public class CarPhysics : MonoBehaviour public float driftFactor = 0.95f; public float acceleration = 10f; public float turnSpeed = 120f; private Rigidbody2D rb; void FixedUpdate() // Input handling float gas = Input.GetAxis("Vertical"); float steer = Input.GetAxis("Horizontal");
let keys = {}; let penaltyTime = 0; let levelTime = 30; dr driving source code
// Drift friction (The secret sauce) Vector2 forward = transform.up; Vector2 sideways = transform.right; float forwardVel = Vector2.Dot(rb.velocity, forward); float sidewaysVel = Vector2.Dot(rb.velocity, sideways); rb.velocity = (forward * forwardVel) + (sideways * sidewaysVel * driftFactor); Hitting a wall adds 5 seconds to your clock
The driftFactor variable (0.95) prevents the car from sliding indefinitely, giving DR Driving its signature "heavy" feel. 2. The Penalty System (Collision Detection) The most distinctive feature of DR Driving is the time penalty on collision. Hitting a wall adds 5 seconds to your clock. Hitting a car adds 10 seconds. The source code handles this via OnCollisionEnter2D . // Acceleration Vector2 forwardForce = transform
// Acceleration Vector2 forwardForce = transform.up * gas * acceleration; rb.AddForce(forwardForce, ForceMode2D.Force);
/DR-Driving-Clone ├── index.html (Canvas element) ├── style.css (Retro UI, timer display) ├── game.js (Main loop, requestAnimationFrame) ├── car.js (Vehicle class with drift physics) ├── world.js (Road generation, cone placement) ├── collisions.js (Separating Axis Theorem implementation) └── penalties.js (Time addition logic) // Simplified DR Driving logic in 50 lines const canvas = document.getElementById('game'); const ctx = canvas.getContext('2d'); let car = x: 400, y: 500, angle: -90, speed: 0, maxSpeed: 8, drift: 0.92 ;
public class PenaltySystem : MonoBehaviour public float wallPenalty = 5f; public float carPenalty = 10f; private LevelTimer timer; void OnCollisionEnter2D(Collision2D collision) if (collision.gameObject.tag == "Wall") timer.AddPenalty(wallPenalty); // Visual feedback: Screen shake or red flash StartCoroutine(ShakeCamera(0.2f)); else if (collision.gameObject.tag == "AICar") timer.AddPenalty(carPenalty); // AI spin-out logic collision.rigidbody.AddTorque(Random.Range(-500, 500)); // Reset the car's velocity to avoid unrealistic bouncing GetComponent<Rigidbody2D>().velocity = Vector2.zero;