Some help with Fuel Selector bug

[wallydog69]

So I have a simple fuel selector gauge animated and coded along with a visual tag to initiate the selector but keep seeing this bug.

The fuel draw upon loading the aircraft always comes from my center 2 tank regardless of the position of the selector. Only after I mouse click and change selector position does the draw come from the appropriate tank. There are only 3 positions (OFF, Center 2, Center 1). Also upon loading the aircraft, fuel will continue to draw from Center 2 until empty and then begin drawing from Center 1 instead of cutting off. Turning the switch remedies this and the switch works as designed but not sure why this happens to a a newly loaded aircraft with a fuel selector untouched.

Below is my code. and Center1 and Center2 tanks are defined in the .cfg

Any help greatly appreciated

    <PartInfo>
    <Name>aircraft_initialize_fuel</Name>
    <Visibility>
      <Parameter>
        <Code>
          (L:myplane_init, bool) 0 ==
          if{
            0 (>L:fuel switch, enum)
            1 (>L:myplane_init, bool)
           and }
        </Code>
      </Parameter>
    </Visibility>
    </PartInfo>
    <PartInfo>
    <Name>aircraft_fuel_selector</Name>
    <AnimLength>120</AnimLength>
    <Animation>
      <Parameter>
        <Code>(L:fuel switch, enum) 60 *</Code>
        <Lag>100</Lag>
      </Parameter>
    </Animation>
    <MouseRect>
      <Cursor>hand</Cursor>
      <MouseFlags>WheelUp+WheelDown</MouseFlags>
      <CallbackCode>
        (M:Event) 'WheelUp' scmp 0 == if{ (L:fuel switch, enum) ++ 2 min (>L:fuel switch, enum) }
        (M:Event) 'WheelDown' scmp 0 == if{ (L:fuel switch, enum) -- 0 max (>L:fuel switch, enum) }

        (L:fuel switch, enum) 0 == if{ 0 (>K:FUEL_SELECTOR_SET) }
        (L:fuel switch, enum) 1 == if{ 7 (>K:FUEL_SELECTOR_SET) }
        (L:fuel switch, enum) 2 == if{ 6 (>K:FUEL_SELECTOR_SET) }
      </CallbackCode>
    </MouseRect>
  </PartInfo>

 

[spokes2112]

Most likely because in your ini section the L:Var is set but the selector is not.
The coding for the actual selector only occurs once clicked, IE the callback section.
Maybe give this a try for the "aircraft_initialize_fuel" part.
This will result in the aircraft being loaded with the fuel selector off.

<PartInfo>
<Name>aircraft_initialize_fuel</Name>
    <Visibility>
        <Parameter>
            <Code>
                (L:myplane_init, bool) 0 ==
                if{
                0 (>L:fuel switch, enum)
                0 (>K:FUEL_SELECTOR_SET)
                1 (>L:myplane_init, bool)
                }
            </Code>
        </Parameter>
    </Visibility>
</PartInfo>

Roman

 

[wallydog69]

Thanks Roman for the reply. I tried your code but no luck. The Selector and LVAR are both set to Off but upon startup, engine is always on and and draws from Center2. I did attempt to load the aircraft from the select aircraft menu dropdown and all seems to be working as intended, just not when loading from initial selection screen.

 

[tgibson]

You are then loading from a flight, which sets the fuel selector to the value coded in the Flight. You could try putting Romans's code into a gauge listed in the VC section of the panel.cfg file - perhaps that loads after the Flight? Not sure.

 

[Vitus]

You could set the sim's fuel selector in your animation code, rather than the callback. Also, maybe the use of > instead of > might help.

    <PartInfo>
    <Name>aircraft_fuel_selector</Name>
    <AnimLength>120</AnimLength>
    <Animation>
      <Parameter>
        <Code>
            (L:fuel switch, enum) 0 == if{ 0 (&gt;K:FUEL_SELECTOR_SET) }
            (L:fuel switch, enum) 1 == if{ 7 (&gt;K:FUEL_SELECTOR_SET) }
            (L:fuel switch, enum) 2 == if{ 6 (&gt;K:FUEL_SELECTOR_SET) }
            
            (L:fuel switch, enum) 60 *
        </Code>
        <Lag>100</Lag>
      </Parameter>
    </Animation>
    <MouseRect>
      <Cursor>hand</Cursor>
      <MouseFlags>WheelUp+WheelDown</MouseFlags>
      <CallbackCode>
        (M:Event) 'WheelUp' scmp 0 == if{ (L:fuel switch, enum) ++ 2 min (&gt;L:fuel switch, enum) }
        (M:Event) 'WheelDown' scmp 0 == if{ (L:fuel switch, enum) -- 0 max (&gt;L:fuel switch, enum) }
      </CallbackCode>
    </MouseRect>
  </PartInfo>

 

[Vitus]

Maybe one more thing: I'm not quite sure why you're using a visibility code section for your initialization? You could add the initialization to the Animation code as well, but I think the more elegant solution is to create a XML gauge with either an update section (FSX/P3D) or element (FS9) in which you use your initialization code. This way, you can have all your initializations in one place and don't get confused with your various (L:myplane_init, bool) variables you'd otherwise have to keep track of.

 

[wallydog69]

You could set the sim's fuel selector in your animation code, rather than the callback. Also, maybe the use of > instead of > might help.

    <PartInfo>
    <Name>aircraft_fuel_selector</Name>
    <AnimLength>120</AnimLength>
    <Animation>
      <Parameter>
        <Code>
            (L:fuel switch, enum) 0 == if{ 0 (&gt;K:FUEL_SELECTOR_SET) }
            (L:fuel switch, enum) 1 == if{ 7 (&gt;K:FUEL_SELECTOR_SET) }
            (L:fuel switch, enum) 2 == if{ 6 (&gt;K:FUEL_SELECTOR_SET) }
           
            (L:fuel switch, enum) 60 *
        </Code>
        <Lag>100</Lag>
      </Parameter>
    </Animation>
    <MouseRect>
      <Cursor>hand</Cursor>
      <MouseFlags>WheelUp+WheelDown</MouseFlags>
      <CallbackCode>
        (M:Event) 'WheelUp' scmp 0 == if{ (L:fuel switch, enum) ++ 2 min (&gt;L:fuel switch, enum) }
        (M:Event) 'WheelDown' scmp 0 == if{ (L:fuel switch, enum) -- 0 max (&gt;L:fuel switch, enum) }
      </CallbackCode>
    </MouseRect>
  </PartInfo>

That did the trick Vitus... Many thanks!

 

[spokes2112]

One thing about Vitus' code..
It probably will cause "constant firing" of the FUEL_SELECTOR_SET command.
Being in the model code this will occur at the sim frame rate.
IMO a no-no, specially if used in a multiplayer environment. But... a lot of quality payware designers are doing it.
The following should prevent this..

<Code>
    (L:fuel switch, enum) 0 == (A:FUEL TANK SELECTOR 1, enum) 0 != and if{ 0 (&gt;K:FUEL_SELECTOR_SET) }
    (L:fuel switch, enum) 1 == (A:FUEL TANK SELECTOR 1, enum) 7 != and if{ 7 (&gt;K:FUEL_SELECTOR_SET) }
    (L:fuel switch, enum) 2 == (A:FUEL TANK SELECTOR 1, enum) 6 != and if{ 6 (&gt;K:FUEL_SELECTOR_SET) }

    (L:fuel switch, enum) 60 *
</Code>

 

[Vitus]

That's actually a really good point! Your solution is elegant.

 

[wallydog69]

After some further tinkering, looks like what was causing my bug was that my two mdl files were not using the same code. I was only updating my interior model while the exterior model was from a previous compile.

Thanks all for all the great feedback