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agl: need to check for nil

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mfranz 2007-10-07 17:09:13 +00:00
parent dfd21c722d
commit 095e3e717e
1 changed files with 1 additions and 1 deletions
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2
Nasal/screen.nas
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@ -250,7 +250,7 @@ _setlistener("/sim/signals/nasal-dir-initialized", func {
return;
if (getprop("/sim/presets/airport-id") == "KSFO" and rwy == "28R")
return;
if (getprop("/position/altitude-agl-ft") > 100)
if ((var agl = getprop("/position/altitude-agl-ft")) != nil and agl > 100)
return;
atc.setValue("You are on runway " ~ rwy);
}, 1);