Created
June 18, 2024 19:21
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Jim Storer's LANDER (Focal) patched to maybe remove ancient bug
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| 01.04 T "CONTROL CALLING LUNAR MODULE. MANUAL CONTROL IS NECESSARY"! | |
| 01.06 T "YOU MAY RESET FUEL RATE K EACH 10 SECS TO 0 OR ANY VALUE"! | |
| 01.08 T "BETWEEN 8 & 200 LBS/SEC. YOU'VE 16000 LBS FUEL. ESTIMATED"! | |
| 01.11 T "FREE FALL IMPACT TIME-120 SECS. CAPSULE WEIGHT-32500 LBS"! | |
| 01.20 T "FIRST RADAR CHECK COMING UP"!!!;E | |
| 01.30 T "COMMENCE LANDING PROCEDURE"!"TIME,SECS ALTITUDE," | |
| 01.40 T "MILES+FEET VELOCITY,MPH FUEL,LBS FUEL RATE"! | |
| 01.50 S A=120;S V=1;S M=32500;S N=16500;S G=.001;S Z=1.8 | |
| 02.10 T " "%3,L," "FITR(A)," "%4,5280*(A-FITR(A)) | |
| 02.20 T %6.02," "3600*V," "%6.01,M-N," K=";A K;S T=10 | |
| 02.70 T %7.02;I (200-K)2.72;I (8-K)3.1,3.1;I (K)2.72,3.1 | |
| 02.72 T "NOT POSSIBLE";F X=1,51;T "." | |
| 02.73 T "K=";A K;G 2.7 | |
| 03.10 I (M-N-.001)4.1;I (T-.001)2.1;S S=T | |
| 03.40 I (N+S*K-M)3.5,3.5;S S=(M-N)/K | |
| 03.50 D 9;I (I)7.1,7.1;I (V)3.8,3.8;I (J)8.1 | |
| 03.80 D 6;G 3.1 | |
| 04.10 T "FUEL OUT AT"L," SECS"! | |
| 04.40 S S=(FSQT(V*V+2*A*G)-V)/G;S V=V+G*S;S L=L+S | |
| 05.10 T "ON THE MOON AT"L," SECS"!;S W=3600*V | |
| 05.20 T "IMPACT VELOCITY OF"W," M.P.H."!"FUEL LEFT:"M-N," LBS"! | |
| 05.40 I (1-W)5.5,5.5;T "PERFECT LANDING !-(LUCKY)"!;G 5.9 | |
| 05.50 I (10-W)5.6,5.6;T "GOOD LANDING-(COULD BE BETTER)";G 5.9 | |
| 05.60 I (22-W)5.7,5.7;T "CONGRATULATIONS ON A POOR LANDING";G 5.9 | |
| 05.70 I (40-W)5.81,5.81;T "CRAFT DAMAGE. GOOD LUCK";G 5.9 | |
| 05.81 I (60-W)5.82,5.82;T "CRASH LANDING-YOU'VE 5 HRS OXYGEN";G 5.9 | |
| 05.82 T "SORRY,BUT THERE WERE NO SURVIVORS-YOU BLEW IT!"!"IN " | |
| 05.83 T "FACT YOU BLASTED A NEW LUNAR CRATER",W*.277777," FT. DEEP"! | |
| 05.90 T !!!!"TRY AGAIN?"! | |
| 05.92 A "(ANS. YES OR NO)"P;I (P-0NO)5.94,5.98 | |
| 05.94 I (P-0YES)5.92,1.2,5.92 | |
| 05.98 T "CONTROL OUT"!!!;Q | |
| 06.10 S L=L+S;S T=T-S;S M=M-S*K;S A=I;S V=J | |
| 07.10 I (S-.005)5.1;S S=2*A/(V+FSQT(V*V+2*A*(G-Z*K/M))) | |
| 07.30 D 9;D 6;G 7.1 | |
| 08.10 S W=(1-M*G/Z*K)/2;S S=M*V/(Z*K*(W+FSQT(W*W+V/(2*Z))));D 9 | |
| 08.30 I (I)7.1,7.1;D 6;I (-J)3.1,3.1;I (V)3.1,3.1,8.1 | |
| 09.10 S Q=S*K/M;S J=V+G*S+Z*(-Q-Q^2/2-Q^3/3-Q^4/4-Q^5/5) | |
| 09.40 S I=A-G*S*S/2-V*S+Z*S*(Q/2+Q^2/6+Q^3/12+Q^4/20+Q^5/30) |
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see Jim Storer - Lunar Landing Game Related Documents for source, and How I Found A 55 Year Old Bug In The First Lunar Lander Game | Martin C. Martin for details of the bug.
The change is in line 08.10. It may not be correct