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

/**** 
* Classes
****/ 
var EnemyCar = Container.expand(function () {
	var self = Container.call(this);
	var enemyCarGraphics = self.attachAsset('Cars', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Assign random color (excluding red)
	var enemyColors = [0x0066ff,
	// Blue
	0x00ff66,
	// Green
	0xffff00,
	// Yellow
	0xff8800,
	// Orange
	0x8800ff,
	// Purple
	0x00ffff,
	// Cyan
	0xff00ff,
	// Magenta
	0x888888,
	// Gray
	0xffffff // White
	];
	var randomColorIndex = Math.floor(Math.random() * enemyColors.length);
	enemyCarGraphics.tint = enemyColors[randomColorIndex];
	// Basic properties for enemy car (no logic yet)
	self.velocityX = 0;
	self.velocityY = 0;
	self.rotation = 0;
	// Mass property for physics calculations
	self.mass = 800 + Math.random() * 800; // Random mass between 800-1600 kg
	return self;
});
var Particle = Container.expand(function () {
	var self = Container.call(this);
	// Random particle size between 10.8-25.2 pixels (20% smaller than original)
	var particleSize = 10.8 + Math.random() * 14.4;
	var particleGraphics = self.attachAsset('ParticulasVel', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: particleSize / 30,
		scaleY: particleSize / 30
	});
	// Random initial properties (20% smaller velocities)
	self.velocityX = (Math.random() - 0.5) * 3.2;
	self.velocityY = Math.random() * 2.4 + 0.8;
	self.lifespan = 20 + Math.random() * 20; // Reduced lifespan: 0.33-0.67 seconds at 60fps
	self.age = 0;
	self.update = function () {
		// Update position
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Age particle
		self.age++;
		// Fade out over time
		var fadeProgress = self.age / self.lifespan;
		particleGraphics.alpha = 1 - fadeProgress;
		// Scale down over time
		var scaleProgress = 1 - fadeProgress * 0.5;
		particleGraphics.scaleX = particleSize / 30 * scaleProgress;
		particleGraphics.scaleY = particleSize / 30 * scaleProgress;
		// Apply gravity and air resistance (20% reduced for smaller scale)
		self.velocityY += 0.08; // Reduced gravity
		self.velocityX *= 0.984; // Slightly less air resistance
		self.velocityY *= 0.984;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Create gameplay background - 4/5 of screen height (top portion)
6;
var gameplayBackground = game.attachAsset('gameplayBg', {
	x: 0,
	y: 0,
	anchorX: 0,
	anchorY: 0
});
// Create carPlayer character on top of gameplayBackground
var carPlayer = gameplayBackground.attachAsset('CarPlayer', {
	x: 1024,
	// Center horizontally
	y: 1800,
	// Position in lower portion of gameplay area
	anchorX: 0.5,
	anchorY: 0.5
});
// Create array to track enemy cars
var enemyCars = [];
// Create 3-5 enemy cars in gameplay area
var numEnemies = 3 + Math.floor(Math.random() * 3); // Random number between 3-5
for (var e = 0; e < numEnemies; e++) {
	var enemyCar = new EnemyCar();
	// Position enemies randomly across the gameplay area
	enemyCar.x = 200 + Math.random() * 1648; // Keep within bounds (200 to 1848)
	enemyCar.y = 200 + Math.random() * 1786; // Keep within bounds (200 to 1986)
	enemyCars.push(enemyCar);
	gameplayBackground.addChild(enemyCar);
}
// Create UI background - 1/5 of screen height (bottom portion)
var uiBackground = game.attachAsset('uiBg', {
	x: 0,
	y: 2186,
	anchorX: 0,
	anchorY: 0
});
// Create speed display text
var speedText = new Text2('Speed: 0', {
	size: 60,
	fill: 0x000000
});
speedText.anchor.set(0, 0.5);
speedText.x = 50;
speedText.y = 2459; // Center vertically in UI area
game.addChild(speedText);
// Create joystickBG centered in UI background
var joystickBG = uiBackground.attachAsset('JoystickBG', {
	x: 1024,
	// Center horizontally in UI
	y: 273,
	// Center vertically in UI (546/2 = 273)
	anchorX: 0.5,
	anchorY: 0.5
});
// Create point object that will follow touch position
var point = null;
// Create JoystickPoinr that will follow point position smoothly
var joystickPoinr = game.attachAsset('JoystickPoinr', {
	x: 1024,
	y: 2459,
	anchorX: 0.5,
	anchorY: 0.5
});
// Variables for smooth movement
var targetX = 1024;
var targetY = 2459;
var smoothSpeed = 0.2;
// Variables for smooth rotation
var targetRotation = 0;
var baseRotationSpeed = 0.052;
// Variables for realistic car physics
var currentVelocity = 0;
var acceleration = 0.16;
var deceleration = 0.44;
var maxSpeed = 15.36;
// Vehicle mass properties
var playerMass = 1200; // Player car mass in kg
// Variables for drift physics
var velocityX = 0;
var velocityY = 0;
var driftFactor = 0.85; // How much momentum is retained (lower = more drift)
var gripFactor = 0.3; // How quickly car aligns with direction (lower = more drift)
// Handle touch down - create and show point
game.down = function (x, y, obj) {
	// Create point at touch position
	point = game.attachAsset('Puntero', {
		x: x,
		y: y,
		anchorX: 0.5,
		anchorY: 0.5
	});
};
// Handle touch move - update point position
game.move = function (x, y, obj) {
	if (point) {
		point.x = x;
		point.y = y;
		// Calculate joystickBG world position
		var joystickWorldX = joystickBG.x + uiBackground.x;
		var joystickWorldY = joystickBG.y + uiBackground.y;
		// Calculate distance from joystick center
		var deltaX = x - joystickWorldX;
		var deltaY = y - joystickWorldY;
		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
		var maxRadius = joystickBG.width / 2;
		// Limit movement to joystick radius
		if (distance > maxRadius) {
			var angle = Math.atan2(deltaY, deltaX);
			deltaX = Math.cos(angle) * maxRadius;
			deltaY = Math.sin(angle) * maxRadius;
		}
		// Update target position for smooth movement (constrained)
		targetX = joystickWorldX + deltaX;
		targetY = joystickWorldY + deltaY;
	}
};
// Handle touch up - remove point
game.up = function (x, y, obj) {
	if (point) {
		point.destroy();
		point = null;
		// Reset target position to joystick center
		var joystickWorldX = joystickBG.x + uiBackground.x;
		var joystickWorldY = joystickBG.y + uiBackground.y;
		targetX = joystickWorldX;
		targetY = joystickWorldY;
	}
};
// Update function for smooth movement
game.update = function () {
	// Smoothly move JoystickPoinr towards target position
	var deltaX = targetX - joystickPoinr.x;
	var deltaY = targetY - joystickPoinr.y;
	joystickPoinr.x += deltaX * smoothSpeed;
	joystickPoinr.y += deltaY * smoothSpeed;
	// Double-check that joystickPoinr stays within bounds
	var joystickWorldX = joystickBG.x + uiBackground.x;
	var joystickWorldY = joystickBG.y + uiBackground.y;
	var currentDeltaX = joystickPoinr.x - joystickWorldX;
	var currentDeltaY = joystickPoinr.y - joystickWorldY;
	var currentDistance = Math.sqrt(currentDeltaX * currentDeltaX + currentDeltaY * currentDeltaY);
	var maxRadius = joystickBG.width / 2;
	if (currentDistance > maxRadius) {
		var angle = Math.atan2(currentDeltaY, currentDeltaX);
		joystickPoinr.x = joystickWorldX + Math.cos(angle) * maxRadius;
		joystickPoinr.y = joystickWorldY + Math.sin(angle) * maxRadius;
	}
	// Update car rotation based on joystick position
	var joystickOffsetX = joystickPoinr.x - joystickWorldX;
	var joystickOffsetY = joystickPoinr.y - joystickWorldY;
	var joystickDistance = Math.sqrt(joystickOffsetX * joystickOffsetX + joystickOffsetY * joystickOffsetY);
	// Calculate power based on distance from center (0 to 1)
	var power = Math.min(joystickDistance / maxRadius, 1);
	// Only rotate if joystick is moved significantly from center
	if (joystickDistance > 10) {
		var joystickAngle = Math.atan2(joystickOffsetX, -joystickOffsetY);
		targetRotation = joystickAngle;
	}
	// Smoothly interpolate car rotation towards target
	var rotationDelta = targetRotation - carPlayer.rotation;
	// Handle angle wrapping for shortest rotation path
	while (rotationDelta > Math.PI) {
		rotationDelta -= 2 * Math.PI;
	}
	while (rotationDelta < -Math.PI) {
		rotationDelta += 2 * Math.PI;
	}
	// Calculate rotation speed based on current velocity (slower speed = much slower turning)
	var speedRatio = Math.sqrt(velocityX * velocityX + velocityY * velocityY) / maxSpeed;
	var dynamicRotationSpeed = baseRotationSpeed * Math.max(0.1, speedRatio); // Minimum 10% rotation speed
	carPlayer.rotation += rotationDelta * dynamicRotationSpeed;
	// Calculate target velocity based on joystick power
	var targetVelocity = maxSpeed * power;
	// Apply smooth velocity transitions with exponential interpolation
	if (power > 0.1) {
		// Accelerating - smooth exponential approach to target velocity
		var velocityDiff = targetVelocity - currentVelocity;
		var accelerationRate = 0.004; // Smooth acceleration rate (20% slower for smaller car)
		currentVelocity += velocityDiff * accelerationRate;
	} else {
		// Decelerating when joystick is near center - smooth exponential decay
		var decelerationRate = 0.048; // Smooth deceleration rate (20% slower for smaller car)
		currentVelocity *= 1 - decelerationRate;
		if (Math.abs(currentVelocity) < 0.1) {
			currentVelocity = 0;
		}
	}
	// Limit velocity to max speed
	currentVelocity = Math.min(currentVelocity, maxSpeed);
	// Calculate intended movement direction based on car rotation and current velocity
	var intendedMoveX = Math.sin(carPlayer.rotation) * currentVelocity;
	var intendedMoveY = -Math.cos(carPlayer.rotation) * currentVelocity;
	// Calculate turning friction based on dynamic rotation speed
	var rotationFriction = Math.abs(rotationDelta * dynamicRotationSpeed) * 0.8; // Reduced friction intensity for smoother feel
	var frictionMultiplier = Math.max(0.85, 1 - rotationFriction); // Less velocity reduction when turning (min 0.85 for more natural feel)
	// Apply drift physics - blend current momentum with intended direction
	velocityX = velocityX * driftFactor + intendedMoveX * gripFactor;
	velocityY = velocityY * driftFactor + intendedMoveY * gripFactor;
	// Apply turning friction to reduce velocity when steering
	velocityX *= frictionMultiplier;
	velocityY *= frictionMultiplier;
	// Apply some base deceleration to drift momentum
	velocityX *= 0.98;
	velocityY *= 0.98;
	// Update car position using drift momentum
	carPlayer.x += velocityX;
	carPlayer.y += velocityY;
	// Keep car within gameplay area bounds with realistic collision physics
	var halfCarWidth = 16; // CarPlayer width is 32, so half is 16
	var halfCarHeight = 24; // CarPlayer height is 47.36, so half is ~24
	// Calculate current speed for impact calculations
	var currentSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
	var impactThreshold = 2; // Minimum speed to trigger impact effects
	// Realistic collision physics with energy loss and proper angles
	if (carPlayer.x < halfCarWidth) {
		carPlayer.x = halfCarWidth;
		// Calculate impact intensity based on perpendicular velocity component
		var impactVelocity = Math.abs(velocityX);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3; // More energy loss at higher speeds
		// Realistic bounce with energy conservation
		velocityX = -velocityX * (1 - energyLoss);
		velocityY *= 0.8; // Friction reduces parallel velocity component
		// Visual feedback for significant impacts
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	if (carPlayer.x > 2048 - halfCarWidth) {
		carPlayer.x = 2048 - halfCarWidth;
		// Calculate impact intensity based on perpendicular velocity component
		var impactVelocity = Math.abs(velocityX);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3; // More energy loss at higher speeds
		// Realistic bounce with energy conservation
		velocityX = -velocityX * (1 - energyLoss);
		velocityY *= 0.8; // Friction reduces parallel velocity component
		// Visual feedback for significant impacts
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	if (carPlayer.y < halfCarHeight) {
		carPlayer.y = halfCarHeight;
		// Calculate impact intensity based on perpendicular velocity component
		var impactVelocity = Math.abs(velocityY);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3; // More energy loss at higher speeds
		// Realistic bounce with energy conservation
		velocityY = -velocityY * (1 - energyLoss);
		velocityX *= 0.8; // Friction reduces parallel velocity component
		// Visual feedback for significant impacts
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	if (carPlayer.y > 2186 - halfCarHeight) {
		carPlayer.y = 2186 - halfCarHeight;
		// Calculate impact intensity based on perpendicular velocity component
		var impactVelocity = Math.abs(velocityY);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3; // More energy loss at higher speeds
		// Realistic bounce with energy conservation
		velocityY = -velocityY * (1 - energyLoss);
		velocityX *= 0.8; // Friction reduces parallel velocity component
		// Visual feedback for significant impacts
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	// Particle system for car exhaust
	if (!game.particles) {
		game.particles = [];
	}
	// Generate particles proportional to current velocity (from very little to much)
	var totalSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
	var speedRatio = totalSpeed / maxSpeed; // 0 to 1 ratio of current speed to max speed
	// Calculate particle generation frequency based on speed (more speed = more frequent particles)
	var particleFrequency = Math.max(1, Math.floor(8 - speedRatio * 6)); // From every 8 ticks (slow) to every 2 ticks (fast)
	if (speedRatio > 0.05 && LK.ticks % particleFrequency === 0) {
		// Only generate particles when moving at least 5% of max speed
		// Calculate particle spawn position further behind the car (20% closer for smaller car)
		var particleSpawnX = carPlayer.x - Math.sin(carPlayer.rotation) * 55;
		var particleSpawnY = carPlayer.y + Math.cos(carPlayer.rotation) * 55;
		// Create particles based on speed - more speed = more particles
		var particleCount = Math.max(1, Math.floor(speedRatio * 3)); // 1-3 particles based on speed ratio
		for (var p = 0; p < particleCount; p++) {
			// Create new particle
			var newParticle = new Particle();
			newParticle.x = particleSpawnX + (Math.random() - 0.5) * 19.2; // 20% smaller spawn area
			newParticle.y = particleSpawnY + (Math.random() - 0.5) * 19.2;
			// Add velocity variation based on car movement (20% reduced for smaller scale)
			newParticle.velocityX += -velocityX * 0.12 + (Math.random() - 0.5) * 2.4;
			newParticle.velocityY += -velocityY * 0.12 + (Math.random() - 0.5) * 2.4;
			game.particles.push(newParticle);
			gameplayBackground.addChild(newParticle);
			// Tween particle color for variety
			var colors = [0xffffff, 0xcccccc, 0x999999, 0x666666];
			var randomColor = colors[Math.floor(Math.random() * colors.length)];
			tween(newParticle.children[0], {
				tint: randomColor
			}, {
				duration: 100
			});
		}
	}
	// Update and clean up particles
	for (var i = game.particles.length - 1; i >= 0; i--) {
		var particle = game.particles[i];
		if (particle.age >= particle.lifespan) {
			particle.destroy();
			game.particles.splice(i, 1);
		}
	}
	// Check collision between player car and all enemy cars
	if (!carPlayer.lastColliding) carPlayer.lastColliding = [];
	var anyCollision = false;
	for (var ec = 0; ec < enemyCars.length; ec++) {
		var enemyCar = enemyCars[ec];
		if (!carPlayer.lastColliding[ec]) carPlayer.lastColliding[ec] = false;
		// Precise collision detection using actual car dimensions
		var playerHalfWidth = 32; // CarPlayer actual half width
		var playerHalfHeight = 47; // CarPlayer actual half height  
		var enemyHalfWidth = 32; // Enemy car actual half width
		var enemyHalfHeight = 47; // Enemy car actual half height
		// Calculate actual distance between car centers
		var deltaX = carPlayer.x - enemyCar.x;
		var deltaY = carPlayer.y - enemyCar.y;
		var actualDistance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
		// Minimum separation distance based on actual car sizes
		var minDistance = Math.sqrt((playerHalfWidth + enemyHalfWidth) * (playerHalfWidth + enemyHalfWidth) + (playerHalfHeight + enemyHalfHeight) * (playerHalfHeight + enemyHalfHeight)) * 0.8;
		var currentColliding = actualDistance < minDistance;
		if (!carPlayer.lastColliding[ec] && currentColliding) {
			// Collision just started - calculate collision physics
			var carSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
			// Calculate collision direction (from enemy car to player car)
			var collisionDeltaX = carPlayer.x - enemyCar.x;
			var collisionDeltaY = carPlayer.y - enemyCar.y;
			var collisionDistance = Math.sqrt(collisionDeltaX * collisionDeltaX + collisionDeltaY * collisionDeltaY);
			// Normalize collision direction
			if (collisionDistance > 0) {
				collisionDeltaX /= collisionDistance;
				collisionDeltaY /= collisionDistance;
			}
			// Calculate player car facing direction
			var playerFacingX = Math.sin(carPlayer.rotation);
			var playerFacingY = -Math.cos(carPlayer.rotation);
			// Calculate how much player velocity aligns with their facing direction
			var velocityMagnitude = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
			var facingDotVelocity = 0;
			if (velocityMagnitude > 0) {
				// Normalize velocity vector
				var normalizedVelX = velocityX / velocityMagnitude;
				var normalizedVelY = velocityY / velocityMagnitude;
				// Calculate dot product to see if moving forward or backward
				facingDotVelocity = playerFacingX * normalizedVelX + playerFacingY * normalizedVelY;
			}
			// Calculate momentum transfer based on player's facing direction, velocity alignment, and speed
			var baseTransferRatio = 0.6; // Base amount of velocity to transfer
			var directionBonus = Math.max(0, facingDotVelocity) * 0.4; // Bonus for moving forward
			var speedRatio = Math.min(velocityMagnitude / maxSpeed, 1);
			var speedBonus = speedRatio * 0.3 + speedRatio * speedRatio * 0.7; // Quadratic scaling: up to 100% more transfer at max speed
			var totalTransferRatio = baseTransferRatio + directionBonus + speedBonus;
			// Calculate mass-based momentum transfer
			var massRatio = playerMass / (playerMass + enemyCar.mass);
			var transferMultiplier = totalTransferRatio * massRatio;
			// Transfer velocity from player to enemy car based on facing direction
			var transferVelocityX = velocityX * transferMultiplier;
			var transferVelocityY = velocityY * transferMultiplier;
			// Apply transferred velocity to enemy car
			enemyCar.velocityX += transferVelocityX;
			enemyCar.velocityY += transferVelocityY;
			// Calculate collision damage based on impact velocity with quadratic scaling for higher speeds
			var impactVelocity = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
			var speedRatio = impactVelocity / maxSpeed;
			var velocityLossRatio = Math.min(0.6, speedRatio * 0.2 + speedRatio * speedRatio * 0.4); // Up to 60% velocity loss, quadratic scaling
			var accelerationLossRatio = Math.min(0.5, speedRatio * 0.15 + speedRatio * speedRatio * 0.35); // Up to 50% acceleration loss, quadratic scaling
			// Reduce player velocity by transferred amount plus collision damage
			var totalVelocityLoss = 0.8 + velocityLossRatio;
			velocityX -= transferVelocityX * totalVelocityLoss;
			velocityY -= transferVelocityY * totalVelocityLoss;
			// Reduce maximum speed and acceleration temporarily based on impact
			maxSpeed *= 1 - velocityLossRatio;
			acceleration *= 1 - accelerationLossRatio;
			// Add collision bounce based on collision normal
			var bounceStrength = carSpeed * 0.3;
			var playerBounceX = -collisionDeltaX * bounceStrength * (enemyCar.mass / (playerMass + enemyCar.mass));
			var playerBounceY = -collisionDeltaY * bounceStrength * (enemyCar.mass / (playerMass + enemyCar.mass));
			var enemyBounceX = collisionDeltaX * bounceStrength * (playerMass / (playerMass + enemyCar.mass));
			var enemyBounceY = collisionDeltaY * bounceStrength * (playerMass / (playerMass + enemyCar.mass));
			// Apply bounce velocities
			velocityX += playerBounceX;
			velocityY += playerBounceY;
			enemyCar.velocityX += enemyBounceX;
			enemyCar.velocityY += enemyBounceY;
			// Separate cars to prevent overlap with precise calculations
			var exactOverlap = minDistance - actualDistance;
			// Only separate if cars are actually overlapping
			if (exactOverlap > 0) {
				// Normalize separation direction
				var normalX = deltaX / actualDistance;
				var normalY = deltaY / actualDistance;
				// Calculate separation based on exact overlap with smooth correction
				var separationAmount = exactOverlap * 0.6; // More responsive separation
				var totalMass = playerMass + enemyCar.mass;
				var playerSeparation = separationAmount * (enemyCar.mass / totalMass);
				var enemySeparation = separationAmount * (playerMass / totalMass);
				// Apply separation in normalized direction
				carPlayer.x += normalX * playerSeparation;
				carPlayer.y += normalY * playerSeparation;
				enemyCar.x -= normalX * enemySeparation;
				enemyCar.y -= normalY * enemySeparation;
			}
			// Visual feedback for collision
			LK.effects.flashObject(carPlayer, 0xff0000, 500);
			// Play collision sound
			var collisionSounds = ['SonidoChoque', 'SonidoChoque2', 'SonidoChoque3'];
			var randomSound = collisionSounds[Math.floor(Math.random() * collisionSounds.length)];
			LK.getSound(randomSound).play();
			anyCollision = true;
		}
		// Continuous separation while still colliding
		if (currentColliding) {
			// Use already calculated precise values from collision detection
			var exactOverlap = minDistance - actualDistance;
			// Apply continuous separation only if still overlapping
			if (exactOverlap > 0) {
				// Normalize separation direction
				var normalX = deltaX / actualDistance;
				var normalY = deltaY / actualDistance;
				// Apply gentle continuous separation
				var separationAmount = exactOverlap * 0.4;
				// Move both cars apart based on mass ratio
				var totalMass = playerMass + enemyCar.mass;
				var playerSeparation = separationAmount * (enemyCar.mass / totalMass);
				var enemySeparation = separationAmount * (playerMass / totalMass);
				// Apply separation in normalized direction
				carPlayer.x += normalX * playerSeparation;
				carPlayer.y += normalY * playerSeparation;
				enemyCar.x -= normalX * enemySeparation;
				enemyCar.y -= normalY * enemySeparation;
			}
		}
		// Update last collision state for this enemy
		carPlayer.lastColliding[ec] = currentColliding;
		if (currentColliding) anyCollision = true;
	}
	// Check enemy-to-enemy collisions
	if (!game.enemyLastColliding) game.enemyLastColliding = [];
	for (var ec1 = 0; ec1 < enemyCars.length; ec1++) {
		if (!game.enemyLastColliding[ec1]) game.enemyLastColliding[ec1] = [];
		var enemy1 = enemyCars[ec1];
		for (var ec2 = ec1 + 1; ec2 < enemyCars.length; ec2++) {
			if (!game.enemyLastColliding[ec1][ec2]) game.enemyLastColliding[ec1][ec2] = false;
			var enemy2 = enemyCars[ec2];
			// Precise collision detection for enemy-enemy collisions
			var enemy1HalfWidth = 32;
			var enemy1HalfHeight = 47;
			var enemy2HalfWidth = 32;
			var enemy2HalfHeight = 47;
			// Calculate actual distance between enemy car centers
			var enemyDeltaX = enemy1.x - enemy2.x;
			var enemyDeltaY = enemy1.y - enemy2.y;
			var enemyActualDistance = Math.sqrt(enemyDeltaX * enemyDeltaX + enemyDeltaY * enemyDeltaY);
			// Minimum separation distance for enemy cars
			var enemyMinDistance = Math.sqrt((enemy1HalfWidth + enemy2HalfWidth) * (enemy1HalfWidth + enemy2HalfWidth) + (enemy1HalfHeight + enemy2HalfHeight) * (enemy1HalfHeight + enemy2HalfHeight)) * 0.8;
			var currentColliding = enemyActualDistance < enemyMinDistance;
			if (!game.enemyLastColliding[ec1][ec2] && currentColliding) {
				// Collision just started - calculate collision physics
				var enemy1Speed = Math.sqrt(enemy1.velocityX * enemy1.velocityX + enemy1.velocityY * enemy1.velocityY);
				var enemy2Speed = Math.sqrt(enemy2.velocityX * enemy2.velocityX + enemy2.velocityY * enemy2.velocityY);
				// Calculate collision direction (from enemy2 to enemy1)
				var collisionDeltaX = enemy1.x - enemy2.x;
				var collisionDeltaY = enemy1.y - enemy2.y;
				var collisionDistance = Math.sqrt(collisionDeltaX * collisionDeltaX + collisionDeltaY * collisionDeltaY);
				// Normalize collision direction
				if (collisionDistance > 0) {
					collisionDeltaX /= collisionDistance;
					collisionDeltaY /= collisionDistance;
				}
				// Calculate momentum transfer based on mass and velocity
				var totalMass = enemy1.mass + enemy2.mass;
				var enemy1MomentumX = enemy1.velocityX * enemy1.mass;
				var enemy1MomentumY = enemy1.velocityY * enemy1.mass;
				var enemy2MomentumX = enemy2.velocityX * enemy2.mass;
				var enemy2MomentumY = enemy2.velocityY * enemy2.mass;
				// Apply conservation of momentum with energy loss
				var energyLoss = 0.3; // Energy lost in collision
				var restitution = 1 - energyLoss;
				// Calculate new velocities after collision
				var newEnemy1VelX = ((enemy1.mass - enemy2.mass) * enemy1.velocityX + 2 * enemy2.mass * enemy2.velocityX) / totalMass * restitution;
				var newEnemy1VelY = ((enemy1.mass - enemy2.mass) * enemy1.velocityY + 2 * enemy2.mass * enemy2.velocityY) / totalMass * restitution;
				var newEnemy2VelX = ((enemy2.mass - enemy1.mass) * enemy2.velocityX + 2 * enemy1.mass * enemy1.velocityX) / totalMass * restitution;
				var newEnemy2VelY = ((enemy2.mass - enemy1.mass) * enemy2.velocityY + 2 * enemy1.mass * enemy1.velocityY) / totalMass * restitution;
				// Calculate collision damage for both enemy cars with quadratic scaling
				var enemy1ImpactVelocity = Math.sqrt(enemy1.velocityX * enemy1.velocityX + enemy1.velocityY * enemy1.velocityY);
				var enemy2ImpactVelocity = Math.sqrt(enemy2.velocityX * enemy2.velocityX + enemy2.velocityY * enemy2.velocityY);
				var enemy1SpeedRatio = enemy1ImpactVelocity / 15; // Assuming enemy max speed of 15
				var enemy2SpeedRatio = enemy2ImpactVelocity / 15;
				var enemy1VelocityLoss = Math.min(0.5, enemy1SpeedRatio * 0.15 + enemy1SpeedRatio * enemy1SpeedRatio * 0.35); // Up to 50% loss with quadratic scaling
				var enemy2VelocityLoss = Math.min(0.5, enemy2SpeedRatio * 0.15 + enemy2SpeedRatio * enemy2SpeedRatio * 0.35);
				// Apply new velocities with collision damage
				enemy1.velocityX = newEnemy1VelX * (1 - enemy1VelocityLoss);
				enemy1.velocityY = newEnemy1VelY * (1 - enemy1VelocityLoss);
				enemy2.velocityX = newEnemy2VelX * (1 - enemy2VelocityLoss);
				enemy2.velocityY = newEnemy2VelY * (1 - enemy2VelocityLoss);
				// Separate enemy cars with precise overlap calculations
				var enemyExactOverlap = enemyMinDistance - enemyActualDistance;
				// Only separate if cars are actually overlapping
				if (enemyExactOverlap > 0) {
					// Normalize separation direction
					var enemyNormalX = enemyDeltaX / enemyActualDistance;
					var enemyNormalY = enemyDeltaY / enemyActualDistance;
					// Calculate precise separation
					var separationAmount = enemyExactOverlap * 0.6;
					var totalMass = enemy1.mass + enemy2.mass;
					var enemy1Separation = separationAmount * (enemy2.mass / totalMass);
					var enemy2Separation = separationAmount * (enemy1.mass / totalMass);
					// Apply separation in normalized direction
					enemy1.x += enemyNormalX * enemy1Separation;
					enemy1.y += enemyNormalY * enemy1Separation;
					enemy2.x -= enemyNormalX * enemy2Separation;
					enemy2.y -= enemyNormalY * enemy2Separation;
				}
				// Visual feedback for collision
				LK.effects.flashObject(enemy1, 0xffff00, 300);
				LK.effects.flashObject(enemy2, 0xffff00, 300);
				// Play collision sound
				var collisionSounds = ['SonidoChoque', 'SonidoChoque2', 'SonidoChoque3'];
				var randomSound = collisionSounds[Math.floor(Math.random() * collisionSounds.length)];
				LK.getSound(randomSound).play();
			}
			// Continuous separation while still colliding
			if (currentColliding) {
				// Use already calculated precise values
				var enemyExactOverlap = enemyMinDistance - enemyActualDistance;
				// Apply continuous separation only if still overlapping
				if (enemyExactOverlap > 0) {
					// Normalize separation direction
					var enemyNormalX = enemyDeltaX / enemyActualDistance;
					var enemyNormalY = enemyDeltaY / enemyActualDistance;
					// Apply gentle continuous separation
					var separationAmount = enemyExactOverlap * 0.4;
					// Move both cars apart based on mass ratio
					var totalMass = enemy1.mass + enemy2.mass;
					var enemy1Separation = separationAmount * (enemy2.mass / totalMass);
					var enemy2Separation = separationAmount * (enemy1.mass / totalMass);
					// Apply separation in normalized direction
					enemy1.x += enemyNormalX * enemy1Separation;
					enemy1.y += enemyNormalY * enemy1Separation;
					enemy2.x -= enemyNormalX * enemy2Separation;
					enemy2.y -= enemyNormalY * enemy2Separation;
				}
			}
			// Update last collision state for this enemy pair
			game.enemyLastColliding[ec1][ec2] = currentColliding;
		}
	}
	// Update all enemy cars with AI movement system
	for (var ec = 0; ec < enemyCars.length; ec++) {
		var enemyCar = enemyCars[ec];
		// Initialize AI movement properties if not set
		if (enemyCar.aiCurrentVelocity === undefined) enemyCar.aiCurrentVelocity = 0;
		if (enemyCar.aiTargetRotation === undefined) enemyCar.aiTargetRotation = 0;
		if (enemyCar.aiMaxSpeed === undefined) enemyCar.aiMaxSpeed = 12; // Slightly slower than player
		if (enemyCar.aiAcceleration === undefined) enemyCar.aiAcceleration = 0.14; // Slightly less acceleration
		if (enemyCar.aiBaseRotationSpeed === undefined) enemyCar.aiBaseRotationSpeed = 0.045; // Slightly slower turning
		if (enemyCar.aiDriftFactor === undefined) enemyCar.aiDriftFactor = 0.88; // Slightly less drift
		if (enemyCar.aiGripFactor === undefined) enemyCar.aiGripFactor = 0.25; // Slightly less grip
		if (enemyCar.aiDriftVelocityX === undefined) enemyCar.aiDriftVelocityX = 0;
		if (enemyCar.aiDriftVelocityY === undefined) enemyCar.aiDriftVelocityY = 0;
		// Initialize AI behavior system
		if (enemyCar.aiBehaviorMode === undefined) enemyCar.aiBehaviorMode = Math.floor(Math.random() * 4); // 0: Hunter, 1: Patrol, 2: Circler, 3: Ambusher
		if (enemyCar.aiBehaviorTimer === undefined) enemyCar.aiBehaviorTimer = 0;
		if (enemyCar.aiBehaviorSwitchTime === undefined) enemyCar.aiBehaviorSwitchTime = 180 + Math.random() * 240; // Switch every 3-7 seconds
		if (enemyCar.aiPatrolTarget === undefined) enemyCar.aiPatrolTarget = {
			x: Math.random() * 2048,
			y: Math.random() * 2186
		};
		if (enemyCar.aiCircleCenter === undefined) enemyCar.aiCircleCenter = {
			x: carPlayer.x,
			y: carPlayer.y
		};
		if (enemyCar.aiCircleRadius === undefined) enemyCar.aiCircleRadius = 200 + Math.random() * 300;
		if (enemyCar.aiCircleAngle === undefined) enemyCar.aiCircleAngle = Math.random() * Math.PI * 2;
		if (enemyCar.aiAmbushPoint === undefined) enemyCar.aiAmbushPoint = null;
		if (enemyCar.aiPersonality === undefined) {
			// Each enemy gets a unique personality that affects behavior
			enemyCar.aiPersonality = {
				aggressiveness: 0.3 + Math.random() * 0.7,
				// 0.3-1.0
				unpredictability: 0.2 + Math.random() * 0.6,
				// 0.2-0.8
				patience: 0.1 + Math.random() * 0.9,
				// 0.1-1.0
				roamDistance: 100 + Math.random() * 400 // 100-500 pixel roaming range
			};
		}
		// Update behavior timer
		enemyCar.aiBehaviorTimer++;
		// Switch behavior modes based on personality and timer
		if (enemyCar.aiBehaviorTimer >= enemyCar.aiBehaviorSwitchTime) {
			enemyCar.aiBehaviorTimer = 0;
			enemyCar.aiBehaviorSwitchTime = Math.floor((120 + Math.random() * 360) * enemyCar.aiPersonality.patience); // 2-8 seconds based on patience
			// Choose new behavior with personality influence
			var behaviorRandom = Math.random();
			if (enemyCar.aiPersonality.aggressiveness > 0.7 && behaviorRandom < 0.4) {
				enemyCar.aiBehaviorMode = 0; // Hunter - aggressive enemies prefer hunting
			} else if (enemyCar.aiPersonality.unpredictability > 0.6 && behaviorRandom < 0.3) {
				enemyCar.aiBehaviorMode = Math.floor(Math.random() * 4); // Random behavior for unpredictable enemies
			} else {
				// Normal behavior distribution
				enemyCar.aiBehaviorMode = Math.floor(Math.random() * 4);
			}
			// Reset behavior-specific variables
			enemyCar.aiPatrolTarget = {
				x: Math.random() * 1900 + 74,
				y: Math.random() * 2000 + 93
			};
			enemyCar.aiCircleCenter = {
				x: carPlayer.x,
				y: carPlayer.y
			};
			enemyCar.aiCircleRadius = 200 + Math.random() * 300;
			enemyCar.aiAmbushPoint = null;
		}
		// Calculate player's current speed and velocity direction
		var playerSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
		var playerVelX = velocityX;
		var playerVelY = velocityY;
		// Calculate distance to player
		var deltaToPlayer = {
			x: carPlayer.x - enemyCar.x,
			y: carPlayer.y - enemyCar.y
		};
		var distanceToPlayer = Math.sqrt(deltaToPlayer.x * deltaToPlayer.x + deltaToPlayer.y * deltaToPlayer.y);
		// Determine target based on behavior mode
		var targetX = carPlayer.x;
		var targetY = carPlayer.y;
		var aiPower = 0.5; // Default power
		var desiredAngle = 0;
		// Behavior Mode Logic
		if (enemyCar.aiBehaviorMode === 0) {
			// Hunter Mode - Direct aggressive pursuit with prediction
			var predictionTime = 0;
			if (playerSpeed > 0.5) {
				var enemySpeed = Math.sqrt(enemyCar.aiDriftVelocityX * enemyCar.aiDriftVelocityX + enemyCar.aiDriftVelocityY * enemyCar.aiDriftVelocityY);
				var averageSpeed = Math.max(1, (enemySpeed + enemyCar.aiMaxSpeed) / 2);
				predictionTime = distanceToPlayer / averageSpeed * enemyCar.aiPersonality.aggressiveness; // More aggressive = more prediction
				predictionTime = Math.min(predictionTime, 100);
			}
			targetX = carPlayer.x + playerVelX * predictionTime;
			targetY = carPlayer.y + playerVelY * predictionTime;
			aiPower = 0.7 + enemyCar.aiPersonality.aggressiveness * 0.3; // 0.7-1.0 power
		} else if (enemyCar.aiBehaviorMode === 1) {
			// Patrol Mode - Move between random points, occasionally chase player
			var deltaToPatrol = {
				x: enemyCar.aiPatrolTarget.x - enemyCar.x,
				y: enemyCar.aiPatrolTarget.y - enemyCar.y
			};
			var distanceToPatrol = Math.sqrt(deltaToPatrol.x * deltaToPatrol.x + deltaToPatrol.y * deltaToPatrol.y);
			if (distanceToPatrol < 80 || distanceToPlayer < 300 && Math.random() < 0.02) {
				// Reached patrol point or spotted player nearby - choose new target
				if (distanceToPlayer < 300 && Math.random() < enemyCar.aiPersonality.aggressiveness) {
					// Chase player
					targetX = carPlayer.x + (Math.random() - 0.5) * 200;
					targetY = carPlayer.y + (Math.random() - 0.5) * 200;
					aiPower = 0.8;
				} else {
					// New patrol point
					enemyCar.aiPatrolTarget.x = Math.random() * 1900 + 74;
					enemyCar.aiPatrolTarget.y = Math.random() * 2000 + 93;
					targetX = enemyCar.aiPatrolTarget.x;
					targetY = enemyCar.aiPatrolTarget.y;
					aiPower = 0.4 + Math.random() * 0.3;
				}
			} else {
				targetX = enemyCar.aiPatrolTarget.x;
				targetY = enemyCar.aiPatrolTarget.y;
				aiPower = 0.4 + Math.random() * 0.3;
			}
		} else if (enemyCar.aiBehaviorMode === 2) {
			// Circler Mode - Circle around player at varying distances
			enemyCar.aiCircleAngle += (0.02 + Math.random() * 0.03) * (Math.random() < 0.5 ? 1 : -1); // Vary circle speed and direction
			var radiusVariation = Math.sin(LK.ticks * 0.05 + ec) * 100; // Sine wave radius variation
			var currentRadius = enemyCar.aiCircleRadius + radiusVariation;
			// Update circle center to follow player loosely
			var centerFollowSpeed = 0.05 + enemyCar.aiPersonality.aggressiveness * 0.05;
			enemyCar.aiCircleCenter.x += (carPlayer.x - enemyCar.aiCircleCenter.x) * centerFollowSpeed;
			enemyCar.aiCircleCenter.y += (carPlayer.y - enemyCar.aiCircleCenter.y) * centerFollowSpeed;
			targetX = enemyCar.aiCircleCenter.x + Math.cos(enemyCar.aiCircleAngle) * currentRadius;
			targetY = enemyCar.aiCircleCenter.y + Math.sin(enemyCar.aiCircleAngle) * currentRadius;
			// Keep target in bounds
			targetX = Math.max(74, Math.min(1974, targetX));
			targetY = Math.max(93, Math.min(2093, targetY));
			aiPower = 0.6 + Math.sin(LK.ticks * 0.03 + ec) * 0.2; // Varying power
			// Occasionally break circle to attack
			if (distanceToPlayer < 250 && Math.random() < 0.01 * enemyCar.aiPersonality.aggressiveness) {
				targetX = carPlayer.x;
				targetY = carPlayer.y;
				aiPower = 0.9;
			}
		} else if (enemyCar.aiBehaviorMode === 3) {
			// Ambusher Mode - Set up ambush points based on player movement
			if (!enemyCar.aiAmbushPoint) {
				// Calculate ambush position ahead of player
				var ambushDistance = 400 + Math.random() * 300;
				var playerDirection = Math.atan2(playerVelY, playerVelX);
				var ambushAngle = playerDirection + (Math.random() - 0.5) * 1.5; // Vary angle
				enemyCar.aiAmbushPoint = {
					x: carPlayer.x + Math.cos(ambushAngle) * ambushDistance,
					y: carPlayer.y + Math.sin(ambushAngle) * ambushDistance
				};
				// Keep ambush point in bounds
				enemyCar.aiAmbushPoint.x = Math.max(74, Math.min(1974, enemyCar.aiAmbushPoint.x));
				enemyCar.aiAmbushPoint.y = Math.max(93, Math.min(2093, enemyCar.aiAmbushPoint.y));
			}
			var deltaToAmbush = {
				x: enemyCar.aiAmbushPoint.x - enemyCar.x,
				y: enemyCar.aiAmbushPoint.y - enemyCar.y
			};
			var distanceToAmbush = Math.sqrt(deltaToAmbush.x * deltaToAmbush.x + deltaToAmbush.y * deltaToAmbush.y);
			if (distanceToAmbush < 100) {
				// Reached ambush point - wait or strike
				if (distanceToPlayer < 350) {
					// Strike!
					targetX = carPlayer.x;
					targetY = carPlayer.y;
					aiPower = 1.0;
				} else {
					// Wait at ambush point with minimal movement
					targetX = enemyCar.aiAmbushPoint.x + (Math.random() - 0.5) * 60;
					targetY = enemyCar.aiAmbushPoint.y + (Math.random() - 0.5) * 60;
					aiPower = 0.2;
				}
			} else {
				// Move to ambush point
				targetX = enemyCar.aiAmbushPoint.x;
				targetY = enemyCar.aiAmbushPoint.y;
				aiPower = 0.7;
			}
		}
		// Add unpredictability variations
		if (Math.random() < enemyCar.aiPersonality.unpredictability * 0.05) {
			// Random direction change
			var randomAngle = Math.random() * Math.PI * 2;
			var randomDistance = 100 + Math.random() * 200;
			targetX += Math.cos(randomAngle) * randomDistance;
			targetY += Math.sin(randomAngle) * randomDistance;
			targetX = Math.max(74, Math.min(1974, targetX));
			targetY = Math.max(93, Math.min(2093, targetY));
		}
		// Calculate direction to target
		var deltaToTarget = {
			x: targetX - enemyCar.x,
			y: targetY - enemyCar.y
		};
		var distanceToTarget = Math.sqrt(deltaToTarget.x * deltaToTarget.x + deltaToTarget.y * deltaToTarget.y);
		// Calculate desired angle to face target
		desiredAngle = Math.atan2(deltaToTarget.x, -deltaToTarget.y);
		// Apply personality-based power modifications
		aiPower = Math.min(1.0, aiPower * (0.5 + enemyCar.aiPersonality.aggressiveness * 0.5));
		// Reduce power when very close to avoid overshooting (except in hunter mode)
		if (distanceToTarget < 60 && enemyCar.aiBehaviorMode !== 0) {
			aiPower *= 0.5;
		}
		// Update AI target rotation to face intercept target
		enemyCar.aiTargetRotation = desiredAngle;
		// Apply same rotation logic as player
		var rotationDelta = enemyCar.aiTargetRotation - enemyCar.rotation;
		// Handle angle wrapping for shortest rotation path
		while (rotationDelta > Math.PI) {
			rotationDelta -= 2 * Math.PI;
		}
		while (rotationDelta < -Math.PI) {
			rotationDelta += 2 * Math.PI;
		}
		// Calculate rotation speed based on current velocity (same as player logic)
		var aiSpeedRatio = Math.sqrt(enemyCar.aiDriftVelocityX * enemyCar.aiDriftVelocityX + enemyCar.aiDriftVelocityY * enemyCar.aiDriftVelocityY) / enemyCar.aiMaxSpeed;
		var aiDynamicRotationSpeed = enemyCar.aiBaseRotationSpeed * Math.max(0.1, aiSpeedRatio);
		enemyCar.rotation += rotationDelta * aiDynamicRotationSpeed;
		// Calculate target velocity based on AI power
		var aiTargetVelocity = enemyCar.aiMaxSpeed * aiPower;
		// Apply smooth velocity transitions (same as player logic)
		if (aiPower > 0.1) {
			// Accelerating
			var velocityDiff = aiTargetVelocity - enemyCar.aiCurrentVelocity;
			var accelerationRate = 0.004;
			enemyCar.aiCurrentVelocity += velocityDiff * accelerationRate;
		} else {
			// Decelerating
			var decelerationRate = 0.048;
			enemyCar.aiCurrentVelocity *= 1 - decelerationRate;
			if (Math.abs(enemyCar.aiCurrentVelocity) < 0.1) {
				enemyCar.aiCurrentVelocity = 0;
			}
		}
		// Limit velocity to max speed
		enemyCar.aiCurrentVelocity = Math.min(enemyCar.aiCurrentVelocity, enemyCar.aiMaxSpeed);
		// Calculate intended movement direction based on rotation and velocity
		var intendedMoveX = Math.sin(enemyCar.rotation) * enemyCar.aiCurrentVelocity;
		var intendedMoveY = -Math.cos(enemyCar.rotation) * enemyCar.aiCurrentVelocity;
		// Calculate turning friction (same as player logic)
		var rotationFriction = Math.abs(rotationDelta * aiDynamicRotationSpeed) * 0.8;
		var frictionMultiplier = Math.max(0.85, 1 - rotationFriction);
		// Apply drift physics (same as player logic)
		enemyCar.aiDriftVelocityX = enemyCar.aiDriftVelocityX * enemyCar.aiDriftFactor + intendedMoveX * enemyCar.aiGripFactor;
		enemyCar.aiDriftVelocityY = enemyCar.aiDriftVelocityY * enemyCar.aiDriftFactor + intendedMoveY * enemyCar.aiGripFactor;
		// Apply turning friction
		enemyCar.aiDriftVelocityX *= frictionMultiplier;
		enemyCar.aiDriftVelocityY *= frictionMultiplier;
		// Apply base deceleration
		enemyCar.aiDriftVelocityX *= 0.98;
		enemyCar.aiDriftVelocityY *= 0.98;
		// Update enemy car position using AI drift momentum
		enemyCar.x += enemyCar.aiDriftVelocityX;
		enemyCar.y += enemyCar.aiDriftVelocityY;
		// Also apply the original momentum from collisions
		enemyCar.x += enemyCar.velocityX;
		enemyCar.y += enemyCar.velocityY;
		// Apply friction to collision momentum
		enemyCar.velocityX *= 0.95;
		enemyCar.velocityY *= 0.95;
		// Keep enemy car within bounds with same physics as player
		var enemyHalfWidth = 32;
		var enemyHalfHeight = 47;
		var enemyCurrentSpeed = Math.sqrt(enemyCar.aiDriftVelocityX * enemyCar.aiDriftVelocityX + enemyCar.aiDriftVelocityY * enemyCar.aiDriftVelocityY);
		var impactThreshold = 2;
		if (enemyCar.x < enemyHalfWidth) {
			enemyCar.x = enemyHalfWidth;
			var impactVelocity = Math.abs(enemyCar.aiDriftVelocityX);
			var energyLoss = 0.4 + impactVelocity / enemyCar.aiMaxSpeed * 0.3;
			enemyCar.aiDriftVelocityX = -enemyCar.aiDriftVelocityX * (1 - energyLoss);
			enemyCar.aiDriftVelocityY *= 0.8;
			enemyCar.velocityX = -enemyCar.velocityX * 0.6;
		}
		if (enemyCar.x > 2048 - enemyHalfWidth) {
			enemyCar.x = 2048 - enemyHalfWidth;
			var impactVelocity = Math.abs(enemyCar.aiDriftVelocityX);
			var energyLoss = 0.4 + impactVelocity / enemyCar.aiMaxSpeed * 0.3;
			enemyCar.aiDriftVelocityX = -enemyCar.aiDriftVelocityX * (1 - energyLoss);
			enemyCar.aiDriftVelocityY *= 0.8;
			enemyCar.velocityX = -enemyCar.velocityX * 0.6;
		}
		if (enemyCar.y < enemyHalfHeight) {
			enemyCar.y = enemyHalfHeight;
			var impactVelocity = Math.abs(enemyCar.aiDriftVelocityY);
			var energyLoss = 0.4 + impactVelocity / enemyCar.aiMaxSpeed * 0.3;
			enemyCar.aiDriftVelocityY = -enemyCar.aiDriftVelocityY * (1 - energyLoss);
			enemyCar.aiDriftVelocityX *= 0.8;
			enemyCar.velocityY = -enemyCar.velocityY * 0.6;
		}
		if (enemyCar.y > 2186 - enemyHalfHeight) {
			enemyCar.y = 2186 - enemyHalfHeight;
			var impactVelocity = Math.abs(enemyCar.aiDriftVelocityY);
			var energyLoss = 0.4 + impactVelocity / enemyCar.aiMaxSpeed * 0.3;
			enemyCar.aiDriftVelocityY = -enemyCar.aiDriftVelocityY * (1 - energyLoss);
			enemyCar.aiDriftVelocityX *= 0.8;
			enemyCar.velocityY = -enemyCar.velocityY * 0.6;
		}
	}
	// Gradual recovery of maximum speed and acceleration (damage healing over time)
	var recoveryRate = 0.005; // 0.5% recovery per frame (about 3 seconds for full recovery at 60fps)
	if (maxSpeed < 15.36) {
		maxSpeed = Math.min(15.36, maxSpeed + recoveryRate * 15.36);
	}
	if (acceleration < 0.16) {
		acceleration = Math.min(0.16, acceleration + recoveryRate * 0.16);
	}
	// Update speed display
	speedText.setText('Speed: ' + Math.round(totalSpeed));
};

===================================================================
--- original.js
+++ change.js
@@ -653,63 +653,202 @@
 		if (enemyCar.aiDriftFactor === undefined) enemyCar.aiDriftFactor = 0.88; // Slightly less drift
 		if (enemyCar.aiGripFactor === undefined) enemyCar.aiGripFactor = 0.25; // Slightly less grip
 		if (enemyCar.aiDriftVelocityX === undefined) enemyCar.aiDriftVelocityX = 0;
 		if (enemyCar.aiDriftVelocityY === undefined) enemyCar.aiDriftVelocityY = 0;
+		// Initialize AI behavior system
+		if (enemyCar.aiBehaviorMode === undefined) enemyCar.aiBehaviorMode = Math.floor(Math.random() * 4); // 0: Hunter, 1: Patrol, 2: Circler, 3: Ambusher
+		if (enemyCar.aiBehaviorTimer === undefined) enemyCar.aiBehaviorTimer = 0;
+		if (enemyCar.aiBehaviorSwitchTime === undefined) enemyCar.aiBehaviorSwitchTime = 180 + Math.random() * 240; // Switch every 3-7 seconds
+		if (enemyCar.aiPatrolTarget === undefined) enemyCar.aiPatrolTarget = {
+			x: Math.random() * 2048,
+			y: Math.random() * 2186
+		};
+		if (enemyCar.aiCircleCenter === undefined) enemyCar.aiCircleCenter = {
+			x: carPlayer.x,
+			y: carPlayer.y
+		};
+		if (enemyCar.aiCircleRadius === undefined) enemyCar.aiCircleRadius = 200 + Math.random() * 300;
+		if (enemyCar.aiCircleAngle === undefined) enemyCar.aiCircleAngle = Math.random() * Math.PI * 2;
+		if (enemyCar.aiAmbushPoint === undefined) enemyCar.aiAmbushPoint = null;
+		if (enemyCar.aiPersonality === undefined) {
+			// Each enemy gets a unique personality that affects behavior
+			enemyCar.aiPersonality = {
+				aggressiveness: 0.3 + Math.random() * 0.7,
+				// 0.3-1.0
+				unpredictability: 0.2 + Math.random() * 0.6,
+				// 0.2-0.8
+				patience: 0.1 + Math.random() * 0.9,
+				// 0.1-1.0
+				roamDistance: 100 + Math.random() * 400 // 100-500 pixel roaming range
+			};
+		}
+		// Update behavior timer
+		enemyCar.aiBehaviorTimer++;
+		// Switch behavior modes based on personality and timer
+		if (enemyCar.aiBehaviorTimer >= enemyCar.aiBehaviorSwitchTime) {
+			enemyCar.aiBehaviorTimer = 0;
+			enemyCar.aiBehaviorSwitchTime = Math.floor((120 + Math.random() * 360) * enemyCar.aiPersonality.patience); // 2-8 seconds based on patience
+			// Choose new behavior with personality influence
+			var behaviorRandom = Math.random();
+			if (enemyCar.aiPersonality.aggressiveness > 0.7 && behaviorRandom < 0.4) {
+				enemyCar.aiBehaviorMode = 0; // Hunter - aggressive enemies prefer hunting
+			} else if (enemyCar.aiPersonality.unpredictability > 0.6 && behaviorRandom < 0.3) {
+				enemyCar.aiBehaviorMode = Math.floor(Math.random() * 4); // Random behavior for unpredictable enemies
+			} else {
+				// Normal behavior distribution
+				enemyCar.aiBehaviorMode = Math.floor(Math.random() * 4);
+			}
+			// Reset behavior-specific variables
+			enemyCar.aiPatrolTarget = {
+				x: Math.random() * 1900 + 74,
+				y: Math.random() * 2000 + 93
+			};
+			enemyCar.aiCircleCenter = {
+				x: carPlayer.x,
+				y: carPlayer.y
+			};
+			enemyCar.aiCircleRadius = 200 + Math.random() * 300;
+			enemyCar.aiAmbushPoint = null;
+		}
 		// Calculate player's current speed and velocity direction
 		var playerSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
 		var playerVelX = velocityX;
 		var playerVelY = velocityY;
-		// Calculate distance to player for time prediction
+		// Calculate distance to player
 		var deltaToPlayer = {
 			x: carPlayer.x - enemyCar.x,
 			y: carPlayer.y - enemyCar.y
 		};
 		var distanceToPlayer = Math.sqrt(deltaToPlayer.x * deltaToPlayer.x + deltaToPlayer.y * deltaToPlayer.y);
-		// Predict where player will be based on their current velocity
-		var predictionTime = 0;
-		if (playerSpeed > 0.5) {
-			// Calculate how long it would take enemy to reach player at current speeds
-			var enemySpeed = Math.sqrt(enemyCar.aiDriftVelocityX * enemyCar.aiDriftVelocityX + enemyCar.aiDriftVelocityY * enemyCar.aiDriftVelocityY);
-			var averageSpeed = Math.max(1, (enemySpeed + enemyCar.aiMaxSpeed) / 2); // Use average of current and max speed
-			predictionTime = distanceToPlayer / averageSpeed; // Time to intercept
-			// Limit prediction time to avoid excessive future prediction
-			predictionTime = Math.min(predictionTime, 120); // Max 2 seconds at 60fps
+		// Determine target based on behavior mode
+		var targetX = carPlayer.x;
+		var targetY = carPlayer.y;
+		var aiPower = 0.5; // Default power
+		var desiredAngle = 0;
+		// Behavior Mode Logic
+		if (enemyCar.aiBehaviorMode === 0) {
+			// Hunter Mode - Direct aggressive pursuit with prediction
+			var predictionTime = 0;
+			if (playerSpeed > 0.5) {
+				var enemySpeed = Math.sqrt(enemyCar.aiDriftVelocityX * enemyCar.aiDriftVelocityX + enemyCar.aiDriftVelocityY * enemyCar.aiDriftVelocityY);
+				var averageSpeed = Math.max(1, (enemySpeed + enemyCar.aiMaxSpeed) / 2);
+				predictionTime = distanceToPlayer / averageSpeed * enemyCar.aiPersonality.aggressiveness; // More aggressive = more prediction
+				predictionTime = Math.min(predictionTime, 100);
+			}
+			targetX = carPlayer.x + playerVelX * predictionTime;
+			targetY = carPlayer.y + playerVelY * predictionTime;
+			aiPower = 0.7 + enemyCar.aiPersonality.aggressiveness * 0.3; // 0.7-1.0 power
+		} else if (enemyCar.aiBehaviorMode === 1) {
+			// Patrol Mode - Move between random points, occasionally chase player
+			var deltaToPatrol = {
+				x: enemyCar.aiPatrolTarget.x - enemyCar.x,
+				y: enemyCar.aiPatrolTarget.y - enemyCar.y
+			};
+			var distanceToPatrol = Math.sqrt(deltaToPatrol.x * deltaToPatrol.x + deltaToPatrol.y * deltaToPatrol.y);
+			if (distanceToPatrol < 80 || distanceToPlayer < 300 && Math.random() < 0.02) {
+				// Reached patrol point or spotted player nearby - choose new target
+				if (distanceToPlayer < 300 && Math.random() < enemyCar.aiPersonality.aggressiveness) {
+					// Chase player
+					targetX = carPlayer.x + (Math.random() - 0.5) * 200;
+					targetY = carPlayer.y + (Math.random() - 0.5) * 200;
+					aiPower = 0.8;
+				} else {
+					// New patrol point
+					enemyCar.aiPatrolTarget.x = Math.random() * 1900 + 74;
+					enemyCar.aiPatrolTarget.y = Math.random() * 2000 + 93;
+					targetX = enemyCar.aiPatrolTarget.x;
+					targetY = enemyCar.aiPatrolTarget.y;
+					aiPower = 0.4 + Math.random() * 0.3;
+				}
+			} else {
+				targetX = enemyCar.aiPatrolTarget.x;
+				targetY = enemyCar.aiPatrolTarget.y;
+				aiPower = 0.4 + Math.random() * 0.3;
+			}
+		} else if (enemyCar.aiBehaviorMode === 2) {
+			// Circler Mode - Circle around player at varying distances
+			enemyCar.aiCircleAngle += (0.02 + Math.random() * 0.03) * (Math.random() < 0.5 ? 1 : -1); // Vary circle speed and direction
+			var radiusVariation = Math.sin(LK.ticks * 0.05 + ec) * 100; // Sine wave radius variation
+			var currentRadius = enemyCar.aiCircleRadius + radiusVariation;
+			// Update circle center to follow player loosely
+			var centerFollowSpeed = 0.05 + enemyCar.aiPersonality.aggressiveness * 0.05;
+			enemyCar.aiCircleCenter.x += (carPlayer.x - enemyCar.aiCircleCenter.x) * centerFollowSpeed;
+			enemyCar.aiCircleCenter.y += (carPlayer.y - enemyCar.aiCircleCenter.y) * centerFollowSpeed;
+			targetX = enemyCar.aiCircleCenter.x + Math.cos(enemyCar.aiCircleAngle) * currentRadius;
+			targetY = enemyCar.aiCircleCenter.y + Math.sin(enemyCar.aiCircleAngle) * currentRadius;
+			// Keep target in bounds
+			targetX = Math.max(74, Math.min(1974, targetX));
+			targetY = Math.max(93, Math.min(2093, targetY));
+			aiPower = 0.6 + Math.sin(LK.ticks * 0.03 + ec) * 0.2; // Varying power
+			// Occasionally break circle to attack
+			if (distanceToPlayer < 250 && Math.random() < 0.01 * enemyCar.aiPersonality.aggressiveness) {
+				targetX = carPlayer.x;
+				targetY = carPlayer.y;
+				aiPower = 0.9;
+			}
+		} else if (enemyCar.aiBehaviorMode === 3) {
+			// Ambusher Mode - Set up ambush points based on player movement
+			if (!enemyCar.aiAmbushPoint) {
+				// Calculate ambush position ahead of player
+				var ambushDistance = 400 + Math.random() * 300;
+				var playerDirection = Math.atan2(playerVelY, playerVelX);
+				var ambushAngle = playerDirection + (Math.random() - 0.5) * 1.5; // Vary angle
+				enemyCar.aiAmbushPoint = {
+					x: carPlayer.x + Math.cos(ambushAngle) * ambushDistance,
+					y: carPlayer.y + Math.sin(ambushAngle) * ambushDistance
+				};
+				// Keep ambush point in bounds
+				enemyCar.aiAmbushPoint.x = Math.max(74, Math.min(1974, enemyCar.aiAmbushPoint.x));
+				enemyCar.aiAmbushPoint.y = Math.max(93, Math.min(2093, enemyCar.aiAmbushPoint.y));
+			}
+			var deltaToAmbush = {
+				x: enemyCar.aiAmbushPoint.x - enemyCar.x,
+				y: enemyCar.aiAmbushPoint.y - enemyCar.y
+			};
+			var distanceToAmbush = Math.sqrt(deltaToAmbush.x * deltaToAmbush.x + deltaToAmbush.y * deltaToAmbush.y);
+			if (distanceToAmbush < 100) {
+				// Reached ambush point - wait or strike
+				if (distanceToPlayer < 350) {
+					// Strike!
+					targetX = carPlayer.x;
+					targetY = carPlayer.y;
+					aiPower = 1.0;
+				} else {
+					// Wait at ambush point with minimal movement
+					targetX = enemyCar.aiAmbushPoint.x + (Math.random() - 0.5) * 60;
+					targetY = enemyCar.aiAmbushPoint.y + (Math.random() - 0.5) * 60;
+					aiPower = 0.2;
+				}
+			} else {
+				// Move to ambush point
+				targetX = enemyCar.aiAmbushPoint.x;
+				targetY = enemyCar.aiAmbushPoint.y;
+				aiPower = 0.7;
+			}
 		}
-		// Calculate predicted future position of player
-		var predictedPlayerX = carPlayer.x + playerVelX * predictionTime;
-		var predictedPlayerY = carPlayer.y + playerVelY * predictionTime;
-		// Keep predicted position within gameplay bounds
-		predictedPlayerX = Math.max(64, Math.min(2048 - 64, predictedPlayerX));
-		predictedPlayerY = Math.max(64, Math.min(2186 - 64, predictedPlayerY));
-		// Add some randomization to make AI less predictable
-		var randomOffset = 50 + Math.random() * 100; // 50-150 pixel offset
-		var randomAngle = Math.random() * Math.PI * 2;
-		var offsetX = Math.cos(randomAngle) * randomOffset;
-		var offsetY = Math.sin(randomAngle) * randomOffset;
-		// Calculate final intercept target with randomization
-		var interceptTargetX = predictedPlayerX + offsetX;
-		var interceptTargetY = predictedPlayerY + offsetY;
-		// Keep intercept target within bounds
-		interceptTargetX = Math.max(64, Math.min(2048 - 64, interceptTargetX));
-		interceptTargetY = Math.max(64, Math.min(2186 - 64, interceptTargetY));
-		// Calculate direction to intercept target
+		// Add unpredictability variations
+		if (Math.random() < enemyCar.aiPersonality.unpredictability * 0.05) {
+			// Random direction change
+			var randomAngle = Math.random() * Math.PI * 2;
+			var randomDistance = 100 + Math.random() * 200;
+			targetX += Math.cos(randomAngle) * randomDistance;
+			targetY += Math.sin(randomAngle) * randomDistance;
+			targetX = Math.max(74, Math.min(1974, targetX));
+			targetY = Math.max(93, Math.min(2093, targetY));
+		}
+		// Calculate direction to target
 		var deltaToTarget = {
-			x: interceptTargetX - enemyCar.x,
-			y: interceptTargetY - enemyCar.y
+			x: targetX - enemyCar.x,
+			y: targetY - enemyCar.y
 		};
 		var distanceToTarget = Math.sqrt(deltaToTarget.x * deltaToTarget.x + deltaToTarget.y * deltaToTarget.y);
-		// Calculate desired angle to face intercept target
-		var desiredAngle = Math.atan2(deltaToTarget.x, -deltaToTarget.y);
-		// Calculate AI power based on distance to intercept target and player speed
-		var aiPower = 0;
-		if (distanceToTarget > 80) {
-			// More aggressive pursuit when player is moving fast
-			var speedBonus = Math.min(0.4, playerSpeed / maxSpeed); // Up to 40% bonus power based on player speed
-			var basePower = Math.min(1, (distanceToTarget - 80) / 250); // Base power from distance
-			aiPower = Math.min(1, basePower + speedBonus); // Combined power with speed bonus
-		} else if (distanceToTarget < 40) {
-			// Reduce power when very close to avoid overshooting
-			aiPower = 0.3;
+		// Calculate desired angle to face target
+		desiredAngle = Math.atan2(deltaToTarget.x, -deltaToTarget.y);
+		// Apply personality-based power modifications
+		aiPower = Math.min(1.0, aiPower * (0.5 + enemyCar.aiPersonality.aggressiveness * 0.5));
+		// Reduce power when very close to avoid overshooting (except in hunter mode)
+		if (distanceToTarget < 60 && enemyCar.aiBehaviorMode !== 0) {
+			aiPower *= 0.5;
 		}
 		// Update AI target rotation to face intercept target
 		enemyCar.aiTargetRotation = desiredAngle;
 		// Apply same rotation logic as player