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

/**** 
* Classes
****/ 
var Building = Container.expand(function () {
	var self = Container.call(this);
	self.attachAsset('building', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var CashPickup = Container.expand(function () {
	var self = Container.call(this);
	var cashSprite = self.attachAsset('cash', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		cashSprite.rotation += 0.1;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carSprite = self.attachAsset('player_car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.maxSpeed = 8;
	self.acceleration = 0.3;
	self.friction = 0.95;
	self.turnSpeed = 0.08;
	self.health = 100;
	self.maxHealth = 100;
	self.update = function () {
		// Apply friction
		self.velocityX *= self.friction;
		self.velocityY *= self.friction;
		// Update position
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Keep player on screen with wrapping
		if (self.x < -40) self.x = 2088;
		if (self.x > 2088) self.x = -40;
		if (self.y < -60) self.y = 2792;
		if (self.y > 2792) self.y = -60;
	};
	self.steerTowards = function (targetX, targetY) {
		var dx = targetX - self.x;
		var dy = targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 20) {
			var targetAngle = Math.atan2(dy, dx);
			var currentAngle = Math.atan2(self.velocityY, self.velocityX);
			// Smooth angle interpolation
			var angleDiff = targetAngle - currentAngle;
			if (angleDiff > Math.PI) angleDiff -= 2 * Math.PI;
			if (angleDiff < -Math.PI) angleDiff += 2 * Math.PI;
			var steerAngle = currentAngle + angleDiff * self.turnSpeed;
			// Apply acceleration in steering direction
			self.velocityX += Math.cos(steerAngle) * self.acceleration;
			self.velocityY += Math.sin(steerAngle) * self.acceleration;
			// Limit speed
			var speed = Math.sqrt(self.velocityX * self.velocityX + self.velocityY * self.velocityY);
			if (speed > self.maxSpeed) {
				self.velocityX = self.velocityX / speed * self.maxSpeed;
				self.velocityY = self.velocityY / speed * self.maxSpeed;
			}
			// Update sprite rotation
			carSprite.rotation = Math.atan2(self.velocityY, self.velocityX) + Math.PI / 2;
		}
	};
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			self.health = 0;
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		} else {
			LK.effects.flashObject(self, 0xff0000, 500);
		}
	};
	return self;
});
var PoliceCar = Container.expand(function () {
	var self = Container.call(this);
	var policeSprite = self.attachAsset('police_car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.maxSpeed = 6;
	self.acceleration = 0.25;
	self.friction = 0.96;
	self.turnSpeed = 0.06;
	self.update = function () {
		// Chase player
		var dx = playerCar.x - self.x;
		var dy = playerCar.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			var targetAngle = Math.atan2(dy, dx);
			// Apply acceleration towards player
			self.velocityX += Math.cos(targetAngle) * self.acceleration;
			self.velocityY += Math.sin(targetAngle) * self.acceleration;
			// Limit speed
			var speed = Math.sqrt(self.velocityX * self.velocityX + self.velocityY * self.velocityY);
			if (speed > self.maxSpeed) {
				self.velocityX = self.velocityX / speed * self.maxSpeed;
				self.velocityY = self.velocityY / speed * self.maxSpeed;
			}
			// Update sprite rotation
			policeSprite.rotation = Math.atan2(self.velocityY, self.velocityX) + Math.PI / 2;
		}
		// Apply friction
		self.velocityX *= self.friction;
		self.velocityY *= self.friction;
		// Update position
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Remove if too far off screen
		if (self.x < -200 || self.x > 2248 || self.y < -200 || self.y > 2932) {
			self.shouldRemove = true;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x27ae60
});

/**** 
* Game Code
****/ 
// Game variables
var playerCar;
var policeCars = [];
var buildings = [];
var cashPickups = [];
var wantedLevel = 1;
var lastPoliceSpawn = 0;
var lastCashSpawn = 0;
var targetX = 1024;
var targetY = 1366;
// UI elements
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
scoreTxt.x = 150;
scoreTxt.y = 50;
LK.gui.topLeft.addChild(scoreTxt);
var healthTxt = new Text2('Health: 100', {
	size: 50,
	fill: 0xFFFFFF
});
healthTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(healthTxt);
// Initialize player
playerCar = game.addChild(new PlayerCar());
playerCar.x = 1024;
playerCar.y = 1366;
// Generate city layout
function createBuildings() {
	var buildingPositions = [{
		x: 300,
		y: 400
	}, {
		x: 600,
		y: 300
	}, {
		x: 900,
		y: 500
	}, {
		x: 1200,
		y: 350
	}, {
		x: 1500,
		y: 600
	}, {
		x: 1800,
		y: 400
	}, {
		x: 400,
		y: 800
	}, {
		x: 800,
		y: 900
	}, {
		x: 1300,
		y: 1000
	}, {
		x: 1600,
		y: 850
	}, {
		x: 200,
		y: 1200
	}, {
		x: 700,
		y: 1300
	}, {
		x: 1100,
		y: 1400
	}, {
		x: 1400,
		y: 1200
	}, {
		x: 1700,
		y: 1500
	}, {
		x: 300,
		y: 1800
	}, {
		x: 800,
		y: 1700
	}, {
		x: 1200,
		y: 1900
	}, {
		x: 1500,
		y: 1800
	}, {
		x: 500,
		y: 2100
	}, {
		x: 1000,
		y: 2200
	}, {
		x: 1400,
		y: 2000
	}, {
		x: 1800,
		y: 2100
	}];
	for (var i = 0; i < buildingPositions.length; i++) {
		var building = game.addChild(new Building());
		building.x = buildingPositions[i].x;
		building.y = buildingPositions[i].y;
		buildings.push(building);
	}
}
function spawnCash() {
	var cash = game.addChild(new CashPickup());
	cash.x = Math.random() * 1848 + 100;
	cash.y = Math.random() * 2532 + 100;
	// Make sure cash doesn't spawn inside buildings
	var validPosition = false;
	var attempts = 0;
	while (!validPosition && attempts < 10) {
		validPosition = true;
		for (var i = 0; i < buildings.length; i++) {
			if (cash.intersects(buildings[i])) {
				cash.x = Math.random() * 1848 + 100;
				cash.y = Math.random() * 2532 + 100;
				validPosition = false;
				break;
			}
		}
		attempts++;
	}
	cashPickups.push(cash);
}
function spawnPolice() {
	var police = game.addChild(new PoliceCar());
	// Spawn police at screen edges
	var side = Math.floor(Math.random() * 4);
	switch (side) {
		case 0:
			// Top
			police.x = Math.random() * 2048;
			police.y = -100;
			break;
		case 1:
			// Right
			police.x = 2148;
			police.y = Math.random() * 2732;
			break;
		case 2:
			// Bottom
			police.x = Math.random() * 2048;
			police.y = 2832;
			break;
		case 3:
			// Left
			police.x = -100;
			police.y = Math.random() * 2732;
			break;
	}
	policeCars.push(police);
}
// Initialize city
createBuildings();
// Spawn initial cash
for (var i = 0; i < 5; i++) {
	spawnCash();
}
// Touch controls
game.down = function (x, y, obj) {
	targetX = x;
	targetY = y;
};
game.move = function (x, y, obj) {
	targetX = x;
	targetY = y;
};
// Main game loop
game.update = function () {
	// Update wanted level over time
	if (LK.ticks % 1800 == 0) {
		// Every 30 seconds
		wantedLevel = Math.min(wantedLevel + 1, 5);
	}
	// Steer player car
	playerCar.steerTowards(targetX, targetY);
	// Spawn police based on wanted level
	var policeSpawnRate = Math.max(300 - wantedLevel * 50, 120);
	if (LK.ticks - lastPoliceSpawn > policeSpawnRate && policeCars.length < wantedLevel * 2) {
		spawnPolice();
		lastPoliceSpawn = LK.ticks;
	}
	// Spawn cash periodically
	if (LK.ticks - lastCashSpawn > 600 && cashPickups.length < 8) {
		spawnCash();
		lastCashSpawn = LK.ticks;
	}
	// Check collisions with buildings
	for (var i = 0; i < buildings.length; i++) {
		if (playerCar.intersects(buildings[i])) {
			// Push player away from building
			var dx = playerCar.x - buildings[i].x;
			var dy = playerCar.y - buildings[i].y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				playerCar.x = buildings[i].x + dx / distance * 130;
				playerCar.y = buildings[i].y + dy / distance * 130;
			}
			// Reduce speed and take damage
			playerCar.velocityX *= 0.3;
			playerCar.velocityY *= 0.3;
			playerCar.takeDamage(5);
			LK.getSound('crash').play();
		}
	}
	// Check collisions with cash
	for (var i = cashPickups.length - 1; i >= 0; i--) {
		var cash = cashPickups[i];
		if (playerCar.intersects(cash)) {
			LK.setScore(LK.getScore() + 100);
			scoreTxt.setText('Score: ' + LK.getScore());
			cash.destroy();
			cashPickups.splice(i, 1);
			LK.getSound('collect_cash').play();
		}
	}
	// Check collisions with police
	for (var i = policeCars.length - 1; i >= 0; i--) {
		var police = policeCars[i];
		if (police.shouldRemove) {
			police.destroy();
			policeCars.splice(i, 1);
			continue;
		}
		if (playerCar.intersects(police)) {
			// Push cars apart
			var dx = playerCar.x - police.x;
			var dy = playerCar.y - police.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				var pushForce = 5;
				playerCar.velocityX += dx / distance * pushForce;
				playerCar.velocityY += dy / distance * pushForce;
				police.velocityX -= dx / distance * pushForce;
				police.velocityY -= dy / distance * pushForce;
			}
			playerCar.takeDamage(10);
			LK.getSound('crash').play();
		}
	}
	// Update health display
	healthTxt.setText('Health: ' + Math.ceil(playerCar.health));
	// Add survival score
	if (LK.ticks % 60 == 0) {
		// Every second
		LK.setScore(LK.getScore() + 10);
		scoreTxt.setText('Score: ' + LK.getScore());
	}
};