actionscript-3 - AS3: Perform action in intervals based on incrementing int

Question

So as not to complicate my question, I won't involve the context, but basically let's say I have a variable:

var foo:int;

And 'foo' is constantly incrementing, how would I be able to perform a function every 300 increments (300,600,900, etc) of 'foo'?

Cheers

EDIT: Also worth mentioning, the number can occasionally skip numbers as it is a rounded version of a decimal number that is incrementing

Answer 1

将其设为私有变量并仅使用这些访问器方法访问它怎么样：

function getFoo():int {
    return foo;
}

function setFoo(newFoo:int):void {
    if (newFoo % 300 > foo % 300) performAction();
    foo = newFoo;
}

当然，您也可以添加方便的方法incrementFoo(increment:int)。

对于可能的语法错误，我们深表歉意。好久没用AS3了。