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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('roadLane', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bulletGraphics.scaleX = 0.2;
	bulletGraphics.scaleY = 0.3;
	bulletGraphics.tint = 0xffff00;
	self.speed = 15;
	self.update = function () {
		self.y -= self.speed;
	};
	return self;
});
var EnemyVehicle = Container.expand(function (vehicleType) {
	var self = Container.call(this);
	var assetId = vehicleType || 'enemyCar';
	var vehicleGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.vehicleType = vehicleType;
	self.speed = 8 + Math.random() * 4; // Random speed between 8-12
	self.hasTriggeredNearMiss = false;
	// Set health based on vehicle type
	if (vehicleType === 'motorcycle') {
		self.health = 1;
	} else if (vehicleType === 'truck') {
		self.health = 5;
	} else {
		self.health = 2; // enemyCar default
	}
	self.maxHealth = self.health;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var PlayerCar = Container.expand(function () {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('playerCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.targetX = self.x;
	self.laneWidth = 340;
	self.lanes = [-510, -170, 170, 510]; // 4 lanes positioned across screen - same as enemy vehicles
	self.update = function () {
		// Smooth movement towards target position
		var diff = self.targetX - self.x;
		self.x += diff * 0.3; // Increased responsiveness
	};
	self.moveTo = function (targetX) {
		// Find closest lane (adjusted for screen center offset like enemy vehicles)
		var closestLane = 1024 + self.lanes[0];
		var minDistance = Math.abs(targetX - closestLane);
		for (var i = 1; i < self.lanes.length; i++) {
			var adjustedLane = 1024 + self.lanes[i];
			var distance = Math.abs(targetX - adjustedLane);
			if (distance < minDistance) {
				minDistance = distance;
				closestLane = adjustedLane;
			}
		}
		self.targetX = closestLane;
	};
	return self;
});
var PoliceCar = Container.expand(function () {
	var self = Container.call(this);
	var policeGraphics = self.attachAsset('policeCar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	policeGraphics.tint = 0x0066ff; // Blue tint for police car
	self.speed = 6;
	self.hasPlayedSiren = false;
	self.update = function () {
		self.y += self.speed;
		// Play siren sound once when police car appears
		if (!self.hasPlayedSiren && self.y > -100) {
			LK.getSound('siren').play();
			self.hasPlayedSiren = true;
		}
		// Clear enemy vehicles in front of police car
		for (var i = enemyVehicles.length - 1; i >= 0; i--) {
			var enemy = enemyVehicles[i];
			var horizontalDistance = Math.abs(enemy.x - self.x);
			var verticalDistance = enemy.y - self.y;
			// If enemy is in front of police car and in same lane
			if (horizontalDistance < 100 && verticalDistance > -200 && verticalDistance < 400) {
				// Create explosion effect for cleared enemy
				tween(enemy, {
					scaleX: 1.5,
					scaleY: 1.5,
					tint: 0x0066ff,
					alpha: 0
				}, {
					duration: 300,
					easing: tween.easeOut
				});
				// Remove enemy immediately
				enemy.destroy();
				enemyVehicles.splice(i, 1);
			}
		}
	};
	return self;
});
var RoadLane = Container.expand(function () {
	var self = Container.call(this);
	var laneGraphics = self.attachAsset('roadLane', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12;
	self.update = function () {
		self.y += self.speed;
		// Reset position when off screen
		if (self.y > 2732 + 100) {
			self.y = -100;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c3e50
});

/**** 
* Game Code
****/ 
// Game variables
var playerCar;
var enemyVehicles = [];
var roadLanes = [];
var bullets = [];
var gameSpeed = 1;
var distanceScore = 0;
var nearMissBonus = 0;
var spawnTimer = 0;
var speedIncreaseTimer = 0;
var dragStartX = 0;
var isDragging = false;
var playerHealth = 5;
var shootTimer = 0;
var leftButtonCooldown = false;
var rightButtonCooldown = false;
var leftButtonPressCount = 0;
var rightButtonPressCount = 0;
var policeCars = [];
var policeSpawnTimer = 0;
var policeSpawnCooldown = 0;
function spawnPoliceCar() {
	// Only spawn if no police cars are currently active and cooldown is over
	if (policeCars.length === 0 && policeSpawnCooldown <= 0) {
		var lanes = [-510, -170, 170, 510];
		var selectedLane = lanes[Math.floor(Math.random() * lanes.length)];
		var policeCar = new PoliceCar();
		policeCar.x = 1024 + selectedLane;
		policeCar.y = -200;
		policeCar.speed = (6 + Math.random() * 2) * gameSpeed;
		policeCars.push(policeCar);
		game.addChild(policeCar);
		// Set cooldown before next police car can spawn (30-60 seconds)
		policeSpawnCooldown = 1800 + Math.random() * 1800;
	}
}
// Create road lanes
for (var i = 0; i < 3; i++) {
	var lane1 = new RoadLane();
	lane1.x = -85;
	lane1.y = i * 300 - 200;
	roadLanes.push(lane1);
	game.addChild(lane1);
	var lane2 = new RoadLane();
	lane2.x = 85;
	lane2.y = i * 300 - 200;
	roadLanes.push(lane2);
	game.addChild(lane2);
	var lane3 = new RoadLane();
	lane3.x = 255;
	lane3.y = i * 300 - 200;
	roadLanes.push(lane3);
	game.addChild(lane3);
}
// Create player car
playerCar = new PlayerCar();
playerCar.x = 1024 + 170; // Start in third lane (same lane system as enemies)
playerCar.y = 2200; // Near bottom of screen
playerCar.targetX = playerCar.x;
game.addChild(playerCar);
// Create score display
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create speed display
var speedTxt = new Text2('Speed: 1x', {
	size: 60,
	fill: 0xFFFFFF
});
speedTxt.anchor.set(1, 0);
speedTxt.y = 100;
LK.gui.topRight.addChild(speedTxt);
// Create health display
var healthTxt = new Text2('Health: ❤❤❤❤❤', {
	size: 60,
	fill: 0xff0000
});
healthTxt.anchor.set(0, 0);
healthTxt.y = 100;
LK.gui.topLeft.addChild(healthTxt);
// Create left shoot button
var leftShootButton = new Text2('🔫', {
	size: 130,
	fill: 0xffff00
});
leftShootButton.anchor.set(0, 1);
leftShootButton.x = 50;
leftShootButton.y = -50;
LK.gui.bottomLeft.addChild(leftShootButton);
// Create right shoot button
var rightShootButton = new Text2('🔫', {
	size: 130,
	fill: 0xffff00
});
rightShootButton.anchor.set(1, 1);
rightShootButton.x = -50;
rightShootButton.y = -50;
LK.gui.bottomRight.addChild(rightShootButton);
function spawnEnemyVehicle() {
	var vehicleTypes = ['enemyCar', 'truck', 'motorcycle'];
	var lanes = [-510, -170, 170, 510];
	// Spawn 1-3 vehicles at once with higher probability of multiple spawns
	var numVehicles = Math.random() < 0.7 ? Math.random() < 0.4 ? 3 : 2 : 1;
	var usedLanes = [];
	for (var v = 0; v < numVehicles; v++) {
		var randomType = vehicleTypes[Math.floor(Math.random() * vehicleTypes.length)];
		var enemy = new EnemyVehicle(randomType);
		// Select random lane that hasn't been used
		var availableLanes = lanes.filter(function (lane) {
			return usedLanes.indexOf(lane) === -1;
		});
		if (availableLanes.length > 0) {
			var selectedLane = availableLanes[Math.floor(Math.random() * availableLanes.length)];
			usedLanes.push(selectedLane);
			enemy.x = 1024 + selectedLane;
			enemy.y = -200 - v * 150; // Stagger spawn positions slightly
			// Adjust speed based on game speed with more variation
			enemy.speed = (8 + Math.random() * 6) * gameSpeed;
			enemyVehicles.push(enemy);
			game.addChild(enemy);
		}
	}
}
function checkCollisions() {
	// Check enemy-to-enemy collisions first
	for (var i = enemyVehicles.length - 1; i >= 0; i--) {
		var enemy1 = enemyVehicles[i];
		for (var j = i - 1; j >= 0; j--) {
			var enemy2 = enemyVehicles[j];
			if (enemy1.intersects(enemy2)) {
				// Create explosion effect
				tween(enemy1, {
					scaleX: 2,
					scaleY: 2,
					tint: 0xff4444,
					alpha: 0
				}, {
					duration: 300,
					easing: tween.easeOut
				});
				tween(enemy2, {
					scaleX: 2,
					scaleY: 2,
					tint: 0xff4444,
					alpha: 0
				}, {
					duration: 300,
					easing: tween.easeOut
				});
				// Damage nearby vehicles
				for (var k = enemyVehicles.length - 1; k >= 0; k--) {
					var nearbyEnemy = enemyVehicles[k];
					if (nearbyEnemy !== enemy1 && nearbyEnemy !== enemy2) {
						var distance1 = Math.sqrt(Math.pow(nearbyEnemy.x - enemy1.x, 2) + Math.pow(nearbyEnemy.y - enemy1.y, 2));
						var distance2 = Math.sqrt(Math.pow(nearbyEnemy.x - enemy2.x, 2) + Math.pow(nearbyEnemy.y - enemy2.y, 2));
						if (distance1 < 200 || distance2 < 200) {
							tween(nearbyEnemy, {
								tint: 0xff8888
							}, {
								duration: 200,
								onFinish: function onFinish() {
									tween(nearbyEnemy, {
										tint: 0xffffff
									}, {
										duration: 200
									});
								}
							});
							nearbyEnemy.speed *= 0.7; // Slow down damaged vehicle
						}
					}
				}
				LK.getSound('crash').play();
				LK.effects.flashObject(enemy1, 0xff0000, 300);
				LK.effects.flashObject(enemy2, 0xff0000, 300);
				// Remove collided vehicles after animation
				LK.setTimeout(function () {
					enemy1.destroy();
					enemy2.destroy();
					var index1 = enemyVehicles.indexOf(enemy1);
					var index2 = enemyVehicles.indexOf(enemy2);
					if (index1 !== -1) {
						enemyVehicles.splice(index1, 1);
					}
					if (index2 !== -1) {
						var newIndex2 = enemyVehicles.indexOf(enemy2);
						if (newIndex2 !== -1) {
							enemyVehicles.splice(newIndex2, 1);
						}
					}
				}, 300);
				return;
			}
		}
	}
	for (var i = enemyVehicles.length - 1; i >= 0; i--) {
		var enemy = enemyVehicles[i];
		// Check collision with player
		if (playerCar.intersects(enemy)) {
			playerHealth--;
			updateHealthDisplay();
			LK.getSound('crash').play();
			LK.effects.flashScreen(0xff0000, 500);
			// Remove enemy that hit player
			enemy.destroy();
			enemyVehicles.splice(i, 1);
			if (playerHealth <= 0) {
				LK.showGameOver();
				return;
			}
		}
		// Check for near miss bonus
		var distance = Math.abs(enemy.x - playerCar.x);
		var verticalDistance = Math.abs(enemy.y - playerCar.y);
		if (!enemy.hasTriggeredNearMiss && distance < 150 && verticalDistance < 200 && enemy.y > playerCar.y - 100) {
			enemy.hasTriggeredNearMiss = true;
			nearMissBonus += 10;
			LK.getSound('nearMiss').play();
			// Flash effect for near miss
			tween(enemy, {
				tint: 0xffff00
			}, {
				duration: 200,
				onFinish: function onFinish() {
					tween(enemy, {
						tint: 0xffffff
					}, {
						duration: 200
					});
				}
			});
		}
		// Remove off-screen enemies
		if (enemy.y > 2732 + 200) {
			enemy.destroy();
			enemyVehicles.splice(i, 1);
		}
	}
}
function updateScore() {
	distanceScore += 1;
	var totalScore = distanceScore + nearMissBonus;
	LK.setScore(totalScore);
	scoreTxt.setText('Score: ' + totalScore);
}
function updateHealthDisplay() {
	var hearts = '';
	for (var i = 0; i < playerHealth; i++) {
		hearts += '❤';
	}
	for (var i = playerHealth; i < 5; i++) {
		hearts += '🤍';
	}
	healthTxt.setText('Health: ' + hearts);
}
function increaseGameSpeed() {
	gameSpeed += 0.002;
	if (gameSpeed > 3) {
		gameSpeed = 3;
	}
	speedTxt.setText('Speed: ' + gameSpeed.toFixed(1) + 'x');
	// Update road lane speeds
	for (var i = 0; i < roadLanes.length; i++) {
		roadLanes[i].speed = 12 * gameSpeed;
	}
}
function fireWeapon(buttonSide) {
	// Check if the specific button is on cooldown (only applies after 10 presses)
	if (buttonSide === 'left' && leftButtonPressCount >= 10 && leftButtonCooldown || buttonSide === 'right' && rightButtonPressCount >= 10 && rightButtonCooldown) {
		return; // Don't fire if on cooldown
	}
	// Increment press counter
	if (buttonSide === 'left') {
		leftButtonPressCount++;
	} else if (buttonSide === 'right') {
		rightButtonPressCount++;
	}
	// Fire left bullet
	var bulletLeft = new Bullet();
	bulletLeft.x = playerCar.x - 30; // Offset to the left
	bulletLeft.y = playerCar.y - 100;
	bullets.push(bulletLeft);
	game.addChild(bulletLeft);
	// Fire right bullet
	var bulletRight = new Bullet();
	bulletRight.x = playerCar.x + 30; // Offset to the right
	bulletRight.y = playerCar.y - 100;
	bullets.push(bulletRight);
	game.addChild(bulletRight);
	// Set cooldown for the pressed button (only after 10 presses)
	if (buttonSide === 'left' && leftButtonPressCount >= 10) {
		leftButtonCooldown = true;
		// Reset cooldown after 1 second and restart the cycle
		LK.setTimeout(function () {
			leftButtonCooldown = false;
			leftButtonPressCount = 0; // Reset counter to restart the cycle
		}, 1000);
	} else if (buttonSide === 'right' && rightButtonPressCount >= 10) {
		rightButtonCooldown = true;
		// Reset cooldown after 1 second and restart the cycle
		LK.setTimeout(function () {
			rightButtonCooldown = false;
			rightButtonPressCount = 0; // Reset counter to restart the cycle
		}, 1000);
	}
}
// Add left shoot button event handler
leftShootButton.down = function (x, y, obj) {
	fireWeapon('left');
	// Visual feedback for button press
	tween(leftShootButton, {
		scaleX: 1.2,
		scaleY: 1.2,
		tint: 0xff8888
	}, {
		duration: 100,
		onFinish: function onFinish() {
			tween(leftShootButton, {
				scaleX: 1,
				scaleY: 1,
				tint: leftButtonPressCount >= 10 && leftButtonCooldown ? 0x888888 : 0xffff00
			}, {
				duration: 100
			});
		}
	});
};
// Add right shoot button event handler
rightShootButton.down = function (x, y, obj) {
	fireWeapon('right');
	// Visual feedback for button press
	tween(rightShootButton, {
		scaleX: 1.2,
		scaleY: 1.2,
		tint: 0xff8888
	}, {
		duration: 100,
		onFinish: function onFinish() {
			tween(rightShootButton, {
				scaleX: 1,
				scaleY: 1,
				tint: rightButtonPressCount >= 10 && rightButtonCooldown ? 0x888888 : 0xffff00
			}, {
				duration: 100
			});
		}
	});
};
// Touch controls
game.down = function (x, y, obj) {
	isDragging = true;
	dragStartX = x;
	// Remove automatic weapon firing from general touch
	// Fixed distance movement per tap
	var moveDistance = 340; // Distance to move per tap (one lane width)
	var currentX = playerCar.x;
	var newTargetX;
	// Determine direction based on touch position relative to car
	if (x < currentX) {
		// Tap on left side - move left
		newTargetX = currentX - moveDistance;
	} else {
		// Tap on right side - move right
		newTargetX = currentX + moveDistance;
	}
	// Clamp to lane boundaries (same as enemy vehicles)
	if (newTargetX < 1024 + -510) {
		newTargetX = 1024 + -510;
	} // Left boundary for leftmost lane
	if (newTargetX > 1024 + 510) {
		newTargetX = 1024 + 510;
	} // Right boundary for rightmost lane
	playerCar.moveTo(newTargetX);
	// Force immediate movement
	playerCar.targetX = newTargetX;
};
game.move = function (x, y, obj) {
	// Remove continuous movement - car should only move once per touch
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Main game loop
game.update = function () {
	// Spawn enemy vehicles
	spawnTimer++;
	var spawnRate = Math.max(30 - gameSpeed * 3, 20);
	if (spawnTimer >= spawnRate) {
		spawnEnemyVehicle();
		spawnTimer = 0;
	}
	// Increase game speed over time
	speedIncreaseTimer++;
	if (speedIncreaseTimer >= 60) {
		// Every second
		increaseGameSpeed();
		speedIncreaseTimer = 0;
	}
	// Bullet shooting is now manual - controlled by touch/tap
	// Update bullets and check bullet collisions
	for (var b = bullets.length - 1; b >= 0; b--) {
		var bullet = bullets[b];
		// Remove off-screen bullets - increased range
		if (bullet.y < -500) {
			bullet.destroy();
			bullets.splice(b, 1);
			continue;
		}
		// Check bullet collision with enemies
		for (var e = enemyVehicles.length - 1; e >= 0; e--) {
			var enemy = enemyVehicles[e];
			if (bullet.intersects(enemy)) {
				// Damage enemy
				enemy.health--;
				// Visual damage feedback
				tween(enemy, {
					tint: 0xff8888
				}, {
					duration: 100,
					onFinish: function onFinish() {
						if (enemy.health > 0) {
							tween(enemy, {
								tint: 0xffffff
							}, {
								duration: 100
							});
						}
					}
				});
				// Remove bullet
				bullet.destroy();
				bullets.splice(b, 1);
				// Check if enemy is destroyed
				if (enemy.health <= 0) {
					// Create explosion with area damage
					tween(enemy, {
						scaleX: 2,
						scaleY: 2,
						tint: 0xff4444,
						alpha: 0
					}, {
						duration: 400,
						easing: tween.easeOut
					});
					// Area damage to nearby vehicles
					for (var k = enemyVehicles.length - 1; k >= 0; k--) {
						var nearbyEnemy = enemyVehicles[k];
						if (nearbyEnemy !== enemy) {
							var distance = Math.sqrt(Math.pow(nearbyEnemy.x - enemy.x, 2) + Math.pow(nearbyEnemy.y - enemy.y, 2));
							if (distance < 250) {
								nearbyEnemy.health--;
								tween(nearbyEnemy, {
									tint: 0xff6666
								}, {
									duration: 150,
									onFinish: function onFinish() {
										if (nearbyEnemy.health > 0) {
											tween(nearbyEnemy, {
												tint: 0xffffff
											}, {
												duration: 150
											});
										}
									}
								});
								nearbyEnemy.speed *= 0.8;
							}
						}
					}
					// Player takes damage if too close
					var playerDistance = Math.sqrt(Math.pow(playerCar.x - enemy.x, 2) + Math.pow(playerCar.y - enemy.y, 2));
					if (playerDistance < 300) {
						playerHealth--;
						updateHealthDisplay();
						LK.effects.flashScreen(0xff0000, 200);
						if (playerHealth <= 0) {
							LK.showGameOver();
							return;
						}
					}
					LK.getSound('crash').play();
					// Remove destroyed enemy after animation
					LK.setTimeout(function () {
						enemy.destroy();
						var index = enemyVehicles.indexOf(enemy);
						if (index !== -1) {
							enemyVehicles.splice(index, 1);
						}
					}, 400);
				}
				break;
			}
		}
	}
	// Police car spawning logic
	policeSpawnTimer++;
	if (policeSpawnCooldown > 0) {
		policeSpawnCooldown--;
	}
	// Random chance to spawn police car (every 5-10 seconds when available)
	if (policeSpawnTimer >= 300 + Math.random() * 300) {
		if (Math.random() < 0.3) {
			// 30% chance when timer is ready
			spawnPoliceCar();
		}
		policeSpawnTimer = 0;
	}
	// Update and manage police cars
	for (var p = policeCars.length - 1; p >= 0; p--) {
		var policeCar = policeCars[p];
		// Remove off-screen police cars
		if (policeCar.y > 2732 + 200) {
			policeCar.destroy();
			policeCars.splice(p, 1);
		}
	}
	// Update score
	updateScore();
	// Check collisions
	checkCollisions();
};

===================================================================
--- original.js
+++ change.js
@@ -74,8 +74,49 @@
 		self.targetX = closestLane;
 	};
 	return self;
 });
+var PoliceCar = Container.expand(function () {
+	var self = Container.call(this);
+	var policeGraphics = self.attachAsset('policeCar', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	policeGraphics.tint = 0x0066ff; // Blue tint for police car
+	self.speed = 6;
+	self.hasPlayedSiren = false;
+	self.update = function () {
+		self.y += self.speed;
+		// Play siren sound once when police car appears
+		if (!self.hasPlayedSiren && self.y > -100) {
+			LK.getSound('siren').play();
+			self.hasPlayedSiren = true;
+		}
+		// Clear enemy vehicles in front of police car
+		for (var i = enemyVehicles.length - 1; i >= 0; i--) {
+			var enemy = enemyVehicles[i];
+			var horizontalDistance = Math.abs(enemy.x - self.x);
+			var verticalDistance = enemy.y - self.y;
+			// If enemy is in front of police car and in same lane
+			if (horizontalDistance < 100 && verticalDistance > -200 && verticalDistance < 400) {
+				// Create explosion effect for cleared enemy
+				tween(enemy, {
+					scaleX: 1.5,
+					scaleY: 1.5,
+					tint: 0x0066ff,
+					alpha: 0
+				}, {
+					duration: 300,
+					easing: tween.easeOut
+				});
+				// Remove enemy immediately
+				enemy.destroy();
+				enemyVehicles.splice(i, 1);
+			}
+		}
+	};
+	return self;
+});
 var RoadLane = Container.expand(function () {
 	var self = Container.call(this);
 	var laneGraphics = self.attachAsset('roadLane', {
 		anchorX: 0.5,
@@ -119,8 +160,26 @@
 var leftButtonCooldown = false;
 var rightButtonCooldown = false;
 var leftButtonPressCount = 0;
 var rightButtonPressCount = 0;
+var policeCars = [];
+var policeSpawnTimer = 0;
+var policeSpawnCooldown = 0;
+function spawnPoliceCar() {
+	// Only spawn if no police cars are currently active and cooldown is over
+	if (policeCars.length === 0 && policeSpawnCooldown <= 0) {
+		var lanes = [-510, -170, 170, 510];
+		var selectedLane = lanes[Math.floor(Math.random() * lanes.length)];
+		var policeCar = new PoliceCar();
+		policeCar.x = 1024 + selectedLane;
+		policeCar.y = -200;
+		policeCar.speed = (6 + Math.random() * 2) * gameSpeed;
+		policeCars.push(policeCar);
+		game.addChild(policeCar);
+		// Set cooldown before next police car can spawn (30-60 seconds)
+		policeSpawnCooldown = 1800 + Math.random() * 1800;
+	}
+}
 // Create road lanes
 for (var i = 0; i < 3; i++) {
 	var lane1 = new RoadLane();
 	lane1.x = -85;
@@ -580,8 +639,30 @@
 				break;
 			}
 		}
 	}
+	// Police car spawning logic
+	policeSpawnTimer++;
+	if (policeSpawnCooldown > 0) {
+		policeSpawnCooldown--;
+	}
+	// Random chance to spawn police car (every 5-10 seconds when available)
+	if (policeSpawnTimer >= 300 + Math.random() * 300) {
+		if (Math.random() < 0.3) {
+			// 30% chance when timer is ready
+			spawnPoliceCar();
+		}
+		policeSpawnTimer = 0;
+	}
+	// Update and manage police cars
+	for (var p = policeCars.length - 1; p >= 0; p--) {
+		var policeCar = policeCars[p];
+		// Remove off-screen police cars
+		if (policeCar.y > 2732 + 200) {
+			policeCar.destroy();
+			policeCars.splice(p, 1);
+		}
+	}
 	// Update score
 	updateScore();
 	// Check collisions
 	checkCollisions();