c# - Unity - 如何将运行时源添加到 ParentConstraint

Question

如何在运行时将 GameObject(或 Transform ->object.transform)添加到父约束组件？ https://docs.unity3d.com/ScriptReference/Animations.ParentConstraint.html

在检查器中，Unity 显示父控件组件采用变换作为源，如下图所示。在代码中，ParentConstraint.AddSource 需要一个 ConstraintSource 对象。但尝试在代码中执行此操作时，它会提示constraintSource不能是Transform

! https://drive.google.com/open?id=1YOdCQj6MWKgZkgfkaw0DDV5SlI_Apd35

ConstraintSource mySource = m_RealObjOnPlane.transform;//error - can't convert Transform to Animations.ConstraintSource

Xaxis.GetComponent<ParentConstraint>().AddSource(mySource);//AddSource only takes a ConstraintSource 

期望我可以在运行时更改父控件的来源

Answer 1

ConstraintSource constraintSource;
void Start()
{
    var go = new GameObject("Source");

    var cube = GameObject.CreatePrimitive(PrimitiveType.Cube);
    var parentConstraint = cube.AddComponent<ParentConstraint>();
    constraintSource.sourceTransform = go.transform;
    parentConstraint.AddSource(constraintSource);
}

所以在你的情况下，应该是这样的

mySource.sourceTransform = m_RealObjOnPlane.transform;