[Solved] Problem with Show/Hide Child in vwep Praefab

[burgelkat]

Hallo,

i hope someone can explain this to me.

i build a vwep praefab (like autogun)

this script function and the bucket is show

 

in the Start function i have this code.

if i take the bucket, the child is now hidden.

function Script:Start()

	local child = self.entity:FindChild("WaterforBucket")	
	child:Hide()

 

the problem now is, if i would show it again, i got an error.

this is the code for showing the child

function Script:becomewater()--in
	self.becomewater=true
	local child = self.entity:FindChild("WaterforBucket")	
		if child:Hidden() then
			child:Show()
		end
end

the child is now nil. (Script Error attempt to index local "child" (a nil value)

why now the child is not found?

can someone explain and how i can fix it?

[reepblue]

Since you can find the child on Start, I would store it in a variable to quick and easy access. I'd also put in null checks.

Script.vmodel = nil
function Script:Start()

	local child = self.entity:FindChild("WaterforBucket")	
  	if child ~= nil then 
    	self.vmodel = child 
    	self.vvmodel:Hide()
  	end
 end

function Script:DoSomething()
  	-- Get my view model!
  	local vm = self.vmodel
  	vm:SetColor(1,0,0,1)
end

 

[burgelkat]

thanks for your answer. i got the first part.

but at the "DoSomething" it crashs to desktop without error

[reepblue]

It's probably a syntax error because It's just proto code, The point I was trying so show that you can store pointers into variables for easy access.

[burgelkat]

ah ok got it.. thanks .. i try .. and post again if it function. many thanks

[burgelkat]

ok, solved it.

In the player script I have to make a reference to the weapon index in order to trigger the function.

	self.weapons[self.currentweaponindex]:becomewater()

 

 

[Marcousik]

Quote

the problem now is, if i would show it again, i got an error.

this is the code for showing the child

function Script:becomewater()--in
	self.becomewater=true
	local child = self.entity:FindChild("WaterforBucket")	
		if child:Hidden() then
			child:Show()
		end
end

the child is now nil. (Script Error attempt to index local "child" (a nil value)

why now the child is not found?

This is still a good question...

Maybe it depends on where do you call the becomewater() function from ?