如何计算旋转单位3D C＃的速度

Question

so the thing is: i have a sensor that makes a rigidbody rotate, the problem is that i can't calculate the speed in which it was rotated (If the sensor was moved fast the object would also move fast but when it collides with another gameobject it won't apply the speed/force which with it has been rotated) Is there any way I can calculate the speed/force in which it has recently rotated so that i can apply that speed/force to another object when it collides?

note: im not entirely sure if what i need is speed or force

float rot = float.Parse (sp.ReadLine());
transform.eulerAngles = new Vector3 (0, 90, rot); 

note: because of how the object was designed it has to be rotated by default in 90 degrees. Basically what im doing is receiving information from a Gyroscope and puting it in the object rotation.

The sensor gives values from -90 to 90 in the form of Float, when it is rotated to the left it gives values from -90 to 0, when rotated to the right it gives values from 0 to 90. this values should be used to graphically rotate the object and also aply the speed in which it was rotated when it collides whith another gameobject (if it was moved fast from -90 to -20 for example it should apply more force than if it was moved slowly from -90 to -50 to -20)

Answer 1

When trying to cause believable physical interaction between objects, you never want to manipulate the transform directly. Instead, you should be making use of the various methods available to physically influence an attached Rigidbody .

To apply rotation in this case, you're going to want to use Rigidbody.AddTorque() . Here's an idea of how you might use it:

// Probably get this value in Start() and save it for later
Rigidbody rb = GetComponent<Rigidbody>();

float rot = float.Parse (sp.ReadLine());

// transform.forward is the unit vector corresponding to the local z-axis of the object
Vector3 rotationAxis = transform.forward * rot;
rb.AddTorque(rotationAxis);

Hope this helps! Let me know if you have any questions.