How should i create & add components to a gameobject in a loop?

Hello,
I'm trying to add some more functionality to a script and im confused on how to use instantiate. I have an OnEntityCreated callback and a switch statement, and i need to create a gameobject & give it some components depending on what part of the switch statement it went to. Do i need to create a prefab and use that or should i create an empty gameobject and add the components like that? thanks

Code (CSharp):

1. void OnEntityCreated(BSPLoader.EntityInstance instance, List<BSPLoader.EntityInstance> targets) {
2.             Debug.Log("Creating \"" + instance.entity.ClassName + "\" at \"" + instance.entity.Origin + "\" raw obj: " + instance.entity);
3.             //GameObject model = FindModel(instance.entity.Model);
4.             GameObject model = AssetDatabase.LoadAssetAtPath<GameObject>(instance.entity.Model);
5.             model = AssetDatabase.LoadAssetAtPath<GameObject>(instance.entity.Model);
6.             Instantiate(model, instance.entity.Origin, Quaternion.identity);
7.             switch (instance.entity.ClassName)
8.             {
9.                 case "func_door":
10.                    
11.                     break;
12.                 case "func_button":
13.                    
14.                     break;
15.                 case "ambient_generic":
16.                    
17.                     break;
18.                 case "prop_physics":
19.                  
20.                     break;
21.                 case "prop_dynamic":
22.                    
23.                     break;
24.                 case "npc_security_camera":
25.  
26.                    
27.                     break;
28.                 case "func_light":
29.                    
30.                     break;
31.                 case "default":
32.                     Debug.LogWarning("No matches for " + instance.entity.ClassName + " in the switch statement");
33.                     break;
34.             }
35.          
36.     }

 

Instantiate returns the object that was created, so use that. AddComponent also returns the component you just added, so you can set values to it.

Code (csharp):

1.  
2. GameObject instance = Instantiate(model, instance.entity.Origin, Quaternion.identity);
3.  
4. // for example:
5. switch (instance.entity.ClassName)
6. {
7.    case "func_light":
8.        Light light = instance.AddComponent<Light>();
9.        light.intensity = // however you're reading the value from the file
10.                    
11.        break;
12. }
13.  

You might be a little in over your head though trying to mod / re-create another game or whatever you're doing here exactly.