"For" loop.

[savask]

Is there a "For" loop in Algodoo or Phun?
Like in Pascal or C.

[KarateBrot]

Yes

Code: Select all

for(n,(i)=>{  })


[savask]

Thank you!

[KarateBrot]

There's an example in the Algodoo or Phun folder. A text file that's called "thyme.txt" with an example:

Code: Select all

/* for - A simple looping structure in Thyme.
Used like this: for(n, (i)->{ ... }); where n is the number of times to call the function. i will be given the values 0, 1, ..., n-2, n-1
Example:
   for(4, (n)=>{print ((n+1) + " bottles of beer on the wall.")})
Output:
   1 bottles of beer on the wall.
   2 bottles of beer on the wall.
   3 bottles of beer on the wall.
   4 bottles of beer on the wall.


[savask]

So, does this mean that I should put the variable in the round brackets?

[KarateBrot]

If you call the variables "n" and "i":
n is the number of how often for will be looped
i is the counter and it will raise by 1 every loop, starting at 0

For example if you want to add a value that's raising by 1 to a variable 3 times:

Code: Select all

for(3, (i)=>{ scene.my.variable = scene.my.variable + i })


That means:
scene.my.variable = scene.my.variable + 0;
scene.my.variable = scene.my.variable + 1;
scene.my.variable = scene.my.variable + 2;

So if scene.my.variable is 5 at the beginning it will be 8 at the end.

[savask]

And if "i" will be bigger then "n", will it decrease?

[KarateBrot]

No i can't be bigger than n because n is the limit.

Do you know the sum-function in maths? for is exactly this thing.

[savask]

Ok, thanks!

[KarateBrot]

No problem, dude

[link0007]

No i can't be bigger than n because n is the limit.

Do you know the sum-function in maths? for is exactly this thing.

No it isn't.. the capital sigma function is a loop, yes, just like a for-loop.

[KarateBrot]

that's what i meant. sorry, sometimes it's difficult to translate it from german to english