UPROPERTY宏、属性说明符和元数据说明符

UPROPERTY()

作用是利用反射将属性暴露在蓝图中用以和蓝图交互

//仅在类默认设置可见
UPROPERTY(VisibleDefaultsOnly)
int32 VisibleDefaultsOnlyInt;

//仅在实例化细节面板可见
UPROPERTY(VisibleInstanceOnly)
FString VisibleInstancestring;

//类默认设置和实例化细节面板都可见
UPROPERTY(VisibleAnywhere)
FVector VisibleAnywhereVector;

//仅在类默认设置里面编辑
UPROPERTY(EditDefaultsOnly)
int32 EditDefaultsonlyInt;

//仅在实例化细节面板编辑
UPROPERTY(EditInstanceOnly)
FString EditInstanceOnlystring;

//类默认设置和实例化细节面板都可以编辑
UPROPERTY(EditAnywhere)
FVector EditAnywhereVector;

//仅仅在蓝图中可读
UPROPERTY(EditAnywhere,BlueprintReadOnly)
int32 BlueprintReadOnlyInt;

//在蓝图中可读可写即可以获取和设置变量
UPROPERTY(EditAnywhere,BlueprintReadWrite）
int32 BlueprintReadWriteInt;

Category目录说明符

UPROPERTY(EditAnywhere,BlueprintReadWrite,Category="MyIntValue")
int32 Value1;
UPROPERTY(EditAnywhere,BlueprintReadWrite,Category ="MyIntValue | MySubIntValue")
int32 Value2:

meta元数据说明符

//DisPlayName别名
UPROPERTY(EditAnywhere,BlueprintReadWrite,meta=(DisplayName ="MyValue3DisplayName"))
int32 MyValue3;

//EditCondition条件控制编辑，条件控制可编辑性
UPROPERTY(EditAnywhere,BlueprintReadWrite,meta=(DisplayName ="Controller"))
bool isController:
UPROPERTY(EditAnywhere,BlueprintReadWrite,meta=(EditCondition="isController"))
float value3;

//Tooltip解释说明我们的变量
UPROPERTY(EditAnywhere,BlueprintReadWrite,meta =(ToolTip ="isControllerTrue"))
bool isTrue;