我想在 unity3d c# 中按下一个键来冻结一个对象

Question

So what I want to do is when a player presses a key the object somehow deletes the rigidbody or just freezes it. I looked at the docs but I didn't understand what to look for.

if (Input.GetKeyDown(KeyCode.F))
{

}

Also I want the player to be able to unfreeze it after he froze it. (or recover the rigidbody when it was deleted)

Answer 1

As said what you want is do freeze the Rigidbody like eg

private Rigidbody _rigidbody;
private float velocity;

private void Awake ()
{
    _rigidbody = GetComponemt<Rigidbody>();
}

private bool isFrozen;

private void Update()
{
    if (Input.GetKeyDown(KeyCode.F))
    {
        isFrozen = !isFrozen;
        if(isFrozen) velocity = _rigidbody.velocity;
        _rigidbody.velocity = isFrozen ? Vector3.zero : velocity;
        _rigidbody.isKinematic = isFrozen;
    }
}

and when you want it to react to physics again disable isKinematic and assign back the velocity .

Answer 2

You should be able to simply set 'enabled' to false on the Rigidbody component.

Something like this, note that it would likely make sense to cache the rigidbody on Awake() or whatever fits your context.

if (Input.GetKeyDown(KeyCode.F))
{
    gameObject.GetComponent<Rigidbody>().enabled = false;
}