How do I get a CS script in assets to be a stored monobehaviour variable

Question

Hi, I'm making a game about grid cells. They can be instanciated and destroyed at will be the player.

I didn't wanted to make prefabs and wanted to find an easier way of knowing what to instanciate. So I made it create a new gameobject with a sprite renderer wich sprite is stored in a list. It worked out well but now I realise that I also need them all to have their own behaviour to simplify the managing of all the cells.

I'm having trouble knowing how to store a monobehaviour that dosen't have an instance.

Can you guys help me out?

Answer 1

Answer by andrew-lukasik · Jul 21, 2020 at 03:19 PM

Do you mean how to create a non-MonoBehaviour class instances inside a MonoBehaviour?

 public class MyGridScript : MonoBehaviour
 {
     public List<CellState> cells = new List<CellState>();
 }
 
 [System.Serializable]
 public class CellState
 {
     public SpriteRenderer spriteRenderer = null;
     public bool alive = true;
     public void Kill ()
     {
         if( !this.alive ) return;
         this.spriteRenderer.enabled = false;
         this.alive = false;
     }
 }

EDIT:

This is how you can serialize list of scripts as AssemblyQualifiedNames , and then convert them all to actual Components on GameObject

 [Tooltip("EXAMPLES: \"UnityEngine.MeshFilter, UnityEngine.CoreModule\" and \"MyNewScript, Assembly-CSharp\"")]
 [SerializeField] List<string> components = new List<string>(){ "UnityEngine.MeshFilter, UnityEngine.CoreModule" , "UnityEngine.MeshRenderer, UnityEngine.CoreModule" };

 void Start ()
 {
     foreach( var str in components )
     {
         gameObject.AddComponent( System.Type.GetType(str) );
     }
     // Debug.Log( typeof(MyClassName).AssemblyQualifiedName );// prints valid names you can use
 }

 #if UNITY_EDITOR
 void OnValidate ()
 {
     foreach( var str in components )
     {
         var t = System.Type.GetType(str);
         if( t==null )
             Debug.LogWarning($"\'{str}\' gives no type");
         else if ( !t.IsSubclassOf(typeof(Component)) )
             Debug.LogWarning($"\'{str}\' is not a Component");
     }
 }
 #endif

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jmailloux11 · Jul 21, 2020 at 06:46 PM 0

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No, I mean that each cell can have its own script, Wich will be given to it upon instanciating.

I would like to have a list for all the scripts needed upon instanciation.

Thanks for responding btw.

andrew-lukasik jmailloux11 · Jul 21, 2020 at 08:16 PM 0

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This sounds like you need some kind of permutation of factory pattern

jmailloux11 · Jul 21, 2020 at 06:51 PM 0

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$$anonymous$$aybe I'm stupid and there is now way a script asset can be stored at a list, but if there is tell me. This would help a lot.

PS: I basically need a list for multiple different script asset so I'm using a "$$anonymous$$onobehaviour" list.

andrew-lukasik jmailloux11 · Jul 21, 2020 at 08:17 PM 0

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Storing references to script assets is of no use as those are just text source files

andrew-lukasik jmailloux11 · Jul 21, 2020 at 08:22 PM 0

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System.Type can be used to represent scripts and can be stored in a list too: List<System.Type> - but those must be (de)serialized manually tho.

andrew-lukasik · Jul 21, 2020 at 09:11 PM 0

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@jmailloux11 Above I added an example of how you can create a list of scripts

jmailloux11 · Jul 21, 2020 at 09:56 PM 0

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Can I debug if any names are invalid?

Also thanks for all your helpfull answers!

andrew-lukasik jmailloux11 · Jul 21, 2020 at 10:57 PM 0

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Yes. See OnValidate method I just added

jmailloux11 · Jul 21, 2020 at 10:08 PM 0

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Thanks a lot you've just made my day, I way stuck on that for way to long.

Your Solution works perfectly!

How do I get a CS script in assets to be a stored monobehaviour variable

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