Declaring an Array as a combination of multiple other arrays?

Question

Okay, so I'm currently working on a project in which I need to be able to randomly spawn certain objects in to the world. Currently, I'm working on ships. Basically, I want to be able to 'unlock' new ships, from separate arrays over time. Here's an example of what I mean. It's a snippet of code from the main spawning script that I'm working on.

     public GameObject[] currentShips;
     public GameObject[] starterShips;
     public GameObject[] advancedShips;
     public GameObject[] endShips;
 
     private int randomShip;
 
     void FixedUpdate () {
         if (time >= 60) {
             currentShips = starterShips, advancedShips;
             if (time >= 180){
                 currentShips = starterShips, advancedShips, endShips;
             }
         }

Now, at the end there, you'll see that I've tried to declare an array as multiple others with a comma. Of course, this didn't work. So, how can I achieve this? currentShips is used later on to actually spawn a ship, picked at random from the currentShips.

Thanks in advance.

Answer 1

Best Answer

Answer by Regalith · Jun 09, 2014 at 07:39 PM

So the issue is that the arrays you're currently using have a set maximum size that have been allocated for them, which I'm guessing you've set in the inspector. So what you need is a type of array that is dynamic in size. I'd suggest using a list for current ships while leaving the rest static arrays so you can drag in game objects in the inspector. Here's some sample list code

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generics;
 
 private List<GameObject> currentShips;
 public GameObject[] starterShips;
 public GameObject[] advancedShips;
 public GameObject[] endShips;
 
 private int randomShip;
 
 void Start()
 {
    //Lists have to be initialized before using them
    currentShips = new List<GameObject>();
    //Add the start ships to the List
    currentShips.AddRange(starterShips);
 }
 
 void FixedUpdate () 
 {
    if (time == 60)
    {
       currentShips.AddRange(advancedShips);
       if (time == 180)
       {
           currentShips.AddRange(endShips);
       }
    }
 }

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Beizsles · Jun 09, 2014 at 07:45 PM 0

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Thank you very much, that's the exact kind of thing that I was looking for. I have a pretty patchy knowledge of Unity at the moment, so hopefully this can help me out in the long run, too. :P

Declaring an Array as a combination of multiple other arrays?

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