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Question by Edska · Jan 11, 2015 at 12:41 PM · variablescomponent

Passed variable clears in other component

Hello. I have strange problem. I pass variable "pointsList" to my other component and then I clear that "pointList" variable.

 selectedObject.GetComponent(baseScript).setPath(pointsList);
 pointsList.Clear();

I use that "pointList" variable like so:

 function setPath(p : Array){    
     path = p;
     c = 0;
     moves = true;    
 }

Strangest thing is that when I clear my "pointsList" variable, it instantly clears "path" variable in that "selectedObject" component script. Any ideas why they are synchronized between each other?

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Answer by tanoshimi · Jan 11, 2015 at 12:57 PM

Arrays (like all objects) are reference types - you're not passing the actual pointsList array to your setPath method, but merely a reference to where the data is stored in memory. Modifying the contents of that data will affect the "original" (i.e. only) copy.

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avatar image richyrich · Jan 11, 2015 at 04:59 PM 0
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Arrays (like all objects) are reference types

Are you sure you meant this? Objects made from Structs are not reference, but value types.

http://msdn.microsoft.com/en-GB/library/ms173110.aspx

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