Wheel Collider

Collider for ground vehicles, with built-in collision detection, basic suspension physics, and a basic tire friction model.

Usage

Create a car GameObject with a Rigidbody component, a collider, and a model.

Create four empty child GameObjects with just models. These shouldn't have colliders or be rigidbodies.

Attach a Component script that controls the car on the car GameObject, for example:

public sealed class Car : Component

{

	[RequireComponent] public Rigidbody Rigidbody { get; set; }



	private List<Wheel> Wheels;



	protected override void OnEnabled()

	{

		Wheels = Components.GetAll<Wheel>( FindMode.EverythingInSelfAndDescendants ).ToList();

	}



	protected override void OnFixedUpdate()

	{

		float verticalInput = Input.AnalogMove.x;

		float torque = verticalInput * 10000f;



		// Apply torque to each drive wheel

		foreach ( Wheel wheel in Wheels )

		{

			wheel.ApplyMotorTorque( torque );

		}

	}

}