RequireComponent 属性自动将所需的组件添加为依赖项。
向 GameObject 添加使用 RequireComponent 的脚本时,会自动将需要的组件添加到 GameObject 中。 这对避免设置错误非常有用。 例如,脚本可能要求始终向同一 GameObject 添加 Rigidbody。 使用 RequireComponent 可自动完成此工作,也就不会出现设置错误。 请注意,RequireComponent 只在组件添加到 GameObject 中时检查是否缺少依赖项。GameObject 缺少新依赖项的现有组件实例将不会自动添加这些依赖项。
using UnityEngine;
// PlayerScript requires the GameObject to have a Rigidbody component [RequireComponent(typeof(Rigidbody))] public class PlayerScript : MonoBehaviour { Rigidbody rb;
void Start() { rb = GetComponent<Rigidbody>(); }
void FixedUpdate() { rb.AddForce(Vector3.up); } }
RequireComponent | 需要一个组件。 |
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