The answer labels can be made to wrap text automatically based on their width if HTML tags are pre- and appended to the text and displayed with a JLabel instead of drawing with graphics.

By replacing the question text with a label as well, it should become more clear to read and gives the additional benefit of automatic text wrapping.

To do:

• Replace g.drawString with JLabel members
• Use HTML tags when setting answer labels
• JLabel location might have to adapt to their contents to prevent overlap
• Draw button background behind labels
• Set font color for labels for readability

It would be nice if it were possible to embed audio into questions. It could be useful for quizzes for learning languages or music identification (or various other things).

Several implementation questions though:

1. Where will the audio be saved?
2. Will the audio be played by the host device or by the clients?

Question 1

If the audio is saved as part of the quiz, then the audio data will have to be serialized.

Advantages:

• Sharing quizzes doesn't require sharing resource files. This is already the case for image data.
• Can send audio data over network to clients

Disadvantages:

• Increased file size for quizzes
• Increased complexity

If the audio data is not serialized, other questions arise:

1. Where will the audio be stored? How will Toohak know where to access them? What if they move?
2. What will the implications be for sharing quizzes?
3. Will it still be possible to send audio data to clients?

Question 2

One of the primary advantages of Toohak over Kahoot is that all the necessary information for answering a question is sent to the clients. Although the leaderboard is only visible on the server (for now, anyway), clients don't have to be physically near the server to play. If this is to continue to be the case, then the audio data must be transmitted to the clients. This could incur extreme latency and server-side overhead. The alternative is to simply not support audio data questions for when people aren't actually near the server, but this would be a compromise when questions and images are already independent of physical location.

Additionally, if the audio data is played client side and the players are close to one another, then they'll all be playing the audio over each other, which would be detrimental to the experience.

Suggested solution

One potential solution that should be simple to implement is the following:

• Audio files must be stored in the same directory as the quiz file
• Search for audio files in the same directory as the quiz file when needed (the path is retrieved when the quiz file is loaded)
• Play audio server-side (compromise as stated for question 2)
• Sharing quizzes would require sharing audio files
• No need for serializing, en/decoding audio, or transmitting audio data

Switching to JavaFX instead of Swing might solve the Windows font size issue, where all text in labels and buttons are rendered smaller on Windows due to different font size calculations.

Hello.

Update :
Before I was try to execute the codes, not the compiled jar file. Running the jar file, downloaded from the released page, works.

Now I am trying to edit the codes to replace the g.drawstring to JLabel. May I know how to compile it with the changes?

Previous Post :
I'm downloaded the files and tried to run it but it gives an error :

I tried to search for the error in the console but couldn't find it.

I also tried using the terminal with java -jar commons-cvs-1.5.jar and outputs an error :
no main manifest attribute, in commons-csv-1.5.jar

Am I doing something wrong?

My java version is java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)

Embedding video in questions would be a significant accomplishment. Kahoot allows video to be added to questions by providing a YouTube link. However, a primary goal of Toohak is the ability for quizzes to be played without the influence of latency or an internet connection at all.

However, videos are big and complex. Similar to the audio issue in #1, the implementation could take several forms. The same questions are raised (see the audio issue), but also the following new ones:

1. Where would the video be played? Does the server window size need to increase or just be adaptive?
2. What about video looping?
3. What if users don't have a local copy of the video they want to embed?

A potential solution is to simply add an additional tab to the server's tabbed view and provide playback controls, but this greatly increases complexity and takes processing time away from actually hosting the quiz. Additionally, it would require that the users be close to the server machine and that the server screen be visible. This goes against the goal of allowing users to play without physical proximity to the server.

Transmitting video data to the clients is an unlikely solution. The data would have to be compressed as much as possible and serialized, which could incur serious latency and overheads. A potential solution for the latency is to send all multimedia data to clients before the quiz begins, but the complexity issue remains.

Kahoot! provides a spreadsheet with the results of the quiz after it completes. This should include what each person answered for each question and assorted additional information.

The implementation can use Apache's CSV library, available under the Apache 2.0 license. This license should be compatible with GPLv3.

Hi,

I'm not a developer but I want to try your software, ¿Could you please help me to know how to use on a LAN network?

Regards!

Just ran into this project, it'd be nice to have some screenshots to know what this thing looks like, people may not necessarily even know Kahoot.

EDIT: looks like there are some here at least - https://arc676.itch.io/toohak

I want to try toohak, but i dont know how to run it in window