Types and Properties Meta

When writing C++ classes, filling in the appropriate types and properties Meta according to the specification controls whether the properties can be edited in the Editor, how they interact with the Property Editor and with the serialization mechanism (whether they are saved, whether to skip serialization, etc.).

    DECLARE_PROPERTY (bool, LModelComponent, IfOverrideTexPaths, 
        GetIfOverrideTexPaths, SetIfOverrideTexPaths, EditAnywhere, 
        EditorType = CheckBox, Category = Render);
    
    DECLARE_PROPERTY(const char*, LModelComponent, OverrideTexPaths, 
        GetOverrideTexPaths, SetOverrideTexPaths, EditAnywhere,
        EditorType = FileControl, Category = Render, FileFilter = Directory
        EditCondition = IfOverrideTexPaths);

Properties

Metakey	MetaValue	Definition	Note
EditAnywhere		Read-Write in Editor	If these two Metakeys are not set, the default Editor will not see this property
VisibleAnywhere		Read only in Editor (Read control to be implemented), or the Object property is revisable, Container Object indicates that Container itself is non-revisable
Category	Arbitrary English Character	Property types	Use|to split parent-child classification, space is not allowed in the split and names after spliting
EditorType	CheckBox	Box control	If the Metakey is not set, it will be automatically matched according to the property type boolean = CheckBox string = Edit float, double = FloatEdit enum = ComboBox array = ArrayPod
	Edit	Text control
	FloatEdit	Floating value Control
	DegreesEdit	Edit radians in Angle mode, the Editor displays the Angle, the actual property of the object is radians
	AssetEdit	Asset control (File control + preview)
	FileControl	File control
	ColorEdit	Color control
	TextureEdit	Mapping control
	ComboBox	Drop-down box control
	CustomProperty	Custom control, usually utilized with "CustomType"
CustomType		Specific custom control types
FilePath	When EditorType=AssetEdit or FileControl, it determines the value and sets the root path of the selection window	Such as "Project" "Computer" "Rseource"
FileFilter	When EditorType=AssetEdit or FileControl, it determines the value and matches the script enumeration file type	See public_property FILE_FILTER table
ValueList	When EditorType=ComboBox, the value will be obtained，which could be arbitrary number or English character, reserve |	Represent each item in the drop-down menu	use | to split values
ValueListMethod	When EditorType=ComboBox, the value will be obtained, which could be arbitrary number or English character	If there is no ValueList, ValueListMethod will be found, get the drop-down menu item by calling the function defined by method
Decimals	Decimal precision, which can be any non-negative frame number
ClampMin	Minimum value to set
ClampMax	Maximum value to set
EditorGroup	Edit control group	Arbitrary character
EditorGroupIndex	Edit control group index	Index start from 0
RelevantProperty	Associated properties	After setting this Meta, when this property is modified, it will automatically update the control associated with the property (rebuild the associated control).	use| to split values
Text	Translation of properties	Set the key of the translation to match the xxx.idres file in the Engine and display the property name in the Editor
GetName	Arbitrary English Character	Provide diversified naming method for object properties in containers (building property trees with the same name will override)
ReplicatedName	Arbitrary English Character, | is the reserved character	Corresponding property name of the server
OnReplicated	Arbitrary English Character, | is the reserved character	Property value callback function
SubclassOf	Arbitrary English Character, | is the reserved character	Lclass type of property value
SkipSerialization		Skip serialization
Transient		Skip saving
DuplicateTransient		Skip duplication
NonPIEDuplicateTransient		Skip non-PIE duplication
VisibleCondition	Display condition	This property will be displayed only when the value of the conditional property satisfies the expression
EditCondition	Edit condition	This property can be edited only when the value of the conditional property satisfies the expression
Order	Integer value	Properties are sorted by priority, prioritize property with higher value
KindOfActor	String, which matches the name of a subtype of LActor	List all KindoFactor-tagged actors in the level into a ComboBox for the user to choose from	Property type must be PERSISTID
Loop		Property values loop between maximum and minimum values
HintText	String	Property control prompts with text information
KindOfComponent	String, format: KindOfComponent = "LVoxelTerrainActor. LPlanetAtmosphereComponent"	Example: List the LPlanetAtmosphereComponent type components, which belong to the LVoxelTerrainActor under the Actor into a ComboBox, for users to select from	Property type must be PERSISTID
ShowName	Specify a custom name when displaying non-key names for elements currently used in the container	A property name of the element itself
Element_OneLine	Container element shows in single line
NetProperty	Network sync property	The property of the Actor will be synced by the network server when this Metakey is marked
NetPropertyAll	Network sync all properties	All the properties of the Actor will be synced by the network server when this Metakey is marked
NetPropertyCondition	Conditions for Network sync property	Network sync conditions are classified into Private and Public modes, Public is the default condition and will be synced to all clients, while Private will only be synced to the client of the master control player
NetPropertyNotify	Notify of network sync property	The specified notify function will be triggered when the client property is synced
StoreProperty	Network store property	The properties will be stored by the server when this Metakey is marked. Currently only for player object

Note: No space is allowed while using| to split strings

Entities

Metakey	MetaValue	Definition	Note
EditorVisible		Visible or not in the Editor	If the Metakey is not set, the entity is not visible to the Editor by default
Category	Arbitrary English Character, | is the reserved character	Property type, using | to split sub-type (to be implemented)
OnlyShowSelf		Display its own properties only	Display its own properties only，not properties inherited from the parent
Prefabable		Allow prefab base type or not	If the Metakey is not set, this type is not visible when the Editor is selecting base type to create prefab
DisableMarqueeSelect		Allow marquee selection or not	With this Metakey, the Editor will ignore this type of Object for Marquee selection
HideProperty，HideCategory	String	Types of properties that need to be hidden, category (Suggestion: For Engine developer to use, use hidden config file to implement during project development)
TranslationVisible		The translation is visible or not	The Editor can edit the translation of this entity only when this Metakey is set
ServerClass	Server class	Declared GameObject class, which corresponds the class on the server	Used in non-component servers only