当用户单击 GUIElement 或 Collider 并仍然按住鼠标时,将调用 OnMouseDrag。
在按住鼠标按钮的情况下,每帧调用一次 OnMouseDrag。
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { public Renderer rend;
void Start() { rend = GetComponent<Renderer>(); }
void OnMouseDrag() { rend.material.color -= Color.white * Time.deltaTime; } }
在属于 Ignore Raycast 层的对象上,不调用该函数。
当且仅当 Physics.queriesHitTriggers 为 true 时,才在标记为触发器的碰撞体上调用该函数。
OnMouseDrag 可以作为协同程序使用 - 在函数中使用 yield 语句即可。
该事件将发送到附加到 Collider 或 GUIElement 的所有脚本。
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