Module:Chessboard/Hiashatar

local p = {}

local function image_square( pc, row, col, size )
	local colornames = {
		l = { m = 'white', f = 'white' },
		d = { m = 'black', f = 'black' }
	}
	local piecenames = {
		k = { name = 'king', gender = 'm' },
		h = { name = 'hia', gender = 'm' },
		q = { name = 'queen', gender = 'f' },
		b = { name = 'bishop', gender = 'm' },
		n = { name = 'knight', gender = 'm' },
		r = { name = 'rook', gender = 'f' },
		p = { name = 'pawn', gender = 'f' }
		}
	local symnames = {
		xx = 'black cross',
		ox = 'white cross',
		xo = 'black circle',
		oo = 'white circle',
		ul = 'arrow up-left',
		ua = 'arrow up',
		ur = 'arrow up-right',
		la = 'arrow left',
		ra = 'arrow right',
		dl = 'arrow down-left',
		da = 'arrow down',
		dr = 'arrow down-right',
		lr = 'arrow left-right',
		ud = 'arrow up-down',
		x0 = 'zero',
		x1 = 'one',
		x2 = 'two',
		x3 = 'three',
		x4 = 'four',
		x5 = 'five',
		x6 = 'six',
		x7 = 'seven',
		x8 = 'eight',
		x9 = 'nine',
	}
	local colchar = {'A','B','C','D','E','F','G','H','I','J'}
    local color = mw.ustring.gsub( pc, '^.*(%w)(%w).*$', '%2' ) or ''
    local piece = mw.ustring.gsub( pc, '^.*(%w)(%w).*$', '%1' ) or ''
    local alt = colchar[col] .. row .. ' '

    if colornames[color] and piecenames[piece] then
		alt = alt .. colornames[color][piecenames[piece]['gender']] .. ' ' .. piecenames[piece]['name']
    else
		alt = alt .. ( symnames[piece .. color] or piece .. ' ' .. color )
	end

	fn = ''

	if pc == 'kl' then
		fn = 'Chess klt45'
	elseif pc == 'kd' then
		fn = 'Chess kdt45'
	elseif pc == 'hl' then
		fn = 'Hia white'
	elseif pc == 'hd' then
		fn = 'Hia black'
	elseif pc == 'ql' then
		fn = 'Chess qlt45'
	elseif pc == 'qd' then
		fn = 'Chess qdt45'
	elseif pc == 'bl' then
		fn = 'Chess blt45'
	elseif pc == 'bd' then
		fn = 'Chess bdt45'
	elseif pc == 'nl' then
		fn = 'Chess nlt45'
	elseif pc == 'nd' then
		fn = 'Chess ndt45'
	elseif pc == 'rl' then
		fn = 'Chess rlt45'
	elseif pc == 'rd' then
		fn = 'Chess rdt45'
	elseif pc == 'pl' then
		fn = 'Chess plt45'
	elseif pc == 'pd' then
		fn = 'Chess pdt45'
	end

	return string.format( '[[File:%s.svg|%dx%dpx|alt=%s|%s]]', fn, size, size, alt, alt )

end

local function innerboard(args, size, rev)
	local root = mw.html.create('div')
	root:addClass('hiashatar-board')
		:css('position', 'relative')
		:wikitext(string.format( '[[File:HiaShatar.svg|%dx%dpx|link=]]', 10 * size, 10 * size ))

    for trow = 1,10 do
        local row = rev and trow or ( 11 - trow )
        for tcol = 1,10 do
            local col = rev and ( 11 - tcol ) or tcol
            local piece = args[10 * ( 10 - row ) + col + 2] or ''
            if piece:match( '%w%w' ) then
               local img = image_square(piece:match('%w%w'), row, col, size )
               root:tag('div')
               		:css('position', 'absolute')
               		:css('z-index', '3')
               		:css('top', tostring(( trow - 1.5 ) * size) .. 'px')
               		:css('left', tostring(( tcol - 0.2 ) * size) .. 'px')
               		:css('width', size .. 'px')
               		:css('height', size .. 'px')
               		:wikitext(img)
            end
        end
    end

    return tostring(root)
end

function HiaShatarboard(args, size, rev, letters, numbers, header, footer, align, clear)
    function letters_row( rev, num_lt, num_rt )
        local letters = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J'}
        local root = mw.html.create('')
        if num_lt then
        	root:tag('td')
        		:css('vertical-align', 'inherit')
        		:css('padding', '0')
        end
        for k = 1,10 do
        	root:tag('td')
        		:css('padding', '0')
        		:css('vartical-align', 'inherit')
        		:css('height', '18px')
        		:css('width', size .. 'px')
        		:wikitext(rev and letters[11-k] or letters[k])
        end
        if num_rt then
        	root:tag('td')
        		:css('vertical-align', 'inherit')
        		:css('padding', '0')
        end
        return tostring(root)
    end

    local letters_tp = letters:match( 'both' ) or letters:match( 'top' )
    local letters_bt = letters:match( 'both' ) or letters:match( 'bottom' )
    local numbers_lt = numbers:match( 'both' ) or numbers:match( 'left' )
    local numbers_rt = numbers:match( 'both' ) or numbers:match( 'right' )
    local width = 10 * size + 2
    if ( numbers_lt ) then width = width + 18 end
    if ( numbers_rt ) then width = width + 18 end

    local root = mw.html.create('div')
    	:addClass('thumb')
    	:addClass(align)
    	:css('clear', clear)
    	:css('text-align', 'center')
    	:wikitext(header)
    local div = root:tag('div')
    	:addClass('thumbinner')
    	:css('width', width .. 'px')
    local b = div:tag('table')
    	:attr('cellpadding', '0')
    	:attr('cellspacing', '0')
    	:css('background', 'white')
    	:css('font-size', '88%')
    	:css('border' , '1px #b0b0b0 solid')
    	:css('padding', '0')
    	:css('margin', 'auto')

    if ( letters_tp ) then
        b:tag('tr')
        	:css('vertical-align', 'middle')
        	:wikitext(letters_row( rev, numbers_lt, numbers_rt ))
    end
    local tablerow = b:tag('tr'):css('vertical-align','middle')
    if ( numbers_lt ) then
    	tablerow:tag('td')
    		:css('padding', '0')
    		:css('vertical-align', 'inherit')
    		:css('width', '18px')
    		:css('height', size .. 'px')
    		:wikitext(rev and 1 or 10)
    end
    local td = tablerow:tag('td')
    	:attr('colspan', 10)
    	:attr('rowspan', 10)
    	:css('padding', '0')
    	:css('vertical-align', 'inherit')
    	:wikitext(innerboard(args, size, rev))

    if ( numbers_rt ) then
    	tablerow:tag('td')
    		:css('padding', '0')
    		:css('vertical-align', 'inherit')
    		:css('width', '18px')
    		:css('height', size .. 'px')
    		:wikitext(rev and 1 or 10)
    end
    if ( numbers_lt or numbers_rt ) then
       for trow = 2, 10 do
          local idx = rev and trow or ( 11 - trow )
          tablerow = b:tag('tr')
          	:css('vertical-align', 'middle')
          if ( numbers_lt ) then
          	tablerow:tag('td')
          		:css('padding', '0')
          		:css('vertical-align', 'inherit')
          		:css('height', size .. 'px')
          		:wikitext(idx)
          end
          if ( numbers_rt ) then
          	tablerow:tag('td')
          		:css('padding', '0')
          		:css('vertical-align', 'inherit')
          		:css('height', size .. 'px')
          		:wikitext(idx)
          end
       end
    end
    if ( letters_bt ) then
        b:tag('tr')
        	:css('vertical-align', 'middle')
        	:wikitext(letters_row( rev, numbers_lt, numbers_rt ))
    end

    if (footer and footer ~= '') then
		div:tag('div')
			:addClass('thumbcaption')
			:wikitext(footer)
	end

    return tostring(root)
end

function convertFenToArgs( fen )
    -- converts FEN notation to 64 entry array of positions, offset by 2
    local res = { ' ', ' ' }
    -- Loop over rows, which are delimited by /
    for srow in string.gmatch( "/" .. fen, "/%w+" ) do
        -- Loop over all letters and numbers in the row
        for piece in srow:gmatch( "%w" ) do
            if piece:match( "%d" ) then -- if a digit
                for k=1,piece do
                    table.insert(res,' ')
                end
            else -- not a digit
                local color = piece:match( '%u' ) and 'l' or 'd'
                piece = piece:lower()
                table.insert( res, piece .. color )
            end
        end
    end

    return res
end

function convertArgsToFen( args, offset )
    function nullOrWhitespace( s ) return not s or s:match( '^%s*(.-)%s*$' ) == '' end
    function piece( s )
        return nullOrWhitespace( s ) and 1
        or s:gsub( '%s*(%a)(%a)%s*', function( a, b ) return b == 'l' and a:upper() or a end )
    end

    local res = ''
    offset = offset or 0
    for row = 1, 10 do
        for file = 1, 10 do
            res = res .. piece( args[10*(row - 1) + file + offset] )
        end
        if row < 10 then res = res .. '/' end
    end
    return mw.ustring.gsub(res, '1+', function( s ) return #s end )
end

function p.board(frame)
    local args = frame.args
    local pargs = frame:getParent().args
    local size = args.size or pargs.size or '26'
    local reverse = ( args.reverse or pargs.reverse or '' ):lower() == "true"
    local letters = ( args.letters or pargs.letters or 'both' ):lower()
    local numbers = ( args.numbers or pargs.numbers or 'both' ):lower()
    local header = args[2] or pargs[2] or ''
    local footer = args[67] or pargs[67] or ''
    local align = ( args[1] or pargs[1] or 'tright' ):lower()
    local clear = args.clear or pargs.clear or ( align:match('tright') and 'right' ) or 'none'
    local fen = args.fen or pargs.fen

    size = mw.ustring.match( size, '[%d]+' ) or '26' -- remove px from size
    if (fen) then
        align = args.align or pargs.align or 'tright'
        clear = args.clear or pargs.clear or ( align:match('tright') and 'right' ) or 'none'
        header = args.header or pargs.header or ''
        footer = args.footer or pargs.footer or ''
        return HiaShatarboard( convertFenToArgs( fen ), size, reverse, letters, numbers, header, footer, align, clear )
    end
    if args[3] then
        return HiaShatarboard(args, size, reverse, letters, numbers, header, footer, align, clear)
    else
        return HiaShatarboard(pargs, size, reverse, letters, numbers, header, footer, align, clear)
    end
end

function p.fen2ascii(frame)
    -- {{#invoke:HiaShatarboard|fen2ascii|fen=...}}
    local b = convertFenToArgs( frame.args.fen )
    local res = '|=\n'
    local offset = 2
    for row = 1,10 do
        local n = (11 - row)
        res = res .. n .. ' |' ..
            table.concat(b, '|', 10*(row-1) + 1 + offset, 10*(row-1) + 10 + offset) .. '|=\n'
    end
    res = mw.ustring.gsub( res,'\| \|', '|  |' )
    res = mw.ustring.gsub( res,'\| \|', '|  |' )
    res = res .. '   A  B  C  D  E  F  G  H  I  J'
    return res
end

function p.ascii2fen( frame )
    -- {{#invoke:HiaShatarboard|ascii2fen|kl| | |....}}
    return convertArgsToFen( frame.args, frame.args.offset or 1 )
end

return p
Usage
