20 lines
405 B
QBasic
20 lines
405 B
QBasic
4 REM POSTED TO TWITTER BY 8-BIT FRACTALS
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10 DIM S(30)
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20 HGR2:HCOLOR=7
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30 X=107:Y=142
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40 H=0:V=6
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50 S(0)=9:S(1)=1:SP=2
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60 GOSUB 80
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70 END
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80 SP=SP-2:N=S(SP):A=S(SP+1)
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90 IF N=0 THEN XX=X+H:YY=Y-V:HPLOT X,Y TO XX,YY:X=XX:Y=YY:RETURN
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100 S(SP)=N-1:S(SP+1)=-1
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110 S(SP+2)=A
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120 S(SP+3)=N-1:S(SP+4)=1
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130 SP=SP+5
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140 GOSUB 80:GOSUB 160:GOSUB 80
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150 RETURN
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160 SP=SP-1:A=S(SP)
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170 T=-A*H:H=A*V:V=T
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180 RETURN
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