Spawn a random object on more than one position

Questions & Answers
1

I have 5 spawn points and three game objects, my goal is to spawn a random object at each of the locations. so far i have a script that will randomly select one of the three objects and spawn it at one of the 5 locations at random. I could use a bit of help to convert the script to select a different object at each spawn point.

here is what i have so far

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

public class GameManager : MonoBehaviour { 
//create an array of spawn points, assigned in inspector 
public Transform[] collectableSpawnPoints = new Transform[5];

  //create an array of collectables to choose from
     public GameObject[] items = new GameObject[3];
 
     // Use this for initialization
     void Start () {
         SpawnCollectables();
     }
     
     // Update is called once per frame
     void Update () {
         }
 
    //selects spawn point
    public Transform GetCollectableSpawnPoint()
     {
         //randomly selects a point out of the array
         int index = Random.Range(0, collectableSpawnPoints.Length);
         //returns the selected point
         return collectableSpawnPoints[index];
     }
 
     //selects object to spawn
     public GameObject GetCollectable()
     {
         //selects one of the items from the array
         int index = Random.Range(0, items.Length);
         //returns the object selected
         return items[index];
     }
 
     // spawns the random object on the random point
     public GameObject SpawnCollectables()
     {
         //selects the spawn point
         Transform spawnPoint = GetCollectableSpawnPoint();
         //selects the object
         GameObject collectable = GetCollectable();
         //creates the object selected on the point selected
         GameObject c = Instantiate(collectable, spawnPoint.position, spawnPoint.rotation) as GameObject;
        //spawns the object
         return c;
     }
3

Following your example, because you are spawning at random locations anyway, there is no need to also spawn a random item. So you can just iterate the items using an indexer to make sure each spawned item is unique. I have edited your code as an example.

It will start at a random index, and then proceed from that index to select items.

Your script however will only spawn one random item. If you want to spawn all the items, I included a method to do so. private void SpawnAllCollectables()

 public class GameManager : MonoBehaviour { 
 //create an array of spawn points, assigned in inspector 
 public Transform[] collectableSpawnPoints = new Transform[5];
 
   //create an array of collectables to choose from
  public GameObject[] items = new GameObject[3];

    //keeps track of the items spawn index
    private int itemIndex = 0;
  
      // Use this for initialization
      void Start () {
          itemIndex = Random.Range(0, items.Length);
          SpawnCollectables();
      }
      
      // Update is called once per frame
      void Update () {
          }

     //spawns all the collectables from the items array
     private void SpawnAllCollectables()
     {
         //iterates through the number of collectables in items array
         for (int i = 0; i < items.Length; i++)
         {
             //spawns a unique collectable
             SpawnCollectables();
         }
     }
  
     //selects spawn point
     public Transform GetCollectableSpawnPoint()
      {
          //make sure the item index is within the item array range
          itemIndex = itemIndex % items.Length;
          //returns the selected point
          return collectableSpawnPoints[itemIndex++];
      }
  
      //selects object to spawn
      public GameObject GetCollectable()
      {
          //selects one of the items from the array
          int index = Random.Range(0, items.Length);
          //returns the object selected
          return items[index];
      }
  
      // spawns the random object on the random point
      public GameObject SpawnCollectables()
      {
          //selects the spawn point
          Transform spawnPoint = GetCollectableSpawnPoint();
          //selects the object
          GameObject collectable = GetCollectable();
          //creates the object selected on the point selected
          GameObject c = Instantiate(collectable, spawnPoint.position, spawnPoint.rotation) as GameObject;
         //spawns the object
          return c;
      }
2

hi;

first of all u don’t really need to create another function for every lane of your code that may just make u more confuse about what u are going to di , you can do it simply like this in 1 lane;

  public GameObject SpawnCollectables()
    {
      
         GameObject c = Instantiate(items[Random.Range(0, items.Length)], collectableSpawnPoints[Random.Range(0, collectableSpawnPoints.Length)].position, spawnPoint.rotation) as GameObject;
        //spawns the object
        return c;
    }

for your question do u want to spawn all the balls randomly in your Transform ?
if that’s the idea then u don’t need to randomly select the balls u can just write a loop and go through all of your balls and Instantiate them;