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Building on Ubuntu 18.04

1) Install Emscripten

a) Get the Emscripten SDK and install Emscripten "upstream" variant:

git clone https://github.com/emscripten-core/emsdk.git
./emsdk/emsdk install latest-upstream
./emsdk/emsdk activate latest-upstream

b) Enable Emscripten tools from the command line

source ./emsdk/emsdk_env.sh

2) Build arxwasm

a) Get arxwasm source code

git clone https://github.com/gabrielcuvillier/arxwasm.git
cd arxwasm
git submodule init
git submodule update

b) Build the project

mkdir build-wasm
cd build-wasm
emcmake cmake .. -DCMAKE_BUILD_TYPE=Release
emmake make

Normaly, this should have generated arxwasm.html, arxwasm.js, and arxwasm.wasm files.

4) Package the game demo data

TBD - See data/emscripten/package_demo_data.sh

5) Deploy locally

a) Run a local web server from the build directory. The simplest is to use python SimpleHTTPServer:

python -m SimpleHTTPServer 8080

or (python 3)

python -m http.server 8080

b) open your favorite Browser to http://localhost:8080/arxwasm.html

6) Enjoy!

NB: it is possible to do a native build also, to compare the performance for example. To do so:

  mkdir build-native
  cd build-native
  cmake .. -DCMAKE_BUILD_TYPE=Release
  make

Building on Windows 10

While it is possible to build using the Windows version of Emscripten toolchain, it is a bit more tedious to do (require to manually install Windows version of Cmake, GNU Make or Ninja, and setup environment paths).

A simpler way is to use WSL (Windows Subsystem for Linux) with Ubuntu 18.04 installed: the instructions are then exactly the same as the Ubuntu build. Nice!

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