On the T-38A Talon, the nose landing/taxi light extends only when both the position (nav) lights are on, and the gear is extended. When both conditions are TRUE, the light housing extends slowly (about 10 seconds), and retracts at the same speed.For some reason (probably due to advanced senility), I can't get this working properly.

  <PartInfo>    <Name>T38_LandingLight</Name>    <AnimLength>100</AnimLength>    <Animation>      <Parameter>        <Code>          (A:LIGHT NAV,bool) (A:GEAR POSITION, percent) ceil 100 == and          100 *        </Code>      </Parameter>      <Lag>20</Lag>    </Animation>  </PartInfo>

Any ideas why it's snapping instantly open/closed? :(

Answering my own question for the possible benefit of someone who might actually read this question:The problem was the position of the <Lag> parameter in the script's hierarchy:

  <PartInfo>     <Name>T38_LandingLight</Name>     <AnimLength>100</AnimLength>     <Animation>       <Parameter>         <Code>           (A:LIGHT NAV,bool) (A:GEAR POSITION, percent) ceil 100 == and           100 *         </Code>         <Lag>20</Lag>      </Parameter>      </Animation>   </PartInfo>

Answering my own question for the possible benefit of someone who might actually read this question:The problem was the position of the <Lag> parameter in the script's hierarchy:

  <PartInfo>     <Name>T38_LandingLight</Name>     <AnimLength>100</AnimLength>     <Animation>       <Parameter>         <Code>           (A:LIGHT NAV,bool) (A:GEAR POSITION, percent) ceil 100 == and           100 *         </Code>               </Parameter>      </Animation>   </PartInfo>

Answering my own question for the possible benefit of someone who might actually read this question:The problem was the position of the <Lag> parameter in the script's hierarchy:

  <PartInfo>     <Name>T38_LandingLight</Name>     <AnimLength>100</AnimLength>     <Animation>         <Parameter>         <Lag>20</Lag>             <Code>              (A:LIGHT NAV,bool) (A:GEAR POSITION, percent) ceil 100 == and             100 *             </Code>        </Parameter>      </Animation>   </PartInfo>

Does that work as well? :)

Not really. The <Lag> must be contained within the <Parameter> tags and after the <Code> tags. It makes no sense to try to apply a <Lag> before the <Code> is executed... :(