mods/skins/init.lua

   1 local path = minetest.get_modpath(minetest.get_current_modname())
   2
   3 -- path for the temporary skins file
   4 local temppath = minetest.get_worldpath() .. "/skins_temp.png"
   5
   6 local pngimage = dofile(path.."/png_lua/png.lua")
   7
   8 --run through all the skins on the skindex and index them all locally
   9 --only try to index further than the point in the current list max
  10
  11 local http = minetest.request_http_api()
  12 local id = "Lua Skins Updater"
  13 -- Binary downloads are required
  14 if not core.features.httpfetch_binary_data then
  15         print("outdated version of MINETEST detected!")
  16     return(nil)
  17 end
  18
  19 if not http then
  20     for i = 1,5 do
  21         print("!WARNING!")
  22     end
  23     print("---------------------------------------------------------------")
  24     print("HTTP access is required. Please add this to your minetest.conf:")
  25     print("secure.http_mods = skins")
  26     print("!!Skins will not work without this!!")
  27     print("---------------------------------------------------------------")
  28     return(nil)
  29 end
  30
  31 -- Fancy debug wrapper to download an URL
  32 local function fetch_url(url, callback)
  33         http.fetch({
  34         url = url,
  35         timeout = 3,
  36     }, function(result)
  37         --print(dump(result))
  38         if result.succeeded then
  39
  40                         --if result.code ~= 200 then
  41                                 --core.log("warning", ("%s: STATUS=%i URL=%s"):format(
  42                                 --      _ID_, result.code, url))
  43                         --end
  44                         return callback(result.data)
  45                 end
  46                 core.log("warning", ("%s: Failed to download URL=%s"):format(
  47                         id, url))
  48         end)
  49 end
  50
  51 --https://gist.github.com/marceloCodget/3862929 rgb to hex
  52
  53 local function rgbToHex(rgb)
  54
  55         local hexadecimal = ""
  56
  57         for key, value in pairs(rgb) do
  58                 local hex = ''
  59
  60                 while(value > 0)do
  61                         local index = math.fmod(value, 16) + 1
  62                         value = math.floor(value / 16)
  63                         hex = string.sub('0123456789ABCDEF', index, index) .. hex
  64                 end
  65
  66                 if(string.len(hex) == 0)then
  67                         hex = '00'
  68
  69                 elseif(string.len(hex) == 1)then
  70                         hex = '0' .. hex
  71                 end
  72
  73                 hexadecimal = hexadecimal .. hex
  74         end
  75
  76         return hexadecimal
  77 end
  78
  79 local xmax = 64
  80 local ymax = 32
  81 local function file_to_texture(image)
  82     local x = 1
  83     local y = 1
  84     --local base_texture = "[combine:"..xmax.."x"..ymax
  85     local base_texture = "[combine:" .. xmax .. "x" .. ymax
  86     --local base_texture2 = "[combine:"..xmax.."x"..ymax
  87     for _,line in pairs(image.pixels) do
  88         for _,data in pairs(line) do
  89             if x <= 32 or y > 16 then
  90                 local hex = rgbToHex({data.R,data.G,data.B})
  91                 --skip transparent pixels
  92                 if data.A > 0 then
  93                     --https://github.com/GreenXenith/skinmaker/blob/master/init.lua#L57 Thanks :D
  94
  95                     base_texture = base_texture .. (":%s,%s=%s"):format(x - 1, y - 1, "(p.png\\^[colorize\\:#" .. hex .. ")")
  96                 end
  97             --else
  98             --    print(dump(data))
  99             end
 100             x = x + 1
 101             if x > xmax then
 102                 x = 1
 103                 y = y + 1
 104             end
 105             if y > ymax then
 106                 break
 107             end
 108         end
 109     end
 110     return(base_texture)
 111 end
 112
 113 -- Function to fetch a range of pages
 114 fetch_function = function(name)
 115     fetch_url("https://raw.githubusercontent.com/"..name.."/crafter_skindex/master/skin.png", function(data)
 116         if data then
 117             local f = io.open(temppath, "wb")
 118             f:write(data)
 119             f:close()
 120
 121             local img = pngimage(temppath, nil, false, false)
 122             if img then
 123                 local stored_texture = file_to_texture(img)
 124
 125                 --print("===============================================================")
 126                 --print(stored_texture)
 127                 if stored_texture then
 128                     --set the player's skin
 129                     local player = minetest.get_player_by_name(name)
 130                     player:set_properties({textures = {stored_texture}})
 131                     local meta = player:get_meta()
 132                     meta:set_string("skin",stored_texture)
 133
 134                     recalculate_armor(player)
 135
 136                     --[[
 137                     player:hud_add(
 138                         {
 139                             hud_elem_type = "image",  -- See HUD element types
 140                             -- Type of element, can be "image", "text", "statbar", or "inventory"
 141
 142                             position = {x=0.5, y=0.5},
 143                             -- Left corner position of element
 144
 145                             name = "<name>",
 146
 147                             scale = {x = 2, y = 2},
 148
 149                             text = stored_texture,
 150
 151                             text2 = "<text>",
 152
 153                             number = 2,
 154
 155                             item = 3,
 156                             -- Selected item in inventory. 0 for no item selected.
 157
 158                             direction = 0,
 159                             -- Direction: 0: left-right, 1: right-left, 2: top-bottom, 3: bottom-top
 160
 161                             alignment = {x=0, y=0},
 162
 163                             offset = {x=0, y=0},
 164
 165                             size = { x=100, y=100 },
 166                             -- Size of element in pixels
 167
 168                             z_index = 0,
 169                             -- Z index : lower z-index HUDs are displayed behind higher z-index HUDs
 170                         }
 171                     )
 172                     ]]--
 173                 end
 174             end
 175
 176         end
 177     end)
 178 end
 179
 180 --local img = pngimage(minetest.get_modpath("skins").."/skin_temp/temp.png", nil, false, false)
 181 --print(dump(img))
 182
 183 minetest.register_on_joinplayer(function(player)
 184     local meta = player:get_meta()
 185     meta:set_string("skin","player.png")
 186     minetest.after(0,function()
 187         fetch_function(player:get_player_name())
 188     end)
 189 end)