This project is a proof of concept of how one might implement ray casting efficiently on a modest system such as an Arduino board. Ray casting is already very fast, but we also use fixed-point arithmetic to avoid slow emulated floating point (as the Atmega2560 and others do not have FPUs).

For now the makefile targets a standard PC, not an Arduino, to ease development. To make this possible there is a wrapper (see the sdl directory) which provides the same interface one would have using the Arduino EsploraTFT library.

To build use the included Makefile - the produced executable is called main. Once running one can use the arrow keys to move around.