c# - 为什么在 Unity 5 中，我的 2D 触发器对撞机只感知与某些对象的碰撞而不感知其他对象的碰撞？

Question

我正在使用触发器对撞机(已选中触发器的 circleCollider2D)，但它仅检测与某些对象的碰撞。

这是触发器上的脚本:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Scoring : MonoBehaviour {

public updateScore updateScore;
Transform earth;
// Use this for initialization
void Start () {
    earth = GetComponent<Transform>();
}
void OnTriggerExit2D(Collider2D other)
{
    Debug.Log("other collider " + other);
    updateScore.score++;    
}
}

它正在感应这个物体:

它是一个二维 meteor 对象，上面有一个 rigidbody2D 和一个 circleCollider2D。它附有这个脚本:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CometMovement : MonoBehaviour {

public float speed = 0.5f;
Rigidbody2D rb;
Vector2 direction;

// Use this for initialization
void Start () {
    direction = new Vector2(Random.Range(10.0f, -10.0f), Random.Range(10.0f, -10.0f));
    rb = GetComponent<Rigidbody2D>();
    rb.AddForce(direction * speed);

}


}

但它没有感应到下面的物体。我需要它来感知下面的对象:

它是一个具有 rigidbody2d 和 CircleCollider2D 的地球对象，与 meteor 对象几乎相同。它附有这个脚本:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class EarthController : MonoBehaviour {

public float force = 0.5f;
Rigidbody2D rb;
Vector2 direction;
Transform transform;

// Use this for initialization
void Start () {
    direction = new Vector2(0, 4);
    transform = GetComponent<Transform>();
    rb = GetComponent<Rigidbody2D>();
    rb.isKinematic = false;
}

//  void OnCollisionEnter2D(Collision2D coll) {
//      SceneManager.LoadScene("Level 01");
//
//  }

// Update is called once per frame
void Update () {

    if(Input.GetButton("Fire1")){
        rb.isKinematic = false;
        if(transform.position.x <= 0 && transform.position.y <= 4){
            direction = new Vector2(0, -4);
        } else {
            direction = new Vector2(0, 4);
        }

        rb.AddForce(direction * force);
        Debug.Log("going this fast: " + rb.inertia);
    } else {
        rb.isKinematic = true;
        rb.velocity = Vector2.zero;
    }
}
}

Answer 1

根据documentation :

If isKinematic is enabled, Forces, collisions or joints will not affect the rigidbody anymore

if(Input.GetButton("Fire1")){
    rb.isKinematic = false;
    // ...
} else {
    rb.isKinematic = true;
}

此外，检查您的 Physics parameters ？

确保您的两个碰撞器都不是触发器。不确定这个。