maxscript --Type error: Call needs function

theStudent

Hi guys!

I'm working on a simple tool in maxscript for my own practice. The script works fine when I'm testing it out, however, when I shutdown max and start the tool for the first time, I get the following error:

--Type error: Call needs function or class, got: undefined

But when I close the rollout and re-run the exact same script a second time, it works fine. It seems like the error is telling me that I haven't defined a function correctly. Not sure what I'm doing wrong.

Any ideas or feedback are appreciated.
Thanks!

monster

In your tool a function is being defined after it is used. It works on the second try because its defined at the end of the first pass.

If you script is a single file, move all you function definitions to the top of the script. If you script is multiple files check this page for the evaluation order.

http://docs.autodesk.com/3DSMAX/15/ENU/MAXScript-Help/index.html?url=files/GUID-615D14FB-0F2D-4801-B381-1128C4128C70.htm,topicNumber=d30e31465

Finally, we can help better if you post a code sample.

theStudent

Whoops, I meant to post my script. However, what you said makes sense! Thanks for the response. Testing it now.
brb =]

macroScript testScript
category:"some category"
toolTip:""
(
try(closerolloutfloater rof) catch("Dialog close error!")
rollout test "Production Tools" (

group "Production Tools" (
button btn_K "tempTXTR" width:50 height:30 align: #left
)

on btn_K pressed do (
tempTXTR ()
)

)
rof = newrolloutfloater "Sim Tools v1.0" 300 90
addrollout test rof
--end main******************************************************************************************************************

fn tempTXTR = (
obj = selection
obj.wirecolor = color 0 0 255
obj.material = meditMaterials[1]
obj.name = "test"
)
)

theStudent

Thanks monster! Read the link, that and your post helped clarify my error.

Pathologist

Just a side note, I would change your function to:

fn tempTXTR obj = (
	obj.wirecolor = color 0 0 255
	obj.material = meditMaterials[1]
	obj.name = "test"
)

this way when you call your function you can add the "object" behind it, eg;

on btn_K pressed do (
	tempTXTR selection -- same as declaring obj = selection at the start of the function
)

or;

on btn_K pressed do (
	tempTXTR objects -- uses all objects in the scene
)

Now you can make multiple calls towards the same function without having to duplicate functions!