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WORLDMAP.PAS
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Pascal/Delphi Source File
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1984-06-12
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1KB
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52 lines
program Worldmap;
{ This program draws a project of the world's continents on the hires }
{ screen very rapidly. The program uses the external procedure }
{ LINE.INV which must reside on the default disk in order to compile }
{ the program. The program also uses an external data file which }
{ holds the map coordinates: WORLDMAP.DAT. }
{ Jeff Firestone. June, 1984. }
Const
ArSize = 1280;
var
n,x,x1,y,y1,i,j : integer;
WorldArray : array [0..ArSize] of integer;
f : file;
procedure line(a,b,c,d,e:integer); external 'line.inv';
procedure ReadInfo;
begin
FillChar(WorldArray, SizeOf(WorldArray), 0);
assign(f, 'worldmap.dat');
reset(f);
BlockRead(f, WorldArray, round((ArSize/128)*2));
close(f);
end;
begin
ReadInfo;
i:= 0;
hires; hirescolor(7);
n:= WorldArray[i]; i:=i+1;
repeat
x1:= WorldArray[i]; i:=i+1;
y1:= WorldArray[i]; i:=i+1;
x := WorldArray[i]; i:=i+1;
y := WorldArray[i]; i:=i+1;
line (x1, y1, x, y, 1);
x1:= x; y1:= y;
for j:= 3 to n do
begin
x := WorldArray[i]; i:=i+1;
y := WorldArray[i]; i:=i+1;
line (x1, y1, x, y, 1);
x1:= x; y1:= y;
end;
n:= WorldArray[i]; i:=i+1;
until (n < 1);
end.