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Amiga Collections: New Zealand Amiga Users Group
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New Zealand Amiga Users Group Newsdisk v03 (1987-02)(NZAmigaUG).zip
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New Zealand Amiga Users Group Newsdisk v03 (1987-02)(NZAmigaUG).adf
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BASIC
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RORv2
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1993-12-02
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3KB
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59 lines
10 ' ROR V2.01 mod'd by Garth Thornton
' ( from v1.01 (c) 1985 Kevin A. Bjorke)
CLEAR ,60000&
ON ERROR GOTO 1000
ON BREAK GOSUB 1000
20 DIM map!(64,64),tile%(13000),shd(32):r!=0!:min!=0!:max!=0!:coff%=0:flag%=0:esc$=CHR$(27)
rin%=1:gin%=1:blin%=1:coff%=RND*30:cog%=RND*90:cob%=RND*61
30 DEF FNkr!(x!,y!)=x!/y!+r!*(RND-.5):DEF FNcolr!(p!)=INT((p!-min!)/range!)
FOR i=0 TO 31 STEP 2:shd(i)=i/32:shd(i+1)=shd(i):NEXT
40 SCREEN 1,320,200,5,1:WINDOW 2,,,,1:CLS:PRINT "ROR V 2.01"
PRINT "Press escape to restart, 0 to EXIT":RANDOMIZE TIMER
50 PRINT :PRINT "Hold on for a minute ...":GOSUB 140:GOSUB 250:CLS:GOSUB 300
60 a$=INKEY$:IF a$=esc$ THEN flag%=0:GOTO 50
IF a$="0" THEN GOTO 1000
70 GOSUB 520:GOTO 60
80 END
140 ' Build Topology
150 IF NOT (INKEY$="") GOTO 150
FOR c%=6 TO 1 STEP -1:st%=2^c%:bk%=st%\2:r!=8!*2!^(c%-5)
170 FOR a%=bk% TO 64 STEP st%:a1%=a%-bk%:a2%=a%+bk%
180 FOR b%=bk% TO 64 STEP st%:b1%=b%-bk%:b2%=b%+bk%
190 map!(a%,b2%)=FNkr((map!(a1%,b2%)+map!(a2%,b2%)),2!)
200 map!(a2%,b%)=FNkr((map!(a2%,b1%)+map!(a2%,b2%)),2!)
210 IF a%=bk% THEN map!(0,b%)=FNkr((map!(0,b1%)+map!(0,b2%)),2!)
220 IF b%=bk% THEN map!(a%,0)=FNkr((map!(a1%,0)+map!(a2%,0)),2!)
230 map!(a%,b%)=FNkr((map!(a1%,b1%)+map!(a2%,b1%)+map!(a1%,b2%)+map!(a2%,b2%)),4!)
240 NEXT b%,a%,c%:RETURN
250 ' Calculate color set
260 min!=0!:max!=0!:FOR a%=0 TO 64:FOR b%=0 TO 64
270 IF map!(a%,b%)>max! THEN max!=map!(a%,b%) ELSE IF map!(a%,b%)<min! THEN min!=map!(a%,b%)
280 NEXT b%
290 NEXT a%:range!=(max!-min!)/31!:RETURN
300 ' Draw map
310 COLOR 31:LINE(127,63)-(257,193),,b
320 FOR a%=0 TO 64:reg%=FNcolr!(map!(a%,a%)):GOSUB 460
330 x%=a%+128:xx%=256-a%:y%=a%+64:yy%=192-a%:LINE (x%,y%)-(xx%,yy%),,b
340 IF a%=64 THEN 400
350 FOR b%=a%+1 TO 64
360 reg%=FNcolr!(map!(a%,b%)):GOSUB 460:LINE (x%,b%+64)-(xx%,192-b%),,b
370 reg%=FNcolr!(map!(b%,a%)):GOSUB 460:LINE (b%+128,y%)-(256-b%,yy%),,b
390 NEXT b%
400 NEXT a%: GET (128,64)-(256,192),tile%:IF NOT flag% THEN GOSUB 430
410 RETURN
420 '
430 CLS:FOR a%=0 TO 256 STEP 128:FOR b%=0 TO 128 STEP 128
440 PUT (a%,b%),tile%:NEXT b%,a%:flag%=-1:RETURN
450 '
460 IF reg%>31 THEN reg%=31
470 COLOR reg%:RETURN
520 ' Cycle colors
FOR i%=0 TO 60:NEXT
coff%=coff%+rin%:IF coff%=0 OR coff%=31 THEN rin%=-rin%
cog%=cog%+gin%:IF cog%=92 THEN cog%=0
cob%=cob%+blin%:IF cob%=0 OR cob%=63 THEN blin%=-blin%
540 FOR reg%=0 TO 31:r=(reg%+coff%) AND 31:green=(reg%+cog%\3) AND 31:blue=(reg%+cob%\2) AND 31
550 PALETTE reg%,shd(r),shd(green),shd(blue):NEXT reg%:RETURN
1000 SCREEN CLOSE 1
1010 STOP