Unity Engine documentationScript ReferenceUnity.U2D.PhysicsPhysicsEventsPhysicsEvents.PreContinuousEventnormalThe surface normal at the predicted point of impact.阅读时间1 分钟最后更新于 2 个月前Definition Type: Property Namespace: Unity.U2D.Physics Assembly: UnityEngine.PhysicsCore2DModule public Vector2 normal { get; }