prefab

Asset & Content Management
1

Hi folks,

i am working on a project, where birds are creating using prefab,

using UnityEngine; 
using System.Collections; 
public class birdGenerator : MonoBehaviour
 { 
 public GameObject prefab; 
 
 
  public static float prevTime = Time.time;
  
 public bool isChild;
  
         
  void Start ()
  {
  	
  } 
    Vector3 tempPos;
    
		
	private Vector3 position = new Vector3 (0,0,0);
	
	
		
    void Update () 
      {
           	 
   	   float myDelta = Time.time - prevTime;
   	   
   	   if(myDelta >4.0f)
       { 
      	prevTime = Time.time;
   	    
        Vector3 position = new Vector3(Random.Range(0.0f, 0.25f), 0.8f, Random.Range(0.0f, 10.0f)); 
        
        
            GameObject BirdClone = Instantiate(prefab, position, Quaternion.identity) as GameObject; 
             BirdClone.transform.localScale = new Vector3(0.1f, 0.1f, 0.1f);     	 		
       
             isChild = prefab.transform.IsChildOf( GameObject.FindWithTag("model").transform); 
        
        
      
       
       BirdClone.transform.parent = GameObject.FindWithTag("model").transform;            
       
               
      
 } 
	   
}
}

when birds are behind the main camera,and not in the scene view , how to destroy unused birds from memory??? and bird is child of model( environment),
move with environment.

Thankx for advance.

2

The birds won’t be rendered when they are out of view, so that will help performance. You can use the OnBecameInvisible function to detect when no camera can see your object:-

void OnBecameInvisible() {
    Destroy(this.gameObject);
}