IComponentData not blittable

I'm getting weird error message:

Code (CSharp):

1. ArgumentException: Components.EntitySpawnerData is an IComponentData, and thus must be blittable (No managed object is allowed on the struct).
2. Unity.Entities.TypeManager.BuildComponentType (System.Type type) (at Library/PackageCache/com.unity.entities@0.0.12-preview.23/Unity.Entities/Types/TypeManager.cs:499)

This is how component data is defined:

Code (CSharp):

1. [Serializable]
2.     public struct EntitySpawnerData : IComponentData {
3.         public bool SpawnOnTap;
4.         public bool SingleEntity;
5.         public bool HasEntityAttached;
6.         public float EntitySpawnDelay;
7.         public float LastSpawnTime;
8.     }

What am I missing? Do I need to use StructLayout + Explicit because data has 11 bytes?

 

I think that "bool" type is not supported currently.
https://forum.unity.com/threads/alternative-to-boolean-in-icomponentdata-blittable-datatypes.523986/

 

Right, just found out from here about that:
https://gametorrahod.com/unity-ecs-know-your-blittable-types-360b8f9a7f4a

Jeez that is not obvious.

 

@Kichang-Kim linked my post, here is the solution of that and a PropertyDrawer for the inspector! Have fun

Code (CSharp):

1. using System;
2. using UnityEngine;
3.  
4. [Serializable]
5. public struct boolean {
6.     [SerializeField] private byte boolValue;
7.  
8.     public boolean(bool value) {
9.         boolValue = (byte)(value ? 1 : 0);
10.     }
11.     public static implicit operator bool(boolean value) {
12.         return value.boolValue == 1;
13.     }
14.     public static implicit operator boolean(bool value) {
15.         return new boolean(value);
16.     }
17.  
18.     public override string ToString() {
19.         return ((bool)this).ToString();
20.     }
21. }

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEditor;
5.  
6. [CustomPropertyDrawer(typeof(boolean))]
7. public class booleanPropertyDrawercs : PropertyDrawer {
8.  
9.     public override void OnGUI(Rect position, SerializedProperty property, GUIContent label) {
10.         var booleanProp = property.FindPropertyRelative("boolValue");
11.         booleanProp.boolValue = EditorGUI.Toggle(position, label, booleanProp.boolValue);
12.     }
13. }

 

Lol, I've just made the same thing:
https://forum.unity.com/threads/bool1-gone-in-preview-4.532814/#post-4140226

 

I saw a sample somewhere from unity about that

Do it this way:
[Serializable]
public struct EntitySpawnerData : IComponentData {
public Carrier Value;
}

[Serializable]
public struct Carrier
{
public bool SpawnOnTap;
public bool SingleEntity;
public bool HasEntityAttached;
public float EntitySpawnDelay;
public float LastSpawnTime
}

 

If you can adjust your logics, you could also do:

public bool3 boolValues;
public float2 floatValues;