对于editorWindow,Time.deltaTime不起作用,所以需用下面方法对update进行计时:
public class myEditorWindow : EditorWindow{ public float m_lastUpdateTime=0; public myEditorWindow(){ wantsMouseMove = true; }
public void Update(float dt){
//to do
}
private void Update()
{ float curTime = Time.realtimeSinceStartup; m_lastUpdateTime = Mathf.Min (m_lastUpdateTime, curTime);//very important!!!float dt=curTime-m_lastUpdateTime;
Update(dt);
m_lastUpdateTime = curTime; }
}
其中m_lastUpdateTime = Mathf.Min (m_lastUpdateTime, curTime)一句非常重要,如果不加这句,将导致重大bug。
假设不加这句,试想假如当前curTime=1000.02,而m_lastUpdateTime=1000,则dt=curTime-m_lastUpdateTime=0.02,恰在此时,我们按下unity的play按钮,则下一次Update时curTime变为0,m_lastUpdateTime=1000.02,则dt=curTime-m_lastUpdateTime=-1000.02,是错的。