DoomXS/p_local.pas at main · jval1972/DoomXS · GitHub

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//------------------------------------------------------------------------------
//
//  DoomXS - A basic Windows source port of Doom
//  based on original Linux Doom as published by "id Software"
//  Copyright (C) 1993-1996 by id Software, Inc.
//  Copyright (C) 2021-2022 by Jim Valavanis
//
//  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 2
//  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, write to the Free Software
//  Foundation, inc., 59 Temple Place - Suite 330, Boston, MA
//  02111-1307, USA.
//
//------------------------------------------------------------------------------
//  Site: https://sourceforge.net/projects/doomxs/
//------------------------------------------------------------------------------

unit p_local;

interface

uses
  d_delphi,
  m_fixed,
  p_mobj_h,
  r_defs;

const
  TOCENTER = -8;

  FLOATSPEED = FRACUNIT * 4;

  MAXHEALTH = 100;
  // Player VIEWHEIGHT
  PVIEWHEIGHT = 41 * FRACUNIT;

  // mapblocks are used to check movement
  // against lines and things
  MAPBLOCKUNITS = 128;
  MAPBLOCKSIZE = MAPBLOCKUNITS * FRACUNIT;

  MAPBLOCKSHIFT = FRACBITS + 7;
  MAPBMASK = MAPBLOCKSIZE - 1;
  MAPBTOFRAC = MAPBLOCKSHIFT - FRACBITS;

  // player radius for movement checking
  PLAYERRADIUS = 16 * FRACUNIT;

  // MAXRADIUS is for precalculated sector block boxes
  // the spider demon is larger,
  // but we do not have any moving sectors nearby
  MAXRADIUS = 32 * FRACUNIT;

  GRAVITY = FRACUNIT;
  MAXMOVE = 30 * FRACUNIT;

  USERANGEINT = 64;
  MELEERANGE = 64 * FRACUNIT;
  MISSILERANGE = (32 * 64) * FRACUNIT;

  // follow a player exlusively for 3 seconds
  BASETHRESHOLD = 100;

const
  ONFLOORZ = MININT;
  ONCEILINGZ = MAXINT;

const
  // Time interval for item respawning.
  ITEMQUESIZE = 128;

type
  divline_t = record
    x: fixed_t;
    y: fixed_t;
    dx: fixed_t;
    dy: fixed_t;
  end;
  Pdivline_t = ^divline_t;

  thingORline_t = record
    case integer of
    0: (thing: Pmobj_t);
    1: (line: Pline_t);
  end;

  intercept_t = record
    frac: fixed_t; // along trace line
    isaline: boolean;
    d: thingORline_t;
  end;
  Pintercept_t = ^intercept_t;

const
  MAXINTERCEPTS = 128;

type
  traverser_t = function(f: Pintercept_t): boolean;
  ltraverser_t = function(p: Pline_t): boolean;
  ttraverser_t = function(p: Pmobj_t): boolean;

const
  PT_ADDLINES = 1;
  PT_ADDTHINGS = 2;
  PT_EARLYOUT = 4;

implementation

end.