raycaster/umap.pas at master · boriswinner/raycaster · GitHub

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unit umap;

{$mode objfpc}{$H+} {$MODESWITCH ADVANCEDRECORDS}

interface

uses
  Classes, SysUtils;

type
  IntGrid = array of array of integer;

TMap = record
  private
    const MapFileName = 'map.txt';
  public
    Map: IntGrid;
    function ReadFromFile: IntGrid;
end;

var
  GameMap: TMap;

implementation

function TMap.ReadFromFile: IntGrid;
var
  fin: text;
  j: integer;
  s: string;
begin
  assign(fin,MapFileName);
  reset(fin);
  while (not eof(fin)) do
  begin
    setlength(Result,length(Result)+1);
    readln(fin,s);
    setlength(Result[high(Result)],length(s));
    for j := low(s) to high(s) do
      Result[high(Result),j-1] := StrToIntDef(s[j],0);
  end;
  close(fin);
end;

initialization

GameMap.Map := GameMap.ReadFromFile;

end.