How to randomly generate objects with different timings

Questions & Answers
1

Hi, I want to randomly generate objects with different timing. I have three objects that I want to generate. The code that I use generate all of the 3 objects very fast I want to generate them 1 by 1 randomly with slow speed

#pragma strict

var RedObject : GameObject;
var BlueObject : GameObject;
var GreenObject : GameObject;


var minSpawnTime1 : float = 0.1f;
var maxSpawnTime1 : float = 0.3f;
var minSpawnTime2 : float = 0.4f;
var maxSpawnTime2 : float = 0.6f;
var minSpawnTime3 : float = 0.1f;
var maxSpawnTime3 : float = 0.5f;
var timer : float = 0.0f;

var nextTime1 : float;
var nextTime2 : float;
var nextTime3 : float;




function Start () {


nextTime1 = Random.Range(minSpawnTime1, maxSpawnTime1);
nextTime2 = Random.Range(minSpawnTime2, maxSpawnTime2);
nextTime3 = Random.Range(minSpawnTime3, maxSpawnTime3);


}	

function Update ()
{

timer += Time.deltaTime;

if(timer > nextTime1){
Instantiate(RedObject, transform.position + Vector3(-1.817686, 4.976417, 0), Quaternion.Euler(0,0,0) );
timer = 0.0f;
nextTime1 = Random.Range(minSpawnTime1, maxSpawnTime1);

}

if(timer > nextTime2){
Instantiate(BlueObject, transform.position + Vector3(0.8537216, 4.976417, 0), Quaternion.Euler(0,0,0) );
timer = 0.0f;
nextTime2 = Random.Range(minSpawnTime2, maxSpawnTime2);

}

if(timer > nextTime3){
Instantiate(GreenObject, transform.position + Vector3(3.570783, 4.976417, 0), Quaternion.Euler(0,0,0) );
timer = 0.0f;
nextTime3 = Random.Range(minSpawnTime3, maxSpawnTime3);

}


}
2

You simply have to change this variables:

var minSpawnTime1 : float = 0.1f;
var maxSpawnTime1 : float = 0.3f;
var minSpawnTime2 : float = 0.4f;
var maxSpawnTime2 : float = 0.6f;
var minSpawnTime3 : float = 0.1f;
var maxSpawnTime3 : float = 0.5f;

for example, if you want to spawn object 1 and after 2 or 3 seconds spawn the second, you have to change minSpawnTime2 to 2 and maxSpawnTime2 to 3, is simple.

3

Coroutines would be handy here. Heres a rough example. The dostuff coroutine will keep running forever in this case and it will wait for “timetowait” seconds each time.

    void Start()
{
	StartCoroutine("DoStuff",blueobject);
            StartCoroutine("DoStuff",redobject);
            StartCoroutine("DoStuff",greenobject);
}
private IEnumerator DoStuff(GameObject thingtoinstantiate)
{
	while(true)
	{
		Instantiate(thingtoinstantiate);
		yield return new WaitForSeconds(timetowait) ;
	}	
}