Custom interactive animation

[Vitus]

Hello again,

how can I code the following:
I want to have a 3D lever in the VC and by turning it, a part on the outside of the aircraft should turn as well.

I made the two <Animation name> entry in the modeldef file. Here is the partname for the outside part:

  <PartInfo>
    <Name>rotating part</Name>
    <AnimLength>100</AnimLength>
    <Animation>
      <Parameter>
        <Sim>
          <Variable>Rotating Variable</Variable>
          <Units>degrees</Units>
          <Scale>36</Scale>
        </Sim>
        <Lag>400</Lag>
      </Parameter>
    </Animation>
  </PartInfo>

But I have no idea how to program the lever.

Any ideas?

Regards from Aotearoa
Vitus

 

[Vitus]

*bump*

In the SDK is an example for "CallbackDragging" which is basically what I want to use: The user can move the lever by clicking&dragging it.
BUT: the example code triggers a KeyEvent - however I want to modify a L: variable!

I have no idea...

Vitus

 

[Vitus]

I just finished the artwork for my fuel selectors and as I can't use the default fuel tank key events due to the uncommon fuel system of the Electra, I have a similar problem here.

I want the selectors be movable by drag-and-drop but then snapping to the nearest of four (or five) positions and by that, changing the value of the corresponding enum L: variable.

Come on guys! I know you program stuff like that every day!

Regards
Vitus

 

[Vitus]

....... I will keep asking until the question is solved.



What I was able to figure out is, how to make an animated part that reacts depending on the value of a L:variable.

But I am still not able to set these value with drag&drop of a lever.


Sooooooo: please give me a hint!
Vitus

 

[andyjohnston.net]

Pop over to ffds, and grab the custom code for a drag lever. That will allow you to create the lever, then just use the exact same name for the external part. That should give you exactly what you want.

 

[Vitus]

Hi there,

I haven't produced any working code yet, but after reading the different threads in the FFDS forum and browsing through the default modeldef.xml, I think I understood the idea!

Thanks for your help - I will post a snippet here after I finally manage to implement a working example.

Regards
Vitus

 

[Vitus]

Hi there,

I promised to post something as soon as I figure it out. Because I highly participated on the tons of examples in the FFDS forum, I decided to write contribute something to this knowledge base and wrote a few lines on that topic. You can find my posting here.

But in short, here is my working code:

<PartInfo>
  <Name>big_lever</Name>
  <AnimLength>100</AnimLength>
  <Animation>
    <Parameter>
	<Code>
	  (L:BIG LEVER,number)
	</Code>
	<Lag>400</Lag>
    </Paramter>
  </Animation>
  <MouseRect>
    <Cursor>Hand</Cursor>
    <TooltipText>This is a big lever!</ToolTipText>
    <MouseFlags>LeftSingle+LeftDrag</MouseFlags>
    <CallbackCode>
	(M:Event) 'LeftSingle' scmp 0 ==
	if{
	  (M:X) (&gt;L:MOUSEPOS, number)
	  quit
	}
	(M:Event) 'LeftDrag' scmp 0 ==
	if{
	  (M:X) (L:MOUSEPOS,number) - 0.1 * (L:BIG LEVER,number) + (&gt;L:BIG LEVER,number)
	  (M:X) (&gt;L:MOUSEPOS,number)
	  (L:BIG LEVER,number) 0 &lt;
	  if{
	    0 (&gt;BIG LEVER,number)
	    quit
	  }
	  (L:BIG LEVER,number) 100 &gt;
	  if{
	    100 (&gt;BIG LEVER,number)
	    quit
	  }
	}
    </CallbackCode>
  </MouseRect>
</PartInfo>

Regards
Vitus

 

[n4gix]

Well done sir!

The best advice you've given is this, IMHO:

Instead of using lever-specific variables for the mouse status like Mariopilot does, I propose that you just define one MOUSEPOS variable for all your levers. Its better organized and this also makes your life easier regarding your copy & paste actions.

Amen! Reusable, generic variables are always the best approach. You can only move one lever at at a time anyway, so there'd never be a conflict...

 

[Vitus]

Thanks! I had very good advisers!

I would love to have a second Mouse and a second Cursor on the screen. But until then one Mouse position variable is enough

Vitus