AdventOfCode2023/UCommon.pas

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{
Solutions to the Advent Of Code.
Copyright (C) 2023-2024 Stefan Müller
This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
}
unit UCommon;
{$mode ObjFPC}{$H+}
interface
uses
Classes, SysUtils, Generics.Collections;
type
PPoint = ^TPoint;
const
CNoDirection: TPoint = (X: 0; Y: 0);
CDirectionRight: TPoint = (X: 1; Y: 0);
CDirectionDown: TPoint = (X: 0; Y: 1);
CDirectionLeft: TPoint = (X: -1; Y: 0);
CDirectionUp: TPoint = (X: 0; Y: -1);
CDirectionRightDown: TPoint = (X: 1; Y: 1);
CDirectionRightUp: TPoint = (X: 1; Y: -1);
CDirectionLeftDown: TPoint = (X: -1; Y: 1);
CDirectionLeftUp: TPoint = (X: -1; Y: -1);
CPCardinalDirections: array[0..3] of PPoint = (@CDirectionRight, @CDirectionDown, @CDirectionLeft, @CDirectionUp);
type
TIntegerList = specialize TList<Integer>;
implementation
end.