Does anyone know how to randomize colours?

[lawyer_chelsea]

I have an assignment due and I can't for the life of me remember how to randomize colours. Could someone tell me the code or where I can find it?
It would be greatly appreciated!! Thanks!!

[[Gandalf]]

You see, I would help you, but I don't really know the answer since I'm only doing a compsci "gig", while my real job is stand up comedy (how did you know?).

Read the rules. At least you've followed my advice and stopped overusing smilies. Good job!!

[Cervantes]

You don't "randomize the colours". Well, you could, but that would be a very inefficient way to do it. Instead, just generate a random number, using Rand.Int(), and then use that number as the colour number.

[Tony]

[Gandalf] wrote:

At least you've followed my advice and stopped overusing smilies. Good job!!

Now if you can only teach lawyer_chelsea to use more contrasting text colours...

[Hikaru79]

code:

loop      Draw.FillOval (maxx div 2, maxy div 2, 50, 50, Rand.Int(1,256)) end loop

There is an INTENTIONAL BUG in there just because I don't want you copying and pasting this if its an assignment. If you understand what I did, you'll understand what to fix. Enjoy

[codemage]

Maybe you've already been doing it, but your absent-minded teacher forgot to install the Draw.Random.Colour(# of random colours) library.

[TokenHerbz]

i just do this for random colors

code:

var color: int loop      randint(color,1,255)      drawfilloval(20,20,20,20,color) end loop

Then again, i seem to make more work the is nessesary...

[jamonathin]

Hikaru79 wrote:

code:

loop      Draw.FillOval (maxx div 2, maxy div 2, 50, 50, Rand.Int(1,256)) end loop

There is an INTENTIONAL BUG in there just because I don't want you copying and pasting this if its an assignment. If you understand what I did, you'll understand what to fix. Enjoy

Or, we could just use [Censored: Hikaru79 had his reasons] No more bug

tokenherbz wrote:

Then again, i seem to make more work the is nessesary...

For the most part, a lazy programmer makes a good programmer, code wise, not work ethic wise.

[Cervantes]

tokenherbz wrote:

i just do this for random colors

code:

var color: int loop      randint(color,1,255)      drawfilloval(20,20,20,20,color) end loop

Then again, i seem to make more work the is nessesary...

Yeah, you did in this situation as well. Use functions over procedures. The better way to do this is seen in Hikaru's post.

[TokenHerbz]

why's a function better then a proc?

what are the differenc's?

[Tony]

a procedure is a function that doesn't return a value.
brief comparison

[codemage]

That question was asked really recently in another thread... but I can't seem to find it.

Functions return a value, procs don't.
Because of that, you can write tighter, better code with functions - and they enable recursion.

[Tony]

codemage wrote:

Because of that, you can write tighter, better code with functions - and they enable recursion.

It's the other way around. You can't write tighter, better code with procedures.

Functions do enable recursion though.

[codemage]

I write tighter code with functions all the time.

Here's an elementary program which does the same thing with both a function and a procedure. The section which uses the function does in 1 line what it takes 2 lines for the procedure to do.

code:

var test1 : int := 5 function doubleit (num : int) : int     result num * 2 end doubleit procedure doubleit2 (var num : int)     num := num * 2 end doubleit2 %Double & put a number with a function put doubleit(test1) %Double & put a number with a procedure doubleit2(test1) put test2

[beard0]

codemage wrote:

you can write tighter, better code with functions

Tony wrote:

You can't write tighter, better code with procedures.

Tony is talking about a slight nuance, but saying the same thing in the end - in your example, you could just have well written

code:

put num * 2

(1 line) which, incidentally, would actually cause less instruction cycles in the processor than your function call, meaning that your use of a function has not actually made tighter code.