Resolved how to transfer data between mono obj with ecs runtime

i can change authoring data by editor inspector windows,so i want change authoring data via script

Code (CSharp):

1. public class GameConfigAuthoring : UnityEngine.MonoBehaviour
2. {
3.     public UnityEngine.GameObject EnemyPrefab;
4.  
5.     public int EnemyCount;
6.  
7.     public float EnemyActiveRadius;
8.  
9.     private static GameConfigAuthoring _Instance;
10.     public static GameConfigAuthoring Instance
11.     {
12.         get => _Instance;
13.     }
14.     private void Awake()
15.     {
16.         _Instance = this;
17.     }
18.  
19.  
20. }
21.  

I tried to use a singleton, but this doesn't work, the awake function is not triggered, so the singleton is an empty object
so my question is that, how to transfer data between mono obj and ecs runtime??

 

You need to either access the gameobject from the entity. (

)

You can use class IComponentData (not struct) to keep a reference to a Monobehaviour "on" an entity.

Or acces an entity from the game object. (

)

You can get a reference to the world for the static reference World

World.DefaultGameObjectInjectionWorld

.

Then using wuery you can do whetever you need, like acessing a singleton :

Code (CSharp):

1.         EntityQuery q =  World.EntityManager.CreateEntityQuery(new EntityQueryDesc()
2.         {
3.             All = new ComponentType[] { ComponentType.ReadOnly<ICOMPONENT>() }
4.         });
5.         if(q.TryGetSingleton<ICOMPONENT>(out var singleton)){
6.             // Do stuff
7.         }
8.         q.GetSingletonEntity();

 

thx,
I found another way to change runtime data

Code (CSharp):

1.  EntityManager em = World.DefaultGameObjectInjectionWorld.EntityManager;
2.             var query = em.CreateEntityQuery(typeof(GameConfig));
3.             NativeArray<Entity> entities = query.ToEntityArray(Allocator.Temp);
4.             if (entities.Length == 1)
5.             {
6.                 var entity = entities[0];
7.                 var gameConfig = em.GetComponentData<GameConfig>(entity);
8.                 em.AddComponentData(entity, new GameConfig
9.                 {
10.                     EnemyCount = gameConfig.EnemyCount + 500,
11.                     EnemyPrefab = gameConfig.EnemyPrefab,
12.                     EnemyActiveRadius = gameConfig.EnemyActiveRadius
13.                 });
14.             }

 

That's the same thing has my last code block.
You are essentially referencing a singleton entity that has the GameConfig component and setting it's value.
What you do in the if statement makes no sense to me.
You get a component from an entity to add the same new component and just add 500 to the enemy count.
You could just get the singleton component and increments the enemy count value.

 

thx, the singleton is better than my code