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