/**** 
* 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 enemy car in gameplay area at random position
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:
		// 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
gameplayBackground.addChild(enemyCar);
// Create UI background - 1/5 of screen height (bottom portion)
var uiBackground = game.attachAsset('uiBg', {
	x: 0,
	y: 2186,
	anchorX: 0,
	anchorY: 0
});
// Create speed display text
var speedText = new Text2('Speed: 0', {
	size: 60,
	fill: 0x000000
});
speedText.anchor.set(0, 0.5);
speedText.x = 50;
speedText.y = 2459; // Center vertically in UI area
game.addChild(speedText);
// Create joystickBG centered in UI background
var joystickBG = uiBackground.attachAsset('JoystickBG', {
	x: 1024,
	// Center horizontally in UI
	y: 273,
	// Center vertically in UI (546/2 = 273)
	anchorX: 0.5,
	anchorY: 0.5
});
// Create point object that will follow touch position
var point = null;
// Create JoystickPoinr that will follow point position smoothly
var joystickPoinr = game.attachAsset('JoystickPoinr', {
	x: 1024,
	y: 2459,
	anchorX: 0.5,
	anchorY: 0.5
});
// Variables for smooth movement
var targetX = 1024;
var targetY = 2459;
var smoothSpeed = 0.2;
// Variables for smooth rotation
var targetRotation = 0;
var baseRotationSpeed = 0.052;
// Variables for realistic car physics
var currentVelocity = 0;
var acceleration = 0.16;
var deceleration = 0.44;
var maxSpeed = 15.36;
// 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
	// --- Lógica de choque por peso con la pared para el auto jugador ---
	if (carPlayer.x < halfCarWidth) {
		carPlayer.x = halfCarWidth;
		// Impacto con la pared izquierda
		var impactVelocity = Math.abs(velocityX);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3;
		// Ajuste de rebote según peso
		var wallRestitution = 0.45 + 0.15 * (1.5 - playerCarWeight); // Menos rebote si es más pesado
		velocityX = -velocityX * wallRestitution * (1 - energyLoss);
		velocityY *= 0.8;
		// Efecto visual
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	if (carPlayer.x > 2048 - halfCarWidth) {
		carPlayer.x = 2048 - halfCarWidth;
		// Impacto con la pared derecha
		var impactVelocity = Math.abs(velocityX);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3;
		var wallRestitution = 0.45 + 0.15 * (1.5 - playerCarWeight);
		velocityX = -velocityX * wallRestitution * (1 - energyLoss);
		velocityY *= 0.8;
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	if (carPlayer.y < halfCarHeight) {
		carPlayer.y = halfCarHeight;
		// Impacto con la pared superior
		var impactVelocity = Math.abs(velocityY);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3;
		var wallRestitution = 0.45 + 0.15 * (1.5 - playerCarWeight);
		velocityY = -velocityY * wallRestitution * (1 - energyLoss);
		velocityX *= 0.8;
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	if (carPlayer.y > 2186 - halfCarHeight) {
		carPlayer.y = 2186 - halfCarHeight;
		// Impacto con la pared inferior
		var impactVelocity = Math.abs(velocityY);
		var energyLoss = 0.4 + impactVelocity / maxSpeed * 0.3;
		var wallRestitution = 0.45 + 0.15 * (1.5 - playerCarWeight);
		velocityY = -velocityY * wallRestitution * (1 - energyLoss);
		velocityX *= 0.8;
		if (impactVelocity > impactThreshold) {
			LK.effects.flashObject(carPlayer, 0xff4444, 200);
		}
	}
	// Particle system for car exhaust
	if (!game.particles) {
		game.particles = [];
	}
	// Generate particles proportional to current velocity (from very little to much)
	var totalSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
	var speedRatio = totalSpeed / maxSpeed; // 0 to 1 ratio of current speed to max speed
	// Calculate particle generation frequency based on speed (more speed = more frequent particles)
	var particleFrequency = Math.max(1, Math.floor(8 - speedRatio * 6)); // From every 8 ticks (slow) to every 2 ticks (fast)
	if (speedRatio > 0.05 && LK.ticks % particleFrequency === 0) {
		// Only generate particles when moving at least 5% of max speed
		// Calculate particle spawn position further behind the car (20% closer for smaller car)
		var particleSpawnX = carPlayer.x - Math.sin(carPlayer.rotation) * 55;
		var particleSpawnY = carPlayer.y + Math.cos(carPlayer.rotation) * 55;
		// Create particles based on speed - more speed = more particles
		var particleCount = Math.max(1, Math.floor(speedRatio * 3)); // 1-3 particles based on speed ratio
		for (var p = 0; p < particleCount; p++) {
			// Create new particle
			var newParticle = new Particle();
			newParticle.x = particleSpawnX + (Math.random() - 0.5) * 19.2; // 20% smaller spawn area
			newParticle.y = particleSpawnY + (Math.random() - 0.5) * 19.2;
			// Add velocity variation based on car movement (20% reduced for smaller scale)
			newParticle.velocityX += -velocityX * 0.12 + (Math.random() - 0.5) * 2.4;
			newParticle.velocityY += -velocityY * 0.12 + (Math.random() - 0.5) * 2.4;
			game.particles.push(newParticle);
			gameplayBackground.addChild(newParticle);
			// Tween particle color for variety
			var colors = [0xffffff, 0xcccccc, 0x999999, 0x666666];
			var randomColor = colors[Math.floor(Math.random() * colors.length)];
			tween(newParticle.children[0], {
				tint: randomColor
			}, {
				duration: 100
			});
		}
	}
	// Update and clean up particles
	for (var i = game.particles.length - 1; i >= 0; i--) {
		var particle = game.particles[i];
		if (particle.age >= particle.lifespan) {
			particle.destroy();
			game.particles.splice(i, 1);
		}
	}
	// Check collision between player car and enemy car using smaller collision boxes
	if (!carPlayer.lastColliding) carPlayer.lastColliding = false;
	// Define smaller collision boxes (approximately 60% of actual asset size for more precise collision)
	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
	// Calculate collision boxes centers
	var playerLeft = carPlayer.x - playerCollisionWidth / 2;
	var playerRight = carPlayer.x + playerCollisionWidth / 2;
	var playerTop = carPlayer.y - playerCollisionHeight / 2;
	var playerBottom = carPlayer.y + playerCollisionHeight / 2;
	var enemyLeft = enemyCar.x - enemyCollisionWidth / 2;
	var enemyRight = enemyCar.x + enemyCollisionWidth / 2;
	var enemyTop = enemyCar.y - enemyCollisionHeight / 2;
	var enemyBottom = enemyCar.y + enemyCollisionHeight / 2;
	// More precise collision detection using smaller bounding boxes
	var currentColliding = !(playerRight < enemyLeft || playerLeft > enemyRight || playerBottom < enemyTop || playerTop > enemyBottom);
	if (!carPlayer.lastColliding && currentColliding) {
		// Collision just started - calculate collision physics with mass
		var playerSpeed = Math.sqrt(velocityX * velocityX + velocityY * velocityY);
		var enemySpeed = Math.sqrt(enemyCar.velocityX * enemyCar.velocityX + enemyCar.velocityY * enemyCar.velocityY);
		// Calculate collision direction (from player car to enemy car)
		var collisionDeltaX = enemyCar.x - carPlayer.x;
		var collisionDeltaY = enemyCar.y - carPlayer.y;
		var collisionDistance = Math.sqrt(collisionDeltaX * collisionDeltaX + collisionDeltaY * collisionDeltaY);
		// Normalize collision direction
		if (collisionDistance > 0) {
			collisionDeltaX /= collisionDistance;
			collisionDeltaY /= collisionDistance;
		}
		// --- Improved: Use more natural collision response with velocity projection and less abrupt separation ---
		// Project velocities onto collision normal and tangent
		var normalX = collisionDeltaX;
		var normalY = collisionDeltaY;
		var tangentX = -normalY;
		var tangentY = normalX;
		// Player projections
		var v1n = velocityX * normalX + velocityY * normalY;
		var v1t = velocityX * tangentX + velocityY * tangentY;
		// Enemy projections
		var v2n = enemyCar.velocityX * normalX + enemyCar.velocityY * normalY;
		var v2t = enemyCar.velocityX * tangentX + enemyCar.velocityY * tangentY;
		// Conservation of momentum for normal component (1D elastic collision with restitution)
		var restitution = 0.62; // Lower restitution for softer, more natural bounce (was 1-energyLoss)
		var v1nAfter = (v1n * (playerCarWeight - enemyCar.weight) + 2 * enemyCar.weight * v2n) / (playerCarWeight + enemyCar.weight);
		var v2nAfter = (v2n * (enemyCar.weight - playerCarWeight) + 2 * playerCarWeight * v1n) / (playerCarWeight + enemyCar.weight);
		v1nAfter *= restitution;
		v2nAfter *= restitution;
		// Recompose velocities
		velocityX = v1nAfter * normalX + v1t * tangentX;
		velocityY = v1nAfter * normalY + v1t * tangentY;
		enemyCar.velocityX = v2nAfter * normalX + v2t * tangentX;
		enemyCar.velocityY = v2nAfter * normalY + v2t * tangentY;
		// Separate cars to prevent overlap (gentle separation)
		var separationDistance = 54; // Even less than before for subtle push
		carPlayer.x = enemyCar.x - normalX * separationDistance;
		carPlayer.y = enemyCar.y - normalY * separationDistance;
		// Add a small extra push based on impact speed, but much less exaggerated
		var impactSpeed = Math.abs(v1n - v2n);
		var pushFactor = 0.22; // Lowered for subtlety
		velocityX += -normalX * impactSpeed * pushFactor * (enemyCar.weight / (playerCarWeight + enemyCar.weight));
		velocityY += -normalY * impactSpeed * pushFactor * (enemyCar.weight / (playerCarWeight + enemyCar.weight));
		enemyCar.velocityX += normalX * impactSpeed * pushFactor * (playerCarWeight / (playerCarWeight + enemyCar.weight));
		enemyCar.velocityY += normalY * impactSpeed * pushFactor * (playerCarWeight / (playerCarWeight + enemyCar.weight));
		// Visual feedback for collision
		LK.effects.flashObject(carPlayer, 0xff0000, 500);
		// Reduce player acceleration and velocity proportionally to current speed for more natural and realistic collision
		var speedLossFactor = Math.min(1, playerSpeed / maxSpeed); // 0 (slow) to 1 (max speed)
		if (speedLossFactor > 0.2) {
			// Only apply if moving at least 20% of max speed
			// Proportional reduction: higher speed = more loss
			var accelLoss = 0.35 * speedLossFactor; // Up to 35% loss at max speed
			var velocityLoss = 0.25 * speedLossFactor; // Up to 25% velocity loss at max speed
			acceleration *= 1 - accelLoss;
			if (acceleration < 0.05) acceleration = 0.05;
			velocityX *= 1 - velocityLoss;
			velocityY *= 1 - velocityLoss;
		}
	}
	// Update last collision state
	carPlayer.lastColliding = currentColliding;
	// Update enemy car physics (simple momentum with friction)
	enemyCar.x += enemyCar.velocityX;
	enemyCar.y += enemyCar.velocityY;
	// Apply natural deceleration to enemy car - progressive friction
	var currentEnemySpeed = Math.sqrt(enemyCar.velocityX * enemyCar.velocityX + enemyCar.velocityY * enemyCar.velocityY);
	if (currentEnemySpeed > 0.1) {
		// Apply speed-dependent friction - faster cars decelerate more quickly
		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;
	}
	// Update speed display
	speedText.setText('Speed: ' + Math.round(totalSpeed));
};

===================================================================
--- original.js
+++ change.js
@@ -482,14 +482,19 @@
 		enemyCar.velocityX += normalX * impactSpeed * pushFactor * (playerCarWeight / (playerCarWeight + enemyCar.weight));
 		enemyCar.velocityY += normalY * impactSpeed * pushFactor * (playerCarWeight / (playerCarWeight + enemyCar.weight));
 		// Visual feedback for collision
 		LK.effects.flashObject(carPlayer, 0xff0000, 500);
-		// Reduce player acceleration if collision is at high speed
-		if (playerSpeed > maxSpeed * 0.6) {
-			// Only if going fast
-			acceleration *= 0.6;
-			// Clamp to a minimum acceleration to avoid getting stuck
+		// Reduce player acceleration and velocity proportionally to current speed for more natural and realistic collision
+		var speedLossFactor = Math.min(1, playerSpeed / maxSpeed); // 0 (slow) to 1 (max speed)
+		if (speedLossFactor > 0.2) {
+			// Only apply if moving at least 20% of max speed
+			// Proportional reduction: higher speed = more loss
+			var accelLoss = 0.35 * speedLossFactor; // Up to 35% loss at max speed
+			var velocityLoss = 0.25 * speedLossFactor; // Up to 25% velocity loss at max speed
+			acceleration *= 1 - accelLoss;
 			if (acceleration < 0.05) acceleration = 0.05;
+			velocityX *= 1 - velocityLoss;
+			velocityY *= 1 - velocityLoss;
 		}
 	}
 	// Update last collision state
 	carPlayer.lastColliding = currentColliding;