loop

Purpose

Repeat a section of code

Description

Repeat a section of code a specified number of times or until a condition is met (or forever)

Syntax

loop ... repeat // Loop forever

while condition loop ... repeat // Loop while condition is true

for index = start to end loop ... repeat // Loop over values 

for index = start to end step amount loop ... repeat // Loop over values with step

Arguments

condition boolean condition that stops the loop when false

index loop index variable

start start value of index

end end value of index (loop is not executed with this value)

amount amount to change index variable

Example

// Draw 100 random boxes
clear()
for i = 1 to 100 loop
    // Pick random colour
    col = { random( 101 ) / 100, random( 101 ) / 100, random( 101 ) / 100, random( 101 ) / 100 }
    x = random( gWidth() )
    y = random( gHeight() )
    width = random( gWidth() / 4 )
    height = random( gHeight() / 4 )
    outline = random( 2 )
    box( x, y, width, height, col, outline )
    update()
repeat
// Wait 3 seconds
sleep( 3 )

Associated Commands