Making a Random String Mouseclick

Programming Questions

stu.hooper

Making a Random String Mouseclick

in Programming Questions • 1 years ago

Hello Processing Forum,

I trust you are all well.

I'm trying to make a program that displays a random image from a string with a mouse click. With a starting 'homepage' image that always loads first.

Is this possible or am I a fool?

int maxImages = 16; //total number of images

int imageIndex = 0; // Start with first image (0 not 1)

PImage b; //background

PImage[] images = new PImage [maxImages]; // The Image Array

String[] filenames = {"iBlame1.gif", "iBlame2.gif", "iBlame3.gif",

"iBlame4.gif", "iBlame5.gif", "iBlame6.gif", "iBlame7.gif", "iBlame8.gif",

"iBlame9.gif", "iBlame10.gif", "iBlame11.gif", "iBlame12.gif", "iBlame13.gif",

"iBlame14.gif", "iBlame15.gif", "iBlame16.gif"};

int index = int (random(images.length));;

void setup()

{

size(640,960);

b = loadImage("Homepage.gif");

image(b, 0, 0);

}

Replies(3)

v.k.

Re: Making a Random String Mouseclick

1 years ago

Well if you got all images in data folder as appears to be, just load all images at setup and make a simple call to the Pimages array, like

int numberOfImages = 3;

int index=0;

PImage[] imArray = new PImage[numberOfImages];

void setup()

{

size(1603,818);

for(int i=0 ; i< imArray.length ; i++)

{

String name = "iBlame"+i+".png";

imArray[i] = loadImage(name);

println(name);

}

void draw()

{

image(imArray[index],0,0);

}

void mousePressed()

{

index = int(random(0,numberOfImages));

println(index);

}

I made png but could be gif

stu.hooper

Re: Making a Random String Mouseclick

1 years ago

So far today I've managed this .....

PImage b; //background

RANDOMIMG r;

boolean isRel = false;

void setup()

{

size(300,400);

b = loadImage("Homepage.gif");

r = new RANDOMIMG();

image(b, 0, 0,width, height);

}

void draw()

{

}

void mouseReleased()

{

isRel = true;

r.update();

if (isRel = true)

{

}

---------------------------------------------TAB 2-----------------------------------------------------------------------------

//define the class name

class RANDOMIMG {

//Declare string name as 'filenames' and populate with images

String[] filenames = {"iBlame1.gif", "iBlame2.gif", "iBlame3.gif",

"iBlame4.gif", "iBlame5.gif", "iBlame6.gif", "iBlame7.gif", "iBlame8.gif",

"iBlame9.gif", "iBlame10.gif", "iBlame11.gif", "iBlame12.gif", "iBlame13.gif",

"iBlame14.gif", "iBlame15.gif", "iBlame16.gif"};

//Declare images as an image or set of images

PImage[] images;

// Declare Rand as an int

int Rand;

//Start RANDOMING and say what it is going to do (like a void setup)

RANDOMIMG(){

//Use the defined 'images' PImage to run the 'filenames' string through it's entire length

images = new PImage [filenames.length];

for (int i = 0; i <filenames.length; i++)

{

images [i] = loadImage(filenames[i]);

}

// rand = pick a random file from the string

int rand = ceil(random(-1,15));

Rand = rand;

}

void update()

{

image(images[Rand], 0, 0, width, height);

}

-------------------------------------------------------FIN------------------------------------------------------------

It works but it only works once. Can anyone think of a way of making it work multiple times?

PhiLho

Re: Making a Random String Mouseclick

1 years ago

if (isRel = true)

You do an assignment here (single = instead of ==)
It is simpler and safer to write:
if (isRel)
anyway.

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