Converting to C#

I'm converting a script to C# to make it easier for the rest of my coding team but this line of code

Code (CSharp):

1. if (Input.GetKey(KeyCode.Space))
2.             {
3.                 gameObject.GetComponent<Rigidbody>().velocity = gameObject.GetComponent<Rigidbody>().velocity * 0.9f;
4.             }

is giving me the error "cannot modify a value type return value of unityengine.Rigidbody.velocity'.Consider storing the value in a temporary variable" and i'm sure its some stupid little thing but I don't know the answer

 

I may be wrong, but if I remember right, the velocity variable in a rigidbody is a vector3 isn't it? if you're using the spacebar, you are probably jumping yes? try this

Code (csharp):

1.  
2. gameObject.GetComponent<Rigidbody>().velocity.y *= 0.9f;
3.  

also you shouldn't have to access it a second time. using the *= does the same thing and saves a bit of processing if I remember correctly

Edit: also the AddForce() function may be more what you're looking for, bit smoother transitioning

 

That code didn't do anything, i'm still getting the same error, also i would use addforce but i want an abrupt stop not a smooth stop

 

Its one of the synaptic sugar items that is hidden in JS. Try this.

Code (CSharp):

1. if (Input.GetKey(KeyCode.Space))
2.             {
3.                 Vector3 temp =  GetComponent<Rigidbody>().velocity * 0.9f;
4.                 GetComponent<Rigidbody>().velocity = temp;
5.             }

Its also worth caching the rigid body if you call GetComponent frequently.

 

Thank you

 

one final thing its giving the same error for this line of code as well

Code (CSharp):

1.         } else {
2.             gameObject.GetComponent<Rigidbody>().velocity.x = -topSpeed;
3.        

topSpeed is a float

 

Same solution.

Code (CSharp):

1. Vector3 temp = GetComponent<Rigidbody>().velocity;
2. temp.x = -topSpeed;
3. GetComponent<Rigidbody>().velocity = temp;

 

thanks i could not figure out which part was the temp