Changing friction from code not working (2D)

Question

I want to change a collider's physic's material from code, I use the code below. I see the material's friction changing in the inspector, however the collider behaves as if the friction wouldn't change.

     void checkOnGround() {
         Transform t;
         foreach(Collider2D c in collidingTiles) {
             t = c.transform;
             if(t.position.y - transform.position.y < -Misc.TILE_SIZE * 0.75f) {
                 onGround = true;
                 myCollider.sharedMaterial.friction = 0.8f;
                 return;
             }
         }
         onGround = false;
         myCollider.sharedMaterial.friction = 0f;
         return;
     }

Answer 1

Best Answer

Answer by klolololol · Apr 21, 2015 at 02:39 PM

I had to disable than enable the collider, that's the only solution I've found. It's a workaround, but this part of unity is buggy.

Here's the modified code:

     void checkOnGround() {
         Transform t;
         foreach(Collider2D c in collidingTiles) {
             t = c.transform;
             if(t.position.y - transform.position.y < -Misc.TILE_SIZE * 0.75f) {
                 onGround = true;
                 myCollider.sharedMaterial.friction = 20.0f;
                 myCollider.enabled = false;
                 myCollider.enabled = true;
                 return;
             }
         }
         onGround = false;
         myCollider.sharedMaterial.friction = 0.0f;
         myCollider.enabled = false;
         myCollider.enabled = true;
         return;
     }

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brlan10 · Oct 19, 2016 at 03:45 AM 0

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Had the same problem and this works. However, I can't imagine it is good for performance.

Deeeds brlan10 · May 06, 2018 at 07:04 PM 0

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is this still the way to do this?

and why shared$$anonymous$$aterial and not physics$$anonymous$$aterial2D?

Answer 2

Answer by alpha_ml · May 31 at 10:28 AM

This still has not been fixed, and the enabled/disabled workaround still works. Any update from a unity dev on why this is ?

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Changing friction from code not working (2D)

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