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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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0083_Sorta good WriteString.pas
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Pascal/Delphi Source File
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1995-02-28
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3KB
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76 lines
Procedure WriteS (DispStr : String; X,Y,Colr : Byte);
(* DispStr = String to display on screen
X,Y = Coordinates to being writing
Colr = Color attribute
*)
(* This is a simple procedure to directly write a string to the screen,
accounting for imbedded color codes. These color codes are identified
by a \ followed by a two or three digit number representing the color
desired. All subsequent output of the string will be given the new
color until otherwise declared. The string '\M' is also recognized as
a carriage return, where the string will be continued on the next line,
aligned with the above line. No values are returned.
It's fairly fast, and it does the job, but I know that it could use a
lot of tweaking, so if anybody does improve on it, please give me an
updated copy.
** NOTE ** The screen address is kept in the variable VidSeg. You can
either go through the procedure and replace it with a constant
screen address, or assign the variable VidSeg in your program.
*)
(* Standard disclaimer: I'm not liable for anything this procedure does
outside the original purpose of the procedure. If
something bad happens, let me know, but that's all
I can do.
*)
Var
Loc, TmpInt, OldX : Integer;
TmpStr : String[3];
Begin
OldX := X;
Loc := ((X-1)*2)+((Y-1)*160);
Loop := 1;
While Loop <= Length (DispStr) Do
Begin
TmpStr := '';
If (DispStr[Loop] = '\') And (DispStr[Loop+1] <> '\') Then
Begin
Inc (Loop);
If DispStr[Loop] In ['0'..'9'] Then
Begin
While (DispStr[Loop] In ['0'..'9']) And
(Length (TmpStr) < 3) Do
Begin
TmpStr := TmpStr + DispStr[Loop];
Inc (Loop);
End;
Val (TmpStr,Colr,TmpInt);
Colr := CheckColor (Colr);
End
Else
If UpCase (DispStr[Loop]) = 'M' Then
Begin
Inc (Y);
X := OldX;
Loc := ((X-1)*2)+((Y-1)*160);
End;
End
Else
Begin
If DispStr[Loop] = '\' Then
Delete (DispStr,Loop,1);
Mem[VidSeg:Loc] := Ord (DispStr[Loop]);
Mem[VidSeg:Loc+1] := Colr;
Inc (Loc,2);
Inc (Loop);
End;
End;
End;