/**** 
* 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 with weight
	self.velocityX = 0;
	self.velocityY = 0;
	self.rotation = 0;
	self.weight = 1.0 + Math.random() * 1.5; // Random weight between 1.0 and 2.5
	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 store multiple enemy cars
var enemyCars = [];
var numEnemyCars = 3 + Math.floor(Math.random() * 3); // Random between 3-5 cars
// Create multiple enemy cars in gameplay area at random positions
for (var carIndex = 0; carIndex < numEnemyCars; carIndex++) {
	var enemyCar = new EnemyCar();
	// Generate random position around the edges or inside the gameplay area
	var spawnSide = Math.floor(Math.random() * 4); // 0=top, 1=right, 2=bottom, 3=left
	var centerX = 1024; // Center of gameplay area
	var centerY = 1093; // Center of gameplay area (2186/2)
	switch (spawnSide) {
		case 0:
		case 0:
			// Top edge
			enemyCar.x = Math.random() * 1800 + 124; // Random X between 124-1924
			enemyCar.y = Math.random() * 300 + 50; // Random Y between 50-350
			break;
		case 1:
			// Right edge
			enemyCar.x = Math.random() * 300 + 1700; // Random X between 1700-2000
			enemyCar.y = Math.random() * 1800 + 193; // Random Y between 193-1993
			break;
		case 2:
			// Bottom edge
			enemyCar.x = Math.random() * 1800 + 124; // Random X between 124-1924
			enemyCar.y = Math.random() * 300 + 1836; // Random Y between 1836-2136
			break;
		case 3:
			// Left edge
			enemyCar.x = Math.random() * 300 + 50; // Random X between 50-350
			enemyCar.y = Math.random() * 1800 + 193; // Random Y between 193-1993
			break;
	}
	// Calculate rotation to face the center
	var deltaX = centerX - enemyCar.x;
	var deltaY = centerY - enemyCar.y;
	enemyCar.rotation = Math.atan2(deltaX, -deltaY); // Rotation to face center
	// Give each AI car individual tactical preferences and personality
	enemyCar.tacticalPersonality = {
		// Primary strategy preference probabilities (0-1)
		directPreference: 0.2 + Math.random() * 0.6,
		// 0.2-0.8 preference for direct pursuit
		ambushPreference: 0.1 + Math.random() * 0.7,
		// 0.1-0.8 preference for ambush tactics  
		intimidationPreference: 0.1 + Math.random() * 0.5,
		// 0.1-0.6 preference for intimidation
		// Speed-based tactical preferences
		slowTargetStrategy: Math.floor(Math.random() * 3),
		// 0=direct, 1=intimidate, 2=ambush for slow targets
		fastTargetStrategy: Math.floor(Math.random() * 3),
		// 0=direct, 1=intimidate, 2=ambush for fast targets
		mediumTargetStrategy: Math.floor(Math.random() * 3),
		// 0=direct, 1=intimidate, 2=ambush for medium targets
		// Individual behavioral traits
		aggressiveness: 0.3 + Math.random() * 0.7,
		// 0.3-1.0 how aggressive this car is
		patience: 0.2 + Math.random() * 0.8,
		// 0.2-1.0 how long car sticks to one strategy
		adaptability: 0.1 + Math.random() * 0.9,
		// 0.1-1.0 how quickly car changes strategies
		// Individual strategy duration preferences (in frames)
		minStrategyDuration: 30 + Math.floor(Math.random() * 60),
		// 0.5-1.5 seconds minimum
		maxStrategyDuration: 90 + Math.floor(Math.random() * 180),
		// 1.5-4.5 seconds maximum
		// Personal distance preferences
		preferredAttackDistance: 100 + Math.random() * 200,
		// 100-300 preferred distance for attacks
		preferredIntimidationDistance: 120 + Math.random() * 100,
		// 120-220 preferred intimidation distance
		personalSpaceRadius: 80 + Math.random() * 120 // 80-200 personal space when maneuvering
	};
	// Add to array and scene
	enemyCars.push(enemyCar);
	gameplayBackground.addChild(enemyCar);
}
// For backward compatibility, keep reference to first enemy car
var enemyCar = enemyCars[0];
// 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;
// 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)
// Player car weight
var playerCarWeight = 1.2; // Player car is moderately heavy
// 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);
		}
	}
	// Apply smooth braking to player car after wall collision for more natural deceleration
	if (!carPlayer.smoothBraking) carPlayer.smoothBraking = false;
	if (!carPlayer.brakeFrames) carPlayer.brakeFrames = 0;
	var currentPlayerSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
	// If player car was just launched (high velocity), enable smooth braking
	if (currentPlayerSpeed > maxSpeed * 0.6 && !carPlayer.smoothBraking) {
		carPlayer.smoothBraking = true;
		carPlayer.brakeFrames = 0;
	}
	// Smooth braking logic: apply a gentle, progressive friction for a short period after wall collision
	if (carPlayer.smoothBraking) {
		// Braking lasts for 18 frames (~0.3s at 60fps)
		var brakeDuration = 18;
		var brakeProgress = Math.min(1, carPlayer.brakeFrames / brakeDuration);
		// Start with gentle friction, increase to normal friction
		var minFriction = 0.96;
		var maxFriction = 0.92 - currentPlayerSpeed / maxSpeed * 0.05;
		var frictionRate = minFriction + (maxFriction - minFriction) * brakeProgress;
		velocityX *= frictionRate;
		velocityY *= frictionRate;
		carPlayer.brakeFrames++;
		if (carPlayer.brakeFrames >= brakeDuration) {
			carPlayer.smoothBraking = false;
		}
	} else if (currentPlayerSpeed > 0.1) {
		// Normal progressive friction when not actively controlling
		if (power <= 0.1) {
			// Only apply extra friction when not accelerating
			var frictionRate = 0.92 - currentPlayerSpeed / maxSpeed * 0.05; // More friction at higher speeds
			velocityX *= frictionRate;
			velocityY *= frictionRate;
		}
	} else {
		// Stop very slow movement to prevent endless drift
		if (power <= 0.1) {
			velocityX = 0;
			velocityY = 0;
		}
	}
	// Particle system for car exhaust (global, supports all cars)
	if (!game.particles) {
		game.particles = [];
	}
	// Helper function to emit particles for any car
	function emitCarParticles(car, vx, vy, rotation, maxSpeed, gameplayBackground) {
		var totalSpeed = Math.sqrt(vx * vx + vy * vy);
		var speedRatio = totalSpeed / maxSpeed;
		var particleFrequency = Math.max(1, Math.floor(8 - speedRatio * 6));
		if (speedRatio > 0.05 && LK.ticks % particleFrequency === 0) {
			// Calculate particle spawn position behind the car
			var particleSpawnX = car.x - Math.sin(rotation) * 55;
			var particleSpawnY = car.y + Math.cos(rotation) * 55;
			var particleCount = Math.max(1, Math.floor(speedRatio * 3));
			for (var p = 0; p < particleCount; p++) {
				var newParticle = new Particle();
				newParticle.x = particleSpawnX + (Math.random() - 0.5) * 19.2;
				newParticle.y = particleSpawnY + (Math.random() - 0.5) * 19.2;
				newParticle.velocityX += -vx * 0.12 + (Math.random() - 0.5) * 2.4;
				newParticle.velocityY += -vy * 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
				});
			}
		}
	}
	// Optimize particle emissions - reduce frequency
	if (LK.ticks % 2 === 0) {
		// Only emit particles every other frame
		// Emit particles for player car
		emitCarParticles(carPlayer, velocityX, velocityY, carPlayer.rotation, maxSpeed, gameplayBackground);
		// Emit particles for all enemy cars
		for (var carIdx = 0; carIdx < enemyCars.length; carIdx++) {
			var currentEnemyCar = enemyCars[carIdx];
			var enemyTotalVX = (currentEnemyCar.aiVelocityX || 0) + (currentEnemyCar.velocityX || 0);
			var enemyTotalVY = (currentEnemyCar.aiVelocityY || 0) + (currentEnemyCar.velocityY || 0);
			emitCarParticles(currentEnemyCar, enemyTotalVX, enemyTotalVY, currentEnemyCar.rotation, maxSpeed, gameplayBackground);
		}
	}
	// Update and clean up particles (batch process)
	var particlesToRemove = [];
	for (var i = 0; i < game.particles.length; i++) {
		var particle = game.particles[i];
		if (particle.age >= particle.lifespan) {
			particlesToRemove.push(i);
		}
	}
	// Remove particles in reverse order to maintain indices
	for (var r = particlesToRemove.length - 1; r >= 0; r--) {
		var idx = particlesToRemove[r];
		game.particles[idx].destroy();
		game.particles.splice(idx, 1);
	}
	// Check collision between player car and all enemy cars using smaller collision boxes (optimized)
	if (!carPlayer.lastColliding) carPlayer.lastColliding = [];
	// Initialize collision tracking array for all cars
	while (carPlayer.lastColliding.length < enemyCars.length) {
		carPlayer.lastColliding.push(false);
	}
	// Define smaller collision boxes (approximately 60% of actual asset size for more precise collision) - cache constants
	var playerCollisionWidth = 38; // Reduced from 64px width
	var playerCollisionHeight = 57; // Reduced from ~95px height
	var enemyCollisionWidth = 38; // Reduced from 64px width
	var enemyCollisionHeight = 57; // Reduced from ~94px height
	var halfPlayerWidth = playerCollisionWidth / 2;
	var halfPlayerHeight = playerCollisionHeight / 2;
	var halfEnemyWidth = enemyCollisionWidth / 2;
	var halfEnemyHeight = enemyCollisionHeight / 2;
	var playerLeft = carPlayer.x - halfPlayerWidth;
	var playerRight = carPlayer.x + halfPlayerWidth;
	var playerTop = carPlayer.y - halfPlayerHeight;
	var playerBottom = carPlayer.y + halfPlayerHeight;
	// Check collision with each enemy car
	for (var enemyIdx = 0; enemyIdx < enemyCars.length; enemyIdx++) {
		var currentEnemyCar = enemyCars[enemyIdx];
		var enemyLeft = currentEnemyCar.x - halfEnemyWidth;
		var enemyRight = currentEnemyCar.x + halfEnemyWidth;
		var enemyTop = currentEnemyCar.y - halfEnemyHeight;
		var enemyBottom = currentEnemyCar.y + halfEnemyHeight;
		// More precise collision detection using smaller bounding boxes
		var currentColliding = !(playerRight < enemyLeft || playerLeft > enemyRight || playerBottom < enemyTop || playerTop > enemyBottom);
		if (!carPlayer.lastColliding[enemyIdx] && currentColliding) {
			// Collision just started - calculate collision physics with mass
			var playerSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
			var enemySpeed = Math.sqrt(currentEnemyCar.velocityX * currentEnemyCar.velocityX + currentEnemyCar.velocityY * currentEnemyCar.velocityY);
			// Calculate collision direction (from player car to enemy car)
			var collisionDeltaX = currentEnemyCar.x - carPlayer.x;
			var collisionDeltaY = currentEnemyCar.y - carPlayer.y;
			var collisionDistance = Math.sqrt(collisionDeltaX * collisionDeltaX + collisionDeltaY * collisionDeltaY);
			// Normalize collision direction
			if (collisionDistance > 0) {
				collisionDeltaX /= collisionDistance;
				collisionDeltaY /= collisionDistance;
			}
			// Calculate momentum transfer using conservation of momentum
			var totalMass = playerCarWeight + currentEnemyCar.weight;
			var massRatio1 = (playerCarWeight - currentEnemyCar.weight) / totalMass;
			var massRatio2 = 2 * currentEnemyCar.weight / totalMass;
			var massRatio3 = 2 * playerCarWeight / totalMass;
			var massRatio4 = (currentEnemyCar.weight - playerCarWeight) / totalMass;
			// Make energy loss proportional to current speed for more natural and realistic crash
			var relativeSpeed = Math.max(playerSpeed, enemySpeed);
			var minLoss = 0.18; // minimum energy loss at very low speed
			var maxLoss = 0.65; // maximum energy loss at very high speed
			var speedNorm = Math.min(1, relativeSpeed / maxSpeed); // 0 to 1
			var energyLoss = minLoss + (maxLoss - minLoss) * speedNorm;
			var restitution = 1 - energyLoss;
			// Separate cars to prevent overlap
			var separationDistance = 70;
			carPlayer.x = currentEnemyCar.x - collisionDeltaX * separationDistance;
			carPlayer.y = currentEnemyCar.y - collisionDeltaY * separationDistance;
			// Calculate new velocities based on mass and current motion
			var playerImpactX = velocityX * massRatio1 + currentEnemyCar.velocityX * massRatio2;
			var playerImpactY = velocityY * massRatio1 + currentEnemyCar.velocityY * massRatio2;
			velocityX = playerImpactX * restitution;
			velocityY = playerImpactY * restitution;
			// Enemy car velocity change
			var enemyImpactX = velocityX * massRatio3 + currentEnemyCar.velocityX * massRatio4;
			var enemyImpactY = velocityY * massRatio3 + currentEnemyCar.velocityY * massRatio4;
			currentEnemyCar.velocityX = enemyImpactX * restitution;
			currentEnemyCar.velocityY = enemyImpactY * restitution;
			// Launch enemy car away from collision
			var launchSpeed = Math.max(playerSpeed, enemySpeed);
			var minPush = 0.4;
			var maxPush = 1.5;
			var pushMultiplier = minPush + (maxPush - minPush) * speedNorm;
			var launchDirX = currentEnemyCar.x - carPlayer.x;
			var launchDirY = currentEnemyCar.y - carPlayer.y;
			var launchDist = Math.sqrt(launchDirX * launchDirX + launchDirY * launchDirY);
			if (launchDist < 0.01) {
				var playerMoveNorm = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
				if (playerMoveNorm > 0.01) {
					launchDirX = velocityX / playerMoveNorm;
					launchDirY = velocityY / playerMoveNorm;
				} else {
					launchDirX = 0;
					launchDirY = -1;
				}
			} else {
				launchDirX /= launchDist;
				launchDirY /= launchDist;
			}
			currentEnemyCar.velocityX += launchDirX * launchSpeed * pushMultiplier;
			currentEnemyCar.velocityY += launchDirY * launchSpeed * pushMultiplier;
			// Add directional push based on collision angle and relative mass
			var pushIntensity = (playerSpeed + enemySpeed) * (0.5 + 0.5 * speedNorm);
			var playerPushRatio = currentEnemyCar.weight / totalMass;
			var enemyPushRatio = playerCarWeight / totalMass;
			velocityX += -collisionDeltaX * pushIntensity * playerPushRatio * 0.7;
			velocityY += -collisionDeltaY * pushIntensity * playerPushRatio * 0.7;
			currentEnemyCar.velocityX += collisionDeltaX * pushIntensity * enemyPushRatio * 0.7;
			currentEnemyCar.velocityY += collisionDeltaY * pushIntensity * enemyPushRatio * 0.7;
			// Reset acceleration interpolation
			var postCrashSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
			if (relativeSpeed > maxSpeed * 0.7) {
				currentVelocity = postCrashSpeed * 0.4;
			} else if (relativeSpeed > maxSpeed * 0.4) {
				currentVelocity = postCrashSpeed * 0.7;
			} else {
				currentVelocity = postCrashSpeed;
			}
			// Visual feedback for collision
			LK.effects.flashObject(carPlayer, 0xff0000, 500);
		}
		// Update last collision state for this enemy
		carPlayer.lastColliding[enemyIdx] = currentColliding;
	}
	// --- Enemy Cars AI Movement Logic (Optimized) ---
	// Process AI for each enemy car - stagger AI updates to reduce load
	var aiUpdateOffset = LK.ticks % enemyCars.length; // Stagger AI updates
	for (var aiCarIdx = 0; aiCarIdx < enemyCars.length; aiCarIdx++) {
		var enemyCar = enemyCars[aiCarIdx];
		// Only update AI for one car per frame (staggered)
		var shouldUpdateAI = aiCarIdx === aiUpdateOffset;
		// Dynamic target selection system - choose best target based on position and velocity
		if (typeof enemyCar.currentTarget === "undefined") enemyCar.currentTarget = null;
		if (typeof enemyCar.targetSelectionTimer === "undefined") enemyCar.targetSelectionTimer = 0;
		if (typeof enemyCar.targetSelectionInterval === "undefined") enemyCar.targetSelectionInterval = 60; // Re-evaluate every second
		// Re-evaluate target selection periodically (only for the current AI car being updated)
		if (shouldUpdateAI) {
			enemyCar.targetSelectionTimer++;
		}
		if ((enemyCar.targetSelectionTimer >= enemyCar.targetSelectionInterval || enemyCar.currentTarget === null) && shouldUpdateAI) {
			enemyCar.targetSelectionTimer = 0;
			// Create list of all potential targets (player + other enemy cars)
			var potentialTargets = [];
			// Add player as potential target
			potentialTargets.push({
				object: carPlayer,
				velocityX: velocityX,
				velocityY: velocityY,
				weight: playerCarWeight,
				isPlayer: true
			});
			// Add other enemy cars as potential targets
			for (var targetIdx = 0; targetIdx < enemyCars.length; targetIdx++) {
				if (targetIdx !== aiCarIdx) {
					// Don't target self
					var otherCar = enemyCars[targetIdx];
					potentialTargets.push({
						object: otherCar,
						velocityX: (otherCar.aiVelocityX || 0) + (otherCar.velocityX || 0),
						velocityY: (otherCar.aiVelocityY || 0) + (otherCar.velocityY || 0),
						weight: otherCar.weight,
						isPlayer: false
					});
				}
			}
			// Evaluate each target and assign scores
			var bestTarget = null;
			var bestScore = -1;
			for (var evalIdx = 0; evalIdx < potentialTargets.length; evalIdx++) {
				var target = potentialTargets[evalIdx];
				var targetSpeed = Math.sqrt(target.velocityX * target.velocityX + target.velocityY * target.velocityY);
				var targetDistance = Math.sqrt((target.object.x - enemyCar.x) * (target.object.x - enemyCar.x) + (target.object.y - enemyCar.y) * (target.object.y - enemyCar.y));
				// Calculate target score based on multiple factors
				var score = 0;
				// Distance factor - prefer closer targets (0-40 points)
				var distanceScore = Math.max(0, 40 - targetDistance / 1000 * 40);
				score += distanceScore;
				// Speed factor - prefer faster targets for more exciting gameplay (0-25 points)
				var speedRatio = targetSpeed / maxSpeed;
				var speedScore = speedRatio * 25;
				score += speedScore;
				// Weight factor - heavier targets are more satisfying to hit (0-15 points)
				var weightScore = Math.min(15, target.weight * 6);
				score += weightScore;
				// Player bonus - slight preference for player to maintain engagement (0-10 points)
				if (target.isPlayer) {
					score += 10;
				}
				// Velocity alignment factor - prefer targets moving in interesting directions (0-10 points)
				if (targetSpeed > 1) {
					var enemySpeed = Math.sqrt((enemyCar.aiVelocityX || 0) * (enemyCar.aiVelocityX || 0) + (enemyCar.aiVelocityY || 0) * (enemyCar.aiVelocityY || 0));
					if (enemySpeed > 1) {
						// Calculate if target and enemy are moving in similar or opposite directions
						var enemyVelX = enemyCar.aiVelocityX || 0;
						var enemyVelY = enemyCar.aiVelocityY || 0;
						var dotProduct = (target.velocityX * enemyVelX + target.velocityY * enemyVelY) / (targetSpeed * enemySpeed);
						// Prefer head-on collisions (opposite directions) - more exciting
						var alignmentScore = (1 - dotProduct) * 5; // 0-10 points
						score += alignmentScore;
					}
				}
				// Avoid recently targeted objects to prevent fixation (penalty)
				if (enemyCar.currentTarget && target.object === enemyCar.currentTarget.object) {
					// Apply small penalty to current target to encourage switching
					score *= 0.9;
				}
				// Select best target
				if (score > bestScore) {
					bestScore = score;
					bestTarget = target;
				}
			}
			// Update current target
			enemyCar.currentTarget = bestTarget;
			// Vary target selection interval for more dynamic behavior
			enemyCar.targetSelectionInterval = 45 + Math.floor(Math.random() * 90); // 0.75-2.25 seconds
		}
		// Enemy car can switch between 'follow target' and 'free roam' AI modes
		if (typeof enemyCar.aiMode === "undefined") enemyCar.aiMode = "follow";
		if (typeof enemyCar.aiModeTimer === "undefined") enemyCar.aiModeTimer = 0;
		if (typeof enemyCar.aiModeDuration === "undefined") enemyCar.aiModeDuration = 0;
		// AI mode switching logic: change mode at intervals with speed-based preferences
		enemyCar.aiModeTimer++;
		if (enemyCar.aiModeTimer > enemyCar.aiModeDuration) {
			// Calculate target speed for mode preference based on current target
			var targetSpeed = 0;
			if (enemyCar.currentTarget) {
				targetSpeed = Math.sqrt(enemyCar.currentTarget.velocityX * enemyCar.currentTarget.velocityX + enemyCar.currentTarget.velocityY * enemyCar.currentTarget.velocityY);
			}
			var targetSpeedRatio = targetSpeed / maxSpeed; // 0 to 1
			var followChance;
			// Speed-based mode preferences:
			// Very fast targets (>70% max speed) - 90% follow (for ambush tactics)
			// Fast targets (40-70% max speed) - 80% follow 
			// Medium targets (20-40% max speed) - 70% follow
			// Slow targets (<20% max speed) - 85% follow (for direct pursuit)
			if (targetSpeedRatio > 0.7) {
				// Very fast - prefer follow mode for ambush tactics
				followChance = 0.9;
			} else if (targetSpeedRatio > 0.4) {
				// Fast to medium - moderate follow preference
				followChance = 0.8;
			} else if (targetSpeedRatio > 0.2) {
				// Medium - balanced but still prefer follow
				followChance = 0.7;
			} else {
				// Slow - prefer follow mode for direct pursuit
				followChance = 0.85;
			}
			// Pick mode based on calculated preference
			if (Math.random() < followChance) {
				enemyCar.aiMode = "follow";
			} else {
				enemyCar.aiMode = "free";
			}
			// Duration: 1.2s to 3.5s (72 to 210 frames)
			enemyCar.aiModeDuration = 72 + Math.floor(Math.random() * 138);
			enemyCar.aiModeTimer = 0;
		}
		// --- AI movement logic depending on mode ---
		var aiDeltaX, aiDeltaY, aiDistance, aiTargetRotation, aiPower, aiTargetVelocity;
		// Edge avoidance logic - calculate repulsion from boundaries
		var edgeAvoidanceX = 0;
		var edgeAvoidanceY = 0;
		var edgeBuffer = 200; // Distance from edge to start avoiding
		var avoidanceStrength = 0.3; // How strongly to avoid edges
		// Check distance from each edge and calculate avoidance force
		if (enemyCar.x < edgeBuffer) {
			// Too close to left edge, push right
			var leftForce = (edgeBuffer - enemyCar.x) / edgeBuffer;
			edgeAvoidanceX += leftForce * avoidanceStrength;
		}
		if (enemyCar.x > 2048 - edgeBuffer) {
			// Too close to right edge, push left
			var rightForce = (enemyCar.x - (2048 - edgeBuffer)) / edgeBuffer;
			edgeAvoidanceX -= rightForce * avoidanceStrength;
		}
		if (enemyCar.y < edgeBuffer) {
			// Too close to top edge, push down
			var topForce = (edgeBuffer - enemyCar.y) / edgeBuffer;
			edgeAvoidanceY += topForce * avoidanceStrength;
		}
		if (enemyCar.y > 2186 - edgeBuffer) {
			// Too close to bottom edge, push up
			var bottomForce = (enemyCar.y - (2186 - edgeBuffer)) / edgeBuffer;
			edgeAvoidanceY -= bottomForce * avoidanceStrength;
		}
		if (enemyCar.aiMode === "follow") {
			// Initialize follow strategy if not set
			if (typeof enemyCar.followStrategy === "undefined") {
				enemyCar.followStrategy = 0;
				enemyCar.followStrategyTimer = 0;
				enemyCar.followStrategyDuration = 60 + Math.floor(Math.random() * 60); // 1-2 seconds for adaptive strategy
			}
			// Individual strategy selection based on each car's unique personality
			enemyCar.followStrategyTimer++;
			if (enemyCar.followStrategyTimer > enemyCar.followStrategyDuration) {
				// Calculate target speed for strategy selection
				var targetSpeed = 0;
				if (enemyCar.currentTarget) {
					targetSpeed = Math.sqrt(enemyCar.currentTarget.velocityX * enemyCar.currentTarget.velocityX + enemyCar.currentTarget.velocityY * enemyCar.currentTarget.velocityY);
				}
				var targetSpeedRatio = targetSpeed / maxSpeed; // 0 to 1
				var relativeDistance = Math.sqrt(aiDeltaX * aiDeltaX + aiDeltaY * aiDeltaY);
				var relativeAngle = Math.atan2(aiDeltaX, -aiDeltaY);
				var enemyAngle = enemyCar.rotation;
				var angleDifference = Math.abs(relativeAngle - enemyAngle);
				while (angleDifference > Math.PI) angleDifference = 2 * Math.PI - angleDifference;
				var isTargetAhead = angleDifference < Math.PI / 3; // Within 60 degrees ahead
				var isTargetBehind = angleDifference > 2 * Math.PI / 3; // More than 120 degrees behind
				// Individual strategy selection based on car's tactical personality
				var personality = enemyCar.tacticalPersonality;
				var strategyScores = [0, 0, 0]; // [direct, intimidation, ambush]
				// Base preference scores from personality
				strategyScores[0] = personality.directPreference;
				strategyScores[1] = personality.intimidationPreference;
				strategyScores[2] = personality.ambushPreference;
				// Modify scores based on target speed and individual preferences
				if (targetSpeedRatio < 0.3) {
					// Slow target - use individual slow target strategy preference
					var preferredStrategy = personality.slowTargetStrategy;
					strategyScores[preferredStrategy] += 0.4;
				} else if (targetSpeedRatio > 0.6) {
					// Fast target - use individual fast target strategy preference
					var preferredStrategy = personality.fastTargetStrategy;
					strategyScores[preferredStrategy] += 0.4;
				} else {
					// Medium speed target - use individual medium target strategy preference
					var preferredStrategy = personality.mediumTargetStrategy;
					strategyScores[preferredStrategy] += 0.3;
				}
				// Situational modifiers based on individual traits
				if (targetSpeedRatio < 0.05) {
					// Target is nearly stationary - intimidation gets bonus for patient cars
					if (personality.patience > 0.6) {
						strategyScores[1] += 0.3; // Patient cars prefer intimidation
						// Initialize intimidation counter if not set
						if (typeof enemyCar.intimidationCount === "undefined") {
							enemyCar.intimidationCount = 0;
							enemyCar.maxIntimidations = Math.floor(personality.patience * 4) + 1; // 1-4 based on patience
						}
						// Check if we've completed enough intimidations
						if (enemyCar.intimidationCount >= enemyCar.maxIntimidations) {
							strategyScores[0] += 0.5; // Switch to direct after enough intimidation
							strategyScores[1] -= 0.3;
						}
					} else {
						strategyScores[0] += 0.4; // Impatient cars go direct
					}
				}
				// Distance-based individual preferences
				if (relativeDistance < personality.preferredAttackDistance) {
					// Within preferred attack range - aggressive cars prefer direct
					strategyScores[0] += personality.aggressiveness * 0.3;
				} else if (relativeDistance > personality.preferredAttackDistance * 2) {
					// Far away - adaptive cars prefer ambush
					strategyScores[2] += personality.adaptability * 0.3;
				}
				// Positional modifiers with individual traits
				if (isTargetBehind || relativeDistance < personality.personalSpaceRadius) {
					// Target behind or in personal space - use intimidation for positioning
					strategyScores[1] += 0.2;
				} else if (isTargetAhead && relativeDistance < personality.preferredAttackDistance * 1.5) {
					// Target ahead and in preferred range
					if (personality.aggressiveness > 0.6) {
						strategyScores[0] += 0.3; // Aggressive cars go direct
					} else {
						strategyScores[1] += 0.2; // Less aggressive cars intimidate first
					}
				}
				// Select strategy with highest score (with some randomness based on adaptability)
				var maxScore = Math.max(strategyScores[0], strategyScores[1], strategyScores[2]);
				var candidateStrategies = [];
				for (var s = 0; s < 3; s++) {
					if (strategyScores[s] >= maxScore - personality.adaptability * 0.2) {
						candidateStrategies.push(s);
					}
				}
				enemyCar.followStrategy = candidateStrategies[Math.floor(Math.random() * candidateStrategies.length)];
				// Individual strategy duration based on personality
				var baseDuration = personality.minStrategyDuration + (personality.maxStrategyDuration - personality.minStrategyDuration) * personality.patience;
				var strategyMultiplier = 1.0;
				switch (enemyCar.followStrategy) {
					case 0:
						// Direct - duration affected by aggressiveness (aggressive = shorter bursts)
						strategyMultiplier = 1.2 - personality.aggressiveness * 0.4;
						break;
					case 1:
						// Intimidation - duration affected by patience (patient = longer intimidation)
						strategyMultiplier = 0.8 + personality.patience * 0.6;
						break;
					case 2:
						// Ambush - duration affected by adaptability (adaptive = longer planning)
						strategyMultiplier = 1.0 + personality.adaptability * 0.5;
						break;
				}
				enemyCar.followStrategyDuration = Math.floor(baseDuration * strategyMultiplier);
				enemyCar.followStrategyTimer = 0;
			}
			// Calculate base values using current target instead of always player (optimized)
			if (enemyCar.currentTarget) {
				aiDeltaX = enemyCar.currentTarget.object.x - enemyCar.x;
				aiDeltaY = enemyCar.currentTarget.object.y - enemyCar.y;
				// Cache distance calculation
				var aiDeltaXSq = aiDeltaX * aiDeltaX;
				var aiDeltaYSq = aiDeltaY * aiDeltaY;
				aiDistance = Math.sqrt(aiDeltaXSq + aiDeltaYSq);
				// Calculate relative velocity and approach angle for smarter pursuit
				var aiVelX = enemyCar.aiVelocityX || 0;
				var aiVelY = enemyCar.aiVelocityY || 0;
				var relativeVelX = enemyCar.currentTarget.velocityX - aiVelX;
				var relativeVelY = enemyCar.currentTarget.velocityY - aiVelY;
			} else {
				// Fallback to player if no target selected
				aiDeltaX = carPlayer.x - enemyCar.x;
				aiDeltaY = carPlayer.y - enemyCar.y;
				// Cache distance calculation
				var aiDeltaXSq = aiDeltaX * aiDeltaX;
				var aiDeltaYSq = aiDeltaY * aiDeltaY;
				aiDistance = Math.sqrt(aiDeltaXSq + aiDeltaYSq);
				var aiVelX = enemyCar.aiVelocityX || 0;
				var aiVelY = enemyCar.aiVelocityY || 0;
				var relativeVelX = velocityX - aiVelX;
				var relativeVelY = velocityY - aiVelY;
			}
			var approachAngle = Math.atan2(aiDeltaX, -aiDeltaY);
			var enemyCurrentAngle = enemyCar.rotation;
			var angleDiff = approachAngle - enemyCurrentAngle;
			while (angleDiff > Math.PI) angleDiff -= 2 * Math.PI;
			while (angleDiff < -Math.PI) angleDiff += 2 * Math.PI;
			// Anti-circling detection: check if we're in a circular pattern
			if (typeof enemyCar.lastPositions === "undefined") {
				enemyCar.lastPositions = [];
				enemyCar.circlingDetected = false;
				enemyCar.circlingCooldown = 0;
			}
			// Store position history for circling detection
			enemyCar.lastPositions.push({
				x: enemyCar.x,
				y: enemyCar.y,
				frame: LK.ticks
			});
			if (enemyCar.lastPositions.length > 60) {
				// Keep 1 second of history
				enemyCar.lastPositions.shift();
			}
			// Detect circling by checking if we've been in similar positions recently
			var circlingThreshold = 80; // Distance threshold for considering positions "similar"
			var circlingCount = 0;
			for (var i = 0; i < enemyCar.lastPositions.length - 20; i++) {
				var oldPos = enemyCar.lastPositions[i];
				var dist = Math.sqrt((enemyCar.x - oldPos.x) * (enemyCar.x - oldPos.x) + (enemyCar.y - oldPos.y) * (enemyCar.y - oldPos.y));
				if (dist < circlingThreshold) {
					circlingCount++;
				}
			}
			enemyCar.circlingDetected = circlingCount > 3 && aiDistance < 200; // Circling if close to player and repeating positions
			// Reduce circling cooldown
			if (enemyCar.circlingCooldown > 0) enemyCar.circlingCooldown--;
			// Initialize failure detection system for direct pursuit
			if (typeof enemyCar.directPursuitTimer === "undefined") {
				enemyCar.directPursuitTimer = 0;
				enemyCar.lastPlayerDistance = aiDistance;
				enemyCar.nearMissCount = 0;
				enemyCar.totalPursuitTime = 0;
			}
			// Apply different follow strategies with distance awareness
			switch (enemyCar.followStrategy) {
				case 0:
					// Direct pursuit - straight chase with distance management
					// Track pursuit effectiveness
					enemyCar.directPursuitTimer++;
					enemyCar.totalPursuitTime++;
					// Detect near misses - when AI gets very close but doesn't hit
					if (aiDistance < 80 && enemyCar.lastPlayerDistance > 80) {
						// Just entered close range
						enemyCar.directPursuitTimer = 0; // Reset timer on new approach
					}
					if (enemyCar.lastPlayerDistance < 80 && aiDistance > 120) {
						// Just left close range without collision - potential near miss
						enemyCar.nearMissCount++;
					}
					// Check for failure conditions in direct pursuit
					var pursuitFailed = false;
					if (enemyCar.nearMissCount >= 2) {
						// Failed after 2 near misses
						pursuitFailed = true;
					} else if (enemyCar.totalPursuitTime > 300 && !currentColliding) {
						// Failed after 5 seconds without collision
						pursuitFailed = true;
					} else if (enemyCar.directPursuitTimer > 120 && aiDistance > 200) {
						// Failed if stuck at medium distance for 2 seconds
						pursuitFailed = true;
					}
					// Switch strategy if direct pursuit failed
					if (pursuitFailed) {
						// Reset failure tracking
						enemyCar.nearMissCount = 0;
						enemyCar.totalPursuitTime = 0;
						enemyCar.directPursuitTimer = 0;
						// Calculate target speed for strategy selection
						var currentTargetSpeed = 0;
						if (enemyCar.currentTarget) {
							currentTargetSpeed = Math.sqrt(enemyCar.currentTarget.velocityX * enemyCar.currentTarget.velocityX + enemyCar.currentTarget.velocityY * enemyCar.currentTarget.velocityY);
						}
						var targetSpeedRatio = currentTargetSpeed / maxSpeed;
						// Choose new strategy based on current situation
						if (targetSpeedRatio > 0.5 || aiDistance > 300) {
							// Fast target or far away - try ambush
							enemyCar.followStrategy = 2;
							enemyCar.followStrategyDuration = 90 + Math.floor(Math.random() * 60);
						} else {
							// Slow target or close - try varied approach
							enemyCar.followStrategy = 1;
							enemyCar.followStrategyDuration = 60 + Math.floor(Math.random() * 60);
						}
						enemyCar.followStrategyTimer = 0;
					}
					// Check if AI can go straight to target for speed optimization
					var currentEnemyAngle = enemyCar.rotation;
					var straightLineAngle = Math.atan2(aiDeltaX, -aiDeltaY);
					var angleToTarget = straightLineAngle - currentEnemyAngle;
					while (angleToTarget > Math.PI) angleToTarget -= 2 * Math.PI;
					while (angleToTarget < -Math.PI) angleToTarget += 2 * Math.PI;
					// AI is considered "aligned" if facing within 15 degrees of target
					var isAlignedWithTarget = Math.abs(angleToTarget) < Math.PI / 12; // 15 degrees
					if (aiDistance < enemyCar.tacticalPersonality.preferredAttackDistance * 0.6 && !enemyCar.circlingDetected) {
						// Too close for this car's preferred attack style - back off based on aggressiveness
						var backoffIntensity = 0.3 + (1 - enemyCar.tacticalPersonality.aggressiveness) * 0.4; // Less aggressive = more backoff
						var backoffAngle = approachAngle + Math.PI + (Math.random() - 0.5) * Math.PI * backoffIntensity;
						aiTargetRotation = backoffAngle;
						aiPower = 0.2 + enemyCar.tacticalPersonality.aggressiveness * 0.2;
						aiTargetVelocity = maxSpeed * aiPower * 0.6;
					} else if (aiDistance > enemyCar.tacticalPersonality.preferredAttackDistance * 2) {
						// Far away - check for straight line opportunity
						if (isAlignedWithTarget) {
							// Can go straight - use maximum speed for efficiency
							aiTargetRotation = straightLineAngle;
							aiPower = Math.min(1, aiDistance / 600);
							aiTargetVelocity = maxSpeed * aiPower * 1.0; // Full speed when aligned
						} else {
							// Need to turn first - direct approach at normal speed
							aiTargetRotation = approachAngle;
							aiPower = Math.min(1, aiDistance / 600);
							aiTargetVelocity = maxSpeed * aiPower * 0.95;
						}
					} else {
						// Medium distance - check alignment for speed boost
						if (isAlignedWithTarget && aiDistance > 200) {
							// Aligned and far enough - go straight at higher speed
							aiTargetRotation = straightLineAngle;
							aiPower = Math.min(1, aiDistance / 500);
							aiTargetVelocity = maxSpeed * aiPower * 0.98; // Near full speed when aligned
						} else {
							// Not aligned or too close - slight offset to avoid head-on collision
							var offsetAngle = (Math.random() - 0.5) * Math.PI * 0.2; // ±18 degrees
							aiTargetRotation = approachAngle + offsetAngle;
							aiPower = Math.min(1, aiDistance / 500);
							aiTargetVelocity = maxSpeed * aiPower * 0.92;
						}
					}
					// Update last distance for next frame
					enemyCar.lastPlayerDistance = aiDistance;
					break;
				case 1:
					// Varied pursuit - intimidation mode: follows like direct but maintains safe distance to scare
					if (enemyCar.circlingDetected && enemyCar.circlingCooldown <= 0) {
						// Break out of circling pattern
						var escapeAngle = approachAngle + Math.PI * 0.75 * (Math.random() < 0.5 ? 1 : -1);
						aiTargetRotation = escapeAngle;
						aiPower = 0.8;
						aiTargetVelocity = maxSpeed * aiPower * 0.85;
						enemyCar.circlingCooldown = 120; // 2 second cooldown
					} else if (aiDistance < enemyCar.tacticalPersonality.preferredIntimidationDistance * 1.2) {
						// Individual intimidation range based on car's personality
						var intimidationDistance = enemyCar.tacticalPersonality.preferredIntimidationDistance;
						var distanceError = aiDistance - intimidationDistance;
						var toleranceRange = 20 + enemyCar.tacticalPersonality.patience * 20; // 20-40 pixel tolerance based on patience
						if (Math.abs(distanceError) < toleranceRange) {
							// Perfect intimidation distance - behavior based on individual aggressiveness
							var aggressiveness = enemyCar.tacticalPersonality.aggressiveness;
							var weavingIntensity = Math.PI * 0.1 + aggressiveness * Math.PI * 0.1; // More aggressive = more weaving
							var intimidationOffset = Math.sin(LK.ticks * (0.03 + aggressiveness * 0.04)) * weavingIntensity;
							aiTargetRotation = approachAngle + intimidationOffset;
							aiPower = 0.5 + aggressiveness * 0.3;
							aiTargetVelocity = maxSpeed * aiPower * (0.8 + aggressiveness * 0.1);
							// Check if target is stationary and we're intimidating
							var currentTargetSpeed = 0;
							if (enemyCar.currentTarget) {
								currentTargetSpeed = Math.sqrt(enemyCar.currentTarget.velocityX * enemyCar.currentTarget.velocityX + enemyCar.currentTarget.velocityY * enemyCar.currentTarget.velocityY);
							}
							if (currentTargetSpeed < maxSpeed * 0.05 && typeof enemyCar.intimidationCount !== "undefined") {
								// Mark intimidation as successful - duration based on patience
								if (typeof enemyCar.intimidationTimer === "undefined") enemyCar.intimidationTimer = 0;
								enemyCar.intimidationTimer++;
								// Patient cars intimidate longer, impatient cars intimidate briefly
								var intimidationDuration = 60 + enemyCar.tacticalPersonality.patience * 120; // 1-3 seconds based on patience
								if (enemyCar.intimidationTimer > intimidationDuration) {
									enemyCar.intimidationCount++;
									enemyCar.intimidationTimer = 0;
									// Force strategy recalculation
									enemyCar.followStrategyTimer = enemyCar.followStrategyDuration + 1;
								}
							}
						} else if (distanceError < 0) {
							// Too close - back off behavior based on aggressiveness
							var backoffIntensity = 0.2 + (1 - enemyCar.tacticalPersonality.aggressiveness) * 0.2; // Less aggressive = back off more
							aiTargetRotation = approachAngle + Math.PI + (Math.random() - 0.5) * Math.PI * backoffIntensity;
							aiPower = 0.3 + enemyCar.tacticalPersonality.aggressiveness * 0.2;
							aiTargetVelocity = maxSpeed * aiPower * 0.6;
						} else {
							// Too far - approach for intimidation with individual aggressiveness
							aiTargetRotation = approachAngle;
							aiPower = 0.6 + enemyCar.tacticalPersonality.aggressiveness * 0.3;
							aiTargetVelocity = maxSpeed * aiPower * (0.85 + enemyCar.tacticalPersonality.aggressiveness * 0.1);
						}
					} else {
						// Long range - approach based on individual preferred attack distance
						var approachIntensity = Math.min(1, aiDistance / (enemyCar.tacticalPersonality.preferredAttackDistance * 2));
						aiTargetRotation = approachAngle;
						aiPower = approachIntensity * (0.7 + enemyCar.tacticalPersonality.aggressiveness * 0.3);
						aiTargetVelocity = maxSpeed * aiPower * (0.9 + enemyCar.tacticalPersonality.aggressiveness * 0.05);
					}
					break;
				case 2:
					// Ambush - predict target's future position with smarter interception
					var targetVelX = 0;
					var targetVelY = 0;
					var targetPosX = enemyCar.x; // fallback position
					var targetPosY = enemyCar.y;
					if (enemyCar.currentTarget) {
						targetVelX = enemyCar.currentTarget.velocityX;
						targetVelY = enemyCar.currentTarget.velocityY;
						targetPosX = enemyCar.currentTarget.object.x;
						targetPosY = enemyCar.currentTarget.object.y;
					}
					var targetSpeed = Math.sqrt(targetVelX * targetVelX + targetVelY * targetVelY);
					if (enemyCar.circlingDetected && enemyCar.circlingCooldown <= 0) {
						// Break circling with wide flanking maneuver
						var flankAngle = approachAngle + Math.PI * 0.8 * (Math.random() < 0.5 ? 1 : -1);
						aiTargetRotation = flankAngle;
						aiPower = 0.9;
						aiTargetVelocity = maxSpeed * aiPower * 0.9;
						enemyCar.circlingCooldown = 180; // 3 second cooldown
					} else if (aiDistance < 150) {
						// Close range - position for optimal angle of attack
						var attackAngle = approachAngle + Math.PI * 0.4 * (angleDiff > 0 ? 1 : -1);
						aiTargetRotation = attackAngle;
						aiPower = 0.7;
						aiTargetVelocity = maxSpeed * aiPower * 0.8;
					} else {
						// Long range interception
						var predictionTime = Math.min(2.5, aiDistance / maxSpeed * 0.9);
						var interceptX = targetPosX + targetVelX * predictionTime;
						var interceptY = targetPosY + targetVelY * predictionTime;
						// Keep predicted position within bounds
						interceptX = Math.max(80, Math.min(1968, interceptX));
						interceptY = Math.max(80, Math.min(2106, interceptY));
						// Calculate optimal interception approach
						var interceptDeltaX = interceptX - enemyCar.x;
						var interceptDeltaY = interceptY - enemyCar.y;
						var interceptDistance = Math.sqrt(interceptDeltaX * interceptDeltaX + interceptDeltaY * interceptDeltaY);
						// Lead the target slightly based on relative speeds
						var speedRatio = (enemyCar.aiCurrentVelocity || 0) / Math.max(0.1, targetSpeed);
						var leadAdjustment = (1 - speedRatio) * 0.3;
						aiTargetRotation = Math.atan2(interceptDeltaX, -interceptDeltaY);
						aiPower = Math.min(1, interceptDistance / 700);
						var speedBoost = Math.min(0.2, targetSpeed / maxSpeed * 0.2);
						aiTargetVelocity = maxSpeed * aiPower * (0.85 + speedBoost + leadAdjustment);
					}
					break;
			}
			// Blend in edge avoidance with follow behavior
			if (edgeAvoidanceX !== 0 || edgeAvoidanceY !== 0) {
				// Calculate edge avoidance angle
				var avoidanceAngle = Math.atan2(edgeAvoidanceX, -edgeAvoidanceY);
				// Blend the target rotation with avoidance (stronger when closer to edges)
				var avoidanceWeight = Math.min(0.7, Math.abs(edgeAvoidanceX) + Math.abs(edgeAvoidanceY));
				var followWeight = 1 - avoidanceWeight;
				// Convert angles to vectors for blending
				var followVecX = Math.sin(aiTargetRotation) * followWeight;
				var followVecY = -Math.cos(aiTargetRotation) * followWeight;
				var avoidVecX = Math.sin(avoidanceAngle) * avoidanceWeight;
				var avoidVecY = -Math.cos(avoidanceAngle) * avoidanceWeight;
				// Combine and convert back to angle
				var blendedVecX = followVecX + avoidVecX;
				var blendedVecY = followVecY + avoidVecY;
				aiTargetRotation = Math.atan2(blendedVecX, -blendedVecY);
			}
		} else {
			// Enhanced Free roam logic with dynamic behavior patterns
			if (typeof enemyCar.freeRoamAngle === "undefined" || enemyCar.aiModeTimer === 0) {
				// Initialize free roam variables
				enemyCar.freeRoamAngle = Math.random() * Math.PI * 2;
				enemyCar.freeRoamSpeed = maxSpeed * (0.4 + Math.random() * 0.4); // 40%-80% of max speed
				enemyCar.freeRoamTimer = 0;
				enemyCar.freeRoamDirectionTimer = 0;
				enemyCar.freeRoamPattern = Math.floor(Math.random() * 3); // 0=wander, 1=circular, 2=aggressive
			}
			// Dynamic free roam behavior - change direction periodically for more interesting movement
			enemyCar.freeRoamTimer++;
			enemyCar.freeRoamDirectionTimer++;
			// Change direction every 1-3 seconds based on pattern
			var directionChangeInterval;
			switch (enemyCar.freeRoamPattern) {
				case 0:
					// Wander pattern - gentle direction changes
					directionChangeInterval = 90 + Math.floor(Math.random() * 60); // 1.5-2.5 seconds
					break;
				case 1:
					// Circular pattern - more frequent turns
					directionChangeInterval = 45 + Math.floor(Math.random() * 30); // 0.75-1.25 seconds
					break;
				case 2:
					// Aggressive pattern - quick direction changes
					directionChangeInterval = 30 + Math.floor(Math.random() * 40); // 0.5-1.17 seconds
					break;
			}
			if (enemyCar.freeRoamDirectionTimer > directionChangeInterval) {
				enemyCar.freeRoamDirectionTimer = 0;
				// Different behavior patterns for more variety
				switch (enemyCar.freeRoamPattern) {
					case 0:
						// Wander - small random direction changes
						var angleChange = (Math.random() - 0.5) * Math.PI * 0.6; // ±54 degrees
						enemyCar.freeRoamAngle += angleChange;
						enemyCar.freeRoamSpeed = maxSpeed * (0.3 + Math.random() * 0.4);
						break;
					case 1:
						// Circular - tends to turn in one direction
						if (typeof enemyCar.circularDirection === "undefined") {
							enemyCar.circularDirection = Math.random() < 0.5 ? -1 : 1;
						}
						var circularTurn = enemyCar.circularDirection * (Math.PI * 0.3 + Math.random() * Math.PI * 0.4); // 54-126 degrees
						enemyCar.freeRoamAngle += circularTurn;
						enemyCar.freeRoamSpeed = maxSpeed * (0.5 + Math.random() * 0.3);
						// Occasionally reverse direction
						if (Math.random() < 0.15) enemyCar.circularDirection *= -1;
						break;
					case 2:
						// Aggressive - sharp turns and speed changes
						var aggressiveTurn = (Math.random() - 0.5) * Math.PI * 1.2; // ±108 degrees
						enemyCar.freeRoamAngle += aggressiveTurn;
						enemyCar.freeRoamSpeed = maxSpeed * (0.6 + Math.random() * 0.3);
						break;
				}
			}
			// Add some target awareness even in free roam - occasionally look towards closest target
			var closestTarget = null;
			var closestDistance = Infinity;
			// Check distance to player
			var playerDistance = Math.sqrt((carPlayer.x - enemyCar.x) * (carPlayer.x - enemyCar.x) + (carPlayer.y - enemyCar.y) * (carPlayer.y - enemyCar.y));
			if (playerDistance < closestDistance) {
				closestDistance = playerDistance;
				closestTarget = carPlayer;
			}
			// Check distance to other enemy cars
			for (var nearIdx = 0; nearIdx < enemyCars.length; nearIdx++) {
				if (nearIdx !== aiCarIdx) {
					var otherCar = enemyCars[nearIdx];
					var otherDistance = Math.sqrt((otherCar.x - enemyCar.x) * (otherCar.x - enemyCar.x) + (otherCar.y - enemyCar.y) * (otherCar.y - enemyCar.y));
					if (otherDistance < closestDistance) {
						closestDistance = otherDistance;
						closestTarget = otherCar;
					}
				}
			}
			var targetInfluence = 0;
			if (closestTarget && closestDistance < 400) {
				// Within 400 pixels
				// Closer target = more influence on direction
				targetInfluence = Math.max(0, (400 - closestDistance) / 400 * 0.3); // Up to 30% influence
				if (Math.random() < 0.02) {
					// 2% chance per frame to look at closest target
					var targetAngle = Math.atan2(closestTarget.x - enemyCar.x, -(closestTarget.y - enemyCar.y));
					// Blend current angle with target angle
					var currentVecX = Math.sin(enemyCar.freeRoamAngle);
					var currentVecY = -Math.cos(enemyCar.freeRoamAngle);
					var targetVecX = Math.sin(targetAngle) * targetInfluence;
					var targetVecY = -Math.cos(targetAngle) * targetInfluence;
					var blendedVecX = currentVecX * (1 - targetInfluence) + targetVecX;
					var blendedVecY = currentVecY * (1 - targetInfluence) + targetVecY;
					enemyCar.freeRoamAngle = Math.atan2(blendedVecX, -blendedVecY);
				}
			}
			aiTargetRotation = enemyCar.freeRoamAngle;
			aiPower = 1;
			aiTargetVelocity = enemyCar.freeRoamSpeed;
			// Apply edge avoidance to free roam mode with stronger influence
			if (edgeAvoidanceX !== 0 || edgeAvoidanceY !== 0) {
				// Calculate edge avoidance angle
				var avoidanceAngle = Math.atan2(edgeAvoidanceX, -edgeAvoidanceY);
				// Much stronger avoidance in free roam mode
				var avoidanceWeight = Math.min(0.85, (Math.abs(edgeAvoidanceX) + Math.abs(edgeAvoidanceY)) * 1.5);
				var roamWeight = 1 - avoidanceWeight;
				// Convert angles to vectors for blending
				var roamVecX = Math.sin(aiTargetRotation) * roamWeight;
				var roamVecY = -Math.cos(aiTargetRotation) * roamWeight;
				var avoidVecX = Math.sin(avoidanceAngle) * avoidanceWeight;
				var avoidVecY = -Math.cos(avoidanceAngle) * avoidanceWeight;
				// Combine and convert back to angle
				var blendedVecX = roamVecX + avoidVecX;
				var blendedVecY = roamVecY + avoidVecY;
				aiTargetRotation = Math.atan2(blendedVecX, -blendedVecY);
				// Update the free roam angle to new direction after avoidance
				enemyCar.freeRoamAngle = aiTargetRotation;
			}
		}
		// AI: Smoothly rotate enemy car towards target
		if (typeof enemyCar.aiRotation === "undefined") enemyCar.aiRotation = enemyCar.rotation;
		var aiRotationDelta = aiTargetRotation - enemyCar.aiRotation;
		while (aiRotationDelta > Math.PI) aiRotationDelta -= 2 * Math.PI;
		while (aiRotationDelta < -Math.PI) aiRotationDelta += 2 * Math.PI;
		var aiRotationSpeed = baseRotationSpeed * 0.7; // Slightly slower turning for AI
		enemyCar.aiRotation += aiRotationDelta * aiRotationSpeed;
		enemyCar.rotation = enemyCar.aiRotation;
		// AI: Velocity logic
		if (typeof enemyCar.aiCurrentVelocity === "undefined") enemyCar.aiCurrentVelocity = 0;
		if (aiPower > 0.1) {
			// Accelerate
			var aiVelocityDiff = aiTargetVelocity - enemyCar.aiCurrentVelocity;
			var aiAccelerationRate = 0.003;
			enemyCar.aiCurrentVelocity += aiVelocityDiff * aiAccelerationRate;
		} else {
			// Decelerate
			var aiDecelerationRate = 0.045;
			enemyCar.aiCurrentVelocity *= 1 - aiDecelerationRate;
			if (Math.abs(enemyCar.aiCurrentVelocity) < 0.1) enemyCar.aiCurrentVelocity = 0;
		}
		enemyCar.aiCurrentVelocity = Math.min(enemyCar.aiCurrentVelocity, maxSpeed * 0.92);
		// AI: Intended movement direction
		var aiIntendedMoveX = Math.sin(enemyCar.aiRotation) * enemyCar.aiCurrentVelocity;
		var aiIntendedMoveY = -Math.cos(enemyCar.aiRotation) * enemyCar.aiCurrentVelocity;
		// AI: Drift physics for enemy car
		if (typeof enemyCar.aiVelocityX === "undefined") enemyCar.aiVelocityX = 0;
		if (typeof enemyCar.aiVelocityY === "undefined") enemyCar.aiVelocityY = 0;
		enemyCar.aiVelocityX = enemyCar.aiVelocityX * driftFactor + aiIntendedMoveX * gripFactor;
		enemyCar.aiVelocityY = enemyCar.aiVelocityY * driftFactor + aiIntendedMoveY * gripFactor;
		// AI: Apply friction and update position
		enemyCar.aiVelocityX *= 0.98;
		enemyCar.aiVelocityY *= 0.98;
		enemyCar.x += enemyCar.aiVelocityX + enemyCar.velocityX;
		enemyCar.y += enemyCar.aiVelocityY + enemyCar.velocityY;
		// --- End Enemy Car AI Movement Logic ---
		// Apply smooth braking to enemy car after collision for more natural deceleration
		if (!enemyCar.smoothBraking) enemyCar.smoothBraking = false;
		if (!enemyCar.brakeFrames) enemyCar.brakeFrames = 0;
		var currentEnemySpeed = Math.sqrt(enemyCar.velocityX * enemyCar.velocityX + enemyCar.velocityY * enemyCar.velocityY);
		// If enemy car was just launched (high velocity), enable smooth braking
		if (currentEnemySpeed > maxSpeed * 0.6 && !enemyCar.smoothBraking) {
			enemyCar.smoothBraking = true;
			enemyCar.brakeFrames = 0;
		}
		// Smooth braking logic: apply a gentle, progressive friction for a short period after being launched
		if (enemyCar.smoothBraking) {
			// Braking lasts for 18 frames (~0.3s at 60fps)
			var brakeDuration = 18;
			var brakeProgress = Math.min(1, enemyCar.brakeFrames / brakeDuration);
			// Start with gentle friction, increase to normal friction
			var minFriction = 0.96;
			var maxFriction = 0.92 - currentEnemySpeed / maxSpeed * 0.05;
			var frictionRate = minFriction + (maxFriction - minFriction) * brakeProgress;
			enemyCar.velocityX *= frictionRate;
			enemyCar.velocityY *= frictionRate;
			enemyCar.brakeFrames++;
			if (enemyCar.brakeFrames >= brakeDuration) {
				enemyCar.smoothBraking = false;
			}
		} else if (currentEnemySpeed > 0.1) {
			// Normal progressive friction
			var frictionRate = 0.92 - currentEnemySpeed / maxSpeed * 0.05; // More friction at higher speeds
			enemyCar.velocityX *= frictionRate;
			enemyCar.velocityY *= frictionRate;
		} else {
			// Stop very slow movement to prevent endless drift
			enemyCar.velocityX = 0;
			enemyCar.velocityY = 0;
		}
		// Keep enemy car within bounds
		var enemyHalfWidth = 32;
		var enemyHalfHeight = 47;
		if (enemyCar.x < enemyHalfWidth) {
			enemyCar.x = enemyHalfWidth;
			enemyCar.velocityX = -enemyCar.velocityX * 0.6;
		}
		if (enemyCar.x > 2048 - enemyHalfWidth) {
			enemyCar.x = 2048 - enemyHalfWidth;
			enemyCar.velocityX = -enemyCar.velocityX * 0.6;
		}
		if (enemyCar.y < enemyHalfHeight) {
			enemyCar.y = enemyHalfHeight;
			enemyCar.velocityY = -enemyCar.velocityY * 0.6;
		}
		if (enemyCar.y > 2186 - enemyHalfHeight) {
			enemyCar.y = 2186 - enemyHalfHeight;
			enemyCar.velocityY = -enemyCar.velocityY * 0.6;
		}
	}
	// --- End Enemy Cars AI Movement Logic ---
	// Add collision detection between enemy cars (optimized - only check every 3rd frame)
	if (LK.ticks % 3 === 0) {
		for (var carA = 0; carA < enemyCars.length; carA++) {
			for (var carB = carA + 1; carB < enemyCars.length; carB++) {
				var enemyCarA = enemyCars[carA];
				var enemyCarB = enemyCars[carB];
				// Initialize collision tracking if not exists
				if (!enemyCarA.enemyColliding) enemyCarA.enemyColliding = [];
				if (!enemyCarB.enemyColliding) enemyCarB.enemyColliding = [];
				while (enemyCarA.enemyColliding.length <= carB) enemyCarA.enemyColliding.push(false);
				while (enemyCarB.enemyColliding.length <= carA) enemyCarB.enemyColliding.push(false);
				// Calculate collision boxes for both cars
				var carALeft = enemyCarA.x - enemyCollisionWidth / 2;
				var carARight = enemyCarA.x + enemyCollisionWidth / 2;
				var carATop = enemyCarA.y - enemyCollisionHeight / 2;
				var carABottom = enemyCarA.y + enemyCollisionHeight / 2;
				var carBLeft = enemyCarB.x - enemyCollisionWidth / 2;
				var carBRight = enemyCarB.x + enemyCollisionWidth / 2;
				var carBTop = enemyCarB.y - enemyCollisionHeight / 2;
				var carBBottom = enemyCarB.y + enemyCollisionHeight / 2;
				// Check for collision
				var currentColliding = !(carARight < carBLeft || carALeft > carBRight || carABottom < carBTop || carATop > carBBottom);
				if (!enemyCarA.enemyColliding[carB] && currentColliding) {
					// Collision just started - apply physics
					var carASpeedX = (enemyCarA.aiVelocityX || 0) + (enemyCarA.velocityX || 0);
					var carASpeedY = (enemyCarA.aiVelocityY || 0) + (enemyCarA.velocityY || 0);
					var carBSpeedX = (enemyCarB.aiVelocityX || 0) + (enemyCarB.velocityX || 0);
					var carBSpeedY = (enemyCarB.aiVelocityY || 0) + (enemyCarB.velocityY || 0);
					var carASpeed = Math.sqrt(carASpeedX * carASpeedX + carASpeedY * carASpeedY);
					var carBSpeed = Math.sqrt(carBSpeedX * carBSpeedX + carBSpeedY * carBSpeedY);
					// Calculate collision direction
					var collisionDeltaX = enemyCarB.x - enemyCarA.x;
					var collisionDeltaY = enemyCarB.y - enemyCarA.y;
					var collisionDistance = Math.sqrt(collisionDeltaX * collisionDeltaX + collisionDeltaY * collisionDeltaY);
					// Normalize collision direction
					if (collisionDistance > 0) {
						collisionDeltaX /= collisionDistance;
						collisionDeltaY /= collisionDistance;
					}
					// Calculate momentum transfer using conservation of momentum
					var totalMass = enemyCarA.weight + enemyCarB.weight;
					var massRatioA1 = (enemyCarA.weight - enemyCarB.weight) / totalMass;
					var massRatioA2 = 2 * enemyCarB.weight / totalMass;
					var massRatioB1 = 2 * enemyCarA.weight / totalMass;
					var massRatioB2 = (enemyCarB.weight - enemyCarA.weight) / totalMass;
					// Energy loss calculation
					var relativeSpeed = Math.max(carASpeed, carBSpeed);
					var minLoss = 0.15;
					var maxLoss = 0.55;
					var speedNorm = Math.min(1, relativeSpeed / maxSpeed);
					var energyLoss = minLoss + (maxLoss - minLoss) * speedNorm;
					var restitution = 1 - energyLoss;
					// Separate cars to prevent overlap
					var separationDistance = 75;
					var halfSeparation = separationDistance / 2;
					enemyCarA.x = enemyCarA.x - collisionDeltaX * halfSeparation;
					enemyCarA.y = enemyCarA.y - collisionDeltaY * halfSeparation;
					enemyCarB.x = enemyCarB.x + collisionDeltaX * halfSeparation;
					enemyCarB.y = enemyCarB.y + collisionDeltaY * halfSeparation;
					// Calculate new velocities for car A
					var carAImpactX = carASpeedX * massRatioA1 + carBSpeedX * massRatioA2;
					var carAImpactY = carASpeedY * massRatioA1 + carBSpeedY * massRatioA2;
					enemyCarA.velocityX = carAImpactX * restitution;
					enemyCarA.velocityY = carAImpactY * restitution;
					// Calculate new velocities for car B
					var carBImpactX = carASpeedX * massRatioB1 + carBSpeedX * massRatioB2;
					var carBImpactY = carASpeedY * massRatioB1 + carBSpeedY * massRatioB2;
					enemyCarB.velocityX = carBImpactX * restitution;
					enemyCarB.velocityY = carBImpactY * restitution;
					// Add directional push based on collision
					var pushIntensity = (carASpeed + carBSpeed) * (0.4 + 0.4 * speedNorm);
					var carAPushRatio = enemyCarB.weight / totalMass;
					var carBPushRatio = enemyCarA.weight / totalMass;
					enemyCarA.velocityX += -collisionDeltaX * pushIntensity * carAPushRatio * 0.6;
					enemyCarA.velocityY += -collisionDeltaY * pushIntensity * carAPushRatio * 0.6;
					enemyCarB.velocityX += collisionDeltaX * pushIntensity * carBPushRatio * 0.6;
					enemyCarB.velocityY += collisionDeltaY * pushIntensity * carBPushRatio * 0.6;
					// Visual feedback for collision
					LK.effects.flashObject(enemyCarA, 0xffaa00, 300);
					LK.effects.flashObject(enemyCarB, 0xffaa00, 300);
				}
				// Update collision tracking
				enemyCarA.enemyColliding[carB] = currentColliding;
				enemyCarB.enemyColliding[carA] = currentColliding;
			}
		}
	}
	// Update speed display
	var totalSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
	speedText.setText('Speed: ' + Math.round(totalSpeed));
};

===================================================================
--- original.js
+++ change.js
@@ -139,8 +139,43 @@
 	// Calculate rotation to face the center
 	var deltaX = centerX - enemyCar.x;
 	var deltaY = centerY - enemyCar.y;
 	enemyCar.rotation = Math.atan2(deltaX, -deltaY); // Rotation to face center
+	// Give each AI car individual tactical preferences and personality
+	enemyCar.tacticalPersonality = {
+		// Primary strategy preference probabilities (0-1)
+		directPreference: 0.2 + Math.random() * 0.6,
+		// 0.2-0.8 preference for direct pursuit
+		ambushPreference: 0.1 + Math.random() * 0.7,
+		// 0.1-0.8 preference for ambush tactics  
+		intimidationPreference: 0.1 + Math.random() * 0.5,
+		// 0.1-0.6 preference for intimidation
+		// Speed-based tactical preferences
+		slowTargetStrategy: Math.floor(Math.random() * 3),
+		// 0=direct, 1=intimidate, 2=ambush for slow targets
+		fastTargetStrategy: Math.floor(Math.random() * 3),
+		// 0=direct, 1=intimidate, 2=ambush for fast targets
+		mediumTargetStrategy: Math.floor(Math.random() * 3),
+		// 0=direct, 1=intimidate, 2=ambush for medium targets
+		// Individual behavioral traits
+		aggressiveness: 0.3 + Math.random() * 0.7,
+		// 0.3-1.0 how aggressive this car is
+		patience: 0.2 + Math.random() * 0.8,
+		// 0.2-1.0 how long car sticks to one strategy
+		adaptability: 0.1 + Math.random() * 0.9,
+		// 0.1-1.0 how quickly car changes strategies
+		// Individual strategy duration preferences (in frames)
+		minStrategyDuration: 30 + Math.floor(Math.random() * 60),
+		// 0.5-1.5 seconds minimum
+		maxStrategyDuration: 90 + Math.floor(Math.random() * 180),
+		// 1.5-4.5 seconds maximum
+		// Personal distance preferences
+		preferredAttackDistance: 100 + Math.random() * 200,
+		// 100-300 preferred distance for attacks
+		preferredIntimidationDistance: 120 + Math.random() * 100,
+		// 120-220 preferred intimidation distance
+		personalSpaceRadius: 80 + Math.random() * 120 // 80-200 personal space when maneuvering
+	};
 	// Add to array and scene
 	enemyCars.push(enemyCar);
 	gameplayBackground.addChild(enemyCar);
 }
@@ -765,9 +800,9 @@
 				enemyCar.followStrategy = 0;
 				enemyCar.followStrategyTimer = 0;
 				enemyCar.followStrategyDuration = 60 + Math.floor(Math.random() * 60); // 1-2 seconds for adaptive strategy
 			}
-			// Adaptive strategy selection based on target speed and position
+			// Individual strategy selection based on each car's unique personality
 			enemyCar.followStrategyTimer++;
 			if (enemyCar.followStrategyTimer > enemyCar.followStrategyDuration) {
 				// Calculate target speed for strategy selection
 				var targetSpeed = 0;
@@ -781,72 +816,95 @@
 				var angleDifference = Math.abs(relativeAngle - enemyAngle);
 				while (angleDifference > Math.PI) angleDifference = 2 * Math.PI - angleDifference;
 				var isTargetAhead = angleDifference < Math.PI / 3; // Within 60 degrees ahead
 				var isTargetBehind = angleDifference > 2 * Math.PI / 3; // More than 120 degrees behind
-				// Strategy selection with strong speed-based preferences:
-				// DIRECT: Strongly preferred for slow targets (< 30% speed)
-				// VARIED: For medium speeds and tactical situations  
-				// AMBUSH: Strongly preferred for fast targets (> 60% speed)
+				// Individual strategy selection based on car's tactical personality
+				var personality = enemyCar.tacticalPersonality;
+				var strategyScores = [0, 0, 0]; // [direct, intimidation, ambush]
+				// Base preference scores from personality
+				strategyScores[0] = personality.directPreference;
+				strategyScores[1] = personality.intimidationPreference;
+				strategyScores[2] = personality.ambushPreference;
+				// Modify scores based on target speed and individual preferences
 				if (targetSpeedRatio < 0.3) {
-					// Slow target - strongly prefer direct pursuit (85% chance)
-					if (Math.random() < 0.85) {
-						enemyCar.followStrategy = 0;
-					} else {
-						enemyCar.followStrategy = 1; // Occasional varied approach
-					}
+					// Slow target - use individual slow target strategy preference
+					var preferredStrategy = personality.slowTargetStrategy;
+					strategyScores[preferredStrategy] += 0.4;
 				} else if (targetSpeedRatio > 0.6) {
-					// Fast target - strongly prefer ambush tactics (80% chance)
-					if (Math.random() < 0.8) {
-						enemyCar.followStrategy = 2; // Ambush for interception
+					// Fast target - use individual fast target strategy preference
+					var preferredStrategy = personality.fastTargetStrategy;
+					strategyScores[preferredStrategy] += 0.4;
+				} else {
+					// Medium speed target - use individual medium target strategy preference
+					var preferredStrategy = personality.mediumTargetStrategy;
+					strategyScores[preferredStrategy] += 0.3;
+				}
+				// Situational modifiers based on individual traits
+				if (targetSpeedRatio < 0.05) {
+					// Target is nearly stationary - intimidation gets bonus for patient cars
+					if (personality.patience > 0.6) {
+						strategyScores[1] += 0.3; // Patient cars prefer intimidation
+						// Initialize intimidation counter if not set
+						if (typeof enemyCar.intimidationCount === "undefined") {
+							enemyCar.intimidationCount = 0;
+							enemyCar.maxIntimidations = Math.floor(personality.patience * 4) + 1; // 1-4 based on patience
+						}
+						// Check if we've completed enough intimidations
+						if (enemyCar.intimidationCount >= enemyCar.maxIntimidations) {
+							strategyScores[0] += 0.5; // Switch to direct after enough intimidation
+							strategyScores[1] -= 0.3;
+						}
 					} else {
-						enemyCar.followStrategy = 1; // Occasional varied approach
+						strategyScores[0] += 0.4; // Impatient cars go direct
 					}
-				} else if (targetSpeedRatio < 0.05) {
-					// Target is nearly stationary - use intimidation system
-					// Initialize intimidation counter if not set
-					if (typeof enemyCar.intimidationCount === "undefined") {
-						enemyCar.intimidationCount = 0;
-						enemyCar.maxIntimidations = 1 + Math.floor(Math.random() * 3); // 1-3 intimidations
-					}
-					// Check if we've completed enough intimidations
-					if (enemyCar.intimidationCount >= enemyCar.maxIntimidations) {
-						// Switch to direct attack after intimidating enough times
-						enemyCar.followStrategy = 0; // Direct pursuit for attack
+				}
+				// Distance-based individual preferences
+				if (relativeDistance < personality.preferredAttackDistance) {
+					// Within preferred attack range - aggressive cars prefer direct
+					strategyScores[0] += personality.aggressiveness * 0.3;
+				} else if (relativeDistance > personality.preferredAttackDistance * 2) {
+					// Far away - adaptive cars prefer ambush
+					strategyScores[2] += personality.adaptability * 0.3;
+				}
+				// Positional modifiers with individual traits
+				if (isTargetBehind || relativeDistance < personality.personalSpaceRadius) {
+					// Target behind or in personal space - use intimidation for positioning
+					strategyScores[1] += 0.2;
+				} else if (isTargetAhead && relativeDistance < personality.preferredAttackDistance * 1.5) {
+					// Target ahead and in preferred range
+					if (personality.aggressiveness > 0.6) {
+						strategyScores[0] += 0.3; // Aggressive cars go direct
 					} else {
-						// Use varied mode for intimidation (doesn't seek collision)
-						enemyCar.followStrategy = 1; // Intimidation approach
+						strategyScores[1] += 0.2; // Less aggressive cars intimidate first
 					}
-				} else if (isTargetBehind || relativeDistance < 200) {
-					// Target behind or very close - use varied approach for positioning
-					enemyCar.followStrategy = 1;
-				} else if (isTargetAhead && relativeDistance < 300) {
-					// Target ahead and close - direct pursuit
-					enemyCar.followStrategy = 0;
-				} else {
-					// Medium speed, medium distance - balanced approach favoring strategy based on speed
-					if (targetSpeedRatio > 0.45) {
-						// Lean towards ambush for faster medium speeds
-						enemyCar.followStrategy = Math.random() < 0.6 ? 2 : 1;
-					} else {
-						// Lean towards direct for slower medium speeds  
-						enemyCar.followStrategy = Math.random() < 0.6 ? 0 : 1;
+				}
+				// Select strategy with highest score (with some randomness based on adaptability)
+				var maxScore = Math.max(strategyScores[0], strategyScores[1], strategyScores[2]);
+				var candidateStrategies = [];
+				for (var s = 0; s < 3; s++) {
+					if (strategyScores[s] >= maxScore - personality.adaptability * 0.2) {
+						candidateStrategies.push(s);
 					}
 				}
-				// Adjust duration based on selected strategy
+				enemyCar.followStrategy = candidateStrategies[Math.floor(Math.random() * candidateStrategies.length)];
+				// Individual strategy duration based on personality
+				var baseDuration = personality.minStrategyDuration + (personality.maxStrategyDuration - personality.minStrategyDuration) * personality.patience;
+				var strategyMultiplier = 1.0;
 				switch (enemyCar.followStrategy) {
 					case 0:
-						// Direct - shorter duration for quick decisions
-						enemyCar.followStrategyDuration = 45 + Math.floor(Math.random() * 45);
+						// Direct - duration affected by aggressiveness (aggressive = shorter bursts)
+						strategyMultiplier = 1.2 - personality.aggressiveness * 0.4;
 						break;
 					case 1:
-						// Varied - medium duration for tactical maneuvering
-						enemyCar.followStrategyDuration = 60 + Math.floor(Math.random() * 60);
+						// Intimidation - duration affected by patience (patient = longer intimidation)
+						strategyMultiplier = 0.8 + personality.patience * 0.6;
 						break;
 					case 2:
-						// Ambush - longer duration for prediction accuracy
-						enemyCar.followStrategyDuration = 90 + Math.floor(Math.random() * 60);
+						// Ambush - duration affected by adaptability (adaptive = longer planning)
+						strategyMultiplier = 1.0 + personality.adaptability * 0.5;
 						break;
 				}
+				enemyCar.followStrategyDuration = Math.floor(baseDuration * strategyMultiplier);
 				enemyCar.followStrategyTimer = 0;
 			}
 			// Calculate base values using current target instead of always player (optimized)
 			if (enemyCar.currentTarget) {
@@ -974,15 +1032,16 @@
 					while (angleToTarget > Math.PI) angleToTarget -= 2 * Math.PI;
 					while (angleToTarget < -Math.PI) angleToTarget += 2 * Math.PI;
 					// AI is considered "aligned" if facing within 15 degrees of target
 					var isAlignedWithTarget = Math.abs(angleToTarget) < Math.PI / 12; // 15 degrees
-					if (aiDistance < 120 && !enemyCar.circlingDetected) {
-						// Too close - back off slightly at an angle
-						var backoffAngle = approachAngle + Math.PI + (Math.random() - 0.5) * Math.PI * 0.5;
+					if (aiDistance < enemyCar.tacticalPersonality.preferredAttackDistance * 0.6 && !enemyCar.circlingDetected) {
+						// Too close for this car's preferred attack style - back off based on aggressiveness
+						var backoffIntensity = 0.3 + (1 - enemyCar.tacticalPersonality.aggressiveness) * 0.4; // Less aggressive = more backoff
+						var backoffAngle = approachAngle + Math.PI + (Math.random() - 0.5) * Math.PI * backoffIntensity;
 						aiTargetRotation = backoffAngle;
-						aiPower = 0.3;
+						aiPower = 0.2 + enemyCar.tacticalPersonality.aggressiveness * 0.2;
 						aiTargetVelocity = maxSpeed * aiPower * 0.6;
-					} else if (aiDistance > 500) {
+					} else if (aiDistance > enemyCar.tacticalPersonality.preferredAttackDistance * 2) {
 						// Far away - check for straight line opportunity
 						if (isAlignedWithTarget) {
 							// Can go straight - use maximum speed for efficiency
 							aiTargetRotation = straightLineAngle;
@@ -1020,52 +1079,57 @@
 						aiTargetRotation = escapeAngle;
 						aiPower = 0.8;
 						aiTargetVelocity = maxSpeed * aiPower * 0.85;
 						enemyCar.circlingCooldown = 120; // 2 second cooldown
-					} else if (aiDistance < 180) {
-						// Intimidation range - follow closely but maintain threatening distance
-						// Stay close enough to scare but far enough to avoid collision
-						var intimidationDistance = 150; // Target distance for intimidation
+					} else if (aiDistance < enemyCar.tacticalPersonality.preferredIntimidationDistance * 1.2) {
+						// Individual intimidation range based on car's personality
+						var intimidationDistance = enemyCar.tacticalPersonality.preferredIntimidationDistance;
 						var distanceError = aiDistance - intimidationDistance;
-						if (Math.abs(distanceError) < 30) {
-							// Perfect intimidation distance - match player direction but slightly offset
-							var intimidationOffset = Math.sin(LK.ticks * 0.05) * (Math.PI * 0.15); // Subtle weaving ±27 degrees
+						var toleranceRange = 20 + enemyCar.tacticalPersonality.patience * 20; // 20-40 pixel tolerance based on patience
+						if (Math.abs(distanceError) < toleranceRange) {
+							// Perfect intimidation distance - behavior based on individual aggressiveness
+							var aggressiveness = enemyCar.tacticalPersonality.aggressiveness;
+							var weavingIntensity = Math.PI * 0.1 + aggressiveness * Math.PI * 0.1; // More aggressive = more weaving
+							var intimidationOffset = Math.sin(LK.ticks * (0.03 + aggressiveness * 0.04)) * weavingIntensity;
 							aiTargetRotation = approachAngle + intimidationOffset;
-							aiPower = 0.7;
-							aiTargetVelocity = maxSpeed * aiPower * 0.85;
+							aiPower = 0.5 + aggressiveness * 0.3;
+							aiTargetVelocity = maxSpeed * aiPower * (0.8 + aggressiveness * 0.1);
 							// Check if target is stationary and we're intimidating
 							var currentTargetSpeed = 0;
 							if (enemyCar.currentTarget) {
 								currentTargetSpeed = Math.sqrt(enemyCar.currentTarget.velocityX * enemyCar.currentTarget.velocityX + enemyCar.currentTarget.velocityY * enemyCar.currentTarget.velocityY);
 							}
 							if (currentTargetSpeed < maxSpeed * 0.05 && typeof enemyCar.intimidationCount !== "undefined") {
-								// Mark intimidation as successful after maintaining perfect distance for a while
+								// Mark intimidation as successful - duration based on patience
 								if (typeof enemyCar.intimidationTimer === "undefined") enemyCar.intimidationTimer = 0;
 								enemyCar.intimidationTimer++;
-								// Complete intimidation after 2 seconds of perfect positioning
-								if (enemyCar.intimidationTimer > 120) {
+								// Patient cars intimidate longer, impatient cars intimidate briefly
+								var intimidationDuration = 60 + enemyCar.tacticalPersonality.patience * 120; // 1-3 seconds based on patience
+								if (enemyCar.intimidationTimer > intimidationDuration) {
 									enemyCar.intimidationCount++;
 									enemyCar.intimidationTimer = 0;
 									// Force strategy recalculation
 									enemyCar.followStrategyTimer = enemyCar.followStrategyDuration + 1;
 								}
 							}
 						} else if (distanceError < 0) {
-							// Too close - back off while still facing player
-							aiTargetRotation = approachAngle + Math.PI + (Math.random() - 0.5) * Math.PI * 0.3;
-							aiPower = 0.4;
+							// Too close - back off behavior based on aggressiveness
+							var backoffIntensity = 0.2 + (1 - enemyCar.tacticalPersonality.aggressiveness) * 0.2; // Less aggressive = back off more
+							aiTargetRotation = approachAngle + Math.PI + (Math.random() - 0.5) * Math.PI * backoffIntensity;
+							aiPower = 0.3 + enemyCar.tacticalPersonality.aggressiveness * 0.2;
 							aiTargetVelocity = maxSpeed * aiPower * 0.6;
 						} else {
-							// Too far - approach for intimidation
+							// Too far - approach for intimidation with individual aggressiveness
 							aiTargetRotation = approachAngle;
-							aiPower = 0.8;
-							aiTargetVelocity = maxSpeed * aiPower * 0.9;
+							aiPower = 0.6 + enemyCar.tacticalPersonality.aggressiveness * 0.3;
+							aiTargetVelocity = maxSpeed * aiPower * (0.85 + enemyCar.tacticalPersonality.aggressiveness * 0.1);
 						}
 					} else {
-						// Long range - approach like direct pursuit for intimidation setup
+						// Long range - approach based on individual preferred attack distance
+						var approachIntensity = Math.min(1, aiDistance / (enemyCar.tacticalPersonality.preferredAttackDistance * 2));
 						aiTargetRotation = approachAngle;
-						aiPower = Math.min(1, aiDistance / 500);
-						aiTargetVelocity = maxSpeed * aiPower * 0.92;
+						aiPower = approachIntensity * (0.7 + enemyCar.tacticalPersonality.aggressiveness * 0.3);
+						aiTargetVelocity = maxSpeed * aiPower * (0.9 + enemyCar.tacticalPersonality.aggressiveness * 0.05);
 					}
 					break;
 				case 2:
 					// Ambush - predict target's future position with smarter interception