boolean (Blittable) in IComponentData struct?

According to ms documentation, Boolean is none-blittable data type.

Code (CSharp):

1. https://docs.microsoft.com/en-us/dotnet/framework/interop/blittable-and-non-blittable-types

Blittable data types

Spoiler

• System.Byte
  
  
• System.SByte
  
  
• System.Int16
  
  
• System.UInt16
  
  
• System.Int32
  
  
• System.UInt32
  
  
• System.Int64
  
  
• System.UInt64
  
  
• System.IntPtr
  
  
• System.UIntPtr
  
  
• System.Single
  
  
• System.Double

Therefore, bool data types can not be part of data component struct, with IComponentData.
How can I use booleans then, avoiding using for example bytes, or ints?
Or can I?

 

Correct, you cannot at this time but they are planning to support more types. There are several threads about the same concern IIRC.

https://forum.unity.com/threads/bool-in-icomponent-data.540470/

 

You have to write a wrapper struct, in my experience. But you can write implicit conversions so that its fairly seamless to use.

Code (CSharp):

1.    
2. public struct BlittableBool : IEquatable<BlittableBool>
3.     {
4.         private byte value;
5.  
6.         public BlittableBool(bool value)
7.         {
8.             this.value = Convert.ToByte(value);
9.         }
10.  
11.         public static implicit operator bool(BlittableBool blittableBool)
12.         {
13.             return blittableBool.value != 0;
14.         }
15.  
16.         public static implicit operator BlittableBool(bool value)
17.         {
18.             return new BlittableBool(value);
19.         }
20.  
21.         public bool Equals(BlittableBool other)
22.         {
23.             return value == other.value;
24.         }
25.  
26.         public override bool Equals(object obj)
27.         {
28.             if (ReferenceEquals(null, obj))
29.             {
30.                 return false;
31.             }
32.  
33.             return obj is BlittableBool && Equals((BlittableBool) obj);
34.         }
35.  
36.         public override int GetHashCode()
37.         {
38.             return value;
39.         }
40.  
41.         public static bool operator ==(BlittableBool left, BlittableBool right)
42.         {
43.             return left.Equals(right);
44.         }
45.  
46.         public static bool operator !=(BlittableBool left, BlittableBool right)
47.         {
48.             return !left.Equals(right);
49.         }
50.  
51.         public override string ToString()
52.         {
53.             return ((bool) this).ToString();
54.         }
55.     }

 

Thx. I need admit, I missed that one.
In the link, there are some interesting suggestions.

This looks great. Few nice methods included.
But in my opinion, this a bit misses the point of having bool via wrapper, if trying to gain on performance, since it is adding extra operation, just to get a bool. But I may be just overreacting
I presume, I would be better stick in this case with bytes?
At least for now.

 

Thx Fabrice_Lete, I shall do that for time being.
If bools ever come to light, it will be easier to track bytes down, to replace.

 

It's been 4 years and omg, I just realized its now blitable.. lmao this is why I need friends