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README.rst

Taisei

Introduction

Taisei is an open clone of the Tōhō Project series. Tōhō is a one-man project of shoot-em-up games set in an isolated world full of Japanese folklore.

Installation

Dependencies

  • SDL2 >= 2.0.5, SDL2_mixer, SDL2_image
  • zlib
  • libzip >= 1.0
  • libpng >= 1.5.0
  • libjpeg
  • freetype2
  • OpenGL >= 3.3

Build-only dependencies

  • meson >= 0.45.0 (build system)
  • Python >= 3.4
  • pkg-config
  • docutils (optional, for documentation)

To build and install Taisei just follow these steps.

mkdir build
cd build
meson --prefix=$yourprefix ..
ninja
ninja install

This will install game data to $prefix/share/taisei/ and build this path statically into the executable. This might be a package maintainer’s choice. Alternatively you may want to add -Dinstall_relative=true to get a relative structure like

$prefix/taisei
$prefix/data/

install_relative is always set when building for Windows.

Where are my replays, screenshots and settings?

Taisei stores all data in a platform-specific directory:

  • On Windows, this will probably be %APPDATA%\taisei
  • On macOS, it's $HOME/Library/Application Support/taisei
  • On Linux, *BSD, and most other Unix-like systems, it's $XDG_DATA_HOME/taisei or $HOME/.local/share/taisei

This is referred to as the Storage Directory. You can set the environment variable TAISEI_STORAGE_PATH to override this behaviour.

Game controller support

Taisei uses SDL2's unified GameController API. This allows us to correctly support any device that SDL recognizes by default, while treating all of them the same way. This also means that if your device is not supported by SDL, you will not be able to use it unless you provide a custom mapping. If your controller is listed in the settings menu, then you're fine. If not, read on.

An example mapping string looks like this:

03000000ba2200002010000001010000,Jess Technology USB Game Controller,a:b2,b:b1,back:b8,dpdown:h0.4,dpleft:h0.8,dpright:h0.2,dpup:h0.1,guide:,leftshoulder:b4,lefttrigger:b6,leftx:a0,lefty:a1,rightshoulder:b5,righttrigger:b7,rightx:a3,righty:a2,start:b9,x:b3,y:b0,

There are a few ways to generate a custom mapping:

  • You can use the controllermap utility, which comes with SDL source code.
  • If you use Steam, you can configure your controller there. Then you can add Taisei as a non-Steam game; run it from Steam and everything should just work™. In case you don't want to do that, find config/config.vdf in your Steam installation directory, and look for the SDL_GamepadBind variable. It contains a list of SDL mappings separated by line breaks.
  • You can also try the SDL2 Gamepad Tool by General Arcade. This program is free to use, but not open source.
  • Finally, you can try to write a mapping by hand. You will probably have to refer to the SDL documentation. See gamecontrollerdb.txt for some more examples.

Once you have your mapping, there are two ways to make Taisei use it:

  • Create a file named gamecontrollerdb.txt where your config, replays and screenshots are, and put each mapping on a new line.
  • Put your mappings in the environment variable SDL_GAMECONTROLLERCONFIG, also separated by line breaks. Other games that use the GameController API will also pick them up.

When you're done, please consider contributing your mappings to SDL, SDL_GameControllerDB, and us, so that other people can benefit from your work.

Also note that we currently only handle input from analog axes and digital buttons. Hats, analog buttons, and anything more exotic will not work, unless remapped.

Troubleshooting

Sound problems (Linux)

If your sound becomes glitchy, and you encounter lot of console messages like:

ALSA lib pcm.c:7234:(snd_pcm_recover) underrun occurred

it seems like you possibly have broken ALSA configuration. This may be fixed by playing with parameter values of pcm.dmixer.slave option group in /etc/asound.conf or wherever you have your ALSA configuration. Commenting period_time, period_size, buffer_size, rate may give you the first approach to what to do.

Contact

http://taisei-project.org/

#taisei-project on Freenode