/**** 
* Classes
****/ 
//var tween = LK.import("@upit/tween.v1");
// Civilian car class (obstacle)
var Car = Container.expand(function () {
	var self = Container.call(this);
	self.speed = 8 + Math.random() * 6;
	self.direction = Math.random() < 0.5 ? 1 : -1; // 1: right, -1: left
	var carSprite = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Update: move horizontally
	self.update = function () {
		self.x += self.speed * self.direction;
	};
	return self;
});
// Health pack class
var HealthPack = Container.expand(function () {
	var self = Container.call(this);
	var healthSprite = self.attachAsset('health', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
// Loot class
var Loot = Container.expand(function () {
	var self = Container.call(this);
	var lootSprite = self.attachAsset('loot', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	self.isInVehicle = false;
	self.health = 30;
	self.speed = 12;
	self.vehicleSpeed = 22;
	self.invincible = false;
	self.invincibleTimer = 0;
	// Attach player asset
	var playerSprite = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Attach vehicle asset (hidden by default)
	var vehicleSprite = self.attachAsset('stolenCar', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	// Switch to vehicle mode
	self.enterVehicle = function () {
		self.isInVehicle = true;
		playerSprite.alpha = 0;
		vehicleSprite.alpha = 1;
	};
	// Exit vehicle mode
	self.exitVehicle = function () {
		self.isInVehicle = false;
		playerSprite.alpha = 1;
		vehicleSprite.alpha = 0;
	};
	// Take damage (with invincibility frames)
	self.takeDamage = function () {
		if (self.invincible) {
			return;
		}
		self.health -= 1;
		self.invincible = true;
		self.invincibleTimer = 60; // 1 second at 60fps
		LK.effects.flashObject(self, 0xff0000, 400);
	};
	// Heal
	self.heal = function () {
		if (!self.maxHealth) self.maxHealth = 30;
		if (self.health < self.maxHealth) {
			self.health += 1;
		}
	};
	// Update (invincibility timer)
	self.update = function () {
		if (self.invincible) {
			self.invincibleTimer--;
			if (self.invincibleTimer <= 0) {
				self.invincible = false;
			}
		}
	};
	return self;
});
// Police car class
var Police = Container.expand(function () {
	var self = Container.call(this);
	self.speed = 10 + Math.random() * 4;
	self.target = null;
	var policeSprite = self.attachAsset('police', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set target (player)
	self.setTarget = function (target) {
		self.target = target;
	};
	// Update: chase player
	self.update = function () {
		if (!self.target) {
			return;
		}
		var dx = self.target.x - self.x;
		var dy = self.target.y - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist > 0) {
			self.x += dx / dist * self.speed;
			self.y += dy / dist * self.speed;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xe0e0e0
});

/**** 
* Game Code
****/ 
// --- Global variables ---
// City background (large, light gray)
// Player (thief) - red ellipse
// Police car - blue box
// Civilian car - gray box
// Loot - yellow ellipse
// Health pack - green ellipse
// Stolen vehicle (player) - orange box
var player;
var policeCars = [];
var cars = [];
var loots = [];
var healthPacks = [];
var score = 0;
var heistObjective = 5; // Number of loot to collect per level
var lootCollected = 0;
var level = 1;
var dragNode = null;
var lastMoveX = 0,
	lastMoveY = 0;
// --- Background ---
var cityBg = LK.getAsset('cityBg', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
game.addChild(cityBg);
// --- Score and Health UI ---
var scoreTxt = new Text2('Score: 0  |  HP: 30', {
	size: 90,
	fill: "#222"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var healthTxt = new Text2('♥♥♥', {
	size: 90,
	fill: 0xD83318
});
healthTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(healthTxt);
healthTxt.y = 100;
// --- Objective UI ---
var objTxt = new Text2('Loot: 0/5', {
	size: 70,
	fill: "#444"
});
objTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(objTxt);
objTxt.y = 200;
// --- Helper functions ---
function updateScoreUI() {
	if (player) {
		scoreTxt.setText('Score: ' + score + '  |  HP: ' + player.health);
	} else {
		scoreTxt.setText('Score: ' + score);
	}
}
function updateHealthUI() {
	var hearts = '';
	var maxHearts = player.maxHealth ? player.maxHealth : 30;
	for (var i = 0; i < player.health && i < maxHearts; i++) {
		hearts += '♥';
	}
	healthTxt.setText(hearts + '  (' + player.health + ')');
	updateScoreUI();
}
function updateObjectiveUI() {
	objTxt.setText('Loot: ' + lootCollected + '/' + heistObjective);
}
function spawnLoot() {
	var loot = new Loot();
	// Place randomly, not too close to edges or top left
	loot.x = 200 + Math.random() * (2048 - 400);
	loot.y = 300 + Math.random() * (2732 - 600);
	loots.push(loot);
	game.addChild(loot);
}
function spawnHealthPack() {
	var hp = new HealthPack();
	hp.x = 200 + Math.random() * (2048 - 400);
	hp.y = 300 + Math.random() * (2732 - 600);
	healthPacks.push(hp);
	game.addChild(hp);
}
function spawnPolice() {
	var police = new Police();
	// Spawn at random edge
	var edge = Math.floor(Math.random() * 4);
	if (edge === 0) {
		// Top
		police.x = 200 + Math.random() * (2048 - 400);
		police.y = 0;
	} else if (edge === 1) {
		// Bottom
		police.x = 200 + Math.random() * (2048 - 400);
		police.y = 2732;
	} else if (edge === 2) {
		// Left
		police.x = 0;
		police.y = 300 + Math.random() * (2732 - 600);
	} else {
		// Right
		police.x = 2048;
		police.y = 300 + Math.random() * (2732 - 600);
	}
	police.setTarget(player);
	policeCars.push(police);
	game.addChild(police);
}
function spawnCar() {
	var car = new Car();
	// Randomly choose top or bottom lane
	var laneY = 500 + Math.floor(Math.random() * 8) * 250;
	car.y = laneY;
	if (car.direction === 1) {
		car.x = -100;
	} else {
		car.x = 2048 + 100;
	}
	cars.push(car);
	game.addChild(car);
}
function resetLevel() {
	// Remove all loot, police, cars, health packs
	for (var i = 0; i < loots.length; i++) {
		loots[i].destroy();
	}
	for (var i = 0; i < policeCars.length; i++) {
		policeCars[i].destroy();
	}
	for (var i = 0; i < cars.length; i++) {
		cars[i].destroy();
	}
	for (var i = 0; i < healthPacks.length; i++) {
		healthPacks[i].destroy();
	}
	loots = [];
	policeCars = [];
	cars = [];
	healthPacks = [];
	lootCollected = 0;
	heistObjective = 5 + (level - 1) * 2;
	updateObjectiveUI();
	// Spawn loot
	for (var i = 0; i < heistObjective; i++) {
		spawnLoot();
	}
	// Spawn police immediately at level start
	for (var i = 0; i < Math.min(2 + level, 6); i++) {
		spawnPolice();
	}
	// Spawn cars
	for (var i = 0; i < 6 + level * 2; i++) {
		spawnCar();
	}
	// Spawn health pack
	if (level > 1) {
		spawnHealthPack();
	}
	// Reset player position and state
	player.x = 2048 / 2;
	player.y = 2732 - 300;
	player.exitVehicle();
	// Increase max health by 1 for each completed level, up to a reasonable cap (e.g. 100)
	if (!player.maxHealth) {
		player.maxHealth = 30;
	}
	if (level > 1) {
		player.maxHealth += 1;
		if (player.maxHealth > 100) player.maxHealth = 100;
	}
	player.health = player.maxHealth;
	updateHealthUI();
}
// --- Initialize player ---
player = new Player();
player.x = 2048 / 2;
player.y = 2732 - 300;
game.addChild(player);
// --- Start first level ---
resetLevel();
updateScoreUI();
// --- Touch/drag controls ---
function clamp(val, min, max) {
	if (val < min) {
		return min;
	}
	if (val > max) {
		return max;
	}
	return val;
}
function handleMove(x, y, obj) {
	if (!dragNode) {
		return;
	}
	// Clamp to game area, avoid top left 100x100
	var px = clamp(x, 100 + 50, 2048 - 50);
	var py = clamp(y, 100 + 50, 2732 - 50);
	// Move player smoothly
	var speed = dragNode.isInVehicle ? dragNode.vehicleSpeed : dragNode.speed;
	var dx = px - dragNode.x;
	var dy = py - dragNode.y;
	var dist = Math.sqrt(dx * dx + dy * dy);
	if (dist > speed) {
		dragNode.x += dx / dist * speed;
		dragNode.y += dy / dist * speed;
	} else {
		dragNode.x = px;
		dragNode.y = py;
	}
	lastMoveX = px;
	lastMoveY = py;
}
game.move = handleMove;
game.down = function (x, y, obj) {
	// Only allow drag if not in top left 100x100
	if (x < 100 && y < 100) {
		return;
	}
	dragNode = player;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// --- Main game update loop ---
game.update = function () {
	// Update player (invincibility, etc)
	player.update();
	// Update police
	for (var i = policeCars.length - 1; i >= 0; i--) {
		var p = policeCars[i];
		p.update();
		// Check collision with player
		if (p.intersects(player)) {
			if (!player.invincible) {
				player.takeDamage();
				updateHealthUI();
				if (player.health <= 0) {
					LK.effects.flashScreen(0x0000ff, 1000);
					LK.showGameOver();
					return;
				}
			}
		}
	}
	// Update cars (obstacles)
	for (var i = cars.length - 1; i >= 0; i--) {
		var c = cars[i];
		c.update();
		// Remove if off screen
		if (c.direction === 1 && c.x > 2048 + 200 || c.direction === -1 && c.x < -200) {
			c.destroy();
			cars.splice(i, 1);
			continue;
		}
		// Collision with player
		if (c.intersects(player)) {
			if (!player.isInVehicle && !player.invincible) {
				player.takeDamage();
				updateHealthUI();
				if (player.health <= 0) {
					LK.effects.flashScreen(0x0000ff, 1000);
					LK.showGameOver();
					return;
				}
			}
		}
		// Steal vehicle: if player is not in vehicle and collides, enter vehicle
		if (!player.isInVehicle && c.intersects(player)) {
			player.enterVehicle();
			// Remove the car
			c.destroy();
			cars.splice(i, 1);
			continue;
		}
	}
	// Update loot
	for (var i = loots.length - 1; i >= 0; i--) {
		var l = loots[i];
		if (l.intersects(player)) {
			score += 10;
			lootCollected += 1;
			updateScoreUI();
			updateObjectiveUI();
			l.destroy();
			loots.splice(i, 1);
			// Win level if all loot collected
			if (lootCollected >= heistObjective) {
				level += 1;
				LK.effects.flashScreen(0x44de83, 800);
				LK.setTimeout(function () {
					resetLevel();
				}, 900);
				return;
			}
		}
	}
	// Update health packs
	for (var i = healthPacks.length - 1; i >= 0; i--) {
		var hp = healthPacks[i];
		if (hp.intersects(player)) {
			player.heal();
			updateHealthUI();
			hp.destroy();
			healthPacks.splice(i, 1);
		}
	}
	// Player exits vehicle after a while (simulate "stolen car runs out of gas")
	if (player.isInVehicle) {
		if (!player.vehicleTimer) {
			player.vehicleTimer = 180;
		} // 3 seconds
		player.vehicleTimer--;
		if (player.vehicleTimer <= 0) {
			player.exitVehicle();
			player.vehicleTimer = null;
		}
	}
	// Spawn new cars and police at intervals
	if (LK.ticks % (90 - Math.min(level * 5, 60)) === 0) {
		spawnCar();
	}
	if (LK.ticks % (300 - Math.min(level * 10, 200)) === 0) {
		spawnPolice();
	}
	// Occasionally spawn health pack
	if (LK.ticks % 900 === 0 && healthPacks.length < 1 && player.health < 3) {
		spawnHealthPack();
	}
};