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Question by edgib102 · Jan 26, 2020 at 03:58 AM · instantiatequaternionobjectsrandom.rangeclone

How to get randomly spawning objects across a map

Recently I have been coding a game that requires you to pick up collectibles across a map. As I am fairly new to c#, I really can't work it out and i cant get the objects to distribute. Also having some trouble with quaternions. I would really appreciate some help. It's made in top down 2D. code:

  public Object Wood;
  public Transform WoodP;
     
     
     public Vector3 woodpos = new Vector3(Random.Range(100, -100), Random.Range(100, -100), 0);
 
     void Update()
     {
         Instantiate(Wood, woodpos, Quaternion.Euler(Random.Range(0, 360), 0, 0), WoodP);
     }


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Answer by knobblez · Jan 26, 2020 at 05:39 AM

Update is a crazy place to put that. It's gonna spawn an insane amount of objects. I would use a variable like:

int spawnCount;

and put in a for loop so it only spawns a certain amount. Put that in a function() and just call it when you need it instead of every frame.

As for the code, that looks like it should work.

For rotation, I would probably use eulerAngles: https://answers.unity.com/questions/790877/random-rotation-in-z-axis.html

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Answer by edgib102 · Jan 26, 2020 at 10:51 PM

So I did that (minus the rotation) and it completely bugs out spawning massive objects, and crashing the game (not sure how big they are, could just be a visual glitch)
Code:

     public Object Wood;
     public Transform WoodP;
     public int Spawncount = 5;
     int spawnLimit = 0;
 
     public void Update()
     {
         if (spawnLimit != Spawncount || spawnLimit <= Spawncount)
         {
             WoodGen();
             spawnLimit++;
         }
     }
 
     void WoodGen()
     {
         Vector3 woodpos = new Vector3(Random.Range(100, -100), Random.Range(100, -100), 0);
         Instantiate(Wood, woodpos, Quaternion.Euler(Random.Range(0, 360), 0, 0), WoodP);
         
     }
 
 }

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