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Abhishek Bhatia
Abhishek Bhatia

Reputation: 9796

if elseif else implementation in Netlogo environment

I wish - if elseif else statement in NetLogo. How can I do so efficiently? I checked NetLogo documentation no command to do so. Previous similar question didn't answer it directly but solved in the context.

One simple solution is:

    let flag true
    if(condition1)
    [
    ...
    set flag false
    ]
    if(flag and condition2)   ;else if statement
    [
    ...
    set flag false
    ]
    if(flag)  ;else statement
    [

    ...
    ]

I am looking for others more efficient ones.

Edit: added flag in the second if condition upon Nicolas's suggestion.

Upvotes: 5

Views: 1007

Answers (2)

King-Ink
King-Ink

Reputation: 2096

I find this form the most readable although the stack of "]" at the end is a little off-putting 

ifelse item cur brain = 0 [sit][
ifelse item cur brain = 1 [eat][
ifelse item cur brain = 2 [steal][
ifelse item cur brain = 3 [birth][
ifelse item cur brain = 4 [hunger][
ifelse item cur brain = 5 [smell][
]]]]]]

it has the advantage of being concise and reading like a "C" style switch statement

Upvotes: -1

Seth Tisue
Seth Tisue

Reputation: 30453

The only way I can wholeheartedly recommend is:

ifelse condition1
  [ ... ]
  [ ifelse condition2
      [ ... ]
      [ ifelse condition3
        [ ... ]
        [ ifelse ...

But yeah, the indentation and readability aren't great. For thoughts on possible eventual improvements, see https://github.com/NetLogo/NetLogo/issues/344 and https://github.com/qiemem/ControlFlowExtension.

Upvotes: 4

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