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0

I like using nested functions, but how can I deal with something like this:

addEvent("onQuestion", function() body end)

I want to do something like removeEvent in the same function, but it requires the function as a second argument

addEvent("onQuestion", function()
 do..some..stuff
 removeEvent("onQuestion", thisFunction)
end)

function lua

share|improve this question

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

add a comment | 

0

I like using nested functions, but how can I deal with something like this:

addEvent("onQuestion", function() body end)

I want to do something like removeEvent in the same function, but it requires the function as a second argument

addEvent("onQuestion", function()
 do..some..stuff
 removeEvent("onQuestion", thisFunction)
end)

function lua

share|improve this question

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

add a comment | 

I like using nested functions, but how can I deal with something like this:

addEvent("onQuestion", function() body end)

I want to do something like removeEvent in the same function, but it requires the function as a second argument

addEvent("onQuestion", function()
 do..some..stuff
 removeEvent("onQuestion", thisFunction)
end)

function lua

share|improve this question

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

addEvent("onQuestion", function() body end)

addEvent("onQuestion", function()
 do..some..stuff
 removeEvent("onQuestion", thisFunction)
end)

share|improve this question

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

share|improve this question

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

edited Mar 24 at 14:18

Nick Parsons

10.9k31029

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

asked Mar 24 at 14:15

Mahmoud SagrMahmoud Sagr

1

1 Answer
1

active

oldest

votes

2

If the way removeEvent identifies the specific event function to remove by providing that exact function, then that's what you have to do. So the function needs to be stored somewhere, so that the function can pass it to removeEvent.

That would typically look like this:

local function eventFunc()
 do..some..stuff
 removeEvent("onQuestion", eventFunc)
end

addEvent("onQuestion", eventFunc)

If you want a more generic solution, you can create an addSelfRemoveEvent wrapper function:

function addSelfRemoveEvent(eventName, func)
 local outer function()
 func()
 removeEvent(eventName, outer)
 end
 addEvent(eventName, outer)
end

share|improve this answer

edited Mar 25 at 20:04

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  That's a really nice solution, thanks :)
  
  – Mahmoud Sagr
  Mar 25 at 1:44
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The second example will not work.
  
  – Egor Skriptunoff
  Mar 25 at 18:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @EgorSkriptunoff: Why doesn't it work?
  
  – Nicol Bolas
  Mar 25 at 20:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @EgorSkriptunoff: Fixed.
  
  – Nicol Bolas
  Mar 25 at 20:04
  

  
  
  
  

add a comment | 

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2

If the way removeEvent identifies the specific event function to remove by providing that exact function, then that's what you have to do. So the function needs to be stored somewhere, so that the function can pass it to removeEvent.

That would typically look like this:

local function eventFunc()
 do..some..stuff
 removeEvent("onQuestion", eventFunc)
end

addEvent("onQuestion", eventFunc)

If you want a more generic solution, you can create an addSelfRemoveEvent wrapper function:

function addSelfRemoveEvent(eventName, func)
 local outer function()
 func()
 removeEvent(eventName, outer)
 end
 addEvent(eventName, outer)
end

share|improve this answer

edited Mar 25 at 20:04

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  That's a really nice solution, thanks :)
  
  – Mahmoud Sagr
  Mar 25 at 1:44
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The second example will not work.
  
  – Egor Skriptunoff
  Mar 25 at 18:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @EgorSkriptunoff: Why doesn't it work?
  
  – Nicol Bolas
  Mar 25 at 20:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @EgorSkriptunoff: Fixed.
  
  – Nicol Bolas
  Mar 25 at 20:04
  

  
  
  
  

add a comment | 

2

If the way removeEvent identifies the specific event function to remove by providing that exact function, then that's what you have to do. So the function needs to be stored somewhere, so that the function can pass it to removeEvent.

That would typically look like this:

local function eventFunc()
 do..some..stuff
 removeEvent("onQuestion", eventFunc)
end

addEvent("onQuestion", eventFunc)

If you want a more generic solution, you can create an addSelfRemoveEvent wrapper function:

function addSelfRemoveEvent(eventName, func)
 local outer function()
 func()
 removeEvent(eventName, outer)
 end
 addEvent(eventName, outer)
end

share|improve this answer

edited Mar 25 at 20:04

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  That's a really nice solution, thanks :)
  
  – Mahmoud Sagr
  Mar 25 at 1:44
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The second example will not work.
  
  – Egor Skriptunoff
  Mar 25 at 18:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @EgorSkriptunoff: Why doesn't it work?
  
  – Nicol Bolas
  Mar 25 at 20:01
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @EgorSkriptunoff: Fixed.
  
  – Nicol Bolas
  Mar 25 at 20:04
  

  
  
  
  

add a comment | 

If the way removeEvent identifies the specific event function to remove by providing that exact function, then that's what you have to do. So the function needs to be stored somewhere, so that the function can pass it to removeEvent.

That would typically look like this:

local function eventFunc()
 do..some..stuff
 removeEvent("onQuestion", eventFunc)
end

addEvent("onQuestion", eventFunc)

If you want a more generic solution, you can create an addSelfRemoveEvent wrapper function:

function addSelfRemoveEvent(eventName, func)
 local outer function()
 func()
 removeEvent(eventName, outer)
 end
 addEvent(eventName, outer)
end

share|improve this answer

edited Mar 25 at 20:04

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672

local function eventFunc()
 do..some..stuff
 removeEvent("onQuestion", eventFunc)
end

addEvent("onQuestion", eventFunc)

function addSelfRemoveEvent(eventName, func)
 local outer function()
 func()
 removeEvent(eventName, outer)
 end
 addEvent(eventName, outer)
end

share|improve this answer

edited Mar 25 at 20:04

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672

answered Mar 24 at 14:46

Nicol BolasNicol Bolas

297k35494672