function

Purpose

Create a user defined function

Description

Allows the user to create their own functions. This allows code to be reused and makes it easier to read and maintain

Syntax

function name() ... return value // function with no arguments

function name(argument1, ... argumentn) ... return value // function with n arguments

Arguments

name name of the function

argument1 first parameter of the function

argumentn last parameter of the function

value return value of the function (void if no value is returned)

Example

for size = 1 to 200 step 1 loop
    clear()
    centreText( "Hello World", size )
    update()
repeat

// Centre a text string on the screen
function centreText( message, size )
    textSize( size )
    tw = textWidth( message )
    drawText( ( gWidth() - tw ) / 2, ( gHeight() - size ) / 2, size, white, message )
return void

Associated Commands