[Yasahiro]

You could store the objectids in an array when the objects are created.

Код:

new objectIDArray[5000]; // change 5000 to whatever your max objects is.
...
new model = 700;
new id = CreateObject(model, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
objectIDArray[id] = model;

Something along those lines.