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25 lines
704 B
Plaintext
25 lines
704 B
Plaintext
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10 HOME:VTAB21:HTAB16:?"SCRIBBLE"
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14 M=200
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15 HGR:DIM OX(M),OY(M):I=0:J=1-M
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20 OX(I)=140:OY(I)=80:X=OX(I):Y=OY(I):SX=0:SY=0
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30 C=1+3*RND(1):IF RND(1)<0.5 THEN C=C+4
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31 HCOLOR=C
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33 HPLOT OX(I),OY(I) TO X,Y
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35 SX=SX+1-2*RND(1):SY=SY+1-2*RND(1)
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36 IF SX < 0 AND X<70 THEN SX=SX*X/50
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37 IF SX > 0 AND X>210 THEN SX=SX*(279-X)/50
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38 IF SY < 0 AND Y<40 THEN SY=SY*Y/30
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39 IF SY > 0 AND Y>120 THEN SY=SY*(159-Y)/30
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41 J=J+1:IF J>M THEN J=0
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42 I=I+1:IF I>M THEN I=0
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43 IF J<0 THEN 45
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44 HCOLOR=0:HPLOT OX(I),OY(I) TO OX(J),OY(J):HCOLOR=3
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45 OX(I)=X:OY(I)=Y
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46 X=X+SX:Y=Y+SY
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50 IF X>=0 THEN 70
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60 X=0:GOTO 80
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70 IF X>=280 THEN X=279
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80 IF Y>=0 THEN 100
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90 IF Y>=160 THEN Y=159
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100 GOTO 30
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