Value Type: Difference between revisions

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== In FrooxEngine ==
== In FrooxEngine ==
It's simple to tell whether a certain type is a value type or not within FrooxEngine. In the [[Scene Inspector]], fields holding a value type are easily identifiable by the ability to directly edit the value within them, rather than needing to drag in a reference to the type. A [[Component:ValueField|ValueField]] component is able to hold any FrooxEngine value type, which can be used as a quick reference to tell what is what.
What types are defined as value types in FrooxEngine are managed through a complicated autogenerated class called <code>Coder<T></code>. As such, it is much better to refer to the category for determining what is a value type in FrooxEngine.
 
It's simple to test whether a certain type is a value type or not. In the [[Scene Inspector]], fields holding a value type are easily identifiable by the ability to directly edit the value within them, rather than needing to drag in a reference to the type. A [[Component:ValueField|ValueField]] component is able to hold any FrooxEngine value type, which can be used as a quick reference to tell what is what.


== In ProtoFlux ==
== In ProtoFlux ==
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To expand on the definition, in ProtoFlux, an ''unmanaged type'', or value type, must either (criteria not useful to Resonite excluded):
To expand on the definition, in ProtoFlux, an ''unmanaged type'', or value type, must either (criteria not useful to Resonite excluded):


* Be one of <code>sbyte</code>, <code>byte</code>, <code>short</code>, <code>ushort</code>, <code>int</code>, <code>uint</code>, <code>long</code>, <code>ulong</code>, <code>char</code>, <code>float</code>, <code>double</code>, <code>decimal</code>, or <code>bool</code>.
* Be one of <code>[[Type:sbyte|sbyte]]</code>, <code>[[Type:byte|byte]]</code>, <code>[[Type:Short|short]]</code>, <code>[[Type:ushort|ushort]]</code>, <code>[[Type:int|int]]</code>, <code>[[Type:uint|uint]]</code>, <code>[[Type:long|long]]</code>, <code>[[Type:ulong|ulong]]</code>, <code>[[Type:char|char]]</code>, <code>[[Type:float|float]]</code>, <code>[[Type:double|double]]</code>, <code>[[Type:decimal|decimal]]</code>, or <code>[[Type:bool|bool]]</code>.
* Be an [[Enum]] type.
* Be an [[Enum]] type.
* Be defined as a non-nullable <code>struct</code> internally that only contains other value types.
* Be defined as a non-nullable <code>struct</code> internally that only contains other value types.
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This discrepency between the definition of a value type in FrooxEngine and in ProtoFlux can cause some confusion. For example, a [[Type:string|string]] is a value type in FrooxEngine, but an object type in ProtoFlux. This is also the case with nullable types.
This discrepency between the definition of a value type in FrooxEngine and in ProtoFlux can cause some confusion. For example, a [[Type:string|string]] is a value type in FrooxEngine, but an object type in ProtoFlux. This is also the case with nullable types.
In short, every value type in ProtoFlux is also a value type in FrooxEngine, but not every value type in FrooxEngine is a value type in ProtoFlux.
== See Also ==
* [[Reference Type]]
* [[Type:Object]]

Revision as of 10:10, 11 September 2024

A Value Type is a delegation of types within the FrooxEngine Data Model and ProtoFlux. In contrast to Reference Types, fields containing a value type store the value directly, rather than a reference to the value.

For a list of all value types in game, refer to Category:Value Types.

In FrooxEngine

What types are defined as value types in FrooxEngine are managed through a complicated autogenerated class called Coder<T>. As such, it is much better to refer to the category for determining what is a value type in FrooxEngine.

It's simple to test whether a certain type is a value type or not. In the Scene Inspector, fields holding a value type are easily identifiable by the ability to directly edit the value within them, rather than needing to drag in a reference to the type. A ValueField component is able to hold any FrooxEngine value type, which can be used as a quick reference to tell what is what.

In ProtoFlux

In ProtoFlux, in short, if a type can be classified as an unmanaged type in C#, it is recognized as a value type. Otherwise, it is an Object Type.

To expand on the definition, in ProtoFlux, an unmanaged type, or value type, must either (criteria not useful to Resonite excluded):

This discrepency between the definition of a value type in FrooxEngine and in ProtoFlux can cause some confusion. For example, a string is a value type in FrooxEngine, but an object type in ProtoFlux. This is also the case with nullable types.

In short, every value type in ProtoFlux is also a value type in FrooxEngine, but not every value type in FrooxEngine is a value type in ProtoFlux.

See Also