About
------------------------

A remake of the classic Super Skidmarks. I built this to test and demonstrate a few features:

* 24bit color
* Fullscreen scrolling
* Realtime voxel tracing
* SB16 8-channel mixer with pitch-wheel
* Runs at about 120 FPS on a P166 MMX

Controls
------------------------

* Left-arrow - Turn left
* Right-arrow - Turn right
* Up-arrow - Accelerate
* Down-arrow - Break / reverse
* Q - Quit to DOS

Debug keys (while racing)
------------------------

* B - Enable 'big' mode
* C - Activate nitro
* Z - Hold to skid
* X - Hold for perfect traction
* Space - Hold to jump / fly
* 7 - Show height map
* 8 - Show terrain map
* 9 - Show default map
* F5 - Hold for reference voxel tracer. (much slower)
* F5+F6 - Hold for AA reference voxel tracer .(very much slower)
* F7 - Show dirty rects.

Startup flags
------------------------

To use, exit program with (Q) then type airtime --[FLAG], e.g. airtime --xmas.

 --xmas - Enable XMAS mode
 --vsync - Enable VSYNC
 --debug - Enable debug mode
 --fps - Show FPS
 --highres - Enable high-res mode
 --force_copy - Force slower copy method (enabled by default on Dosbox)

Tools
------------------------

Exit using (Q) then run

* info - Print info regarding the current system.
* vesainfo - List VESA modes.