How to get size property like Vector 3?

Questions & Answers
1

How can i get the size or length of property like vector3?

my problem is when i do like this :

do
{
     SerializedProperty property = soTarget.FindProperty(Prop.name).Copy();
     // this was fine for float, string and etc that have 1 property
     // but when property.type is Vector3, in the next iteration it will be error 
     // cause can't finding x, y, z(Properties of Vector3)
}
while (Prop.NextVisible(true));

now i do manualy like these:

private SIZE_OF_TYPE GetCountByProperty(SerializedProperty property)
{
    if (property.propertyType == SerializedPropertyType.Vector3)
    {
        return SIZE_OF_TYPE.Vector3;
    }
    return SIZE_OF_TYPE.Default;
}

 enum SIZE_OF_TYPE { 
    Default = 0,
    Vector3 = 3,
}

but how to get it automatically (doesn’t define one by one by self)?

2

GameObject.Transform.LocalScale
Should work.

3

Try the Type.GetFields() and Type.GetProperties() methods. You’ll need to use System and System.Reflections namespaces.

Type myType = typeof(Vector3);
FieldInfo[] fields = myType.GetFields();
PropertyInfo[] properties = myType.GetProperties();
int amountOfFieldsVector3 = fields.Length;
int amountOfPropertiesVector3 = properties.Length;

Not sure if that will work though, because the Vector3 is not a class but a structure.
Info about GetFields(): Type.GetFields Method (System) | Microsoft Learn

About GetProperties(): Type.GetProperties Method (System) | Microsoft Learn

4

There’s no real correct way to do this, however one way I can think would be to count the actual bytes in the struct and compare them with the size of a single element;

public static int NumberOfElements (System.Type a_ObjectType, int a_SizeOfOneElement)
{
    //Use marshalling to get the size of an allocation for this type (Vector3 would be 3 * sizeof (float)
    int objectSize = System.Runtime.InteropServices.Marshal.SizeOf (a_ObjectType);
    //Divide by the size of a single element to get the number of elements
    return objectSize / a_SizeOfOneElement;
}

...

//The Vector classes are made up of floats, so pass that as the size of an element
int elementCount = NumberOfElements (System.Type.GetType (property.type), sizeof (float));

Haven’t tested this, but I can’t think of any other way really ( @Ermiq has the most ‘correct’ method, but the Vector classes’ fields don’t necessarily map the way you might expect).