Hello, I am having an issue with my processing code. shuffle$($string$[])$ does not exist. Please help, here is the code:

import processing.core.$*$;

$//$ Import SoundFile class

import processing.sound.$*$;

$//$ import core processing library

PImage sprite, beach, landscape, school;

$//$ Declare image variables

PApplet p;

$//$ Declare PApplet variable

String$[]$ backgrounds $=\{$

"beach.png$",$

"landscape.png$",$

"schoolipng.png$"$

$\}$;

$//$ Array for background images

String$[]$ sounds $=\{$

"beachsound.mp$3",$

"landscapesound.mp$3",$

"schoolsound.mp$3"$

$\}$;

$//$ Track current scene index

int currentScene $=0$;

$//$ Initial sprite position

int spriteX $=0$;

$//$ Flag to control walking animation

boolean walking $=$ false;

$//$ Direction of sprite movement

boolean walkingRight $=$ true;

void setup$()\{$

p $=$ this; $//$ Assign PApplet instance

size$(800,600)$; $//$ Set window size

$//$ Load images and sounds

sprite $=$ loadImage$("$pngegg$.$png$")$;

beach $=$ loadImage$("$beach$.$png$")$;

landscape $=$ loadImage$("$landscape$.$png$")$;

school $=$ loadImage$("$schoolipng$.$png$")$;

$//$ Randomly shuffle background and sound order

shuffle$($backgrounds$)$;

$\}$

void draw$()\{$

background$($loadImage$($backgrounds$[$currentScene$]))$; $//$ Set background image

$//$ Handle sprite movement

if $($walking$)\{$

if $($walkingRight$)\{$

spriteX $+=5$; $//$ Move sprite right

if $($spriteX $+$ sprite.width $>=$ width$)\{$

walking $=$ false; $//$ Stop walking at screen edge

playNextSound$()$; $//$ Play next scene's sound

currentScene $=($currentScene $+1)\%$ backgrounds.length; $//$ Wrap around to next scene

$\}$

$\}$ else $\{$

spriteX $-=5$; $//$ Move sprite left

if $($spriteX $<=0)\{$

walking $=$ false; $//$ Stop walking at screen edge

playNextSound$()$; $//$ Play next scene's sound

currentScene $=($currentScene $-1+$ backgrounds.length$)\%$ backgrounds.length; $//$ Wrap around to previous scene

$\}$

$\}$

$\}$

$//$ Draw sprite based on direction

if $($walkingRight$)\{$

image$($sprite$,$ spriteX, height $-$ sprite.height$)$;

$\}$ else $\{$

image$($sprite$,$ spriteX $+$ sprite.width, height $-$ sprite.height, $-$sprite.width, sprite.height$)$; $//$ Flip image horizontally

$\}$

$//$ Stop the program after completing all scenes

if $($currentScene $==0$ && $!$walking$)\{$

noLoop$()$;

$\}$

$\}$

void mousePressed$()\{$

walking $=$ true; $//$ Start walking animation on mouse press

if $($spriteX $>$ width $/2\mathrm{.}0)\{$

walkingRight $=$ false; $//$ Start walking left if clicked on the right half

$\}$

$\}$

void playNextSound$()\{$

$//$ Play the sound file corresponding to the current scene

SoundFile sound $=$ new SoundFile$($p$,$ sounds$[$currentScene$])$;

sound.play$()$;

$\}$

Please note that this is processing code not javascript