Cannot read property 'bind' of null When using OpenProcessing


#1

Hello there. I am making a game in processing and it works fine, but I am trying to upload it to openprocessing.org but I’m running into some issues.

I pasted my code on a new sketch and uploaded all of the files onto the site, but I am running into the following error: Cannot read property ‘bind’ of null.

I tried looking up the cause and how to fix this issue, but my attempts did not work.

Here is the sketch on openprocessing: https://www.openprocessing.org/sketch/559876#


#2

We can’t use libraries written in Java (like your SoundFile there) in JS! :disappointed_relieved:

Either hack your way to get sound using JS itself like this Mario sketch did: :robot:
https://GoSubRoutine.GitHub.io/PjsGameEngine/codebase/

Or then rewrite it in JS (or some other language transpiled to JS, like TypeScript and CoffeeScript) targeting the library p5js:


#3

Thanks for the reply! I didn’t what caused the error in the first place.

I will definitely look into this.


#4

Alright so I tried to upload the game without the audio to at least play it online, and still got the same issue.

I looked into it and preloaded the images and the font to get rid of the error, and it worked, kind of.

So now it doesn’t play, its just a blank screen. link

Not sure why this is happening. I have uploaded the image files to openprocessing.org and it still doesn’t run the game.


#5

Besides using 2 /*@pjs */ directive comment blocks, those image filenames don’t match the 1s you’ve uploaded there! :scream:

They even lack the file extension “.png”! Capitalization fails to match either! :dizzy_face:

For example, the 1st image you request in /*@pjs */ is “imgHeart1”.
However, the uploaded filename is just: “heart1.png”. :roll_eyes:


#6

Ok so I tried using only 1 @pjs comment block and matched the files I had:

/* @pjs preload="heart1.png, heart2.png, map1.png, Zombie-up.png, Zombie-down.png, Zombie-left.png, Zombie-right.png, background.png, Crate-img.png, Health-img.png, volumeWhite1.png, volumeWhite2.png, bullet1.png, bullet2.png, bullet3.png, DAY-ZERO.png, devlogo.png, Arial.tff"; */

But it’s still not playing and I’m not sure why.

Thanks for your continuous help :slight_smile: Really appreciate it


#7


#8

Fixed the map name and added the font file + the @pjs directive. When I hit F12 I am getting the following error now and I don’t know what it means:

Uncaught TypeError: Cannot read property 'bind' of null
    at eval (eval at attach (processing-1.4.8.js:718), <anonymous>:1340:27)
    at Processing.Sketch.attach (processing-1.4.8.js:719)
    at executeSketch (processing-1.4.8.js:21448)
    at new Processing.Processing (processing-1.4.8.js:21483)
    at pjs_OPextension.js:7
    at dispatch (jquery-1.11.1.min.js:3)
    at r.handle (jquery-1.11.1.min.js:3)
(anonymous) @ VM556:1340
attach @ processing-1.4.8.js:719
executeSketch @ processing-1.4.8.js:21448
Processing.Processing @ processing-1.4.8.js:21483
(anonymous) @ pjs_OPextension.js:7
dispatch @ jquery-1.11.1.min.js:3
r.handle @ jquery-1.11.1.min.js:3
load (async)
add @ jquery-1.11.1.min.js:3
(anonymous) @ jquery-1.11.1.min.js:3
each @ jquery-1.11.1.min.js:2
each @ jquery-1.11.1.min.js:2
on @ jquery-1.11.1.min.js:3
(anonymous) @ iframe_giveFocus.js:2
sketch_console.js:78 Uncaught TypeError: Cannot read property 'message' of null
    at sketchConsole.showError (sketch_console.js:78)```

Edit: Here is what I did to the @pjs:

/* @pjs preload="heart1.png, heart2.png, Map1.png, Zombie-up.png, Zombie-down.png, Zombie-left.png, Zombie-right.png, background.png, Crate-img.png, Health-img.png, volumeWhite1.png, volumeWhite2.png, bullet1.png, bullet2.png, bullet3.png, DAY-ZERO.png, devlogo.png" font="arial.ttf";*/

#9

In order to have a sketch automatically transpiled by the Pjs library to JS, we need to make sure it sticks to its API: http://ProcessingJS.org/reference/ :open_book:

For example, inside your class Leaderboard’s constructor, you attempt to createReader(), which isn’t available to Pjs! :disappointed_relieved:


#10

Thanks for the replies once again!

The initial purpose of posting our game online was to have our friends have it a go. I guess we can’t do that since we have file reading/writing.

Oh well, it was worth a shot. :pensive: