How do i make check if a variable changed

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Like, can i make something like this?

 if (A && ~A) {}

with ~A as being if A has changed. I see this in Garry's Mod E2 and its useful, but i don't know how to use something like this in Unity JScript.

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Answer by Waz · Aug 09, 2011 at 12:09 AM

No, there is nothing like that in JavaScript or C# with Unity.

Perhaps the closest you can get is a setter function in C#, but if you explain why you actually want this, there is probably a simpler and more obvious explanation of how to achieve what you want (in particular, what is changing the variable?)

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lenyeto · Aug 09, 2011 at 12:56 AM 0

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Well, i want to have somthing like. if (Players$$anonymous$$ouse1 && Player$$anonymous$$ouse1(Has Changed)) { Use()} basicly, so you cant just hold down mouse1 to use something a lot.

Waz · Aug 09, 2011 at 11:18 AM 0

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That's just the Get$$anonymous$$ouseDown event, so Unity already gives you what you need. In general, I have seen here that it's more effective to ask about the specific issue, and get a general answer, than to try to guess a possible general answer and ask about that.

Answer 2

Answer by khoramsql2008 · Nov 01, 2013 at 04:17 PM

as Waz said you can identify one Boolean for instance MouseIsDown becomes True when GetMouseDown is called and becomes False when GetMouseUp is called. then you can refer to this variable to judge for you.

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How do i make check if a variable changed

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