16 lines
352 B
Text
16 lines
352 B
Text
10 SCREEN 7
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20 CLS
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30 W = 512: H = 212
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40 H = H \ 4
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50 Y1 = 0: Y2 = H - 1
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60 FOR I = 1 TO 4
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70 COL = 0
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80 Y = (Y - 1) * H
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90 FOR X = 0 TO (W - I - 1) STEP I
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100 LINE (X, Y1)-(X + I - 1, Y2), COL, BF
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110 COL = 15 - COL ' col alternate between 0 (black) and 15 (white)
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120 NEXT X
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130 Y1 = Y1 + H
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140 Y2 = Y2 + H
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150 NEXT I
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160 GOTO 160
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