data/themes/pieces/ShogiTTF/theme.lua

   1 import("piece_theme.lua")
   2 shadow=7.0
   3 shadow_color="#404050"
   4 shadow_offset_x=6
   5 shadow_offset_y=4
   6 shadow_grow=5
   7
   8 theme.options = OptList {
   9   BoolOpt("moves_overlay", "Moves overlay", true)
  10 }
  11
  12 function tile(white, ratio)
  13   return function(size)
  14     local i = Image(size,size)
  15     i:clear()
  16
  17     local g = RadialGradient(Point(size*0.5,size*0.5), size*0.5, Point(size*0.3,size*0.3))
  18     g[0] = "#ffeda2"
  19     g[1] = "#c0a870"
  20     local b = Brush(g)
  21
  22     if white then
  23       i:translate(-size, -size)
  24       i:rotate(180)
  25       b:translate(-size, -size)
  26       b:rotate(180)
  27     end
  28
  29     if ratio then
  30       i:scale(ratio, ratio)
  31       i:translate(size*(1-ratio)*0.5, size*(1-ratio)*0.5)
  32       b:scale(ratio, ratio)
  33       b:translate(size*(1-ratio)*0.5, size*(1-ratio)*0.5)
  34     end
  35
  36     i:draw_glyph(Rect(0,0,size,size), "Shogi.ttf", "0x2c", "black", b)
  37     return i
  38   end
  39 end
  40 function addChar(char, promoted)
  41   return function(i, size)
  42     i:draw_glyph(Rect(0,0,size,size), "Shogi.ttf", char,
  43                  promoted and "#d00000" or "#004000",
  44                  "#fff3c8", 4, false)
  45     return i
  46   end
  47 end
  48
  49 function draw_arrowhead(i, p, vx,vy, length, rwidth, linecolor,linewidth)
  50   -- normalize to 1 the direction vector
  51   local vl = (vx*vx + vy*vy)^0.5
  52   vx,vy = vx/vl, vy/vl
  53   -- the component vector along the arrow direction
  54   local vxdirect, vydirect = -vx*length, -vy*length
  55   -- an orthogonal vector of requested relative width
  56   local vxortho,vyortho = vydirect*rwidth, -vxdirect*rwidth
  57
  58   i:draw_line(p,Point(p.x+vxdirect+vxortho,p.y-vydirect-vyortho), linecolor,linewidth)
  59   i:draw_line(p,Point(p.x+vxdirect-vxortho,p.y-vydirect+vyortho), linecolor,linewidth)
  60 end
  61
  62 function shogi_moves(...)
  63   local moves = {...}
  64   return function(i,size)
  65     if not theme.options.moves_overlay.value then
  66        return i
  67     end
  68
  69     local index, move
  70     --local xcenter, ycenter, width = size/2, size/2, size/4
  71     local xcenter, ycenter, width = 0.8*size, 0.82*size, 0.08*size
  72     local tilesize,shortsize = 0.8*width, 0.3*width
  73     local arrowlen,arrowrwidth = 0.2*width, 0.5
  74     local centerpoint = Point(xcenter,ycenter)
  75     local b = Brush("red")
  76     for index,move in ipairs(moves) do
  77       local x,y,long = move[1],move[2],move[3]
  78       if long then
  79         local p2 = Point(xcenter+1.5*x*width, ycenter-1.5*y*width)
  80         i:draw_line(centerpoint,p2, "purple",1)
  81         draw_arrowhead(i, p2, x,y, arrowlen,arrowrwidth, "purple",1)
  82       else
  83         i:draw_line(centerpoint, Point(xcenter+x*width,ycenter-y*width),"red",1)
  84         i:fill_rect(Rect(xcenter+x*width-shortsize/2, ycenter-y*width-shortsize/2,
  85                          shortsize, shortsize), b)
  86       end
  87     end
  88
  89     -- the tile
  90     i:fill_rect(Rect(xcenter-tilesize/2,ycenter-tilesize/2,
  91                      tilesize,tilesize), b)
  92
  93     return i
  94   end
  95 end
  96
  97 function shogi_piece(char, white, promoted, ratio, ...)
  98   return addShadow(overlay(tile(white, ratio),
  99                     shogi_moves(...),
 100                     addChar(char, promoted)))
 101 end
 102
 103 theme.black_king      = shogi_piece("0x6B", false, false, 1,
 104                                     {-1,1},{0,1},{1,1},
 105                                     {-1,0},{1,0},
 106                                     {-1,-1},{0,-1},{1,-1})
 107 theme.black_rook      = shogi_piece("0x72", false, false, 0.96,
 108                                     {-1,0,1},{1,0,1},{0,-1,1},{0,1,1})
 109 theme.black_p_rook    = shogi_piece("0x52", false, true, 0.96,
 110                                     {-1,0,1},{1,0,1},{0,-1,1},{0,1,1},
 111                                     {-1,-1},{1,-1},{-1,1},{1,1})
 112 theme.black_bishop    = shogi_piece("0x62", false, false, 0.93,
 113                                     {-1,-1,1},{1,-1,1},{-1,1,1},{1,1,1})
 114 theme.black_p_bishop  = shogi_piece("0x42", false, true, 0.93,
 115                                     {-1,-1,1},{1,-1,1},{-1,1,1},{1,1,1},
 116                                     {-1,0},{1,0},{0,-1},{0,1})
 117 theme.black_gold      = shogi_piece("0x67", false, false, 0.9,
 118                                     {-1,1},{0,1},{1,1},
 119                                     {-1,0},{1,0},{0,-1})
 120 theme.black_silver    = shogi_piece("0x73", false, false, 0.9,
 121                                     {-1,1},{0,1},{1,1},
 122                                     {-1,-1},{1,-1})
 123 theme.black_p_silver  = shogi_piece("0x53", false, true, 0.9,
 124                                     {-1,1},{0,1},{1,1},
 125                                     {-1,0},{1,0},{0,-1})
 126 theme.black_knight    = shogi_piece("0x68", false, false, 0.86,
 127                                     {-1,2},{1,2})
 128 theme.black_p_knight  = shogi_piece("0x48", false, true, 0.86,
 129                                     {-1,1},{0,1},{1,1},
 130                                     {-1,0},{1,0},{0,-1})
 131 theme.black_lance     = shogi_piece("0x6C", false, false, 0.83,
 132                                     {0,1,1})
 133 theme.black_p_lance   = shogi_piece("0x4C", false, true, 0.83,
 134                                     {-1,1},{0,1},{1,1},
 135                                     {-1,0},{1,0},{0,-1})
 136 theme.black_pawn      = shogi_piece("0x70", false, false, 0.8,
 137                                     {0,1})
 138 theme.black_p_pawn    = shogi_piece("0x50", false, true, 0.8,
 139                                     {-1,1},{0,1},{1,1},
 140                                     {-1,0},{1,0},{0,-1})
 141
 142 theme.white_king      = shogi_piece("0x6B", true, false, 1,
 143                                     {-1,1},{0,1},{1,1},
 144                                     {-1,0},{1,0},
 145                                     {-1,-1},{0,-1},{1,-1})
 146 theme.white_rook      = shogi_piece("0x72", true, false, 0.96,
 147                                     {-1,0,1},{1,0,1},{0,-1,1},{0,1,1})
 148 theme.white_p_rook    = shogi_piece("0x52", true, true, 0.96,
 149                                     {-1,0,1},{1,0,1},{0,-1,1},{0,1,1},
 150                                     {-1,-1},{1,-1},{-1,1},{1,1})
 151 theme.white_bishop    = shogi_piece("0x62", true, false, 0.93,
 152                                     {-1,-1,1},{1,-1,1},{-1,1,1},{1,1,1})
 153 theme.white_p_bishop  = shogi_piece("0x42", true, true, 0.93,
 154                                     {-1,-1,1},{1,-1,1},{-1,1,1},{1,1,1},
 155                                     {-1,0},{1,0},{0,-1},{0,1})
 156 theme.white_gold      = shogi_piece("0x67", true, false, 0.9,
 157                                     {-1,1},{0,1},{1,1},
 158                                     {-1,0},{1,0},{0,-1})
 159 theme.white_silver    = shogi_piece("0x73", true, false, 0.9,
 160                                     {-1,1},{0,1},{1,1},
 161                                     {-1,-1},{1,-1})
 162 theme.white_p_silver  = shogi_piece("0x53", true, true, 0.9,
 163                                     {-1,1},{0,1},{1,1},
 164                                     {-1,0},{1,0},{0,-1})
 165 theme.white_knight    = shogi_piece("0x68", true, false, 0.86,
 166                                     {-1,2},{1,2})
 167 theme.white_p_knight  = shogi_piece("0x48", true, true, 0.86,
 168                                     {-1,1},{0,1},{1,1},
 169                                     {-1,0},{1,0},{0,-1})
 170 theme.white_lance     = shogi_piece("0x6C", true, false, 0.83,
 171                                     {0,1,1})
 172 theme.white_p_lance   = shogi_piece("0x4C", true, true, 0.83,
 173                                     {-1,1},{0,1},{1,1},
 174                                     {-1,0},{1,0},{0,-1})
 175 theme.white_pawn      = shogi_piece("0x70", true, false, 0.8,
 176                                     {0,1})
 177 theme.white_p_pawn    = shogi_piece("0x50", true, true, 0.8,
 178                                     {-1,1},{0,1},{1,1},
 179                                     {-1,0},{1,0},{0,-1})
 180
 181 -- To be able to adapt this theme to chess too
 182 -- should use a Free King (\u5954\u738b) instead
 183 theme.black_queen  = theme.black_gold
 184 theme.white_queen  = theme.white_gold
 185