ZX Computing Dec 1982/Jan 1983 p13



A Pair of Zippy Road Runners



ZX81 programs often run, just as they are, when typed into a Spectrum. But

usually the effort of adding a little colour and sound is worthwhile.



For this article, Tim Hartnell wrote a ZX81 "car driving" program in which

you can use the "Z" and "M" keys to drive it down a twisting, turning track;

and then decided to convert the game for the Spectrum. You might like to run

Tim's versions first and then work out your own variations.



Submission notes -



included:

- Road Runner for ZX81

- Original Road Runner for Spectrum (Run or Goto 0 to start)

- Improved Road Runner for Spectrum



For the improved version I have changed the keys from 'Z' and 'M' to the much

friendlier 'z' and 'm' which don't need you to hold down Caps Shift to play

the game. I've also added a restart-on-keypress to save having to continually

break and re-run. I've left the slightly dodgy collision detection which lets

you sideswipe the scenery as long as you don't run into it.



Andy Krouwel

22nd March 2004