# Processing

**URL:** https://discourse.processing.org/c/processing/6.md?no_subcategories=false&page=165

[Latest](https://discourse.processing.org/latest.md) · [Categories](https://discourse.processing.org/categories.md) · [Tags](https://discourse.processing.org/tags.md)

**Page:** 166

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## [Serial with Hardware Flow Control](https://discourse.processing.org/t/serial-with-hardware-flow-control/25795)

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**Author:** [@gerrikoio](https://discourse.processing.org/u/gerrikoio)\
**Replies:** 5\
**Last updated:** [December 4, 2020, 4:10pm UTC](https://discourse.processing.org/t/serial-with-hardware-flow-control/25795 "2020-12-04T16:10:51Z")

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Every now and then you need to interface with a device via the computer serial port that asks for Hardware Flow Control (RTS/CTS). I had a look at the documentation: https://processing.org/reference/libraries/serial/Ser…

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## [Button with changing fading text](https://discourse.processing.org/t/button-with-changing-fading-text/25926)

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**Author:** [@jenk](https://discourse.processing.org/u/jenk)\
**Replies:** 2\
**Last updated:** [December 4, 2020, 4:01pm UTC](https://discourse.processing.org/t/button-with-changing-fading-text/25926 "2020-12-04T16:01:31Z")

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Hi. I know there’s something blindingly obvious wrong with this - but I’m too blind to know what it is. Would love some help if you can spare the time. The objective is for a button to have text that fades in and out …

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## [How can I make a program that hits balls in processing?](https://discourse.processing.org/t/how-can-i-make-a-program-that-hits-balls-in-processing/25893)

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**Author:** [@hahahajayden](https://discourse.processing.org/u/hahahajayden)\
**Replies:** 4\
**Last updated:** [December 4, 2020, 12:00am UTC](https://discourse.processing.org/t/how-can-i-make-a-program-that-hits-balls-in-processing/25893 "2020-12-04T00:00:29Z")

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please format code with \</\> button \* homework policy \* asking questions hello! I am a novice processing programmer living in Korea. I used Google Translator, so I hope you understand even if the words are strange. T…

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## [Can we get new light engine?](https://discourse.processing.org/t/can-we-get-new-light-engine/25911)

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**Author:** [@WilliamL](https://discourse.processing.org/u/WilliamL)\
**Replies:** 1\
**Last updated:** [December 3, 2020, 4:53pm UTC](https://discourse.processing.org/t/can-we-get-new-light-engine/25911 "2020-12-03T16:53:48Z")

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Hi all! I’m new to the forum but not new to processing, in fact a long time user. I’m calling out to you devs who are doing an astonishing work with Processing! I was coding a project the other night and was playing a…

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## [Library for cardboard-like display generation for windows](https://discourse.processing.org/t/library-for-cardboard-like-display-generation-for-windows/25928)

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**Author:** [@Johan](https://discourse.processing.org/u/Johan)\
**Replies:** 2\
**Last updated:** [December 3, 2020, 3:09pm UTC](https://discourse.processing.org/t/library-for-cardboard-like-display-generation-for-windows/25928 "2020-12-03T15:09:28Z")

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Is there a library for windows that performs some stereoscopic rendering as seen in Android/Google cardboards? Also called split stereoscopic images I believe…

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## [Creating a button and makin it work!](https://discourse.processing.org/t/creating-a-button-and-makin-it-work/25840)

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**Author:** [@denis](https://discourse.processing.org/u/denis)\
**Replies:** 4\
**Last updated:** [December 3, 2020, 2:55pm UTC](https://discourse.processing.org/t/creating-a-button-and-makin-it-work/25840 "2020-12-03T14:55:43Z")

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Hi everyone, I created a button with lp5 control but I can’t get it to work. I want it to function as a start button and click on it to start the code I already create. Thank you! This is what i have in the botton code: …

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## [Image Slideshow based on folder + QR code triggers /Performance](https://discourse.processing.org/t/image-slideshow-based-on-folder-qr-code-triggers-performance/25895)

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**Author:** [@patrickBEL](https://discourse.processing.org/u/patrickBEL)\
**Replies:** 2\
**Last updated:** [December 3, 2020, 7:05am UTC](https://discourse.processing.org/t/image-slideshow-based-on-folder-qr-code-triggers-performance/25895 "2020-12-03T07:05:30Z")

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Hello, I’m a starter and i’m very happy where i got with my code, it does work, but the performance is not optimal, the fps drops significantly, and it makes the fade not nice. And i don’t see how i can ‘simplify’ or m…

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## [SVG (not always vector format?)](https://discourse.processing.org/t/svg-not-always-vector-format/25885)

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**Author:** [@bdon](https://discourse.processing.org/u/bdon)\
**Replies:** 3\
**Last updated:** [December 3, 2020, 2:21am UTC](https://discourse.processing.org/t/svg-not-always-vector-format/25885 "2020-12-03T02:21:35Z")

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hi there - i’m using processing’s SVG library to export SVG files from still images. i’ve noticed that this output is somewhat erratic, though. while it more-or-less always exports the image as i expect, different draw…

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## [Whats the best way to connect a processing sketch to a minecraft server](https://discourse.processing.org/t/whats-the-best-way-to-connect-a-processing-sketch-to-a-minecraft-server/25910)

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**Author:** [@capbap](https://discourse.processing.org/u/capbap)\
**Replies:** 0\
**Last updated:** [December 3, 2020, 12:37am UTC](https://discourse.processing.org/t/whats-the-best-way-to-connect-a-processing-sketch-to-a-minecraft-server/25910 "2020-12-03T00:37:55Z")

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i have a bukkit server running on ubuntu 20 i would like to have a processing sketch automatically trigger commands to make various games on the server i could do this by simply using java.awt.robot to paste commands i…

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## [Help a newbie create a particle system that follows my player movement](https://discourse.processing.org/t/help-a-newbie-create-a-particle-system-that-follows-my-player-movement/25905)

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**Author:** [@Cal\_codes](https://discourse.processing.org/u/Cal_codes)\
**Replies:** 0\
**Last updated:** [December 2, 2020, 10:43pm UTC](https://discourse.processing.org/t/help-a-newbie-create-a-particle-system-that-follows-my-player-movement/25905 "2020-12-02T22:43:32Z")

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Hey guys, I am making a geometrical game for some fun right now and have been pondering for a while how to make sure my “users” would be able to see the direction they are moving in. Right now I have a line that shows t…

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## [Processing IDE scale variables](https://discourse.processing.org/t/processing-ide-scale-variables/25825)

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**Author:** [@Pr0tonX](https://discourse.processing.org/u/Pr0tonX)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 3:46pm UTC](https://discourse.processing.org/t/processing-ide-scale-variables/25825 "2020-12-02T15:46:32Z")

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Hi there, my laptop has a 4K screen and I have searched quite a bit in processing source code to modify the scale of display without a complete success ; I found how to scale correctly the "coding part "of the window an…

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## [Processing Game](https://discourse.processing.org/t/processing-game/25890)

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**Author:** [@Wengi](https://discourse.processing.org/u/Wengi)\
**Replies:** 1\
**Last updated:** [December 2, 2020, 1:15pm UTC](https://discourse.processing.org/t/processing-game/25890 "2020-12-02T13:15:27Z")

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Hi guys Does anyone here know how to program this game? It doesn’t have to be exactly the same … Would appreciate your help Lg Wengi😉 The game: https://future-games.itch.io/meteor-run (these blue flying things don’t…

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## [It keeps me waiting](https://discourse.processing.org/t/it-keeps-me-waiting/25883)

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**Author:** [@muffininwinter](https://discourse.processing.org/u/muffininwinter)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 12:17pm UTC](https://discourse.processing.org/t/it-keeps-me-waiting/25883 "2020-12-02T12:17:01Z")

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It keeps loading, but never get the program running. Anyone knows what’s wrong with it? Thanks a lot!

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## [Convert String to Integer](https://discourse.processing.org/t/convert-string-to-integer/2430)

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**Author:** [@jarlook](https://discourse.processing.org/u/jarlook)\
**Replies:** 11\
**Last updated:** [December 2, 2020, 11:40am UTC](https://discourse.processing.org/t/convert-string-to-integer/2430 "2020-12-02T11:40:31Z")

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How can I convert a string to integer? I have a string that contains a set of values, some are text, but some are actually numeric values, all separated by commas. I can use split(string,",") to get any particular valu…

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## [Animated Text p5](https://discourse.processing.org/t/animated-text-p5/25881)

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**Author:** [@kketushkaaa](https://discourse.processing.org/u/kketushkaaa)\
**Replies:** 1\
**Last updated:** [December 2, 2020, 3:23am UTC](https://discourse.processing.org/t/animated-text-p5/25881 "2020-12-02T03:23:16Z")

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please format code with \</\> button \* homework policy \* asking questions I want to know how can I manage changing font weights so it’s animated

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## [Exporting Applications](https://discourse.processing.org/t/exporting-applications/25853)

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**Author:** [@HumanoidX](https://discourse.processing.org/u/HumanoidX)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 3:03am UTC](https://discourse.processing.org/t/exporting-applications/25853 "2020-12-02T03:03:37Z")

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I know how to export to an application. But when I export one, it create a lot of other files. Is it possible to export an application without the “lib” folder? I know the “source” folder is not necessary, and the “ja…

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## [Help! I have some trouble with my IDE！！](https://discourse.processing.org/t/help-i-have-some-trouble-with-my-ide/25862)

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**Author:** [@AbleYudada](https://discourse.processing.org/u/AbleYudada)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 1:57am UTC](https://discourse.processing.org/t/help-i-have-some-trouble-with-my-ide/25862 "2020-12-02T01:57:34Z")

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Hi guys . My IDE keeps reporting errors recently，I dont know what happen to it.The following is a screenshot of its error。 it will appear from time to time, and then the whole IDE will get stuck. Have any of you enco…

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## [Help with placing a shape on grid for tic tac toe. My code is shown below](https://discourse.processing.org/t/help-with-placing-a-shape-on-grid-for-tic-tac-toe-my-code-is-shown-below/25846)

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**Author:** [@seannyb2000](https://discourse.processing.org/u/seannyb2000)\
**Replies:** 2\
**Last updated:** [December 2, 2020, 12:51am UTC](https://discourse.processing.org/t/help-with-placing-a-shape-on-grid-for-tic-tac-toe-my-code-is-shown-below/25846 "2020-12-02T00:51:04Z")

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please format code with \</\> button \* homework policy \* asking questions char player=‘X’+‘O’; // inputs 2 players int cols=3; int rows=3; Cell board= new Cell\[cols\]\[rows\]; void setup() { size(600,600); for(int i…

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## [Array index out of bounds question](https://discourse.processing.org/t/array-index-out-of-bounds-question/25870)

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**Author:** [@karenben](https://discourse.processing.org/u/karenben)\
**Replies:** 4\
**Last updated:** [December 1, 2020, 10:46pm UTC](https://discourse.processing.org/t/array-index-out-of-bounds-question/25870 "2020-12-01T22:46:51Z")

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What’s causing the ArrayIndexOutOfBoundsException: 5? I want to make each bounce have a function that increases the value of the counter per ball. If the counter is greater than 10, stop drawing the ball int bounces = …

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## [Int that goes from 1 to 100](https://discourse.processing.org/t/int-that-goes-from-1-to-100/25873)

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**Author:** [@denis](https://discourse.processing.org/u/denis)\
**Replies:** 5\
**Last updated:** [December 1, 2020, 10:21pm UTC](https://discourse.processing.org/t/int-that-goes-from-1-to-100/25873 "2020-12-01T22:21:24Z")

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Hello everyone, Im trying to make an int that goes from the number 1 to 100, increasing one by one and then to reset and start again. I hope someone can help, Thanks!! D.

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## [Creating a grid for art](https://discourse.processing.org/t/creating-a-grid-for-art/25874)

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**Author:** [@Matrix](https://discourse.processing.org/u/Matrix)\
**Replies:** 1\
**Last updated:** [December 1, 2020, 10:14pm UTC](https://discourse.processing.org/t/creating-a-grid-for-art/25874 "2020-12-01T22:14:16Z")

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Hi, I’m trying to create grid that makes it so the rectangles that are created by my mouse clicks are lined up perfectly on either the x or y axis. This is all so I can make pixel art that’s consistent. This is what I ha…

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## [Join crosses with random lines](https://discourse.processing.org/t/join-crosses-with-random-lines/25395)

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**Author:** [@Dimdimtri](https://discourse.processing.org/u/Dimdimtri)\
**Replies:** 23\
**Last updated:** [December 1, 2020, 9:20pm UTC](https://discourse.processing.org/t/join-crosses-with-random-lines/25395 "2020-12-01T21:20:58Z")

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Hi everyone, I have a simple question but which one I’m blocking on. I would like to join by a line the center of two crosses at random. I’m still new to processing. I’ve understood that line (x + 23, y + 23, random (…

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## [How to create a reverse fill? Possible?](https://discourse.processing.org/t/how-to-create-a-reverse-fill-possible/25842)

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**Author:** [@dgoren1](https://discourse.processing.org/u/dgoren1)\
**Replies:** 1\
**Last updated:** [December 1, 2020, 8:53pm UTC](https://discourse.processing.org/t/how-to-create-a-reverse-fill-possible/25842 "2020-12-01T20:53:10Z")

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Hello! I am trying to figure out how to create a reverse fill of this shape that I have drawn. The purpose of the reverse fill will be to block out some other shapes that I’m drawing outside the borders of this original…

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## [(Delete) Any Image Created Through Clicks](https://discourse.processing.org/t/delete-any-image-created-through-clicks/25867)

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**Author:** [@Matrix](https://discourse.processing.org/u/Matrix)\
**Replies:** 1\
**Last updated:** [December 1, 2020, 7:16pm UTC](https://discourse.processing.org/t/delete-any-image-created-through-clicks/25867 "2020-12-01T19:16:09Z")

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Hi, I’m trying to create a program that makes it so every new click reveals a rectangle in a specific region. When all of the clicks are done, then all the rectangles will be revealed- showing an image. Basically pixel a…

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## [The constructor Gif(bodycreate.Particle, String) is undefined](https://discourse.processing.org/t/the-constructor-gif-bodycreate-particle-string-is-undefined/25719)

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**Author:** [@AbleYudada](https://discourse.processing.org/u/AbleYudada)\
**Replies:** 4\
**Last updated:** [December 1, 2020, 3:45pm UTC](https://discourse.processing.org/t/the-constructor-gif-bodycreate-particle-string-is-undefined/25719 "2020-12-01T15:45:39Z")

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Hi everyone ，I encountered some difficulties in the code. I want to create a new gif when I click the mouse . But it can’t work 。It said The constructor Gif(bodycreate.Particle, String) is undefined. The following is pa…

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## [A moving ball which bounces off the sides](https://discourse.processing.org/t/a-moving-ball-which-bounces-off-the-sides/25860)

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**Author:** [@thedarklord](https://discourse.processing.org/u/thedarklord)\
**Replies:** 1\
**Last updated:** [December 1, 2020, 3:25pm UTC](https://discourse.processing.org/t/a-moving-ball-which-bounces-off-the-sides/25860 "2020-12-01T15:25:10Z")

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I wanna make a ball move and bounce off the walls. Can anyoune help me? thanks in advance

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## [Use Kinect 1 or 2 sensors with Processing 2 or 3](https://discourse.processing.org/t/use-kinect-1-or-2-sensors-with-processing-2-or-3/86)

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**Author:** [@totovr76](https://discourse.processing.org/u/totovr76)\
**Replies:** 28\
**Last updated:** [December 1, 2020, 12:37pm UTC](https://discourse.processing.org/t/use-kinect-1-or-2-sensors-with-processing-2-or-3/86 "2020-12-01T12:37:57Z")

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SimpleOpenNI Repository

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## [Obfuscating your processing code on your own](https://discourse.processing.org/t/obfuscating-your-processing-code-on-your-own/25811)

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**Author:** [@papaboo](https://discourse.processing.org/u/papaboo)\
**Replies:** 11\
**Last updated:** [December 1, 2020, 11:41am UTC](https://discourse.processing.org/t/obfuscating-your-processing-code-on-your-own/25811 "2020-12-01T11:41:43Z")

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I know that anything a machine runs can be decompiled, that’s not what I’m asking. I’d like to find out what could be some good ways to obfuscate the sketch class in the jar file. I’ve searched the forum and found ProG…

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## [How do I change the color of a rectangle once clicked?](https://discourse.processing.org/t/how-do-i-change-the-color-of-a-rectangle-once-clicked/5536)

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**Author:** [@CodingBoy](https://discourse.processing.org/u/CodingBoy)\
**Replies:** 3\
**Last updated:** [December 1, 2020, 12:28am UTC](https://discourse.processing.org/t/how-do-i-change-the-color-of-a-rectangle-once-clicked/5536 "2020-12-01T00:28:01Z")

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Hello! I was trying to create many squares with different colors on them. I succeeded in doing so, but one thing I wanted to do is that once you click on a colored square, the color of that square would change into anoth…

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## [Binary numbers with length and charAt function](https://discourse.processing.org/t/binary-numbers-with-length-and-charat-function/25817)

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**Author:** [@Ellie98](https://discourse.processing.org/u/Ellie98)\
**Replies:** 5\
**Last updated:** [November 30, 2020, 12:56pm UTC](https://discourse.processing.org/t/binary-numbers-with-length-and-charat-function/25817 "2020-11-30T12:56:55Z")

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Hello, I have to get the binary numbers from 0-32. The tutors just gave us the solution by trying, but I didn’t really understand what is happening. Could someone explain this code to me? How am I able to do a loop unt…

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