MaxScript：检测对象何时被删除

Question

如果从场景中删除对象，我将如何检测（或触发一个函数）？

Answer 1

使用notifications

fn nodeDeletedCallback = 
(
    deletedObj = callbacks.notificationParam() 
    print ("Deleting: " + (deletedObj as string)) 
) 

Callbacks.addscript #nodePreDelete "nodeDeletedCallback()" id:#id_AStringYouCanUseLaterToIdentifyThisCallback