/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0
});

/**** 
* Classes
****/ 
var Collectible = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'fuel';
	var assetType = self.type === 'fuel' ? 'fuel' : 'speedBoost';
	var collectibleGraphics = self.attachAsset(assetType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.active = true;
	self.pulseDirection = 1;
	self.pulseAmount = 0;
	self.update = function () {
		if (!self.active) {
			return;
		}
		self.x -= gameSpeed;
		// Pulsing animation
		self.pulseAmount += 0.02 * self.pulseDirection;
		if (self.pulseAmount > 0.2 || self.pulseAmount < 0) {
			self.pulseDirection *= -1;
		}
		collectibleGraphics.scaleX = 1 + self.pulseAmount;
		collectibleGraphics.scaleY = 1 + self.pulseAmount;
		// Remove if off screen
		if (self.x < -100) {
			self.active = false;
		}
	};
	self.collect = function () {
		if (self.active) {
			self.active = false;
			LK.getSound('collect').play();
			var effect = {
				alpha: 1,
				scaleX: 1,
				scaleY: 1,
				y: self.y
			};
			tween(effect, {
				alpha: 0,
				scaleX: 2,
				scaleY: 2,
				y: self.y - 100
			}, {
				duration: 600,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
			return self.type;
		}
		return null;
	};
	return self;
});
var FareObstacle = Container.expand(function () {
	var self = Container.call(this);
	var fareObstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'fareObstacle';
	self.active = true;
	self.update = function () {
		if (!self.active) {
			return;
		}
		self.x -= gameSpeed;
		if (self.x < -100) {
			self.active = false;
		}
	};
	return self;
});
var FuelItem = Container.expand(function () {
	var self = Container.call(this);
	var fuelItemGraphics = self.attachAsset('fuel', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'fuelItem';
	self.active = true;
	self.update = function () {
		if (!self.active) {
			return;
		}
		self.x -= gameSpeed;
		if (self.x < -100) {
			self.active = false;
		}
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'obstacle';
	self.active = true;
	self.update = function () {
		if (!self.active) {
			return;
		}
		self.x -= gameSpeed;
		// Remove if off screen
		if (self.x < -100) {
			self.active = false;
		}
	};
	return self;
});
var RoadLine = Container.expand(function () {
	var self = Container.call(this);
	var lineGraphics = self.attachAsset('roadLine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.x -= gameSpeed;
		// Reset position if off screen
		if (self.x < -100) {
			self.x = 2148;
		}
	};
	return self;
});
var Vehicle = Container.expand(function () {
	var self = Container.call(this);
	var vehicleGraphics = self.attachAsset('vehicle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Vehicle properties
	self.speed = 1;
	self.maxSpeed = 15;
	self.acceleration = 0.005;
	self.jumping = false;
	self.jumpHeight = 200;
	self.jumpSpeed = 15;
	self.jumpVelocity = 0;
	self.gravity = 0.8;
	self.crashed = false;
	// Movement control
	self.moveUp = function () {
		if (self.y > roadTop + 50) {
			self.y -= 20;
		}
	};
	self.moveDown = function () {
		if (self.y < roadBottom - 50) {
			self.y += 20;
		}
	};
	self.jump = function () {
		if (!self.jumping && !self.crashed) {
			self.jumping = true;
			self.jumpVelocity = -self.jumpSpeed;
		}
	};
	self.crash = function () {
		if (!self.crashed) {
			self.crashed = true;
			LK.getSound('crash').play();
			LK.effects.flashObject(self, 0xff0000, 1000);
			// Create explosion effect
			var explosion = LK.getAsset('explosion', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: self.x,
				y: self.y,
				alpha: 0.8
			});
			game.addChild(explosion);
			// Scale explosion and fade out
			tween(explosion, {
				scaleX: 2,
				scaleY: 2,
				alpha: 0
			}, {
				duration: 800,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					explosion.destroy();
				}
			});
			// Tilt vehicle
			tween(vehicleGraphics, {
				rotation: Math.PI / 4
			}, {
				duration: 500,
				easing: tween.bounceOut
			});
			// Game over after short delay
			LK.setTimeout(function () {
				if (distance > storage.highScore) {
					storage.highScore = Math.floor(distance);
				}
				LK.showGameOver();
			}, 1200);
		}
	};
	self.update = function () {
		if (self.crashed) {
			return;
		}
		// Update speed
		if (self.speed < self.maxSpeed) {
			self.speed += self.acceleration;
		}
		// Handle jumping
		if (self.jumping) {
			self.y += self.jumpVelocity;
			self.jumpVelocity += self.gravity;
			// Check if landing
			if (self.jumpVelocity > 0 && self.y >= self.jumpStartY) {
				self.y = self.jumpStartY;
				self.jumping = false;
				self.jumpVelocity = 0;
			}
		}
		// Small bounce effect
		if (!self.jumping && !self.tweening) {
			self.tweening = true;
			tween(vehicleGraphics, {
				rotation: -0.05
			}, {
				duration: 300,
				easing: tween.linear,
				onFinish: function onFinish() {
					tween(vehicleGraphics, {
						rotation: 0
					}, {
						duration: 300,
						easing: tween.linear,
						onFinish: function onFinish() {
							self.tweening = false;
						}
					});
				}
			});
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var vehicle;
var obstacles = [];
var collectibles = [];
var roadLines = [];
var gameSpeed = 8;
var baseSpeed = 8;
var speedMultiplier = 1;
var distance = 0;
var fuelLevel = 100;
var gameStarted = false;
var roadTop = 2732 - 500; // Top of road area
var roadBottom = 2732 - 200; // Bottom of road area
var spawnTimer = 0;
var obstacleSpawnRate = 180; // frames between obstacle spawns
var collectibleSpawnRate = 180; // frames between collectible spawns
var lastObstacleSpawn = 0;
var lastCollectibleSpawn = 0;
// Add background image
var background = LK.getAsset('backgroundImage', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0,
	width: 2048,
	height: 2732
});
game.addChild(background);
// Create road
var road = LK.getAsset('road', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: roadTop,
	width: 2048
});
game.addChild(road);
// Create road lines
for (var i = 0; i < 10; i++) {
	var roadLine = new RoadLine();
	roadLine.x = i * 220;
	roadLine.y = roadTop + 150;
	roadLines.push(roadLine);
	game.addChild(roadLine);
}
// Create player vehicle
vehicle = new Vehicle();
vehicle.x = 300;
vehicle.y = roadTop + 150;
vehicle.jumpStartY = vehicle.y;
game.addChild(vehicle);
// Create score text
var scoreTxt = new Text2('Distance: 0m', {
	size: 70,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create fuel meter
var fuelBarBg = LK.getAsset('road', {
	anchorX: 0,
	anchorY: 0,
	width: 300,
	height: 30,
	color: 0x555555,
	x: 0,
	y: 0
});
var fuelBar = LK.getAsset('road', {
	anchorX: 0,
	anchorY: 0,
	width: 300,
	height: 30,
	color: 0x2ecc71,
	x: 0,
	y: 0
});
var fuelText = new Text2('FUEL', {
	size: 20,
	fill: 0xFFFFFF
});
fuelText.anchor.set(0.5, 0.5);
fuelText.x = 150;
fuelText.y = 15;
var fuelContainer = new Container();
fuelContainer.addChild(fuelBarBg);
fuelContainer.addChild(fuelBar);
fuelContainer.addChild(fuelText);
fuelContainer.x = 20;
fuelContainer.y = 20;
LK.gui.topLeft.addChild(fuelContainer);
// Create high score display
var highScoreTxt = new Text2('Best: ' + storage.highScore + 'm', {
	size: 50,
	fill: 0xFFFFFF
});
highScoreTxt.anchor.set(1, 0);
highScoreTxt.x = -20;
highScoreTxt.y = 20;
LK.gui.topRight.addChild(highScoreTxt);
// Speed boost indicator
var boostIndicator = new Text2('BOOST!', {
	size: 60,
	fill: 0xF1C40F
});
boostIndicator.anchor.set(0.5, 0);
boostIndicator.y = 100;
boostIndicator.alpha = 0;
LK.gui.top.addChild(boostIndicator);
// Create tap controls
function createControlButton(text, x, y, action) {
	var button = new Container();
	var buttonBg = LK.getAsset('road', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: 200,
		height: 200,
		color: 0x000000,
		alpha: 0.3
	});
	button.addChild(buttonBg);
	var buttonText = new Text2(text, {
		size: 60,
		fill: 0xFFFFFF
	});
	buttonText.anchor.set(0.5, 0.5);
	button.addChild(buttonText);
	button.x = x;
	button.y = y;
	button.interactive = true;
	button.down = function () {
		buttonBg.alpha = 0.5;
		action();
	};
	button.up = function () {
		buttonBg.alpha = 0.3;
	};
	return button;
}
var upButton = createControlButton("↑", -300, -200, function () {
	vehicle.moveUp();
});
var downButton = createControlButton("↓", -300, -50, function () {
	vehicle.moveDown();
});
var jumpButton = createControlButton("JUMP", 300, -125, function () {
	vehicle.jump();
});
LK.gui.bottom.addChild(upButton);
LK.gui.bottom.addChild(downButton);
LK.gui.bottom.addChild(jumpButton);
// Start the game
LK.playMusic('gameMusic');
gameStarted = true;
// Spawn objects
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = 2200;
	// Random position on road
	obstacle.y = roadTop + 50 + Math.random() * (roadBottom - roadTop - 100);
	obstacles.push(obstacle);
	game.addChild(obstacle);
	lastObstacleSpawn = LK.ticks;
}
function spawnCollectible() {
	var type = Math.random() < 0.7 ? 'fuel' : 'speedBoost';
	var collectible = new Collectible(type);
	collectible.x = 2200;
	// Random position on road
	collectible.y = roadTop + 50 + Math.random() * (roadBottom - roadTop - 100);
	collectibles.push(collectible);
	game.addChild(collectible);
	lastCollectibleSpawn = LK.ticks;
}
// Game update function
game.update = function () {
	if (!gameStarted || vehicle.crashed) {
		return;
	}
	// Calculate game speed
	gameSpeed = baseSpeed * speedMultiplier;
	// Update vehicle
	vehicle.update();
	// Update road lines
	for (var i = 0; i < roadLines.length; i++) {
		roadLines[i].update();
	}
	// Spawn obstacles
	if (LK.ticks - lastObstacleSpawn > obstacleSpawnRate) {
		spawnObstacle();
		// Gradually decrease spawn rate to increase difficulty
		obstacleSpawnRate = Math.max(60, obstacleSpawnRate - 0.5);
		// Randomly spawn fare obstacle with a lower probability
		if (Math.random() < 0.1) {
			var fareObstacle = new FareObstacle();
			fareObstacle.x = 2200;
			fareObstacle.y = roadTop + 50 + Math.random() * (roadBottom - roadTop - 100);
			obstacles.push(fareObstacle);
			game.addChild(fareObstacle);
		}
	}
	// Spawn fuel items separately
	if (LK.ticks - lastCollectibleSpawn > collectibleSpawnRate) {
		// Randomly spawn fuel item with a lower probability
		if (Math.random() < 0.1) {
			var fuelItem = new FuelItem();
			fuelItem.x = 2200;
			fuelItem.y = roadTop + 50 + Math.random() * (roadBottom - roadTop - 100);
			collectibles.push(fuelItem);
			game.addChild(fuelItem);
		}
	}
	// Spawn collectibles
	if (LK.ticks - lastCollectibleSpawn > collectibleSpawnRate) {
		spawnCollectible();
	}
	// Update obstacles and check collisions
	for (var j = obstacles.length - 1; j >= 0; j--) {
		var obstacle = obstacles[j];
		obstacle.update();
		// Check collision with vehicle
		if (obstacle.active && !vehicle.crashed && !vehicle.invulnerable && vehicle.intersects(obstacle)) {
			vehicle.crash();
		}
		// Remove inactive obstacles
		if (!obstacle.active) {
			obstacle.destroy();
			obstacles.splice(j, 1);
		}
	}
	// Update collectibles and check collection
	for (var k = collectibles.length - 1; k >= 0; k--) {
		var collectible = collectibles[k];
		collectible.update();
		// Check collection
		if (collectible.active && vehicle.intersects(collectible)) {
			if (typeof collectible.collect === 'function') {
				var collectibleType = collectible.collect();
			}
			if (collectibleType === 'fuel') {
				// Add fuel
				fuelLevel = Math.min(100, fuelLevel + 30);
				fuelBar.width = fuelLevel / 100 * 300;
				// Flash fuel text
				tween(fuelText, {
					tint: 0x2ecc71
				}, {
					duration: 300,
					onFinish: function onFinish() {
						tween(fuelText, {
							tint: 0xffffff
						}, {
							duration: 300
						});
					}
				});
			} else if (collectibleType === 'speedBoost') {
				// Speed boost
				LK.getSound('boost').play();
				speedMultiplier = 1.5;
				// Show boost indicator
				boostIndicator.alpha = 1;
				// Reset multiplier after 3 seconds
				LK.setTimeout(function () {
					tween(boostIndicator, {
						alpha: 0
					}, {
						duration: 500
					});
					speedMultiplier = 1;
				}, 3000);
			}
			collectibles.splice(k, 1);
		}
	}
	// Update distance and score
	distance += gameSpeed / 30;
	scoreTxt.setText('Distance: ' + Math.floor(distance) + 'm');
	// Update fuel
	fuelLevel -= 0.05 * speedMultiplier;
	fuelBar.width = fuelLevel / 100 * 300;
	// Change fuel bar color based on level
	if (fuelLevel < 30) {
		fuelBar.tint = 0xe74c3c; // Red when low
	} else if (fuelLevel < 60) {
		fuelBar.tint = 0xf39c12; // Orange when medium
	} else {
		fuelBar.tint = 0x2ecc71; // Green when high
	}
	// Game over if fuel depleted
	if (fuelLevel <= 0) {
		vehicle.crash();
	}
	// Increase speed over time (difficulty progression)
	if (LK.ticks % 300 === 0) {
		baseSpeed += 0.2;
	}
};
// Game input handling
game.down = function (x, y, obj) {
	// Jump if tap in the right half of the screen
	if (x > 1024 && !vehicle.jumping && !vehicle.crashed) {
		vehicle.jump();
	}
	// Move up if tap in the top quarter of left half
	else if (x < 1024 && y < 683) {
		vehicle.moveUp();
	}
	// Move down if tap in the bottom quarter of left half
	else if (x < 1024 && y >= 683) {
		vehicle.moveDown();
	}
};