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How can you tell if a LayerMask contains a given layer.

Answer 1

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var layermask : LayerMask;
var layer : int;

function Start () {
    if (layermask.value & 1<<layer) {
        Debug.Log ("Layer is in layer mask");
    }
}

answered Mar 03 '11 at 02:54 AM

Eric5h5
80.1k ● 41 ● 132 ● 519

I'm not sure how to get this working. Is the & supposed to be &&? I'm also writing in C# (Forgot to mention that). What return values am I checking for on either side of the &?

Mar 03 '11 at 03:53 AM Patyrn

Figured it out. Thanks!

if ((layersCheckedForTargets.value & <<layer) == 0) {}

Mar 03 '11 at 03:59 AM Patyrn

Er sorry for my application I needed to see if it was NOT in layer mask. Above would be != if you wanted to check if it WAS in layer mask.

Mar 03 '11 at 04:00 AM Patyrn

Yeah, C# doesn't seem to cast to bool automatically like that.

Mar 03 '11 at 05:34 AM Eric5h5

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