While(true) code breaks program

I am trying to use an infinite loop (while(true)) to wait for a user to click the spacebar before executing the meat of a certain code. The context is that all this occurs in OnMouseDown(), meaning when the user clicks on a certain gameobject, it executes the infinite loop, then breaks when the user clicks the spacebar and continues on to the meat of the code. This loop is causing my program to freeze. It won't let me even quit the scene or do anything in it; my only choice is to use task manager to kill the unity editor altogether. Can anyone tell me why this is happening? Here is the whole function:

Code (CSharp):

1. void OnMouseDown(){
2.         //When mouse clicks, waits for a keyboard input from the user, then executes the meat of the code.
3.         transform.localScale = new Vector3 (20f, 20f, 0f);
4.  
5.         while (true) {
6.             if (Input.GetKeyDown(KeyCode.Space)) {
7.                 break;
8.             }
9.         }
10.             //Meat of the code.
11.             input = "H";
12.             string x = find (input, I1);
13.             getValueText.text = x;
14.             getValue.SetActive (true);
15.             transform.localScale = new Vector3 (10f, 10f, 0f);
16.                
17.        
18.    
19.     }

Thanks much!

 

You don't want infinite loops since now 100% of your computer resources are just going in circles

try putting

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

in a Update() method

EDIT:

Code (CSharp):

1. private void Update()
2. {
3.             if (Input.GetKeyDown(KeyCode.Space))
4.            {
5.            
6.            //Meat of the code.
7.             input = "H";
8.             string x = find (input, I1);
9.             getValueText.text = x;
10.             getValue.SetActive (true);
11.             transform.localScale = new Vector3 (10f, 10f, 0f);
12.             }
13.  }
14.        
15.  
16.    

 

Yes, what @marcV2g stated. As far as I know, you'll never want (or need) to use infinite loops in Unity. All of the Update functions are essentially infinite loops anyway, so it's better to use them instead.

 

Just to add: If it has occur after the mouse down event, you can add a bool to say it's "ready", and check for that bool && the space key.