Vehicle Script Assistance

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Midway Sentinel:
Hey, could someone possibly throw together a script for me? If so, I need a function that:

When the vehicle is Accelerating over 5mph or so:
-check if a variable called "isAccel" is 0. if so:
-set it to 1
-mount an image called DMTVJetStreamImage1 and one called DMTVJetStreamImage2
-play a thread called "toFly"

and then when below that speed:
-check if the variable is 1. if so:
-set the variable to 0
-unmount the image called DMTVJetStreamImage1 and the one called DMTVJetStreamImage2
-play a thread called "toIdle"

this is probably a lot to ask of people... but i cant get mine to work:

--- Code: ---function vehicle::onSpawn(%obj,%velocity)
{
if(vectorLen(%obj.getVelocity()) > 1)
{
%obj.mountImage(DMTVJetStreamImage1,0);
%obj.mountImage(DMTVJetStreamImage2,1);
%obj.playThread(0,"toFly");
return %p;
}

if(vectorLen(%obj.getVelocity()) < 1)
{
%obj.unMountImage(DMTVJetStreamImage1,0);
%obj.unMountImage(DMTVJetStreamImage2,1);
%obj.playThread(0,"toIdle");
return %p;
}
}

--- End code ---
I copied various code sections from other add-ons to fill the places i needed, but that's probably why it didn't work :P i didn't even have the variable in the script, but that's my crappy scripting knowledge for you.

Headcrab Zombie:
The biggest problem is that you're only checking it once when the vehicle is created.
A few other smaller problems:
Using vehicle::onSpawn will affect every vehicle. In the script below, change <YourVehicleDatablockName> to, well, you vehicle datablock name
You have a check for > 1, and a check for < 1, with no check for exactly one. I changed it to >= 1 and < 1. This is not an issue here as the velocity is extremely unlikely to be exactly 1 for any noticable amount of time, but just keep it in mind for future scripts.
Untested:

--- Code: ---function <YourVehicleDatablockName>::onSpawn(%this)
{
%this.checkVelocity();
}

function <YourVehicleDatablockName>::checkVelocity(%this)
{
cancel(%this.checkVelocitySchedule);
if(!isthisect(%this))
return;

if(vectorLen(%this.getVelocity()) >= 1 && !%this.isFly)
{
%this.mountImage(DMTVJetStreamImage1,0);
%this.mountImage(DMTVJetStreamImage2,1);
%this.playThread(0,"toFly");
%this.isFly = 1;
}

if(vectorLen(%this.getVelocity()) < 1 && %this.isFly)
{
%this.unMountImage(DMTVJetStreamImage1,0);
%this.unMountImage(DMTVJetStreamImage2,1);
%this.playThread(0,"toIdle");
%this.isFly = 0;
}

%this.checkVelocitySchedule = %this.schedule(100,checkVelocity);
}

--- End code ---

I'm unsure if those are the correct arguments for onSpawn as I couldn't find any source. I also changed a few things to match my own coding style.
Also, get in the habit of proper indenting. It makes code a lot easier to read.

Midway Sentinel:
thanks man. once again i owe you one :)

-edit: it unfortunately didn't work ingame, although from the looks of it it should have. do you think if i sent you the whole of the script that it would help?

Headcrab Zombie:
Trying add %obj.checkVelocity() to the onAdd function, and remove the onSpawn function

Midway Sentinel:
thanks, ill try it straight away!

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