93 lines
No EOL
3.9 KiB
Markdown
93 lines
No EOL
3.9 KiB
Markdown
# Joyful - virtual joystick remapper for Linux
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Joyful is a Linux tool for creating virtual joysticks and mapping inputs from various
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real devices to them. This is useful when playing games that don't support multiple joysticks,
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or for games that don't handle devices changing order (like Star Citizen).
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Perhaps more significantly, Joyful allows you to map combinations of physical inputs to a single output,
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as well as creating other complex scenarios. Want a single button press to simultaneously produce multiple outputs?
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Joyful can do that!
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Are you a Linux gamer who misses the features of Joystick Gremlin? Wish you could map combo inputs,
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or combine your input devices into one virtual device? Are you ok with writing a bunch of YAML?
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Joyful might be the tool for you.
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## Features
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### Current Features - try them today!
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* Create virtual devices with up to 8 axes and 80 buttons.
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* Make simple 1:1 mappings of buttons and axes: Button1 -> VirtualButtonA
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* Make combination mappings: Button1 + Button2 -> VirtualButtonA
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* Multiple modes with per-mode behavior.
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### Future Features - try them at an unspecified point in the future!
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* Partial axis mapping: map sections of an axis to different outputs.
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* Highly configurable deadzones
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* Macros - have a single input produce a sequence of button presses with configurable pauses.
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* Sequence combos - Button1, Button2, Button3 -> VirtualButtonA
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* Proportional axis to button mapping; repeatedly trigger a button with an axis, with frequency controlled by the axis value
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## Configuration
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Configuration is currently done via hand-written YAML files in `~/.config/joyful/`. Joyful will read every
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yaml file in this directory and combine them, so you can split your configuration up however you like.
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Configuration is divided into three sections: `devices`, `modes`, and `rules`. See the `examples/` directory for concrete examples.
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Select options are explained in detail below.
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### Device configuration
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Each entry in `devices` must have a couple of fields:
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* `name` - This is an identifier that your rules will use to refer to the device. It is recommended to avoid spaces or special characters.
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* `type` - Should be `physical` for an input device, and `virtual` for an output device.
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`physical` devices must additionally define these fields:
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* `device_name` - The name of the device as reported by the included `evlist` command. If your device name ends with a space, use quotation marks (`""`) around the name.
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`virtual` devices must additionally define these fields:
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* `buttons` - a number between 0 and 80. Linux may not recognize buttons greater than 56.
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* `axes` - a number between 0 and 8.
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### Rules configuration
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All `rules` must have a `type` field. Valid values for this field are:
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* `simple` - a single input mapped to a single output
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* `combo` - multiple inputs mapped to a single output. The output event will trigger when all the input conditions are met.
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* `latched` - a single input mapped to a single output, but each time the input is pressed, the output will toggle.
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Configuration options for each type vary. See <examples/ruletypes.yml> for an example of each type with all options specified.
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### Modes
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The top-level `modes` field is a simple list of strings, defining the different modes available to rules. The initial mode is always
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the first one in the list. (TODO)
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All rules can have a `modes` field that is a list of strings. If no `modes` field is present, the rule will be active in all modes.
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## Technical details
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Joyful is written in golang, and uses evdev/uinput to manage devices.
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### Building
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To build joyful, install `go` via your package manager, then run:
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```
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go build -o build/ ./...
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```
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Look for binaries in the `build/` directory.
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### Contributing
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Send patches and questions to [annabunches@gmail.com](mailto:annabunches@gmail.com). Make sure the subject of your email starts with `[Joyful]`.
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If enough people show an interest in contributing, I'll consider mirroring the repository on Github. |