-- Forked from [[Module:Sandbox/Bawolff/Chessboard]]
----------------------------------------------------
local p = {}
local cfg, nrows, ncols
cfg = {}
-- From Module:Chessboard/Chess
function cfg.dims()
return 8, 8
end
function cfg.letters()
return { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h' }
end
function cfg.image_board(size)
return string.format('[[File:Chessboard480.svg|%dx%dpx|link=|class=notpageimage]]', 8 * size, 8 * size)
end
function cfg.image_square(pc, row, col, size)
local colornames = { l = 'white', d = 'black', u = 'unknown color' }
local piecenames = {
p = 'pawn',
r = 'rook',
n = 'knight',
b = 'bishop',
q = 'queen',
k = 'king',
a = 'archbishop',
c = 'chancellor',
z = 'champion',
w = 'wizard',
t = 'fool',
M = 'mann',
h = 'upside-down pawn',
m = 'upside-down rook',
B = 'upside-down bishop',
N = 'upside-down knight',
f = 'upside-down king',
g = 'upside-down queen',
e = 'elephant',
s = 'boat',
G = 'giraffe',
U = 'unicorn',
Z = 'zebra'
}
local symnames = {
xx = 'black cross',
ox = 'white cross',
xo = 'black circle',
oo = 'white circle',
ul = 'up-left arrow',
ua = 'up arrow',
ur = 'up-right arrow',
la = 'left arrow',
ra = 'right arrow',
dl = 'down-left arrow',
da = 'down arrow',
dr = 'down-right arrow',
lr = 'left-right arrow',
ud = 'up-down arrow',
db = 'up-right and down-left arrow',
dw = 'up-left and down-right arrow',
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' }
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 .. ' '
local alt = ''
if colornames[color] and piecenames[piece] then
alt = alt .. colornames[color] .. ' ' .. piecenames[piece]
else
alt = alt .. (symnames[piece .. color] or piece .. ' ' .. color)
end
return string.format('[[File:Chess %s%st45.svg|%dx%dpx|alt=%s|%s|link=|class=notpageimage|top]]', piece, color, size, size, alt, alt)
end
-- End Module:Chessboard/Chess
-- start Module:Chessboard
local function innerboard(definedPieces, pieceInfo, size, rev)
pattern = cfg.pattern or '%w%w'
local root = mw.html.create('div')
root:addClass('chess-pieces notheme')
:css('position', 'relative')
:wikitext(cfg.image_board(size))
for piece in pairs(definedPieces) do
if piece:match(pattern) then
local img = cfg.image_square(piece:match(pattern), row, col, size)
local curPos = pieceInfo[1][piece] or { -1, -1 }
root:tag('div')
:css('top', 'calc(var(--calculator-top_piece' .. piece .. ',' .. curPos[1] .. ')*1px)')
:css('left', 'calc(var(--calculator-left_piece' .. piece .. ',' .. curPos[2] .. ')*1px)')
:css('z-index', 'min(var(--calculator-top_piece' .. piece .. ',' .. curPos[1] .. '),0)')
:wikitext(img)
end
end
return tostring(root)
end
local function getPositions(args, size, rev)
pattern = cfg.pattern or '%w%w'
local pieceInfo = {}
local definedPieces = {}
for moveIndex, move in ipairs(args) do
pieceInfo[moveIndex] = {}
local layout = convertFenToArgs(move)
for trow = 1, nrows do
local row = rev and trow or (1 + nrows - trow)
for tcol = 1, ncols do
local col = rev and (1 + ncols - tcol) or tcol
local piece = layout[ncols * (nrows - row) + col + 2] or ''
local pieceName = piece:match(pattern)
if pieceName then
-- Maximum number of pieces of the same type and color is 10
-- (eg. 2 rooks + 8 pawns each promoted to a rook)
for i = 2, 10 do
if pieceInfo[moveIndex][pieceName] then
pieceName = pieceName .. i
else
break
end
end
definedPieces[pieceName] = true
pieceInfo[moveIndex][pieceName] = { (trow - 1) * size, (tcol - 1) * size }
end
end
end
end
return definedPieces, pieceInfo
end
function chessboard(definedPieces, pieceInfo, size, rev, letters, numbers, header, footer, align, clear)
function letters_row(rev, num_lt, num_rt)
local letters = cfg.letters()
local root = mw.html.create('')
if num_lt then
root:tag('td')
end
for k = 1, ncols do
root:tag('td')
:css('height', '18px')
:css('width', size .. 'px')
:wikitext(rev and letters[1 + ncols - k] or letters[k])
end
if num_rt then
root:tag('td')
end
return tostring(root)
end
local letters_top = letters:match('both') or letters:match('top')
local letters_bottom = letters:match('both') or letters:match('bottom')
local numbers_left = numbers:match('both') or numbers:match('left')
local numbers_right = numbers:match('both') or numbers:match('right')
local width = ncols * size + 2
if (numbers_left) then
width = width + 18
end
if (numbers_right) then
width = width + 18
end
local root = mw.html.create('div')
:addClass('chessboard')
:addClass('calculator-container')
:addClass('thumb')
:addClass('noviewer')
:addClass(align)
if (header and header ~= '') then
root:tag('div')
:addClass('center')
:css('line-height', '130%')
:css('margin', '0 auto')
:css('max-width', (width + ncols) .. 'px')
:wikitext(header)
end
local div = root:tag('div')
:addClass('thumbinner')
:css('width', width .. 'px')
local b = div:tag('table')
:attr('cellpadding', '0')
:attr('cellspacing', '0')
if (letters_top) then
b:tag('tr')
:wikitext(letters_row(rev, numbers_left, numbers_right))
end
local tablerow = b:tag('tr')
if (numbers_left) then
tablerow:tag('td')
:css('width', '18px')
:css('height', size .. 'px')
:wikitext(rev and 1 or nrows)
end
local td = tablerow:tag('td')
:attr('colspan', ncols)
:attr('rowspan', nrows)
:wikitext(innerboard(definedPieces, pieceInfo, size, rev))
if (numbers_right) then
tablerow:tag('td')
:css('width', '18px')
:css('height', size .. 'px')
:wikitext(rev and 1 or nrows)
end
if (numbers_left or numbers_right) then
for trow = 2, nrows do
local idx = rev and trow or (1 + nrows - trow)
tablerow = b:tag('tr')
if (numbers_left) then
tablerow:tag('td')
:css('height', size .. 'px')
:wikitext(idx)
end
if (numbers_right) then
tablerow:tag('td')
:css('height', size .. 'px')
:wikitext(idx)
end
end
end
if (letters_bottom) then
b:tag('tr')
:wikitext(letters_row(rev, numbers_left, numbers_right))
end
if footer and mw.text.trim(footer) ~= '' then
div:tag('div')
:addClass('thumbcaption')
:wikitext(footer)
end
return tostring(root) ..
mw.getCurrentFrame():extensionTag('templatestyles', '', { src = 'Module:Chessboard/styles.css' })
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
local function getPieceMoves(definedPieces, pieceInfo)
local ret = mw.html.create('div')
for piece in pairs(definedPieces) do
local curTop = -1
local curLeft = -1
local switchTop = 'switch(move,'
local switchLeft = 'switch(move,'
for moveNumber, move in ipairs(pieceInfo) do
if (move[piece] and move[piece][1] or -1) ~= curTop then
switchTop = switchTop .. (moveNumber - 1) .. ',' .. curTop .. ','
curTop = (move[piece] and move[piece][1] or -1)
end
if (move[piece] and move[piece][2] or -1) ~= curLeft then
switchLeft = switchLeft .. (moveNumber - 1) .. ',' .. curLeft .. ','
curLeft = (move[piece] and move[piece][2] or -1)
end
end
switchTop = switchTop .. curTop .. ')'
switchLeft = switchLeft .. curLeft .. ')'
ret:tag('span')
:addClass('calculator-field')
:attr('id', 'calculator-field-top_piece' .. piece)
:attr('data-calculator-type', 'hidden')
:css('display', 'none')
:attr('data-calculator-formula', switchTop)
ret:tag('span')
:addClass('calculator-field')
:attr('id', 'calculator-field-left_piece' .. piece)
:attr('data-calculator-type', 'hidden')
:css('display', 'none')
:attr('data-calculator-formula', switchLeft)
end
return tostring(ret)
end
function p.board(frame)
local args = frame.args
local pargs = frame:getParent().args
nrows, ncols = cfg.dims()
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[nrows * ncols + 3] or pargs[nrows * ncols + 3] 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 pgn = args.pgn or pargs.pgn
local moves, metadata
local definedPieces, pieceInfo
size = mw.ustring.match(size, '[%d]+') or '26' -- remove px from size
assert(pgn, "pgn argument required")
local pgnModule = require('Module:Pgn')
metadata, moves = pgnModule.main(pgn)
definedPieces, pieceInfo = getPositions(moves, size, reverse)
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 ''
if args.animate then
align = align .. ' animate'
footer = footer .. frame:extensionTag('templatestyles', '', { src = 'Module:Sandbox/SD0001/Chess3/animations.css' })
end
header = header .. frame:preprocess('{{calculator button|contents={{!}}←|for=move|type=default|formula=1}}'
.. '{{calculator button|contents=←|for=move|type=default|formula=max(1, move-1)}}'
.. '{{calculator button|id=next|contents=→|for=move|type=default|formula=min(' .. (#moves) .. ', move+1)}}'
.. '{{calculator button|contents=→{{!}}|for=move|type=default|formula=' .. (#moves) .. '}}'
.. '{{calculator|type=hidden|default=1|id=move}}'
)
footer = footer .. getPieceMoves(definedPieces, pieceInfo)
return chessboard(definedPieces, pieceInfo, size, reverse, letters, numbers, header, footer, align, clear)
end
return p
