This is a fork of the Descent 3 open source engine, tailored to retro handhelds using gl4es and PortMaster. Binaries built from this fork are used in PortMaster-Descent3. This fork contains several commits that deviate from the parent repository like QoL commits for controller-only setups.

Examples:

• Adjust viewport and scissor to automatically scale properly among various resolutions and aspect ratios (no need for -f, -w, -width <w>, -height <h>, or -aspect)
• Make mouse cursor invisible in menus in Release builds (still visible and usable in Debug builds)
• Change level select menu to a listbox with pretty names for core levels
• Prefill savegame dialog with current level number if blank slot or different level than existing slot

You are of course free to cherry-pick commits and/or use them as inspiration for your own.

Building

Run these commands:

sudo apt update
sudo apt install -y --no-install-recommends git ninja-build cmake g++ libsdl2-dev zlib1g-dev
git clone https://github.com/JeodC/Descent3
cd Descent3
cmake --preset linux
cmake --build --preset linux --config [Debug|Release]

You can use the following commands during the cmake --preset linux step:

-D ENABLE_LOGGER=[ON|OFF] - This enables mprintf statements in Debug builds, using the -logfile argument. Defaults to ON.
-D ENABLE_NETGAMES=[ON|OFF] - This enables building the netgames, which go in the netgames directory. Defaults to OFF.
-D ENABLE_NETGAMES=[ON|OFF] - This enables building the level scripts (d3-linux.hog). You usually don't have to build this very often. Defaults to OFF.

Once CMake finishes, the built files will be put in builds/linux/Descent3/Debug or builds/linux/Descent3/Release.