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MISC.PAS
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Pascal/Delphi Source File
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1980-01-01
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2KB
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93 lines
unit Misc;
interface
uses Crt,Graph,Globals;
function Exist(FileName:string):boolean;
function Lowest (a,b:integer):integer;
function DeCode (Txt:string) :string;
procedure TextSize (mx,dx,my,dy:word);
function St(num:integer):str80;
procedure Sound (Frq : integer);
procedure Delay (Ms : integer);
procedure Black (x,y,x1,y1:word);
procedure FindFile (FilName :string);
implementation
function Exist(FileName:string):boolean;
var
fil:file;
begin
Assign (Fil,FileName); {$I-}
Reset (Fil); {$I+}
if IOresult<>0 then Exist := False
else begin
Close (Fil);
Exist:=(IOResult=0);
end;
end;
function Lowest (a,b:integer):integer;
begin
if a<b then Lowest:=a else Lowest:=b;
end;
function DeCode (Txt:string) : string;
var Ctr:byte;
begin
for Ctr:=1 to Length(Txt) do
Dec (Txt[Ctr], 128);
DeCode := Txt;
end;
procedure TextSize (mx,dx,my,dy:word);
begin
SetUserCharSize (mx,dx,my,dy);
SetTextStyle (SmallFont,HorizDir,UserCharSize);
end;
function St(num:integer):str80;
var strg:str80;
begin
Str(num,strg);
St:=strg;
end;
(*procedure Sound1 (Frq : integer);
begin
Sound (Frq);
end;*)
procedure Sound (Frq : integer);
begin
if Noise then Crt.Sound (Frq);
end;
(*procedure Delay1 (Ms : integer);
begin
Delay (Ms);
end;*)
procedure Delay (Ms : integer);
begin
Crt.Delay (Ms * ((Pause div 10)+1));
end;
procedure Black (x,y,x1,y1:word);
begin
SetViewPort (x,y,x1,y1,ClipOn);
ClearViewPort;
SetViewPort (0,0,319,199,ClipOn);
end;
procedure FindFile (FilName : string);
begin
if not Exist (FilName) then begin
TextMode (Co80);
Writeln ('SPACE ADVENTURE error :');
Writeln ('The file ',FilName,' is missing !');
Halt;
end;
end;
end.