semicolon
The ; semicolon is used for making helpful comments or notes on a line of code. All the characters will turn grey after a semicolon is used. Keep in mind that whenever a semicolon is used at the beginning of the line, this part of the code will not run. We can also place comments to the right of a line of code. For example:
; the procedure below moves the fish forward
to move-fish
ask fish [
right random 360 ; we make the fish turn randomly
forward 1
]
end
In the model example below, we use ; semicolon to explain two lines of code and the wiggle procedure.
Try it Yourself
xxxxxxxxxx29
1
; a line that starts with a semicolon (;) is a comment2
; a commented line does not affect how the code runs3
; but it helps us leave notes to ourselves4
to setup5
clear-all6
ask patches [set pcolor 27] ; 25 is orange, 27 is light orange7
create-turtles 1 [8
set shape "butterfly"9
]10
create-turtles 1 [11
set shape "tree"12
set color green13
set size 514
]15
reset-ticks16
end17
to go18
ask turtle 0 [ ; turtle 0 is the butterfly19
wiggle20
forward 0.521
]22
tick23
end24
; to wiggle means to turn right or left randomly25
; before every newn step26
to wiggle27
right random 9028
left random 9029
endWhat's next?
Once you mastered the semicolon primitive, don't stop there. Check out the resources below to improve your NetLogo skills.
