Chewing gum Physics Material 2D

Question

I am trying to create a GameObject that should work like a chewing gum. For that I did the following:

Create an empty GameObject
Drag the sprite (same width and height) into the previous GameObject
Add a Box Collider 2D to the GameObject
Create a Physics Material 2D
Add the previous Physics Material 2D to the Box Collider 2D

I used a Bounciness value of 0.3f so it bounces a little and a Friction value of 0.8f so the objects that touch it get stuck but it is not working. I also tried with several combinations of those values but with no luck.

Is this the right approach? I am new to Unity so maybe I am not getting how really Physics Material work.

Please note that I am using 2D mode settings.

Answer 1

Answer by moneymaker · Mar 08, 2014 at 03:30 PM

I ended up using another approach that works better. Using OnCollisionEnter2D I create a SpringJoint2D connecting the object that touched it. I also change the linear drag of the same object so it does not move too much.

  public class Gum : MonoBehaviour {
     
         void OnCollisionEnter2D(Collision2D collider)
         {
             GameObject go = collider.gameObject;
             SpringJoint2D joint = gameObject.AddComponent<SpringJoint2D>();
             joint.connectedBody = go.rigidbody2D;
             go.rigidbody2D.drag = 10;
         }
     
     }

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Chewing gum Physics Material 2D

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