Methods to format string representation of integers and floats?

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Dybing

13

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Joined: 12th Sep 2011

Location: Bergen, Norway

Posted: 24th Dec 2017 13:42

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Either I'm blind, the documentation is lacking or an easy way to pad integers with zeros or set decimals in a float when converting to string do not exist in AGK.

In other languages it's easy enough, in Go for instance:

myFloat := 1.23456
myString := fmt.Sprintf("%2.2f", myFloat)

this will format the float to the string value "01.23"

For the life of me, I could not find anything similar in AGK. In my current project I need to pad an integer with zeroes in front to always output 4 digits (0000 to 9999), and another to format a float to display only one decimal point. So had to hack together a couple of functions to do this for me. These do work, but surely such methods should be part of AppGameKit?!

...or maybe they are already, it's just me being blind...

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smallg

Valued Member

18

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Joined: 8th Dec 2005

Location: steam

Posted: 24th Dec 2017 14:25

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Set the number of decimal places in the str() command, I.e.
Str(1.23456,2)
Will give 1.23

life's one big game
spec= 4ghz, 16gb ram, AMD R9 2700 gpu

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Dybing

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Joined: 12th Sep 2011

Location: Bergen, Norway

Posted: 24th Dec 2017 16:57 Edited at: 24th Dec 2017 16:57

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Thanks smallg, that took care of the number of decimal places to display - and allowed me to get rid of my own hacky function to do it.

No ideas on easier way to pad zeroes in front of an integer to have it always displayed of a fixed length, eg "0123" or "0005"? My function to do it reads len(str(myInt)) and if less than 4 chars long, will pad with 1 to 3 zeroes.

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puzzler2018

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Posted: 24th Dec 2017 17:00

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does my function help

+ Code Snippet


// Project: pad 
// Created: 2017-12-24

// show all errors
SetErrorMode(2)

// set window properties
SetWindowTitle( "pad" )
SetWindowSize( 1024, 768, 0 )
SetWindowAllowResize( 1 ) // allow the user to resize the window

// set display properties
SetVirtualResolution( 1024, 768 ) // doesn't have to match the window
SetOrientationAllowed( 1, 1, 1, 1 ) // allow both portrait and landscape on mobile devices
SetSyncRate( 30, 0 ) // 30fps instead of 60 to save battery
SetScissor( 0,0,0,0 ) // use the maximum available screen space, no black borders
UseNewDefaultFonts( 1 ) // since version 2.0.22 we can use nicer default fonts

global number as integer

number=63
do
    print (pad(number,"0",4))
    

    Print( ScreenFPS() )
    Sync()
loop

function pad( num,with$, length)
	
	str$ = str(num)
	new$=""
	for a=1 to length - len(str$)
		new$=new$+with$
	next	
	new$=new$+str$
	
endfunction new$

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