Traffic

Installation

1. Install SDL3

follow sdl3.cr install instructions to get all the available SDL3 packages, image, TTY, mixer

2. Run shards install

shards install

3. Build and Run

make build

make run

(run will build if needed)

outputs to build folder. there are also release make actions, see the Makefile for full action list

Documentation

To see full documentation of GameSDL, and SDL3 (included bindings library) you can run the crystal docs command, but specify the lib entry points, in correct order (SDL3 first, GSDL second, because GSDL depends on SDL3):

crystal docs lib/sdl3/src/sdl3.cr src/game_sdl.cr

or in your game:

crystal docs lib/sdl3/src/sdl3.cr lib/game_sdl/src/game_sdl.cr src/your_game_entry_point.cr

Unfortunately the delegate methods docs will not expand to full method signatures, so you'll need to infer wrapped classes like GSDL::Point that wraps SDL3::FPoint to see those method signatures. Eventually I plan to either document each delegate so the parameters and return types are clear, or fully wrap the methods themselves so it is even more clear.