lavat/README.md
2022-11-10 23:20:03 -05:00

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# lavat
Little program that simulates a lava lamp in the terminal.
![demo](https://github.com/AngelJumbo/demos/blob/main/lavat/3.gif?raw=true)
## Installation
Requirements: A Unix-like system, a C compiler and make.
```
git clone https://github.com/AngelJumbo/lavat
cd lavat
make install
```
### Arch Linux
Lavat is also available on the AUR [here](https://aur.archlinux.org/packages/lavat-git). Install it with your favourite AUR-helper or manually.
```
$ paru -S lavat-git
```
## Usage
```
Usage: lavat [OPTIONS]
OPTIONS:
-c <COLOR> Set color. Available colours: red, blue, yellow, green, cyan and magenta.
Besides those colors the default one is the normal foreground of your terminal.
-s <SPEED> Set the speed, from 1 to 5. (default 1)
-r <RADIUS> Set the radius of the metaballs, from 1 to 10. (default: 5)
-R <RIM> Set a rim for each metaball, sizes from 1 to 5.(default: none)
This option does not work with the default color.
-k <COLOR> Set the color of the rim if there is one. Available colours: red, blue, yellow, green, cyan and magenta.
-b <NBALLS> Set the number of metaballs in the simulation, from 2 to 20. (default: 10)
-F <CHARS> Allows for a custom set of chars to be used
Only ascii symbols are supported for now, wide/unicode characters may appear broken.
-C Retain the entire lava inside the terminal.
It may not work well with a lot of balls or with a bigger radius than the default one.
-h Print help.
```
## Demo
`lavat -c red -R 1`
![demo 1](https://github.com/AngelJumbo/demos/blob/main/lavat/1.gif?raw=true)
`lavat -c cyan -R 4 -b 20 -r 2`
![demo 2](https://github.com/AngelJumbo/demos/blob/main/lavat/2.gif?raw=true)
If you send more than one character to the -F option you can have 3d-ish effect.
`lavat -c blue -R2 -F @@:::::: -r10`
![demo 2](https://github.com/AngelJumbo/demos/blob/main/lavat/4.gif?raw=true)
For the Alacritty and Kitty users I know that the -R option haven't been working for you, but now you can set the color of the rim independently. Try:
`lavat -c yellow -R1 -k red`
![demo 2](https://github.com/AngelJumbo/demos/blob/main/lavat/5.gif?raw=true)
(The colors depend on your color scheme.)
## Credits
- This program is made with [Termbox2](https://github.com/termbox/termbox2).
- [Lava lamp in JavaScript](https://codeguppy.com/site/tutorials/lava-lamp.html)