doompanning/external/sdl_nyan

sdl_nyan

Tiny SDL2-based library and demo application for rendering animated nyan cats. Rainbows not included, cats only!

Requirements and building

Requires CMake>=3.14, SDL2 and a c11/c++17 capable compiler.

git clone https://github.com/oxmox42/sdl_nyan
mkdir sdl_nyan/build && cd sdl_nyan/build/
cmake .. &&  make
./sdl_nyan_demo

Usage

Only internal use in the demo application tested so far. Needs more CMake-foo to be installable as "proper" library.

The nyan sprites have been converted to c code and are included in the library, so there's no need to keep the .png files around.

Create a SDL_Renderer and call make_nyan_sprite_sheet_from_mem(). This creates a texture containing all 12 rightward-facing nyan sprites.

Use nyan_sprite_rect() to get the SDL_Rect for a specific sprite. This can be used as the sourceRect for SDL_RenderCopy or SDL_RenderCopyEx.

See the demo on how to make circly, spinny nyans.

Meow!

External projects used in sdl_nyan

• Nyan sprites taken from https://github.com/splitbrain/nyan which does not have a license.
• Uses stb_image from https://github.com/nothings/stb (MIT | public domain).
• image_to_c was used to generate C code from the nyan sprites.