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Re: A BASIC interpreter to run StarTrek

by GrandFather (Saint)
on Aug 11, 2021 at 12:05 UTC ( #11135786=note: print w/replies, xml ) Need Help??


in reply to A BASIC interpreter to run StarTrek

and the BASIC source for StarTrek: (note: copy the following into a file called StarTrek.bas in the same folder as the Perl source given in the OP)

10 REM SUPER STARTREK - MAY 16,1978 - REQUIRES 24K MEMORY 30 REM 40 REM **** **** STAR TREK **** **** 50 REM **** SIMULATION OF A MISSION OF THE STARSHIP ENTERPRISE, 60 REM **** AS SEEN ON THE STAR TREK TV SHOW. 70 REM **** ORIGIONAL PROGRAM BY MIKE MAYFIELD, MODIFIED VERSION 80 REM **** PUBLISHED IN DEC'S "101 BASIC GAMES", BY DAVE AHL. 90 REM **** MODIFICATIONS TO THE LATTER (PLUS DEBUGGING) BY BOB 100 REM *** LEEDOM - APRIL & DECEMBER 1974, 110 REM *** WITH A LITTLE HELP FROM HIS FRIENDS . . . 120 REM *** COMMENTS, EPITHETS, AND SUGGESTIONS SOLICITED -- 130 REM *** SEND TO: R. C. LEEDOM 140 REM *** WESTINGHOUSE DEFENSE & ELECTRONICS SYSTEMS CNTR. 150 REM *** BOX 746, M.S. 338 160 REM *** BALTIMORE, MD 21203 170 REM *** 180 REM *** CONVERTED TO MICROSOFT 8 K BASIC 3/16/78 BY JOHN GORDERS 190 REM *** LINE NUMBERS FROM VERSION STREK7 OF 1/12/75 PRESERVED AS 200 REM *** MUCH AS POSSIBLE WHILE USING MULTIPLE STATEMENTS PER LINE 205 REM *** SOME LINES ARE LONGER THAN 72 CHARACTERS; THIS WAS DONE 210 REM *** BY USING "?" INSTEAD OF "PRINT" WHEN ENTERING LINES 215 REM *** 220 PRINT:PRINT:PRINT:PRINT:PRINT:PRINT:PRINT:PRINT:PRINT:PRINT:PRINT 221 PRINT" ,------*------," 222 PRINT" ,------------- '--- ------'" 223 PRINT" '-------- --' / /" 224 PRINT" ,---' '-------/ /--," 225 PRINT" '----------------'":PRINT 226 PRINT" THE USS ENTERPRISE --- NCC-1701" 227 PRINT:PRINT:PRINT:PRINT:PRINT 260 REM CLEAR 600 270 Z$=" " 330 DIM G(8,8),C(9,2),K(3,3),N(3),Z(8,8),D(8) 370 T=INT(RND(1)*20+20)*100:T0=T:T9=25+INT(RND(1)*10):D0=0:E=3000:E0=E 440 P=10:P0=P:S9=200:S=0:B9=2:K9=0:X$="":X0$=" IS " 470 DEF FND(D)=SQR((K(I,1)-S1)^2+(K(I,2)-S2)^2) 475 DEF FNR(R)=INT(RND(R)*7.98+1.01) 480 REM INITIALIZE ENTERPRIZE'S POSITION 490 Q1=FNR(1):Q2=FNR(1):S1=FNR(1):S2=FNR(1) 530 FORI=1TO9:C(I,1)=0:C(I,2)=0:NEXTI 540 C(3,1)=-1:C(2,1)=-1:C(4,1)=-1:C(4,2)=-1:C(5,2)=-1:C(6,2)=-1 600 C(1,2)=1:C(2,2)=1:C(6,1)=1:C(7,1)=1:C(8,1)=1:C(8,2)=1:C(9,2)=1 670 FORI=1TO8:D(I)=0:NEXTI 710 A1$="NAVSRSLRSPHATORSHEDAMCOMXXXBRK" 810 REM SETUP WHAT EXHISTS IN GALAXY . . . 815 REM K3= # KLINGONS B3= # STARBASES S3 = # STARS 820 FORI=1TO8:FORJ=1TO8:K3=0:Z(I,J)=0:R1=RND(1) 850 IFR1>.98THENK3=3:K9=K9+3:GOTO980 860 IFR1>.95THENK3=2:K9=K9+2:GOTO980 870 IFR1>.80THENK3=1:K9=K9+1 980 B3=0:IFRND(1)>.96THENB3=1:B9=B9+1 1040 G(I,J)=K3*100+B3*10+FNR(1):NEXTJ:NEXTI:IFK9>T9THENT9=K9+1 1100 IFB9<>0THEN1200 1150 IFG(Q1,Q2)<200THENG(Q1,Q2)=G(Q1,Q2)+120:K9=K9+1 1160 B9=1:G(Q1,Q2)=G(Q1,Q2)+10:Q1=FNR(1):Q2=FNR(1) 1200 K7=K9:IFB9<>1THENX$="S":X0$=" ARE " 1230 PRINT"YOUR ORDERS ARE AS FOLLOWS:" 1240 PRINT" DESTROY THE";K9;"KLINGON WARSHIPS WHICH HAVE INVADED" 1252 PRINT" THE GALAXY BEFORE THEY CAN ATTACK FEDERATION HEADQUARTER +S" 1260 PRINT" ON STARDATE";T0+T9;". THIS GIVES YOU";T9;"DAYS. THERE" +;X0$ 1272 PRINT" ";B9;"STARBASE";X$;" IN THE GALAXY FOR RESUPPLYING YOUR S +HIP" 1280 PRINT:REM PRINT"HIT ANY KEY EXCEPT RETURN WHEN READY TO ACCEPT CO +MMAND" 1300 I=RND(1):REM IF INP(1)=13 THEN 1300 1310 REM HERE ANY TIME NEW QUADRANT ENTERED 1320 Z4=Q1:Z5=Q2:K3=0:B3=0:S3=0:G5=0:D4=.5*RND(1):Z(Q1,Q2)=G(Q1,Q2) 1390 IFQ1<1ORQ1>8ORQ2<1ORQ2>8THEN1600 1430 GOSUB 9030:PRINT:IF T0<>T THEN 1490 1460 PRINT"YOUR MISSION BEGINS WITH YOUR STARSHIP LOCATED" 1470 PRINT"IN THE GALACTIC QUADRANT, '";G2$;"'.":GOTO 1500 1490 PRINT"NOW ENTERING ";G2$;" QUADRANT . . ." 1500 PRINT:K3=INT(G(Q1,Q2)*.01):B3=INT(G(Q1,Q2)*.1)-10*K3 1540 S3=G(Q1,Q2)-100*K3-10*B3:IFK3=0THEN1590 1560 PRINT"COMBAT AREA CONDITION RED":IFS>200THEN1590 1580 PRINT" SHIELDS DANGEROUSLY LOW" 1590 FORI=1TO3:K(I,1)=0:K(I,2)=0:NEXTI 1600 FORI=1TO3:K(I,3)=0:NEXTI:Q$=Z$+Z$+Z$+Z$+Z$+Z$+Z$+LEFT$(Z$,17) 1660 REM POSITION ENTERPRISE IN QUADRANT, THEN PLACE "K3" KLINGONS, & 1670 REM "B3" STARBASES, & "S3" STARS ELSEWHERE. 1680 A$="<*>":Z1=S1:Z2=S2:GOSUB8670:IFK3<1THEN1820 1720 FORI=1TOK3:GOSUB8590:A$="+K+":Z1=R1:Z2=R2 1780 GOSUB8670:K(I,1)=R1:K(I,2)=R2:K(I,3)=S9*(0.5+RND(1)):NEXTI 1820 IFB3<1THEN1910 1880 GOSUB8590:A$=">!<":Z1=R1:B4=R1:Z2=R2:B5=R2:GOSUB8670 1910 FORI=1TOS3:GOSUB8590:A$=" * ":Z1=R1:Z2=R2:GOSUB8670:NEXTI 1980 GOSUB6430 1990 IFS+E>10THENIFE>10ORD(7)=0THEN2060 2020 PRINT:PRINT"** FATAL ERROR ** YOU'VE JUST STRANDED YOUR SHIP IN + " 2030 PRINT"SPACE":PRINT"YOU HAVE INSUFFICIENT MANEUVERING ENERGY,"; 2040 PRINT" AND SHIELD CONTROL":PRINT"IS PRESENTLY INCAPABLE OF CROSS" +; 2050 PRINT"-CIRCUITING TO ENGINE ROOM!!":GOTO6220 2060 INPUT"COMMAND";A$ 2080 FORI=1TO10:IFLEFT$(A$,3)<>MID$(A1$,3*I-2,3)THEN2160 2140 ONIGOTO 2300,1980,4000,4260,4700,5530,5690,7290,6270,9999 2160 NEXTI:PRINT"ENTER ONE OF THE FOLLOWING:" 2180 PRINT" NAV (TO SET COURSE)" 2190 PRINT" SRS (FOR SHORT RANGE SENSOR SCAN)" 2200 PRINT" LRS (FOR LONG RANGE SENSOR SCAN)" 2210 PRINT" PHA (TO FIRE PHASERS)" 2220 PRINT" TOR (TO FIRE PHOTON TORPEDOES)" 2230 PRINT" SHE (TO RAISE OR LOWER SHIELDS)" 2240 PRINT" DAM (FOR DAMAGE CONTROL REPORTS)" 2250 PRINT" COM (TO CALL ON LIBRARY-COMPUTER)" 2260 PRINT" XXX (TO RESIGN YOUR COMMAND)":PRINT:GOTO 1990 2290 REM COURSE CONTROL BEGINS HERE 2300 INPUT"COURSE (0-9)";C1:IFC1=9THENC1=1 2310 IFC1>=1ANDC1<9THEN2350 2330 PRINT" LT. SULU REPORTS, 'INCORRECT COURSE DATA, SIR!'":GOTO199 +0 2350 X$="8":IFD(1)<0THENX$="0.2" 2360 PRINT"WARP FACTOR (0-";X$;")";:INPUTW1:IFD(1)<0ANDW1>.2THEN2470 2380 IFW1>0ANDW1<=8THEN2490 2390 IFW1=0THEN1990 2420 PRINT" CHIEF ENGINEER SCOTT REPORTS 'THE ENGINES WON'T TAKE"; 2430 PRINT" WARP ";W1;"!'":GOTO1990 2470 PRINT"WARP ENGINES ARE DAMAGED. MAXIUM SPEED = WARP 0.2":GOTO199 +0 2490 N=INT(W1*8+.5):IFE-N>=0THEN2590 2500 PRINT"ENGINEERING REPORTS 'INSUFFICIENT ENERGY AVAILABLE" 2510 PRINT" FOR MANEUVERING AT WARP";W1;"!'" 2530 IFS<N-EORD(7)<0THEN1990 2550 PRINT"DEFLECTOR CONTROL ROOM ACKNOWLEDGES";S;"UNITS OF ENERGY" 2560 PRINT" PRESENTLY DEPLOYED TO SHIELDS." 2570 GOTO1990 2580 REM KLINGONS MOVE/FIRE ON MOVING STARSHIP . . . 2590 FORI=1TOK3:IFK(I,3)=0THEN2700 2610 A$=" ":Z1=K(I,1):Z2=K(I,2):GOSUB8670:GOSUB8590 2660 K(I,1)=Z1:K(I,2)=Z2:A$="+K+":GOSUB8670 2700 NEXTI:GOSUB6000:D1=0:D6=W1:IFW1>=1THEND6=1 2770 FORI=1TO8:IFD(I)>=0THEN2880 2790 D(I)=D(I)+D6:IFD(I)>-.1ANDD(I)<0THEND(I)=-.1:GOTO2880 2800 IFD(I)<0THEN2880 2810 IFD1<>1THEND1=1:PRINT"DAMAGE CONTROL REPORT: "; 2840 PRINTTAB(8);:R1=I:GOSUB8790:PRINTG2$;" REPAIR COMPLETED." 2880 NEXTI:IFRND(1)>.2THEN3070 2910 R1=FNR(1):IFRND(1)>=.6THEN3000 2930 D(R1)=D(R1)-(RND(1)*5+1):PRINT"DAMAGE CONTROL REPORT: "; 2960 GOSUB8790:PRINTG2$;" DAMAGED":PRINT:GOTO3070 3000 D(R1)=D(R1)+RND(1)*3+1:PRINT"DAMAGE CONTROL REPORT: "; 3030 GOSUB8790:PRINTG2$;" STATE OF REPAIR IMPROVED":PRINT 3060 REM BEGIN MOVING STARSHIP 3070 A$=" ":Z1=INT(S1):Z2=INT(S2):GOSUB8670 3110 X1=C(C1,1)+(C(C1+1,1)-C(C1,1))*(C1-INT(C1)):X=S1:Y=S2 3140 X2=C(C1,2)+(C(C1+1,2)-C(C1,2))*(C1-INT(C1)):Q4=Q1:Q5=Q2 3170 FORI=1TON:S1=S1+X1:S2=S2+X2:IFS1<1ORS1>=9ORS2<1ORS2>=9THEN3500 3240 S8=INT(S1)*24+INT(S2)*3-26:IFMID$(Q$,S8,2)=" "THEN3360 3320 S1=INT(S1-X1):S2=INT(S2-X2):PRINT"WARP ENGINES SHUT DOWN AT "; 3350 PRINT"SECTOR";S1;",";S2;"DUE TO BAD NAVAGATION":GOTO3370 3360 NEXTI:S1=INT(S1):S2=INT(S2) 3370 A$="<*>":Z1=INT(S1):Z2=INT(S2):GOSUB8670:GOSUB3910:T8=1 3430 IFW1<1THENT8=.1*INT(10*W1) 3450 T=T+T8:IFT>T0+T9THEN6220 3470 REM SEE IF DOCKED, THEN GET COMMAND 3480 GOTO1980 3490 REM EXCEEDED QUADRANT LIMITS 3500 X=8*Q1+X+N*X1:Y=8*Q2+Y+N*X2:Q1=INT(X/8):Q2=INT(Y/8):S1=INT(X-Q1*8 +) 3550 S2=INT(Y-Q2*8):IFS1=0THENQ1=Q1-1:S1=8 3590 IFS2=0THENQ2=Q2-1:S2=8 3620 X5=0:IFQ1<1THENX5=1:Q1=1:S1=1 3670 IFQ1>8THENX5=1:Q1=8:S1=8 3710 IFQ2<1THENX5=1:Q2=1:S2=1 3750 IFQ2>8THENX5=1:Q2=8:S2=8 3790 IFX5=0THEN3860 3800 PRINT"LT. UHURA REPORTS MESSAGE FROM STARFLEET COMMAND:" 3810 PRINT" 'PERMISSION TO ATTEMPT CROSSING OF GALACTIC PERIMETER" 3820 PRINT" IS HEREBY *DENIED*. SHUT DOWN YOUR ENGINES.'" 3830 PRINT"CHIEF ENGINEER SCOTT REPORTS 'WARP ENGINES SHUT DOWN" 3840 PRINT" AT SECTOR";S1;",";S2;"OF QUADRANT";Q1;",";Q2;".'" 3850 IFT>T0+T9THEN6220 3860 IF8*Q1+Q2=8*Q4+Q5THEN3370 3870 T=T+1:GOSUB3910:GOTO1320 3900 REM MANEUVER ENERGY S/R ** 3910 E=E-N-10:IFE>=0THENRETURN 3930 PRINT"SHIELD CONTROL SUPPLIES ENERGY TO COMPLETE THE MANEUVER." 3940 S=S+E:E=0:IFS<=0THENS=0 3980 RETURN 3990 REM LONG RANGE SENSOR SCAN CODE 4000 IFD(3)<0THENPRINT"LONG RANGE SENSORS ARE INOPERABLE":GOTO1990 4030 PRINT"LONG RANGE SCAN FOR QUADRANT";Q1;",";Q2 4040 O1$="-------------------":PRINTO1$ 4060 FOR I=Q1-1 TO Q1+1:N(1)=-1:N(2)=-2:N(3)=-3:FOR J=Q2-1 TO Q2+1 4120 IF I>0 AND I<9 AND J>0 AND J<9 THEN N(J-Q2+2)=G(I,J):Z(I,J)=G(I,J +) 4180 NEXT J:FOR L=1TO3:PRINT": ";:IF N(L)<0 THEN PRINT"*** ";:GOTO 423 +0 4210 PRINT RIGHT$(STR$(N(L)+1000),3);" "; 4230 NEXT L:PRINT":":PRINT O1$:NEXT I:GOTO 1990 4250 REM PHASER CONTROL CODE BEGINS HERE 4260 IFD(4)<0THENPRINT"PHASERS INOPERATIVE":GOTO1990 4265 IFK3>0THEN4330 4270 PRINT"SCIENCE OFFICER SPOCK REPORTS 'SENSORS SHOW NO ENEMY SHIPS +" 4280 PRINT" IN THIS QUADRANT'":GOTO1990 4330 IFD(8)<0THENPRINT"COMPUTER FAILURE HAMPERS ACCURACY" 4350 PRINT"PHASERS LOCKED ON TARGET; "; 4360 PRINT"ENERGY AVAILABLE =";E;"UNITS" 4370 INPUT"NUMBER OF UNITS TO FIRE";X:IFX<=0THEN1990 4400 IFE-X<0THEN4360 4410 E=E-X:IFD(7)<0THENX=X*RND(1) 4450 H1=INT(X/K3):FORI=1TO3:IFK(I,3)<=0THEN4670 4480 H=INT((H1/FND(0))*(RND(1)+2)):IFH>.15*K(I,3)THEN4530 4500 PRINT"SENSORS SHOW NO DAMAGE TO ENEMY AT ";K(I,1);",";K(I,2):GOTO +4670 4530 K(I,3)=K(I,3)-H:PRINTH;"UNIT HIT ON KLINGON AT SECTOR";K(I,1);"," +; 4550 PRINTK(I,2):IFK(I,3)<=0THENPRINT"*** KLINGON DESTROYED ***":GOTO4 +580 4560 PRINT" (SENSORS SHOW";K(I,3);"UNITS REMAINING)":GOTO4670 4580 K3=K3-1:K9=K9-1:Z1=K(I,1):Z2=K(I,2):A$=" ":GOSUB8670 4650 K(I,3)=0:G(Q1,Q2)=G(Q1,Q2)-100:Z(Q1,Q2)=G(Q1,Q2):IFK9<=0THEN6370 4670 NEXTI:GOSUB6000:GOTO1990 4690 REM PHOTON TORPEDO CODE BEGINS HERE 4700 IFP<=0THENPRINT"ALL PHOTON TORPEDOES EXPENDED":GOTO 1990 4730 IFD(5)<0THENPRINT"PHOTON TUBES ARE NOT OPERATIONAL":GOTO1990 4760 INPUT"PHOTON TORPEDO COURSE (1-9)";C1:IFC1=9THENC1=1 4780 IFC1>=1ANDC1<9THEN4850 4790 PRINT"ENSIGN CHEKOV REPORTS, 'INCORRECT COURSE DATA, SIR!'" 4800 GOTO1990 4850 X1=C(C1,1)+(C(C1+1,1)-C(C1,1))*(C1-INT(C1)):E=E-2:P=P-1 4860 X2=C(C1,2)+(C(C1+1,2)-C(C1,2))*(C1-INT(C1)):X=S1:Y=S2 4910 PRINT"TORPEDO TRACK:" 4920 X=X+X1:Y=Y+X2:X3=INT(X+.5):Y3=INT(Y+.5) 4960 IFX3<1ORX3>8ORY3<1ORY3>8THEN5490 5000 PRINT" ";X3;",";Y3:A$=" ":Z1=X:Z2=Y:GOSUB8830 5050 IFZ3<>0THEN4920 5060 A$="+K+":Z1=X:Z2=Y:GOSUB8830:IFZ3=0THEN5210 5110 PRINT"*** KLINGON DESTROYED ***":K3=K3-1:K9=K9-1:IFK9<=0THEN6370 5150 FORI=1TO3:IFX3=K(I,1)ANDY3=K(I,2)THEN5190 5180 NEXTI:I=3 5190 K(I,3)=0:GOTO5430 5210 A$=" * ":Z1=X:Z2=Y:GOSUB8830:IFZ3=0THEN5280 5260 PRINT"STAR AT";X3;",";Y3;"ABSORBED TORPEDO ENERGY.":GOSUB6000:GOT +O1990 5280 A$=">!<":Z1=X:Z2=Y:GOSUB8830:IFZ3=0THEN4760 5330 PRINT"*** STARBASE DESTROYED ***":B3=B3-1:B9=B9-1 5360 IFB9>0ORK9>T-T0-T9THEN5400 5370 PRINT"THAT DOES IT, CAPTAIN!! YOU ARE HEREBY RELIEVED OF COMMAND +" 5380 PRINT"AND SENTENCED TO 99 STARDATES AT HARD LABOR ON CYGNUS 12!!" 5390 GOTO 6270 5400 PRINT"STARFLEET COMMAND REVIEWING YOUR RECORD TO CONSIDER" 5410 PRINT"COURT MARTIAL!":D0=0 5430 Z1=X:Z2=Y:A$=" ":GOSUB8670 5470 G(Q1,Q2)=K3*100+B3*10+S3:Z(Q1,Q2)=G(Q1,Q2):GOSUB6000:GOTO1990 5490 PRINT"TORPEDO MISSED":GOSUB6000:GOTO1990 5520 REM SHIELD CONTROL 5530 IFD(7)<0THENPRINT"SHIELD CONTROL INOPERABLE":GOTO1990 5560 PRINT"ENERGY AVAILABLE =";E+S;:INPUT"NUMBER OF UNITS TO SHIELDS"; +X 5580 IFX<0ORS=XTHENPRINT"<SHIELDS UNCHANGED>":GOTO1990 5590 IFX<=E+STHEN5630 5600 PRINT"SHIELD CONTROL REPORTS 'THIS IS NOT THE FEDERATION TREASUR +Y.'" 5610 PRINT"<SHIELDS UNCHANGED>":GOTO1990 5630 E=E+S-X:S=X:PRINT"DEFLECTOR CONTROL ROOM REPORT:" 5660 PRINT" 'SHIELDS NOW AT";INT(S);"UNITS PER YOUR COMMAND.'":GOTO19 +90 5680 REM DAMAGE CONTROL 5690 IFD(6)>=0THEN5910 5700 PRINT"DAMAGE CONTROL REPORT NOT AVAILABLE":IFD0=0THEN1990 5720 D3=0:FORI=1TO8:IFD(I)<0THEND3=D3+.1 5760 NEXTI:IFD3=0THEN1990 5780 PRINT:D3=D3+D4:IFD3>=1THEND3=.9 5810 PRINT"TECHNICIANS STANDING BY TO EFFECT REPAIRS TO YOUR SHIP;" 5820 PRINT"ESTIMATED TIME TO REPAIR:";.01*INT(100*D3);"STARDATES" 5840 INPUT "WILL YOU AUTHORIZE THE REPAIR ORDER (Y/N)";A$ 5860 IFA$<>"Y"THEN 1990 5870 FORI=1TO8:IFD(I)<0THEND(I)=0 5890 NEXTI:T=T+D3+.1 5910 PRINT:PRINT"DEVICE STATE OF REPAIR":FORR1=1TO8 5920 GOSUB8790:PRINTG2$;LEFT$(Z$,25-LEN(G2$));INT(D(R1)*100)*.01 5950 NEXTR1:PRINT:IFD0<>0THEN5720 5980 GOTO 1990 5990 REM KLINGONS SHOOTING 6000 IFK3<=0THENRETURN 6010 IFD0<>0THENPRINT"STARBASE SHIELDS PROTECT THE ENTERPRISE":RETURN 6040 FORI=1TO3:IFK(I,3)<=0THEN6200 6060 H=INT((K(I,3)/FND(1))*(2+RND(1))):S=S-H:K(I,3)=K(I,3)/(3+RND(0)) 6080 PRINTH;"UNIT HIT ON ENTERPRISE FROM SECTOR";K(I,1);",";K(I,2) 6090 IFS<=0THEN6240 6100 PRINT" <SHIELDS DOWN TO";S;"UNITS>":IFH<20THEN6200 6120 IFRND(1)>.6ORH/S<=.02THEN6200 6140 R1=FNR(1):D(R1)=D(R1)-H/S-.5*RND(1):GOSUB8790 6170 PRINT"DAMAGE CONTROL REPORTS ";G2$;" DAMAGED BY THE HIT'" 6200 NEXTI:RETURN 6210 REM END OF GAME 6220 PRINT"IT IS STARDATE";T:GOTO 6270 6240 PRINT:PRINT"THE ENTERPRISE HAS BEEN DESTROYED. THEN FEDERATION " +; 6250 PRINT"WILL BE CONQUERED":GOTO 6220 6270 PRINT"THERE WERE";K9;"KLINGON BATTLE CRUISERS LEFT AT" 6280 PRINT"THE END OF YOUR MISSION." 6290 PRINT:PRINT:IFB9=0THEN6360 6310 PRINT"THE FEDERATION IS IN NEED OF A NEW STARSHIP COMMANDER" 6320 PRINT"FOR A SIMILAR MISSION -- IF THERE IS A VOLUNTEER," 6330 INPUT"LET HIM STEP FORWARD AND ENTER 'AYE'";A$:IFA$="AYE"THEN10 6360 END 6370 PRINT"CONGRULATION, CAPTAIN! THE LAST KLINGON BATTLE CRUISER" 6380 PRINT"MENACING THE FDERATION HAS BEEN DESTROYED.":PRINT 6400 PRINT"YOUR EFFICIENCY RATING IS";1000*(K7/(T-T0))^2:GOTO6290 6420 REM SHORT RANGE SENSOR SCAN & STARTUP SUBROUTINE 6430 FORI=S1-1TOS1+1:FORJ=S2-1TOS2+1 6450 IFINT(I+.5)<1ORINT(I+.5)>8ORINT(J+.5)<1ORINT(J+.5)>8THEN6540 6490 A$=">!<":Z1=I:Z2=J:GOSUB8830:IFZ3=1THEN6580 6540 NEXTJ:NEXTI:D0=0:GOTO6650 6580 D0=1:C$="DOCKED":E=E0:P=P0 6620 PRINT"SHIELDS DROPPED FOR DOCKING PURPOSES":S=0:GOTO6720 6650 IFK3>0THENC$="*RED*":GOTO6720 6660 C$="GREEN":IFE<E0*.1THENC$="YELLOW" 6720 IFD(2)>=0THEN6770 6730 PRINT:PRINT"*** SHORT RANGE SENSORS ARE OUT ***":PRINT:RETURN 6770 O1$="---------------------------------":PRINTO1$:FORI=1TO8 6820 FORJ=(I-1)*24+1TO(I-1)*24+22STEP3:PRINT" ";MID$(Q$,J,3);:NEXTJ 6830 ONIGOTO6850,6900,6960,7020,7070,7120,7180,7240 6850 PRINT" STARDATE ";INT(T*10)*.1:GOTO7260 6900 PRINT" CONDITION ";C$:GOTO7260 6960 PRINT" QUADRANT ";Q1;",";Q2:GOTO7260 7020 PRINT" SECTOR ";S1;",";S2:GOTO7260 7070 PRINT" PHOTON TORPEDOES ";INT(P):GOTO7260 7120 PRINT" TOTAL ENERGY ";INT(E+S):GOTO7260 7180 PRINT" SHIELDS ";INT(S):GOTO7260 7240 PRINT" KLINGONS REMAINING";INT(K9) 7260 NEXTI:PRINTO1$:RETURN 7280 REM LIBRARY COMPUTER CODE 7290 IFD(8)<0THENPRINT"COMPUTER DISABLED":GOTO1990 7320 INPUT"COMPUTER ACTIVE AND AWAITING COMMAND";A:IFA<0THEN1990 7350 PRINT:H8=1:ONA+1GOTO7540,7900,8070,8500,8150,7400 7360 PRINT"FUNCTIONS AVAILABLE FROM LIBRARY-COMPUTER:" 7370 PRINT" 0 = CUMULATIVE GALACTIC RECORD" 7372 PRINT" 1 = STATUS REPORT" 7374 PRINT" 2 = PHOTON TORPEDO DATA" 7376 PRINT" 3 = STARBASE NAV DATA" 7378 PRINT" 4 = DIRECTION/DISTANCE CALCULATOR" 7380 PRINT" 5 = GALAXY 'REGION NAME' MAP":PRINT:GOTO7320 7390 REM SETUP TO CHANGE CUM GAL RECORD TO GALAXY MAP 7400 H8=0:G5=1:PRINT" THE GALAXY":GOTO7550 7530 REM CUM GALACTIC RECORD 7540 REM INPUT"DO YOU WANT A HARDCOPY? IS THE TTY ON (Y/N)";A$ 7542 REM IFA$="Y"THENPOKE1229,2:POKE1237,3:NULL1 7543 PRINT:PRINT" "; 7544 PRINT"COMPUTER RECORD OF GALAXY FOR QUADRANT";Q1;",";Q2 7546 PRINT 7550 PRINT" 1 2 3 4 5 6 7 8" 7560 O1$=" ----- ----- ----- ----- ----- ----- ----- -----" 7570 PRINTO1$:FORI=1TO8:PRINTI;:IFH8=0THEN7740 7630 FORJ=1TO8:PRINT" ";:IFZ(I,J)=0THENPRINT"***";:GOTO7720 7700 PRINTRIGHT$(STR$(Z(I,J)+1000),3); 7720 NEXTJ:GOTO7850 7740 Z4=I:Z5=1:GOSUB9030:J0=INT(15-.5*LEN(G2$)):PRINTTAB(J0);G2$; 7800 Z5=5:GOSUB 9030:J0=INT(39-.5*LEN(G2$)):PRINTTAB(J0);G2$; 7850 PRINT:PRINTO1$:NEXTI:PRINT:GOTO1990 7890 REM STATUS REPORT 7900 PRINT " STATUS REPORT:":X$="":IFK9>1THENX$="S" 7940 PRINT"KLINGON";X$;" LEFT: ";K9 7960 PRINT"MISSION MUST BE COMPLETED IN";.1*INT((T0+T9-T)*10);"STARDAT +ES" 7970 X$="S":IFB9<2THENX$="":IFB9<1THEN8010 7980 PRINT"THE FEDERATION IS MAINTAINING";B9;"STARBASE";X$;" IN THE GA +LAXY" 7990 GOTO5690 8010 PRINT"YOUR STUPIDITY HAS LEFT YOU ON YOUR ON IN" 8020 PRINT" THE GALAXY -- YOU HAVE NO STARBASES LEFT!":GOTO5690 8060 REM TORPEDO, BASE NAV, D/D CALCULATOR 8070 IFK3<=0THEN4270 8080 X$="":IFK3>1THENX$="S" 8090 PRINT"FROM ENTERPRISE TO KLINGON BATTLE CRUSER";X$ 8100 H8=0:FORI=1TO3:IFK(I,3)<=0THEN8480 8110 W1=K(I,1):X=K(I,2) 8120 C1=S1:A=S2:GOTO8220 8150 PRINT"DIRECTION/DISTANCE CALCULATOR:" 8160 PRINT"YOU ARE AT QUADRANT ";Q1;",";Q2;" SECTOR ";S1;",";S2 8170 PRINT"PLEASE ENTER":INPUT" INITIAL COORDINATES (X,Y)";C1,A 8200 INPUT" FINAL COORDINATES (X,Y)";W1,X 8220 X=X-A:A=C1-W1:IFX<0THEN8350 8250 IFA<0THEN8410 8260 IFX>0THEN8280 8270 IFA=0THENC1=5:GOTO8290 8280 C1=1 8290 IFABS(A)<=ABS(X)THEN8330 8310 PRINT"DIRECTION =";C1+(((ABS(A)-ABS(X))+ABS(A))/ABS(A)):GOTO8460 8330 PRINT"DIRECTION =";C1+(ABS(A)/ABS(X)):GOTO8460 8350 IFA>0THENC1=3:GOTO8420 8360 IFX<>0THENC1=5:GOTO8290 8410 C1=7 8420 IFABS(A)>=ABS(X)THEN8450 8430 PRINT"DIRECTION =";C1+(((ABS(X)-ABS(A))+ABS(X))/ABS(X)):GOTO8460 8450 PRINT"DIRECTION =";C1+(ABS(X)/ABS(A)) 8460 PRINT"DISTANCE =";SQR(X^2+A^2):IFH8=1THEN1990 8480 NEXTI:GOTO1990 8500 IFB3<>0THENPRINT"FROM ENTERPRISE TO STARBASE:":W1=B4:X=B5:GOTO812 +0 8510 PRINT"MR. SPOCK REPORTS, 'SENSORS SHOW NO STARBASES IN THIS"; 8520 PRINT" QUADRANT.'":GOTO1990 8580 REM FIND EMPTY PLACE IN QUADRANT (FOR THINGS) 8590 R1=FNR(1):R2=FNR(1):A$=" ":Z1=R1:Z2=R2:GOSUB8830:IFZ3=0THEN8590 8600 RETURN 8660 REM INSERT IN STRING ARRAY FOR QUADRANT 8670 S8=INT(Z2-.5)*3+INT(Z1-.5)*24+1 8675 IF LEN(A$)<>3THEN PRINT"ERROR":STOP 8680 IFS8=1THENQ$=A$+RIGHT$(Q$,189):RETURN 8690 IFS8=190THENQ$=LEFT$(Q$,189)+A$:RETURN 8700 Q$=LEFT$(Q$,S8-1)+A$+RIGHT$(Q$,190-S8):RETURN 8780 REM PRINTS DEVICE NAME 8790 ONR1GOTO8792,8794,8796,8798,8800,8802,8804,8806 8792 G2$="WARP ENGINES":RETURN 8794 G2$="SHORT RANGE SENSORS":RETURN 8796 G2$="LONG RANGE SENSORS":RETURN 8798 G2$="PHASER CONTROL":RETURN 8800 G2$="PHOTON TUBES":RETURN 8802 G2$="DAMAGE CONTROL":RETURN 8804 G2$="SHIELD CONTROL":RETURN 8806 G2$="LIBRARY-COMPUTER":RETURN 8820 REM STRING COMPARISON IN QUADRANT ARRAY 8830 Z1=INT(Z1+.5):Z2=INT(Z2+.5):S8=(Z2-1)*3+(Z1-1)*24+1:Z3=0 8890 IFMID$(Q$,S8,3)<>A$THENRETURN 8900 Z3=1:RETURN 9010 REM QUADRANT NAME IN G2$ FROM Z4,Z5 (=Q1,Q2) 9020 REM CALL WITH G5=1 TO GET REGION NAME ONLY 9030 IFZ5<=4THENONZ4GOTO9040,9050,9060,9070,9080,9090,9100,9110 9035 GOTO9120 9040 G2$="ANTARES":GOTO9210 9050 G2$="RIGEL":GOTO9210 9060 G2$="PROCYON":GOTO9210 9070 G2$="VEGA":GOTO9210 9080 G2$="CANOPUS":GOTO9210 9090 G2$="ALTAIR":GOTO9210 9100 G2$="SAGITTARIUS":GOTO9210 9110 G2$="POLLUX":GOTO9210 9120 ONZ4GOTO9130,9140,9150,9160,9170,9180,9190,9200 9130 G2$="SIRIUS":GOTO9210 9140 G2$="DENEB":GOTO9210 9150 G2$="CAPELLA":GOTO9210 9160 G2$="BETELGEUSE":GOTO9210 9170 G2$="ALDEBARAN":GOTO9210 9180 G2$="REGULUS":GOTO9210 9190 G2$="ARCTURUS":GOTO9210 9200 G2$="SPICA" 9210 IFG5<>1THENONZ5GOTO9230,9240,9250,9260,9230,9240,9250,9260 9220 RETURN 9230 G2$=G2$+" I":RETURN 9240 G2$=G2$+" II":RETURN 9250 G2$=G2$+" III":RETURN 9260 G2$=G2$+" IV":RETURN 9999 GOTO2160

Update: corrected case of suggested file name (thanks cavac).

Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond

Replies are listed 'Best First'.
Re^2: A BASIC interpreter to run StarTrek
by LanX (Sage) on Aug 11, 2021 at 18:14 UTC
    > FORI=1TO8:D(I)=0:NEXTI

    I remember the book that's from, one of the early bestsellers in computer literature:)

    But was the lack of whitespace between constructs and variables really originally so?

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery

      BASIC was widely adopted in mini-computers and micro-computers with very limited memory so most implementations allowed white space to be expunged. The original Dartmouth BASIC doesn't mention the option of omitting spaces so that probably wasn't a thing.

      Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond
        OK, good point.

        FWIW: When I started programming almost all available BASIC dialects (Apple, Commodore, Atari, ...) where based on MS BASIC which tokenized all keywords before storing or running. Whitespace was added automatically when listing.

        EDIT

        see https://www.c64-wiki.com/wiki/BASIC_token for more

        Cheers Rolf
        (addicted to the Perl Programming Language :)
        Wikisyntax for the Monastery

        update

        ) IOW these kind of tricks where not only unnecessary but also impossible, because the source was automatically "linted" with whitespace when listed.

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