psmap.ps

%% PostScript part of conqps - Map visualization for Conquer
%%
%% This file is part of Conquer.
%% Originally Copyright (C) 1989 by Martin Forssen (MaF)
%% Copyright (C) 2025 Juan Manuel Méndez Rey (Vejeta) - Licensed under GPL v3 with permission from original author
%%
%% Original author: Martin Forssen <d8forma@dtek.chalmers.se> (historical)
%% Permission granted by: Martin Forssen <maf@recordedfuture.com>
%%
%% 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 <https://www.gnu.org/licenses/>.

%   This is the user variables

% This is the font sizes
/TitleFont 13 def	% For the title
/FootFont 7 def		% For the foot texts
/CoordFont 5 def	% For the coordinates
/SquareFont 6 def	% For the letters inside the squares

% This is the linewidth  (one unit is 1/72 inch)
/LineWidth .3 def

% This is how dark some things should be
% 0 is black   1 is white
/SeaCol .6 def		% Colour of seas
/KnownCol .97 def	% Colour of known squares
/SqTeCol 0 def		% Colour of sector symbols
/WNCol 0.9 def		% Colour of the other pages in where square
/WKCol 1 def		% Colour of this page in where square


%===========================================================================
%========== Behind these walls lures the monster called PostSript ==========
%============== If thou should choose to enter know thy enemy ==============
%===========================================================================

% This is the size of the little box showing which map this is
/WhereSize YMARGINS 2 div def

/AdjustX
{
  /x exch def
  x 0 lt { /x x largex 1 add mod def } if
  x 0 lt { /x x largex 1 add add def } if
  x largex gt { /x x largex 1 add mod def } if
  x largex 1 add eq {/x 0 def} if
  x
} def

/AdjustY
{
  /y exch def
  y 0 lt { /y y largey 1 add mod def } if
  y 0 lt { /y y largey 1 add add def } if
  y largey gt { /y y largey 1 add mod def } if
  y largey 1 add eq {/y 0 def} if
   y
} def

/DoCoords
{
  newpath
  font findfont CoordFont scalefont setfont

  % Do Y coordiates
  XMARGINS 2 div
  YMARGINS .80 mul ydel sqsize mul add
  moveto
  ystart 1 ystart ydel add
  {
    /y exch AdjustY def
    currentpoint
    /str y (888) cvs def
    str stringwidth pop 5 add neg 2
    rmoveto
    str show
    2 copy moveto
    xdel 1 add sqsize mul 2 add 2 rmoveto
    str show
    sqsize sub moveto
  } for

  % Do X coordinates
  XMARGINS 2 div 
  YMARGINS .80 mul CoordFont sub 2 sub
  moveto
  xstart 1 xstart xdel add
  {
    /x exch AdjustX def
    x 0 lt { /x x largex add def } if
    x largex 1 add gt { /x x largex 1 add sub def } if
    currentpoint
    /str x (888) cvs def
    str show
    2 copy ydel 2 add sqsize mul add 2 add moveto
    str show
    exch sqsize add exch moveto
  } for
} def

/DoGrid
{
  newpath

  % Do X-lines
  XMARGINS 2 div
  YMARGINS .80 mul
  moveto
  ystart ydel add -1 ystart 1 sub
  {
    pop
    xdel 1 add sqsize mul 0
    rlineto
    xdel 1 add sqsize mul neg sqsize
    rmoveto
  } for

  % Do Y-lines
  XMARGINS 2 div
  YMARGINS .80 mul
  moveto
  xstart 1 xstart xdel add 1 add
  {
    pop
    0 ydel 1 add sqsize mul
    rlineto
    sqsize ydel 1 add sqsize mul neg
    rmoveto
  } for

  stroke
} def

/FillSec
{
  sqsize 0 rlineto
  0 sqsize rlineto
  sqsize neg 0 rlineto
  closepath
  gsave
  /old currentgray def
  setgray
  fill
  old setgray
  grestore
  stroke
}def

/DoMap
{
  /NotEmpty false def
  /c ( ) def
  font findfont SquareFont scalefont setfont

  0 1 xdel
  {
    /X exch def
    0 1 ydel
    {
      /Y exch def
      newpath
      XMARGINS 2 div X sqsize mul add
      ydel sqsize mul YMARGINS .80 mul add Y sqsize mul sub
      moveto
      /x X xstart add AdjustX def
      /y Y ystart add AdjustY def
      c 0 Map y get x get put
      c ( ) ne
      {
        /NotEmpty true def
        /NotDone true def
	gsave
	.01 setlinewidth
        currentpoint
         KnownCol FillSec
         SqTeCol setgray
        moveto
	maptype (0) ne
	{
          c (#) eq
          {
            /NotDone false def
  	    sqsize dup scale
  	    .2 .2 rmoveto
  	    .3 .6 rlineto
  	    .3 -.6 rlineto
  	    -.2 .4 rmoveto
 	    -.2 0 rlineto
 	    stroke
          } if
          c (^) eq
          {
            /NotDone false def
 	    sqsize dup scale
 	    .2 .2 rmoveto
 	    .3 .4 rlineto
 	    .2 -.4 rlineto
 	    .1 0 rmoveto
 	    -.1 .3 rlineto
 	    -.1 -.1 rlineto
            stroke
          } if
          c (%) eq
          {
            /NotDone false def
 	    sqsize dup scale
	    currentpoint
	    translate
	    .2 .2 rmoveto
 	    .4 .2 .2 180 40 arcn
	    .70 .2 moveto
 	    .6 .2 .10 0 180 arc
 	    stroke
          } if
          c (-) eq
          {
            /NotDone false def
	    sqsize dup scale
  	    .2 .2 rmoveto
 	    .6 0 rlineto
  	    stroke
          } if
        } if
        c (~) eq
        {
          /NotDone false def
          SeaCol FillSec
        } if
        NotDone
        {
          sqsize 5 div dup rmoveto
          c show
        } if
	grestore
      } if
    } for
  } for
} def


/DoText
{
  font findfont TitleFont scalefont setfont
  PAGEWIDTH title stringwidth pop sub 2 div
  YMARGINS .4 mul TitleFont 2 div sub
  moveto title show
  font findfont FootFont  scalefont setfont
  foot stringwidth pop
  foot2 stringwidth pop
  gt {foot} {foot2} ifelse
  stringwidth pop
  PAGEWIDTH exch sub dup
  YMARGINS .4 mul
  moveto foot show
  YMARGINS .4 mul FootFont 1.5 mul sub
  moveto foot2 show
} def

/DrawWhere
{
  1 1 xpages { 
    /xsq exch def
    ypages -1 1 {
      /ysq exch def
      newpath
      0 0 moveto
      /sqxsize WhereSize xpages div def
      /sqysize WhereSize ypages div def
      xsq sqxsize mul ypages ysq sub sqysize mul
      rmoveto % Am now at top left of this square
      sqxsize 0 rlineto
      0 sqysize rlineto
      sqxsize neg 0 rlineto
      closepath
      WNCol setgray
      xsq currx eq ysq curry eq and { WKCol setgray } if
      gsave fill grestore
      0 setgray stroke
    } for
  } for
} def

/DoPage  % currx curry xstart xdel ystart  ydel
{
  /ydel exch def
  /ystart exch def
  /xdel exch def
  /xstart exch def
  /curry exch def
  /currx exch def

  /largey Map length 1 sub def
  /largex Map 1 get length 1 sub def

  initgraphics
  XOFFSET YOFFSET translate
  noteq { 0.8544 0.9304 scale 0 YMARGINS .4 mul translate} if
  LineWidth setlinewidth
  DoText
  xpages 1 ne ypages 1 ne or {DrawWhere} if
  coords {DoCoords} if
  grid {DoGrid} if
  DoMap
  NotEmpty {showpage} if
} def