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Question by malmidu · May 05, 2013 at 06:30 PM · randomobjectsgenerate

Generating objects randomly, only one will Instantiate

Hi,

I'm trying to create a random number that then goes through an if statement to decide which object to spawn, but for some reason only the first of the two objects ever get created.

Here's the code

 var myTimer : float;
 var Obstacle : GameObject;
 var Obstwo : GameObject;
 var ObsChance : float;
 function Start () {
     myTimer = Random.Range(0.0, 3.0);
     }
 function Update () {
     ObsChance = Random.Range(0.0, 100.0);
 
 if (myTimer > 0){
     myTimer -= Time.deltaTime;
     }
 if (myTimer <= 0){
     if (ObsChance <= 50){
     var obstacleClone : GameObject = Instantiate(Obstacle, transform.position, transform.rotation);
     }
     else if (ObsChance > 50){
     var ObstwoClone : GameObject = Instantiate(Obstwo, transform.position, transform.roatation);
     }
     myTimer = Random.Range(0.0, 3.0);
     }
 }

Not sure why the second if never triggers.

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avatar image FL · May 05, 2013 at 07:22 PM 0
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I can't find the error. Check if the Obstacle and Obstwo have different objects. By the way, why you are using a float for the random value?

avatar image cdrandin · May 05, 2013 at 07:45 PM 0
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Double check you are using the correct prefabs when yo are assigning it to your gameobject location of your script.

Here is a nicer time which is in my opinion simpler and easy to read.

 float timer;
 int waitingTime;
  
 void Update()
 {
     timer += Time.deltaTime;
     if(timer > waitingTime)
     {
         //Action
        timer = 0;
     }
 }
avatar image robertbu · May 05, 2013 at 07:54 PM 0
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For fifty-fifty you can do:

 if (Random.Range(0,2) == 0) {
     // Do one thing
 }
 else {
     // Do another
 }

The integer version of Random.Range is exclusive of the last value.

avatar image Grug16 · May 05, 2013 at 08:02 PM 0
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Why are you changing ObsChance every frame? It seems like it would be more efficient to move line 9 to line 15. Have you tried printing the value of ObsChance before running the spawn code?

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