gdx-flatbuffers

A fork of flatbuffers-java with minor patches to allow compilation using GWT under LibGDX.
Both the runtime and source code generated using flatc work.

Patches

Ignore Utf8Old.java in GWT module
Replace usages of String.format with operators (Utf8Safe.java)
Replace usages of floatToRawIntBits and doubleToRawLongBits (ArrayReadWriteBuf.java)

Gradle dependency

Make sure the mavenCentral() repository is enabled.
Specify $fbsversion in gradle.properties like so.

fbsVersion=24.3.25

Desktop/Android/IOS

In core/build.gradle

api "io.github.solirs:gdx-flatbuffers:$fbsVersion"

GWT (HTML)

In html/build.gradle

  implementation "io.github.solirs:gdx-flatbuffers:$fbsVersion"  
  implementation "io.github.solirs:gdx-flatbuffers:$fbsVersion:sources"

In GdxDefinition.gwt.xml

<inherits name="com.google.flatbuffers.flatbuffers-gwt" />

Usage

Exactly the same as google's flatbuffers-java. Even the imports are the same so as to not break flatc-generated files.
A tutorial on flatbuffers usage in java is available here (don't forget to choose java as the language).

Limitations

Can't use Utf8Old as its whole point is to rely on a part of the stdlib that's not implemented by GWT/LibGDX.
May require LibGDX as it implements several classes which are missing in GWT's stdlib implementation.