jsbasic/samples/simple.pong.txt
2020-06-20 15:36:17 -07:00

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0 REM
1 REM Newsgroups: comp.sys.apple2
2 REM From: mad.scientist.jr@gmail.com
3 REM Message-ID: <1193160910.224728.270640@z24g2000prh.googlegroups.com>
4 REM Subject: Re: woz' original "brick out" - source code , paddles
5 REM Date: Tue, 23 Oct 2007 17:35:10 -0000
6 REM
10 REM APPLE II SIMPLE PONG V4
20 REM PASTE INTO Joshua Bell s EMULATOR AT inexorabletash.github.io/jsbasic/
25 REM ++++++++++++++++++++++++++++++++++++++++
30 REM TITLE SCREEN + PROMPT FOR CONTROLS
35 REM ++++++++++++++++++++++++++++++++++++++++
40 TEXT : REM ENTER TEXT MODE
45 HOME : REM CLEAR TEXT SCREEN
49 PRINT "APPLE II SIMPLE PONG V4"
50 PRINT
51 PRINT "version 1 by aiiadict"
52 PRINT "tweaks by Mad Scientist Jr"
54 PRINT
55 PRINT "During game press Q to quit."
56 PRINT
58 INPUT "TYPE K FOR KEYS (A/Z, K/M) OR P FOR PADDLES OR Q TO QUIT? ";C$
60 IF C$ <> "K" AND C$ <> "P" AND C$ <> "Q" THEN GOTO 58
62 IF C$ = "Q" THEN GOTO 9000
65 REM
70 REM ++++++++++++++++++++++++++++++++++++++++
75 REM DRAW FIELD AND INITIALIZE GAME
80 REM ++++++++++++++++++++++++++++++++++++++++
85 GR: REM ENTER GRAPHIC MODE
90 COLOR= 7: VLIN 0,39 AT 0: VLIN 0,39 AT 39
95 HLIN 0,39 AT 0: HLIN 0,39 AT 39
100 bx = 10:by = 10:ox = 10:oy = 10: REM BALL START POSITION
102 dx = 1: dy = - 1: REM BALL DIRECTION
104 p1 = 10: o1 = 10: REM PLAYER 1 START POSITION
106 p2 = 10: o2 = 10: REM PLAYER 2 START POSITION
120 PL = 8: REM PADDLE LENGTH
130 REM
145 REM ++++++++++++++++++++++++++++++++++++++++
150 REM BEGIN MAIN GAME LOOP
155 REM ++++++++++++++++++++++++++++++++++++++++
196 REM ++++++++++++++++++++++++++++++++++++++++
197 REM DRAW PADDLE1
198 REM ++++++++++++++++++++++++++++++++++++++++
200 IF o1 <> p1 THEN COLOR= 0: VLIN o1,o1 + PL AT 3
210 COLOR= 7: VLIN p1,p1 + PL AT 3
296 REM ++++++++++++++++++++++++++++++++++++++++
297 REM DRAW PADDLE2
298 REM ++++++++++++++++++++++++++++++++++++++++
300 IF o2 <> p2 THEN COLOR= 0: VLIN o2,o2 + PL AT 36
310 COLOR= 7: VLIN p2,p2 + PL AT 36
399 REM ++++++++++++++++++++++++++++++++++++++++
400 REM DRAW AND MOVE BALL
401 REM ++++++++++++++++++++++++++++++++++++++++
402 IF ox <> bx OR oy <> by THEN COLOR= 0: PLOT ox,oy: PLOT ox,oy + 1
410 COLOR= 5: PLOT bx,by: PLOT bx,by + 1
416 ox = bx:oy = by
830 bx = bx + dx
835 IF SCRN( bx,by) > 0 THEN dx = - dx
840 by = by + dy
845 IF SCRN( bx,by) > 0 THEN dy = - dy
850 IF bx < 1 THEN bx = 1
860 IF bx > 38 THEN bx = 38
870 IF by < 1 THEN by = 1
880 IF by > 38 THEN by = 38
881 REM
882 REM ----------------------------------------
883 REM SAVE OLD SCREEN POSITION
884 REM ----------------------------------------
885 o1 = p1
886 o2 = p2
889 REM
900 REM ++++++++++++++++++++++++++++++++++++++++
901 REM GET PLAYER INPUT
902 REM ++++++++++++++++++++++++++++++++++++++++
903 IF PEEK ( - 16384) > 127 THEN GET K$: REM SEE IF KEY(S) PRESSED. NEEDS FIX FOR MULTI KEY SIMULTANEOUS INPUT
904 IF C$ <> "K" THEN GOTO 921
905 REM
906 REM ----------------------------------------
907 REM KEYBOARD INPUT
908 REM NOTE: NEEDS FIX TO DETECT MULTI KEYPRESSES
909 REM ----------------------------------------
912 IF K$ = "A" THEN p1 = p1 - 1
914 IF K$ = "Z" THEN p1 = p1 + 1
916 IF K$ = "K" THEN p2 = p2 - 1
918 IF K$ = "M" THEN p2 = p2 + 1
920 GOTO 955
921 IF C$ <> "P" THEN GOTO 947
922 REM
923 REM ----------------------------------------
925 REM PADDLE INPUT
927 REM ----------------------------------------
930 REM simple (non-absolute) paddle input:
931 REM if pdl(0) > 200 then p1 = p1 + 1
932 REM if pdl(0) < 55 then p1 = p1 - 1
933 REM if pdl(1) > 200 then p2 = p2 + 1
934 REM if pdl(1) < 55 then p2 = p2 - 1
943 REM realtime (absolute position) paddle input:
944 GOSUB 3000: REM PLAYER 1
945 GOSUB 4000: REM PLAYER 2
947 REM
948 REM ----------------------------------------
949 REM SEE IF PLAYER PRESSED Q TO QUIT
950 REM ----------------------------------------
951 IF K$ = "Q" THEN GOTO 9000
954 REM
955 REM ++++++++++++++++++++++++++++++++++++++++
956 REM MAKE SURE PADDLES DONT GO OFF SCREEN
958 REM ++++++++++++++++++++++++++++++++++++++++
960 IF p1 < 2 THEN p1 = 2
970 IF p1 > 28 THEN p1 = 28
980 IF p2 < 2 THEN p2 = 2
990 IF p2 > 28 THEN p2 = 28
1000 REM
1010 REM ++++++++++++++++++++++++++++++++++++++++
1020 REM CONTINUE GAME LOOP
1030 REM ++++++++++++++++++++++++++++++++++++++++
1040 GOTO 150
3000 REM
3010 REM ++++++++++++++++++++++++++++++++++++++++
3020 REM GET SCREEN POSITION FROM PADDLE 1 INPUT
3030 REM ++++++++++++++++++++++++++++++++++++++++
3040 p1 = 26 * pdl(0)
3050 p1 = p1 / 255
3060 p1 = p1 + 2
3070 RETURN
4000 REM
4010 REM ++++++++++++++++++++++++++++++++++++++++
4020 REM GET SCREEN POSITION FROM PADDLE 2 INPUT
4030 REM ++++++++++++++++++++++++++++++++++++++++
4040 p2 = 26 * pdl(1)
4050 p2 = p2 / 255
4060 p2 = p2 + 2
4070 RETURN
9000 REM
9010 REM ++++++++++++++++++++++++++++++++++++++++
9020 REM QUIT GAME
9030 REM ++++++++++++++++++++++++++++++++++++++++
9040 TEXT : REM HOME
9045 PRINT
9050 PRINT "FINISHED APPLE II SIMPLE PONG V4."
9060 END