;
			ball.velocityX = 0;
			ball.velocityY = 0;
			LK.getSound('save').play();
			// Flash screen red
			LK.effects.flashScreen(0xff0000, 500);
			ballStopped();
		}
	}
}
// Touch/mouse input handling
game.down = function (x, y, obj) {
	if (gameState === 'aiming') {
		gameState = 'charging';
		power = 0;
		powerDirection = 1;
		// Show UI elements
		aimLine.alpha = 1;
		powerBar.alpha = 1;
		instructionText.setText('Release to kick!');
	}
};
game.move = function (x, y, obj) {
	if (gameState === 'charging') {
		// Update aim angle based on touch position relative to ball
		var dx = x - ball.x;
		var dy = y - ball.y;
		aimAngle = Math.atan2(dy, dx);
		// Limit aim angle to reasonable shooting range
		aimAngle = Math.max(aimAngle, -Math.PI * 0.8);
		aimAngle = Math.min(aimAngle, -Math.PI * 0.2);
		updateAimLine();
	}
};
game.up = function (x, y, obj) {
	if (gameState === 'charging') {
		gameState = 'kicked';
		// Hide UI elements
		aimLine.alpha = 0;
		powerBar.alpha = 0;
		// Kick the ball
		ball.kick(power, aimAngle);
		// Make goalkeeper dive
		goalkeeper.dive(ball.x + Math.cos(aimAngle) * 200);
		instructionText.setText('');
	}
};
// Main game loop
game.update = function () {
	if (gameState === 'charging') {
		// Update power
		power += powerDirection * 0.03;
		if (power >= 1) {
			power = 1;
			powerDirection = -1;
		} else if (power <= 0) {
			power = 0;
			powerDirection = 1;
		}
		updatePowerBar();
	}
	if (gameState === 'kicked' && ball.isMoving) {
		checkGoalkeeperSave();
	}
};