sputter

A game engine with a focus on small footprint and deterministic simulation.

The project didn't quite start with a "small footprint" goal in mind so there's going to be some work to do there once there's an actual, shippable game in place. In the meantime, I'm doing my best not to introduce additional third-party dependencies.

"Deterministic simulation" means to allow for identical memory representations for game state across all supported platforms, and identical outcomes for each time step given a set of player inputs. I'm looking to use sputter to create multiplayer-first games with latency-hiding rollback netcode at its core.

PaddleArena

PaddleArena is the in-progress game currently driving sputter's development. For all intents and purposes, sputter is just an attempt to separate reusable pieces from the core game logic in PaddleArena. For now, anyway.

Currently, PaddleArena is just a Pong clone, but the intent is to explore fighting game elements in a Pong-like format which allow for meaningful interactions between two human opponents.

Building

Dependencies

At some point I intend to whittle away at this list, but for the moment, here it is:

GLEW
GLFW 3.*
Google Log 0.4.*
GTest
libpng

In Debian:

libglew-dev libglfw3-dev libgoogle-glog-dev googletest libgtest-dev libglm-dev

To build, execute from the source tree root:

mkdir build
cmake -S . -Bbuild
cmake --build build -- -j8

There is a script for building in Windows under ./scripts, which mostly stems from an awkward (in Windows) list of dependencies. I attempt to maintain it but the vast majority of my time is spent working in Linux so it'll be broken... often.

This'll hopefully get better when I get around to pruning external dependencies.

Running PaddleArena

$ ./build/src/exe/paddlearena/paddlearena
Usage: ./build/src/exe/paddlearena/paddlearena <asset_path>

Point to an asset directory. Assets aren't yet checked in, but SoOn !!

Structure