Supplying Input from Update To FixedUpdate

Question

I want to spawn some rigidbodies and apply some initial force to them on spawning.But i want the rigidbodies to spawn in FixedUpdate and add force to them there.However I spawn them on user input and the input is taken in Update for avoiding misses as compared to FixedUpdate .So i tried and wrote the following code in C#

 void FixedUpdate()
 {
     
     while(InputCount!=0)
     {
     temp = Instantiate(bomb,childTransform.position,Quaternion.identity)as GameObject;
         
         
     temp.rigidbody.AddForce(this.transform.right*(-1)*forceAmount);
     InputCount--;
     }

 }

 void Update () 
 {

     if(Input.GetMouseButtonDown(0))
     {
         InputCount++;
     }
 }

Here I had Single input so I just incremented its count,But in general case I intend to keep a hash map with keys with their count and supply it to FixedUpdate from Update as in above code.Is there any standard practice for doing this or I am doing it right?

Answer 1

Best Answer

Answer by Antony-Blackett · Dec 13, 2014 at 03:03 PM

There aren't any standard practices for this or a lot of things in Unity. Basically that's up to you to decide.

There are a tonne of different ways to achieve what you're doing. If yours works for you then I'd say it's good enough.

Add comment · Show 2 · Share

Ashish4241 · Dec 13, 2014 at 07:33 PM 0

Share

Any other way to do it?

Antony-Blackett · Dec 14, 2014 at 12:28 AM 0

Share

You could try using a coroutine. Whe you detect the input use this line of code to wait for fixed update:

 void Start()
 {
     StartCoroutine( SpawnThingsOnClick() );
 }
 
 IEnumorator SpawnThingsOnClick()
 {
     While(true)
     {
         If( Input.Get$$anonymous$$ouseButtonDown(0) )
         {
             yield return new WaitForFixedUpdate();
             // do your physics stuff here
         }
    
         yield return null; // this yields the coroutine for a single frame
     }
 }

You should read the manual on coroutine a as they can be very useful but can take a bit of time to get your head around them.

Supplying Input from Update To FixedUpdate

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions