I wrote SpeedWaller many years ago (1989?), and upon recently finding it deep in the recesses of my filing cabinet, I decided that it was high time that I released it to the public. SpeedWaller was written in response to the numerous two-line AppleSoft Basic programming contests I used to see in Apple ][ magazines all the time such as Dr. Dobb's Journal. I wrote SpeedWaller over a period of many months in my high school computer lab during study hall, since there was little else to do. The last three months I remember distinctly because I was trying figure out how to shave off ten more characters in order to get it to fit in two lines. Crazy. :)
To the dismay of my future self, I was so exhausted with the game that when I was finally done I never submitted it to any of the contests, thereby missing out on endless fame, fortune and glory.
The program is, to the best of my knowledge, the
only two-line two-player graphics action game in existence.
(Well, in Applesoft Basic, anyways, which has a 255 character limit. Sure, you could write a whole operating system in one line of C, it would just be a really long line)
You can download a disk image with speedwaller or you can run it directly on an Apple ][ emulator in your browser courtesy Apple][js. Just type "RUN SPEEDWALLER"OLD (sites are now gone):
If you try it out, please tell me what you think, via email, at:
Player 1 Player 2 W I ^ ^ | | A <-+-> S J <-+-> K | | v v Z MTry playing the game before you read the rules in the "Hints" file.
0 REM SPEEDWALLER - COPYRIGHT DAVID LJUNG - I RETAIN ALL RIGHTS AND OWNERSHIP OF THIS SOFTWARE - TO CHANGE AT MY DISCRETION - THIS REM MUST REMAIN WITH THE PROGRAM UNCHANGED. CREATED 1988-1989 BY DAVID LJUNG - EMAIL SPEEDWALLER@DAVESOURCE.COM 1 ONSCRN(X,Y)<>7 AND B<>0 AND SCRN(U,V) <> 7 GOTO 2: HOME : GR : X=10 : Y=20 : U=30 : V=Y : I=201 : J=202 : K=203 : M=205 : W=215 : A=193 : S=211 : Z=218 : O=1 : Q=-1 : P=49152 : COLOR=7 : HLIN 0,39 AT 0 : HLIN 0,39 AT 39 : VLIN 0,39 AT 0 : VLIN 0,39 AT 39 : VTAB 22 : ? "WASZ IJKM "C : ON B=0 GOTO 2 : CALL -678 : RUN 2 PLOT X,Y : PLOT U,V : B=PEEK(P) : G= B<>Z AND B<>W: H=B<>A AND B<>S : O=G*(O*H+(B=S)-(B=A)) : L=H*(L*G+(B=Z)-(B=W)) : G=B<>I AND B<>M : H=B<>J AND B<>K : Q=G*(Q*H+(B=K)-(B=J)) : R=H*(R*G+(B=M)-(B=I)) : X=X+O : Y=Y+L : U=U+Q : V=V+R : FOR N=1 TO 99 : NEXT : C=C+1 : VTAB 22 : HTAB 12 : ? C : GOTO 1Type it in like this mess:
1ONSCRN(X,Y)<>7ANDB<>0ANDSCRN(U,V)<>7GOTO2:HOME:GR:X=10:Y=20:U=30:V=Y:I=201:J=202:K=203:M=205:W=215:A=193:S=211:Z=218:O=1:Q=-1:P=49152:COLOR=7:HLIN0,39AT0:HLIN0,39AT39:VLIN0,39AT0:VLIN0,39AT39:VTAB22:?"WASZ IJKM "C:ONB=0GOTO2:CALL-678:RUN 2PLOTX,Y:PLOTU,V:B=PEEK(P):G=B<>ZANDB<>W:H=B<>AANDB<>S:O=G*(O*H+(B=S)-(B=A)):L=H*(L*G+(B=Z)-(B=W)):G=B<>IANDB<>M:H=B<>JANDB<>K:Q=G*(Q*H+(B=K)-(B=J)):R=H*(R*G+(B=M)-(B=I)):X=X+O:Y=Y+L:U=U+Q:V=V+R:FORN=1TO99:NEXT:C=C+1:VTAB22:HTAB12:?C:GOTO1Total characters: 239+239 = 478 (16 characters are for "instructions" and the counter)
The game is remniscent of Tron Light Cycles or Snafu, if those are familiar. If not, the game consists of two 'cars' - represented using lo-res blocks - that the players drive around the screen. Each car leaves a trail behind it. The game continues until one of the players crashes into one of the trails or the walls of the screen. The object is, of course, to trap your opponent and stay alive longer.
If you are looking for a real Tron clone, I recommend glTron.
If you don't have a second player, then you can also try to challenge 'yourself' by driving both cars and seeing how long you can stay alive. There is a counter that keeps track of time at the bottom of the screen for this purpose.
When the game is over, you can hit a return to start again. To stop the game, type <control-c> while the game is running.
Have fun, and if you try it, please do drop me a line.