> For the complete documentation index, see [llms.txt](https://oscar-gracian.gitbook.io/easy-character-movement-2/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://oscar-gracian.gitbook.io/easy-character-movement-2/walkthrough/physics.md).

# Physics

While functioning as a kinematic character controller, the `CharacterMovement` component, also known as the motor, can seamlessly perform physics interactions, including pushing rigid bodies or other characters, responding to external forces, and handling dynamic platforms.

The following example demonstrates how to utilize the `Character` `LaunchCharacter` function to implement a bouncer.

```csharp
public class Bouncer : MonoBehaviour
{
    public float launchImpulse = 15.0f;

    public bool overrideVerticalVelocity;
    public bool overrideLateralVelocity;

    private void OnTriggerEnter(Collider other)
    {
        if (!other.CompareTag("Player"))
            return;

        if (!other.TryGetComponent(out Character character))
            return;
        
        character.PauseGroundConstraint();
        character.LaunchCharacter(transform.up * launchImpulse, overrideVerticalVelocity, overrideLateralVelocity);
    }
}
```

It's important to note the use of `PauseGroundConstraint`. This temporarily disables the character's ground constraint, allowing the character to freely leave **walkable** ground.

The following example demonstrates how to extend a `Character` through composition to apply a landing force. This utilizes the `Landed` event.

```csharp
public class ApplyLandingForce : MonoBehaviour
{
    public float landingForceScale = 1.0f;
    
    private Character _character;

    private void Awake()
    {
        _character = GetComponent<Character>();
    }

    private void OnEnable()
    {
        _character.Landed += OnLanded;
    }

    private void OnDisable()
    {
        _character.Landed -= OnLanded;
    }

    private void OnLanded(Vector3 landingVelocity)
    {
        Rigidbody groundRigidbody = _character.characterMovement.groundRigidbody;
        if (!groundRigidbody)
            return;
        
        Vector3 force = _character.GetGravityVector() *
                        (_character.mass * landingVelocity.magnitude * landingForceScale);
            
        groundRigidbody.AddForceAtPosition(force, _character.position);
    }
}
```

Here, the landing force is calculated as (`characterMass * characterGravity * landingVelocity * landingForceMag`) and is applied along the character's gravity direction.