CharacterController collision issue

Hello,
I have added an ability to crouch in the game. The way I've done that is by changing the controller height and center y value. The issue is when I crouch to go underneath a platform the player still collides with the platform even though there's clearly enough space.



If I set the controller height to the crouch height as the default height the player is able to go underneath the platform without trouble. Although, if I use the center offset the collision issue occurs.

Code (CSharp):

1. bool  isCrouching; float defaultHeight;
2.  
3. private CharacterController controller = null;
4.  
5. void Start()
6. {
7.     controller = GetComponent<CharacterController>();
8.     defaultHeight = controller.height;
9. }
10. void Update()
11. {
12.     isCrouching = Input.GetKey(KeyCode.C);
13. }
14. void FixedUpdate()
15. {
16.     DoCrouch();
17. }
18. void DoCrouch()
19. {
20.     var height = isCrouching ? defaultHeight / 2 : defaultHeight;
21.  
22.     controller.height = Mathf.Lerp(controller.height, height, 5 * Time.deltaTime);
23.     controller.center = Vector3.down * (defaultHeight - controller.height) / 2.0f;
24. }

How do I fix this issue? Thank you

 

Can you provide your code ?

 

Thanks for the reply! Of course, I added the code to the question. It's not the actual script, but just the way I handle crouching functionality.