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37 lines
1.0 KiB
ObjectPascal
37 lines
1.0 KiB
ObjectPascal
uses
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crt,
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go32;
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const
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columns = 80;
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rows = 25;
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screensize = rows*columns*2;
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text = '! Hello world !';
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var
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textofs : Longint;
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save_screen : array[0..screensize-1] of byte;
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curx, cury : Integer;
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begin
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randomize;
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dosmemget($B800, 0, save_screen, screensize);
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curx := wherex; cury := wherey;
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gotoxy(1, 1); Write(text);
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textofs := screensize + length(text)*2;
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dosmemmove($B800, 0, $B800, textofs, length(text)*2);
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dosmemfillchar($B800, 0, screensize, #0);
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while (not keypressed) do begin
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dosmemfillchar($B800, textofs + random(length(text))*2 + 1,
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1, char(random(255)));
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dosmemmove($B800, textofs, $B800,
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random(columns)*2+random(rows)*columns*2,
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length(text)*2);
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delay(1);
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end;
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readkey;
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readkey;
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dosmemput($B800, 0, save_screen, screensize);
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gotoxy(curx, cury);
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end. |