trying to make a flappy bird clone and i cant seem to make the player and walls collide (very new beginner) so was looking for solutions and none of them worked for me

using UnityEngine;

public class Obstacle : MonoBehaviour
{
   public Rigidbody2D rb;
    public float Speed = 10f;

    // Update is called once per frame
    void Update()
    {
        rb.linearVelocity = new Vector2(Speed, rb.linearVelocity.y);
    }
     
    void OnCollisionEnter(Collision collisionInfo)

    {
               if(collisionInfo.collider2D.tag == "Obstacle")
               {
                 FindObjectOfType<GameManager>().EndGame();
               }
    }
}

this is the code for the wall (pretty sure the GameManager is good) Picture of my walls componentsAnd this is a picture of my players components as a side note i couldnt find a way for the walls to not fall down when i click on play so i set the mass to like 10 and the gravity to 0 in case that creates any problems

trying to make a flappy bird clone and i cant seem to make the player and walls collide (very new beginner) so was looking for solutions and none of them worked for me

using UnityEngine;

public class Obstacle : MonoBehaviour
{
   public Rigidbody2D rb;
    public float Speed = 10f;

    // Update is called once per frame
    void Update()
    {
        rb.linearVelocity = new Vector2(Speed, rb.linearVelocity.y);
    }
     
    void OnCollisionEnter(Collision collisionInfo)

    {
               if(collisionInfo.collider2D.tag == "Obstacle")
               {
                 FindObjectOfType<GameManager>().EndGame();
               }
    }
}

this is the code for the wall (pretty sure the GameManager is good) Picture of my walls componentsAnd this is a picture of my players components as a side note i couldnt find a way for the walls to not fall down when i click on play so i set the mass to like 10 and the gravity to 0 in case that creates any problems

• unity-game-engine
• 2d
• game-physics
• physics

• Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. – Community Bot Commented Apr 2 at 0:09

2 Answers 2

You have Is Trigger checked on your Obstacle.

You need to use OnTriggerEnter instead of OnCollisionEnter

you have to use 2D game object with 2D colliders only. I think you are using 2D and 3D objects, if not then uncheck IsTrigger and then your OnCollisionEnter2D will work else if you want to make that IsTrigger checked then use OnTriggerEnter2D function.