LUAu "vector" problem

rrraptor

local headerRegion = vector(0, 0, 0, 0)   Timer.delayedCall(10, function() headerRegion.x, headerRegion.y, headerRegion.z, headerRegion.w = 100, 200, 300, 400 print(headerRegion) end)

Outputs: 0, 0, 0, 0

But without the delay, works fine...
What happens? Values gets gc or something?

hgy29

In your delayed function, headerRegion is an upvalue. When you write 'headerRegion.x=1', LUAu first fetch the upvalue into a local variable, then sets x component to that local variable, but the original upvalue is never set back and that local varible is discarded right after. I guess it is a limitation of luau.

Writing headerRegion=vector(100,200,300,400) works, because the whole upvalue is modified

rrraptor

Ok, got it