README.md

   1 [![Build Status](https://travis-ci.org/tsoding/nothing.svg?branch=master)](https://travis-ci.org/tsoding/nothing)
   2
   3 # Nothing
   4
   5 ![](https://i.imgur.com/7mECYKU.gif)
   6 ![](https://i.imgur.com/ABcJqB5.gif)
   7
   8 ## Quick Start
   9
  10 ```console
  11 $ nix-shell              # Only on NixOS
  12 $ mkdir build
  13 $ cd build/
  14 $ cmake ..
  15 $ make
  16 $ ./nothing ../levels/level-01.txt
  17 $ ./nothing_test
  18 ```
  19
  20 ## Editing Levels
  21
  22 Generally creating a level looks like:
  23
  24 ```
  25 SVG File -> Custom Level File -> Game
  26 ```
  27
  28 To convert SVG to the level file install [xqilla] and run
  29 [svg2rects.xqe] script:
  30
  31 ```console
  32 $ xqilla ./devtools/svg2rects.xqe -i <svg-file> -o <level-file>
  33 ```
  34
  35 All of the levels reside in the [./levels/] folder. Use
  36 [./levels/Makefile] to automatically rebuild all levels.
  37
  38 ### Level Editing Workflow
  39
  40 1. `$ inkscape ./levels/level.svg &`
  41 2. `$ ./build/nothing ./levels/level.txt &`
  42 3. `$ cd ./levels/`
  43 4. `$ make watch`
  44 5. Edit Level in Inkscape and Save
  45 6. Switch to the Game and reload level by pressing Q
  46 7. Go to 5
  47
  48 ### Objects Reference
  49
  50 #### SVG rect node
  51
  52 | Regex of id  | Description                                                                                                       |
  53 |--------------|-------------------------------------------------------------------------------------------------------------------|
  54 | `player`     | Defines the **position** of the Player. **Size is ignored**.                                                      |
  55 | `rect.*`     | Defines the **size** and **position** of an impenetrable platform block                                           |
  56 | `box.*`      | Defines the **size** and **position** of a rigid box that obeys the physics of the game                           |
  57 | `region(.*)` | Defines the **size** and **position** of a region that hides the Goals. `\1` defines the id of the Goal to hide.  |
  58 | `goal(.*)`   | Defines the **position** of the goal. **Size is ignored**. `\1` defines the id of the region that hides the goal. |
  59 | `lava.*`     | Defines the **position** and **size** of a lava block.                                                            |
  60 | `background` | Defines the **color** of the background. **Position and size are ignored**.                                       |
  61 | `backrect.*` | Defines the **size** and **position** of a solid block in the background.                                         |
  62
  63 #### SVG text node
  64
  65 | Regex of id | Description                                                                |
  66 |-------------|----------------------------------------------------------------------------|
  67 | `label.*`   | Defines **position** and **text** of a in-game label. **Size is ignored**. |
  68
  69 ## Build on Windows
  70
  71 You need to install [conan][] and [Visual Studio 2017][visual-studio].
  72
  73 ### Dependencies
  74
  75 Current version of [SDL2/2.0.5@lasote/stable][conan-sdl2] in the conan-transit
  76 repository is not compatible with the latest conan, so you'll need to install
  77 it locally from the git repository:
  78
  79 ```console
  80 $ git clone https://github.com/lasote/conan-sdl2.git # temporary, I hope hope hope
  81 $ cd conan-sdl2
  82 $ conan export SDL2/2.0.5@lasote/stable
  83 ```
  84
  85 ### Building
  86
  87 Execute the following commands inside of the `nothing` directory:
  88
  89 ```console
  90 $ conan install --build missing --install-folder build
  91 $ cd build
  92 $ cmake .. -G "Visual Studio 15 2017 Win64"
  93 ```
  94
  95 After that, build the `build/nothing.sln` file with Visual Studio.
  96
  97 ## Support
  98
  99 You can support my work via
 100
 101 - Twitch channel: https://www.twitch.tv/subs/tsoding
 102 - Patreon: https://www.patreon.com/tsoding
 103
 104 [conan]: https://www.conan.io/
 105 [conan-sdl2]: https://bintray.com/conan/conan-transit/SDL2%3Alasote/2.0.5%3Astable
 106 [visual-studio]: https://www.visualstudio.com/
 107 [xqilla]: http://xqilla.sourceforge.net/HomePage
 108 [svg2rects.xqe]: ./devtools/svg2rects.xqe
 109 [./levels/]: ./levels/
 110 [./levels/Makefile]: ./levels/Makefile