init.lua

   1 -- This mod provides the visible text on signs library used by Home Decor
   2 -- and perhaps other mods at some point in the future.  Forked from thexyz's/
   3 -- PilzAdam's original text-on-signs mod and rewritten by Vanessa Ezekowitz
   4 -- and Diego Martinez
   5
   6 -- textpos = {
   7 --              { delta = {entity position for 0° yaw}, exact yaw expression }
   8 --              { delta = {entity position for 180° yaw}, exact yaw expression }
   9 --              { delta = {entity position for 270° yaw}, exact yaw expression }
  10 --              { delta = {entity position for 90° yaw}, exact yaw expression }
  11 -- }
  12
  13 -- CWz's keyword interact mod uses this setting.
  14 local current_keyword = minetest.setting_get("interact_keyword") or "iaccept"
  15
  16 signs_lib = {}
  17 screwdriver = screwdriver or {}
  18
  19 signs_lib.wallmounted_rotate = function(pos, node, user, mode, new_param2)
  20         if mode ~= screwdriver.ROTATE_AXIS then return false end
  21         minetest.swap_node(pos, {name = node.name, param2 = (node.param2 + 1) % 6})
  22         for _, v in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
  23                 local e = v:get_luaentity()
  24                 if e and e.name == "signs:text" then
  25                         v:remove()
  26                 end
  27         end
  28         signs_lib.update_sign(pos)
  29         return true
  30 end
  31
  32 signs_lib.modpath = minetest.get_modpath("signs_lib")
  33
  34 local DEFAULT_TEXT_SCALE = {x=0.8, y=0.5}
  35
  36 signs_lib.regular_wall_sign_model = {
  37         nodebox = {
  38                 type = "wallmounted",
  39                 wall_side =   { -0.5,    -0.25,   -0.4375, -0.4375,  0.375,  0.4375 },
  40                 wall_bottom = { -0.4375, -0.5,    -0.25,    0.4375, -0.4375, 0.375 },
  41                 wall_top =    { -0.4375,  0.4375, -0.375,   0.4375,  0.5,    0.25 }
  42         },
  43         textpos = {
  44                 nil,
  45                 nil,
  46                 {delta = { x =  0.41, y = 0.07, z =  0    }, yaw = math.pi / -2},
  47                 {delta = { x = -0.41, y = 0.07, z =  0    }, yaw = math.pi / 2},
  48                 {delta = { x =  0,    y = 0.07, z =  0.41 }, yaw = 0},
  49                 {delta = { x =  0,    y = 0.07, z = -0.41 }, yaw = math.pi},
  50         }
  51 }
  52
  53 signs_lib.metal_wall_sign_model = {
  54         nodebox = {
  55                 type = "fixed",
  56                 fixed = {-0.4375, -0.25, 0.4375, 0.4375, 0.375, 0.5}
  57         },
  58         textpos = {
  59                 {delta = { x =  0,     y = 0.07, z =  0.41 }, yaw = 0},
  60                 {delta = { x =  0.41,  y = 0.07, z =  0    }, yaw = math.pi / -2},
  61                 {delta = { x =  0,     y = 0.07, z = -0.41 }, yaw = math.pi},
  62                 {delta = { x = -0.41,  y = 0.07, z =  0    }, yaw = math.pi / 2},
  63         }
  64 }
  65
  66 signs_lib.yard_sign_model = {
  67         nodebox = {
  68                 type = "fixed",
  69                 fixed = {
  70                                 {-0.4375, -0.25, -0.0625, 0.4375, 0.375, 0},
  71                                 {-0.0625, -0.5, -0.0625, 0.0625, -0.1875, 0},
  72                 }
  73         },
  74         textpos = {
  75                 {delta = { x =  0,    y = 0.07, z = -0.08 }, yaw = 0},
  76                 {delta = { x = -0.08, y = 0.07, z =  0    }, yaw = math.pi / -2},
  77                 {delta = { x =  0,    y = 0.07, z =  0.08 }, yaw = math.pi},
  78                 {delta = { x =  0.08, y = 0.07, z =  0    }, yaw = math.pi / 2},
  79         }
  80 }
  81
  82 signs_lib.hanging_sign_model = {
  83         nodebox = {
  84                 type = "fixed",
  85                 fixed = {
  86                                 {-0.4375, -0.3125, -0.0625, 0.4375, 0.3125, 0},
  87                                 {-0.4375, 0.25, -0.03125, 0.4375, 0.5, -0.03125},
  88                 }
  89         },
  90         textpos = {
  91                 {delta = { x =  0,    y = -0.02, z = -0.08 }, yaw = 0},
  92                 {delta = { x = -0.08, y = -0.02, z =  0    }, yaw = math.pi / -2},
  93                 {delta = { x =  0,    y = -0.02, z =  0.08 }, yaw = math.pi},
  94                 {delta = { x =  0.08, y = -0.02, z =  0    }, yaw = math.pi / 2},
  95         }
  96 }
  97
  98 signs_lib.sign_post_model = {
  99         nodebox = {
 100                 type = "fixed",
 101                 fixed = {
 102                                 {-0.4375, -0.25, -0.1875, 0.4375, 0.375, -0.125},
 103                                 {-0.125, -0.5, -0.125, 0.125, 0.5, 0.125},
 104                 }
 105         },
 106         textpos = {
 107                 {delta = { x = 0,    y = 0.07, z = -0.2 }, yaw = 0},
 108                 {delta = { x = -0.2, y = 0.07, z = 0    }, yaw = math.pi / -2},
 109                 {delta = { x = 0,    y = 0.07, z = 0.2  }, yaw = math.pi},
 110                 {delta = { x = 0.2,  y = 0.07, z = 0    }, yaw = math.pi / 2},
 111         }
 112 }
 113
 114 -- Boilerplate to support localized strings if intllib mod is installed.
 115 local S = rawget(_G, "intllib") and intllib.Getter() or function(s) return s end
 116 signs_lib.gettext = S
 117
 118 -- the list of standard sign nodes
 119
 120 signs_lib.sign_node_list = {
 121                 "default:sign_wall_wood",
 122                 "signs:sign_yard",
 123                 "signs:sign_hanging",
 124                 "signs:sign_wall_green",
 125                 "signs:sign_wall_yellow",
 126                 "signs:sign_wall_red",
 127                 "signs:sign_wall_white_red",
 128                 "signs:sign_wall_white_black",
 129                 "signs:sign_wall_orange",
 130                 "signs:sign_wall_blue",
 131                 "signs:sign_wall_brown",
 132                 "locked_sign:sign_wall_locked"
 133 }
 134
 135 local default_sign, default_sign_image
 136
 137 -- Default sign was renamed in 0.4.14. Support both & old versions.
 138 if minetest.registered_nodes["default:sign_wall_wood"] then
 139         default_sign = "default:sign_wall_wood"
 140         default_sign_image = "default_sign_wood.png"
 141 else
 142         default_sign = "default:sign_wall"
 143         default_sign_image = "default_sign_wall.png"
 144 end
 145
 146 default_sign_metal = "default:sign_wall_steel"
 147 default_sign_metal_image = "default_sign_steel.png"
 148
 149 --table copy
 150
 151 function signs_lib.table_copy(t)
 152     local nt = { };
 153     for k, v in pairs(t) do
 154         if type(v) == "table" then
 155             nt[k] = signs_lib.table_copy(v)
 156         else
 157             nt[k] = v
 158         end
 159     end
 160     return nt
 161 end
 162
 163 -- infinite stacks
 164
 165 if minetest.get_modpath("unified_inventory") or not minetest.setting_getbool("creative_mode") then
 166         signs_lib.expect_infinite_stacks = false
 167 else
 168         signs_lib.expect_infinite_stacks = true
 169 end
 170
 171 -- CONSTANTS
 172
 173 local MP = minetest.get_modpath("signs_lib")
 174
 175 -- Used by `build_char_db' to locate the file.
 176 local FONT_FMT = "%s/hdf_%02x.png"
 177
 178 -- Simple texture name for building text texture.
 179 local FONT_FMT_SIMPLE = "hdf_%02x.png"
 180
 181 -- Path to the textures.
 182 local TP = MP.."/textures"
 183
 184 -- Lots of overkill here. KISS advocates, go away, shoo! ;) -- kaeza
 185
 186 local PNG_HDR = string.char(0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A)
 187
 188 -- Read the image size from a PNG file.
 189 -- Returns image_w, image_h.
 190 -- Only the LSB is read from each field!
 191 local function read_image_size(filename)
 192         local f = io.open(filename, "rb")
 193         f:seek("set", 0x0)
 194         local hdr = f:read(8)
 195         if hdr ~= PNG_HDR then
 196                 f:close()
 197                 return
 198         end
 199         f:seek("set", 0x13)
 200         local ws = f:read(1)
 201         f:seek("set", 0x17)
 202         local hs = f:read(1)
 203         f:close()
 204         return ws:byte(), hs:byte()
 205 end
 206
 207 -- Set by build_char_db()
 208 local LINE_HEIGHT
 209 local SIGN_WIDTH
 210 local COLORBGW, COLORBGH
 211
 212 -- Size of the canvas, in characters.
 213 -- Please note that CHARS_PER_LINE is multiplied by the average character
 214 -- width to get the total width of the canvas, so for proportional fonts,
 215 -- either more or fewer characters may fit on a line.
 216 local CHARS_PER_LINE = 30
 217 local NUMBER_OF_LINES = 6
 218
 219 -- 6 rows, max 80 chars per, plus a bit of fudge to
 220 -- avoid excess trimming (e.g. due to color codes)
 221
 222 local MAX_INPUT_CHARS = 600
 223
 224 -- This holds the individual character widths.
 225 -- Indexed by the actual character (e.g. charwidth["A"])
 226 local charwidth
 227
 228 -- helper functions to trim sign text input/output
 229
 230 local function trim_input(text)
 231         return text:sub(1, math.min(MAX_INPUT_CHARS, text:len()))
 232 end
 233
 234 local function build_char_db()
 235
 236         charwidth = { }
 237
 238         -- To calculate average char width.
 239         local total_width = 0
 240         local char_count = 0
 241
 242         for c = 32, 126 do
 243                 local w, h = read_image_size(FONT_FMT:format(TP, c))
 244                 if w and h then
 245                         local ch = string.char(c)
 246                         charwidth[ch] = w
 247                         total_width = total_width + w
 248                         char_count = char_count + 1
 249                 end
 250         end
 251
 252         COLORBGW, COLORBGH = read_image_size(TP.."/slc_n.png")
 253         assert(COLORBGW and COLORBGH, "error reading bg dimensions")
 254         LINE_HEIGHT = COLORBGH
 255
 256         -- XXX: Is there a better way to calc this?
 257         SIGN_WIDTH = math.floor((total_width / char_count) * CHARS_PER_LINE)
 258
 259 end
 260
 261 local sign_groups = {choppy=2, dig_immediate=2}
 262
 263 local fences_with_sign = { }
 264
 265 -- some local helper functions
 266
 267 local function split_lines_and_words_old(text)
 268         local lines = { }
 269         local line = { }
 270         if not text then return end
 271         for word in text:gmatch("%S+") do
 272                 if word == "|" then
 273                         table.insert(lines, line)
 274                         if #lines >= NUMBER_OF_LINES then break end
 275                         line = { }
 276                 elseif word == "\\|" then
 277                         table.insert(line, "|")
 278                 else
 279                         table.insert(line, word)
 280                 end
 281         end
 282         table.insert(lines, line)
 283         return lines
 284 end
 285
 286 local function split_lines_and_words(text)
 287         if not text then return end
 288         text = string.gsub(text, "@KEYWORD", current_keyword)
 289         local lines = { }
 290         for _, line in ipairs(text:split("\n")) do
 291                 table.insert(lines, line:split(" "))
 292         end
 293         return lines
 294 end
 295
 296 local math_max = math.max
 297
 298 local function fill_line(x, y, w, c)
 299         c = c or "0"
 300         local tex = { }
 301         for xx = 0, math.max(0, w), COLORBGW do
 302                 table.insert(tex, (":%d,%d=slc_%s.png"):format(x + xx, y, c))
 303         end
 304         return table.concat(tex)
 305 end
 306
 307 local function make_line_texture(line, lineno, pos)
 308
 309         local width = 0
 310         local maxw = 0
 311
 312         local words = { }
 313         local n = minetest.registered_nodes[minetest.get_node(pos).name]
 314         local defaultcolor = n.defaultcolor or 0
 315
 316         local cur_color = tonumber(defaultcolor, 16)
 317
 318         -- We check which chars are available here.
 319         for word_i, word in ipairs(line) do
 320                 local chars = { }
 321                 local ch_offs = 0
 322                 local word_l = #word
 323                 local i = 1
 324                 while i <= word_l  do
 325                         local c = word:sub(i, i)
 326                         if c == "#" then
 327                                 local cc = tonumber(word:sub(i+1, i+1), 16)
 328                                 if cc then
 329                                         i = i + 1
 330                                         cur_color = cc
 331                                 end
 332                         else
 333                                 local w = charwidth[c]
 334                                 if w then
 335                                         width = width + w + 1
 336                                         if width >= (SIGN_WIDTH - charwidth[" "]) then
 337                                                 width = 0
 338                                         else
 339                                                 maxw = math_max(width, maxw)
 340                                         end
 341                                         if #chars < MAX_INPUT_CHARS then
 342                                                 table.insert(chars, {
 343                                                         off=ch_offs,
 344                                                         tex=FONT_FMT_SIMPLE:format(c:byte()),
 345                                                         col=("%X"):format(cur_color),
 346                                                 })
 347                                         end
 348                                         ch_offs = ch_offs + w
 349                                 end
 350                         end
 351                         i = i + 1
 352                 end
 353                 width = width + charwidth[" "] + 1
 354                 maxw = math_max(width, maxw)
 355                 table.insert(words, { chars=chars, w=ch_offs })
 356         end
 357
 358         -- Okay, we actually build the "line texture" here.
 359
 360         local texture = { }
 361
 362         local start_xpos = math.floor((SIGN_WIDTH - maxw) / 2)
 363
 364         local xpos = start_xpos
 365         local ypos = (LINE_HEIGHT * lineno)
 366
 367         cur_color = nil
 368
 369         for word_i, word in ipairs(words) do
 370                 local xoffs = (xpos - start_xpos)
 371                 if (xoffs > 0) and ((xoffs + word.w) > maxw) then
 372                         table.insert(texture, fill_line(xpos, ypos, maxw, "n"))
 373                         xpos = start_xpos
 374                         ypos = ypos + LINE_HEIGHT
 375                         lineno = lineno + 1
 376                         if lineno >= NUMBER_OF_LINES then break end
 377                         table.insert(texture, fill_line(xpos, ypos, maxw, cur_color))
 378                 end
 379                 for ch_i, ch in ipairs(word.chars) do
 380                         if ch.col ~= cur_color then
 381                                 cur_color = ch.col
 382                                 table.insert(texture, fill_line(xpos + ch.off, ypos, maxw, cur_color))
 383                         end
 384                         table.insert(texture, (":%d,%d=%s"):format(xpos + ch.off, ypos, ch.tex))
 385                 end
 386                 table.insert(texture, (":%d,%d=hdf_20.png"):format(xpos + word.w, ypos))
 387                 xpos = xpos + word.w + charwidth[" "]
 388                 if xpos >= (SIGN_WIDTH + charwidth[" "]) then break end
 389         end
 390
 391         table.insert(texture, fill_line(xpos, ypos, maxw, "n"))
 392         table.insert(texture, fill_line(start_xpos, ypos + LINE_HEIGHT, maxw, "n"))
 393
 394         return table.concat(texture), lineno
 395 end
 396
 397 local function make_sign_texture(lines, pos)
 398         local texture = { ("[combine:%dx%d"):format(SIGN_WIDTH, LINE_HEIGHT * NUMBER_OF_LINES) }
 399         local lineno = 0
 400         for i = 1, #lines do
 401                 if lineno >= NUMBER_OF_LINES then break end
 402                 local linetex, ln = make_line_texture(lines[i], lineno, pos)
 403                 table.insert(texture, linetex)
 404                 lineno = ln + 1
 405         end
 406         table.insert(texture, "^[makealpha:0,0,0")
 407         return table.concat(texture, "")
 408 end
 409
 410 local function set_obj_text(obj, text, new, pos)
 411         local split = new and split_lines_and_words or split_lines_and_words_old
 412         local n = minetest.registered_nodes[minetest.get_node(pos).name]
 413         local text_scale = n.text_scale or DEFAULT_TEXT_SCALE
 414         obj:set_properties({
 415                 textures={make_sign_texture(split(text), pos)},
 416                 visual_size = text_scale,
 417         })
 418 end
 419
 420 signs_lib.construct_sign = function(pos, locked)
 421     local meta = minetest.get_meta(pos)
 422         meta:set_string(
 423                 "formspec",
 424                 "size[6,4]"..
 425                 "textarea[0,-0.3;6.5,3;text;;${text}]"..
 426                 "button_exit[2,3.4;2,1;ok;Write]"..
 427                 "background[-0.5,-0.5;7,5;bg_signs_lib.jpg]")
 428         meta:set_string("infotext", "")
 429 end
 430
 431 signs_lib.destruct_sign = function(pos)
 432     local objects = minetest.get_objects_inside_radius(pos, 0.5)
 433     for _, v in ipairs(objects) do
 434                 local e = v:get_luaentity()
 435         if e and e.name == "signs:text" then
 436             v:remove()
 437         end
 438     end
 439 end
 440
 441 local function make_infotext(text)
 442         text = trim_input(text)
 443         local lines = split_lines_and_words(text) or {}
 444         local lines2 = { }
 445         for _, line in ipairs(lines) do
 446                 table.insert(lines2, (table.concat(line, " "):gsub("#[0-9a-fA-F]", ""):gsub("##", "#")))
 447         end
 448         return table.concat(lines2, "\n")
 449 end
 450
 451 signs_lib.update_sign = function(pos, fields, owner)
 452
 453         -- First, check if the interact keyword from CWz's mod is being set,
 454         -- or has been changed since the last restart...
 455
 456         local meta = minetest.get_meta(pos)
 457         local stored_text = meta:get_string("text") or ""
 458         current_keyword = rawget(_G, "mki_interact_keyword") or current_keyword
 459
 460         if fields then -- ...we're editing the sign.
 461                 if fields.text and string.find(dump(fields.text), "@KEYWORD") then
 462                         meta:set_string("keyword", current_keyword)
 463                 else
 464                         meta:set_string("keyword", nil)
 465                 end
 466         elseif string.find(dump(stored_text), "@KEYWORD") then -- we need to check if the password is being set/changed
 467
 468                 local stored_keyword = meta:get_string("keyword")
 469                 if stored_keyword and stored_keyword ~= "" and stored_keyword ~= current_keyword then
 470                         signs_lib.destruct_sign(pos)
 471                         meta:set_string("keyword", current_keyword)
 472                         local ownstr = ""
 473                         if owner then ownstr = "Locked sign, owned by "..owner.."\n" end
 474                         meta:set_string("infotext", ownstr..string.gsub(make_infotext(stored_text), "@KEYWORD", current_keyword).." ")
 475                 end
 476         end
 477
 478         local new
 479
 480         if fields then
 481
 482                 fields.text = trim_input(fields.text)
 483
 484                 local ownstr = ""
 485                 if owner then ownstr = "Locked sign, owned by "..owner.."\n" end
 486
 487                 meta:set_string("infotext", ownstr..string.gsub(make_infotext(fields.text), "@KEYWORD", current_keyword).." ")
 488                 meta:set_string("text", fields.text)
 489
 490                 meta:set_int("__signslib_new_format", 1)
 491                 new = true
 492         else
 493                 new = (meta:get_int("__signslib_new_format") ~= 0)
 494         end
 495         local text = meta:get_string("text")
 496         if text == nil then return end
 497         local objects = minetest.get_objects_inside_radius(pos, 0.5)
 498         local found
 499         for _, v in ipairs(objects) do
 500                 local e = v:get_luaentity()
 501                 if e and e.name == "signs:text" then
 502                         if found then
 503                                 v:remove()
 504                         else
 505                                 set_obj_text(v, text, new, pos)
 506                                 found = true
 507                         end
 508                 end
 509         end
 510         if found then
 511                 return
 512         end
 513
 514         -- if there is no entity
 515         local sign_info
 516         local signnode = minetest.get_node(pos)
 517         local signname = signnode.name
 518         local textpos = minetest.registered_nodes[signname].textpos
 519         if textpos then
 520                 sign_info = textpos[minetest.get_node(pos).param2 + 1]
 521         elseif signnode.name == "signs:sign_yard" then
 522                 sign_info = signs_lib.yard_sign_model.textpos[minetest.get_node(pos).param2 + 1]
 523         elseif signnode.name == "signs:sign_hanging" then
 524                 sign_info = signs_lib.hanging_sign_model.textpos[minetest.get_node(pos).param2 + 1]
 525         elseif string.find(signnode.name, "sign_wall") then
 526                 if signnode.name == default_sign
 527                   or signnode.name == default_sign_metal
 528                   or signnode.name == "locked_sign:sign_wall_locked" then
 529                         sign_info = signs_lib.regular_wall_sign_model.textpos[minetest.get_node(pos).param2 + 1]
 530                 else
 531                         sign_info = signs_lib.metal_wall_sign_model.textpos[minetest.get_node(pos).param2 + 1]
 532                 end
 533         else -- ...it must be a sign on a fence post.
 534                 sign_info = signs_lib.sign_post_model.textpos[minetest.get_node(pos).param2 + 1]
 535         end
 536         if sign_info == nil then
 537                 return
 538         end
 539         local text = minetest.add_entity({x = pos.x + sign_info.delta.x,
 540                                                                                 y = pos.y + sign_info.delta.y,
 541                                                                                 z = pos.z + sign_info.delta.z}, "signs:text")
 542         text:setyaw(sign_info.yaw)
 543 end
 544
 545 -- What kind of sign do we need to place, anyway?
 546
 547 function signs_lib.determine_sign_type(itemstack, placer, pointed_thing, locked)
 548         local name
 549         name = minetest.get_node(pointed_thing.under).name
 550         if fences_with_sign[name] then
 551                 if minetest.is_protected(pointed_thing.under, placer:get_player_name()) then
 552                         minetest.record_protection_violation(pointed_thing.under,
 553                                 placer:get_player_name())
 554                         return itemstack
 555                 end
 556         else
 557                 name = minetest.get_node(pointed_thing.above).name
 558                 local def = minetest.registered_nodes[name]
 559                 if not def.buildable_to then
 560                         return itemstack
 561                 end
 562                 if minetest.is_protected(pointed_thing.above, placer:get_player_name()) then
 563                         minetest.record_protection_violation(pointed_thing.above,
 564                                 placer:get_player_name())
 565                         return itemstack
 566                 end
 567         end
 568
 569         local node=minetest.get_node(pointed_thing.under)
 570
 571         if minetest.registered_nodes[node.name] and minetest.registered_nodes[node.name].on_rightclick then
 572                 return minetest.registered_nodes[node.name].on_rightclick(pointed_thing.under, node, placer, itemstack)
 573         else
 574                 local above = pointed_thing.above
 575                 local under = pointed_thing.under
 576                 local dir = {x = under.x - above.x,
 577                                          y = under.y - above.y,
 578                                          z = under.z - above.z}
 579
 580                 local wdir = minetest.dir_to_wallmounted(dir)
 581
 582                 local placer_pos = placer:getpos()
 583                 if placer_pos then
 584                         dir = {
 585                                 x = above.x - placer_pos.x,
 586                                 y = above.y - placer_pos.y,
 587                                 z = above.z - placer_pos.z
 588                         }
 589                 end
 590
 591                 local fdir = minetest.dir_to_facedir(dir)
 592                 local pt_name = minetest.get_node(under).name
 593                 local signname = itemstack:get_name()
 594
 595                 if fences_with_sign[pt_name] and signname == default_sign then
 596                         minetest.add_node(under, {name = fences_with_sign[pt_name], param2 = fdir})
 597                 elseif wdir == 0 and signname == default_sign then
 598                         minetest.add_node(above, {name = "signs:sign_hanging", param2 = fdir})
 599                 elseif wdir == 1 and signname == default_sign then
 600                         minetest.add_node(above, {name = "signs:sign_yard", param2 = fdir})
 601                 elseif signname == default_sign_metal then
 602                         minetest.add_node(above, {name = signname, param2 = wdir })
 603                 elseif signname ~= default_sign
 604                   and signname ~= default_sign_metal
 605                   and signname ~= "locked_sign:sign_wall_locked" then -- it's a signs_lib colored metal wall sign.
 606                         minetest.add_node(above, {name = signname, param2 = fdir})
 607                 else -- it must be a default or locked wooden wall sign
 608                         minetest.add_node(above, {name = signname, param2 = wdir }) -- note it's wallmounted here!
 609                         if locked then
 610                                 local meta = minetest.get_meta(above)
 611                                 local owner = placer:get_player_name()
 612                                 meta:set_string("owner", owner)
 613                         end
 614                 end
 615
 616                 if not signs_lib.expect_infinite_stacks then
 617                         itemstack:take_item()
 618                 end
 619                 return itemstack
 620         end
 621 end
 622
 623 function signs_lib.receive_fields(pos, formname, fields, sender, lock)
 624         if minetest.is_protected(pos, sender:get_player_name()) then
 625                 minetest.record_protection_violation(pos,
 626                         sender:get_player_name())
 627                 return
 628         end
 629         local lockstr = lock and "locked " or ""
 630         if fields and fields.text and fields.ok then
 631                 minetest.log("action", S("%s wrote \"%s\" to "..lockstr.."sign at %s"):format(
 632                         (sender:get_player_name() or ""),
 633                         fields.text,
 634                         minetest.pos_to_string(pos)
 635                 ))
 636                 if lock then
 637                         signs_lib.update_sign(pos, fields, sender:get_player_name())
 638                 else
 639                         signs_lib.update_sign(pos, fields)
 640                 end
 641         end
 642 end
 643
 644 minetest.register_node(":"..default_sign, {
 645         description = S("Sign"),
 646         inventory_image = default_sign_image,
 647         wield_image = default_sign_image,
 648         node_placement_prediction = "",
 649         sunlight_propagates = true,
 650         paramtype = "light",
 651         paramtype2 = "wallmounted",
 652         drawtype = "nodebox",
 653         node_box = signs_lib.regular_wall_sign_model.nodebox,
 654         tiles = {"signs_wall_sign.png"},
 655         groups = sign_groups,
 656
 657         on_place = function(itemstack, placer, pointed_thing)
 658                 return signs_lib.determine_sign_type(itemstack, placer, pointed_thing)
 659         end,
 660         on_construct = function(pos)
 661                 signs_lib.construct_sign(pos)
 662         end,
 663         on_destruct = function(pos)
 664                 signs_lib.destruct_sign(pos)
 665         end,
 666         on_receive_fields = function(pos, formname, fields, sender)
 667                 signs_lib.receive_fields(pos, formname, fields, sender)
 668         end,
 669         on_punch = function(pos, node, puncher)
 670                 signs_lib.update_sign(pos)
 671         end,
 672         on_rotate = signs_lib.wallmounted_rotate
 673 })
 674
 675 minetest.register_node(":signs:sign_yard", {
 676     paramtype = "light",
 677         sunlight_propagates = true,
 678     paramtype2 = "facedir",
 679     drawtype = "nodebox",
 680     node_box = signs_lib.yard_sign_model.nodebox,
 681         selection_box = {
 682                 type = "fixed",
 683                 fixed = {-0.4375, -0.5, -0.0625, 0.4375, 0.375, 0}
 684         },
 685     tiles = {"signs_top.png", "signs_bottom.png", "signs_side.png", "signs_side.png", "signs_back.png", "signs_front.png"},
 686     groups = {choppy=2, dig_immediate=2},
 687     drop = default_sign,
 688
 689     on_construct = function(pos)
 690         signs_lib.construct_sign(pos)
 691     end,
 692     on_destruct = function(pos)
 693         signs_lib.destruct_sign(pos)
 694     end,
 695         on_receive_fields = function(pos, formname, fields, sender)
 696                 signs_lib.receive_fields(pos, formname, fields, sender)
 697         end,
 698         on_punch = function(pos, node, puncher)
 699                 signs_lib.update_sign(pos)
 700         end,
 701 })
 702
 703 minetest.register_node(":signs:sign_hanging", {
 704     paramtype = "light",
 705         sunlight_propagates = true,
 706     paramtype2 = "facedir",
 707     drawtype = "nodebox",
 708     node_box = signs_lib.hanging_sign_model.nodebox,
 709     selection_box = {
 710                 type = "fixed",
 711                 fixed = {-0.45, -0.275, -0.049, 0.45, 0.5, 0.049}
 712         },
 713     tiles = {
 714                 "signs_hanging_top.png",
 715                 "signs_hanging_bottom.png",
 716                 "signs_hanging_side.png",
 717                 "signs_hanging_side.png",
 718                 "signs_hanging_back.png",
 719                 "signs_hanging_front.png"
 720         },
 721     groups = {choppy=2, dig_immediate=2},
 722     drop = default_sign,
 723
 724     on_construct = function(pos)
 725         signs_lib.construct_sign(pos)
 726     end,
 727     on_destruct = function(pos)
 728         signs_lib.destruct_sign(pos)
 729     end,
 730         on_receive_fields = function(pos, formname, fields, sender)
 731                 signs_lib.receive_fields(pos, formname, fields, sender)
 732         end,
 733         on_punch = function(pos, node, puncher)
 734                 signs_lib.update_sign(pos)
 735         end,
 736 })
 737
 738 minetest.register_node(":signs:sign_post", {
 739     paramtype = "light",
 740         sunlight_propagates = true,
 741     paramtype2 = "facedir",
 742     drawtype = "nodebox",
 743     node_box = signs_lib.sign_post_model.nodebox,
 744     tiles = {
 745                 "signs_post_top.png",
 746                 "signs_post_bottom.png",
 747                 "signs_post_side.png",
 748                 "signs_post_side.png",
 749                 "signs_post_back.png",
 750                 "signs_post_front.png",
 751         },
 752     groups = {choppy=2, dig_immediate=2},
 753     drop = {
 754                 max_items = 2,
 755                 items = {
 756                         { items = { default_sign }},
 757                         { items = { "default:fence_wood" }},
 758                 },
 759     },
 760 })
 761
 762 -- Locked wall sign
 763
 764 minetest.register_privilege("sign_editor", "Can edit all locked signs")
 765
 766 minetest.register_node(":locked_sign:sign_wall_locked", {
 767         description = S("Sign"),
 768         inventory_image = "signs_locked_inv.png",
 769         wield_image = "signs_locked_inv.png",
 770         node_placement_prediction = "",
 771         sunlight_propagates = true,
 772         paramtype = "light",
 773         paramtype2 = "wallmounted",
 774         drawtype = "nodebox",
 775         node_box = signs_lib.regular_wall_sign_model.nodebox,
 776         tiles = { "signs_wall_sign_locked.png" },
 777         groups = sign_groups,
 778         on_place = function(itemstack, placer, pointed_thing)
 779                 return signs_lib.determine_sign_type(itemstack, placer, pointed_thing, true)
 780         end,
 781         on_construct = function(pos)
 782                 signs_lib.construct_sign(pos, true)
 783         end,
 784         on_destruct = function(pos)
 785                 signs_lib.destruct_sign(pos)
 786         end,
 787         on_receive_fields = function(pos, formname, fields, sender)
 788                 local meta = minetest.get_meta(pos)
 789                 local owner = meta:get_string("owner")
 790                 local pname = sender:get_player_name() or ""
 791                 if pname ~= owner and pname ~= minetest.setting_get("name")
 792                   and not minetest.check_player_privs(pname, {sign_editor=true}) then
 793                         return
 794                 end
 795                 signs_lib.receive_fields(pos, formname, fields, sender, true)
 796         end,
 797         on_punch = function(pos, node, puncher)
 798                 signs_lib.update_sign(pos)
 799         end,
 800         can_dig = function(pos, player)
 801                 local meta = minetest.get_meta(pos)
 802                 local owner = meta:get_string("owner")
 803                 local pname = player:get_player_name()
 804                 return pname == owner or pname == minetest.setting_get("name")
 805                         or minetest.check_player_privs(pname, {sign_editor=true})
 806         end,
 807         on_rotate = signs_lib.wallmounted_rotate
 808 })
 809
 810 -- default metal sign, if defined
 811
 812 if minetest.registered_nodes["default:sign_wall_steel"] then
 813         minetest.register_node(":"..default_sign_metal, {
 814                 description = S("Sign"),
 815                 inventory_image = default_sign_metal_image,
 816                 wield_image = default_sign_metal_image,
 817                 node_placement_prediction = "",
 818                 sunlight_propagates = true,
 819                 paramtype = "light",
 820                 paramtype2 = "wallmounted",
 821                 drawtype = "nodebox",
 822                 node_box = signs_lib.regular_wall_sign_model.nodebox,
 823                 tiles = {"signs_wall_sign_metal.png"},
 824                 groups = sign_groups,
 825
 826                 on_place = function(itemstack, placer, pointed_thing)
 827                         return signs_lib.determine_sign_type(itemstack, placer, pointed_thing)
 828                 end,
 829                 on_construct = function(pos)
 830                         signs_lib.construct_sign(pos)
 831                 end,
 832                 on_destruct = function(pos)
 833                         signs_lib.destruct_sign(pos)
 834                 end,
 835                 on_receive_fields = function(pos, formname, fields, sender)
 836                         signs_lib.receive_fields(pos, formname, fields, sender)
 837                 end,
 838                 on_punch = function(pos, node, puncher)
 839                         signs_lib.update_sign(pos)
 840                 end,
 841                 on_rotate = signs_lib.wallmounted_rotate
 842         })
 843 end
 844
 845 -- metal, colored signs
 846
 847 local sign_colors = { "green", "yellow", "red", "white_red", "white_black", "orange", "blue", "brown" }
 848 local sign_default_text_colors = { "f", "0", "f", "4", "0", "0", "f", "f" }
 849
 850 for i, color in ipairs(sign_colors) do
 851         minetest.register_node(":signs:sign_wall_"..color, {
 852                 description = S("Sign ("..color..", metal)"),
 853                 inventory_image = "signs_"..color.."_inv.png",
 854                 wield_image = "signs_"..color.."_inv.png",
 855                 node_placement_prediction = "",
 856                 paramtype = "light",
 857                 sunlight_propagates = true,
 858                 paramtype2 = "facedir",
 859                 drawtype = "nodebox",
 860                 node_box = signs_lib.metal_wall_sign_model.nodebox,
 861                 tiles = {
 862                         "signs_metal_tb.png",
 863                         "signs_metal_tb.png",
 864                         "signs_metal_sides.png",
 865                         "signs_metal_sides.png",
 866                         "signs_metal_back.png",
 867                         "signs_"..color.."_front.png"
 868                 },
 869                 defaultcolor = sign_default_text_colors[i],
 870                 groups = sign_groups,
 871                 on_place = function(itemstack, placer, pointed_thing)
 872                         return signs_lib.determine_sign_type(itemstack, placer, pointed_thing)
 873                 end,
 874                 on_construct = function(pos)
 875                         signs_lib.construct_sign(pos)
 876                 end,
 877                 on_destruct = function(pos)
 878                         signs_lib.destruct_sign(pos)
 879                 end,
 880                 on_receive_fields = function(pos, formname, fields, sender)
 881                         signs_lib.receive_fields(pos, formname, fields, sender)
 882                 end,
 883                 on_punch = function(pos, node, puncher)
 884                         signs_lib.update_sign(pos)
 885                 end,
 886         })
 887 end
 888
 889 local signs_text_on_activate
 890
 891 signs_text_on_activate = function(self)
 892         local pos = self.object:getpos()
 893         local meta = minetest.get_meta(pos)
 894         local text = meta:get_string("text")
 895         local new = (meta:get_int("__signslib_new_format") ~= 0)
 896         if text then
 897                 text = trim_input(text)
 898                 set_obj_text(self.object, text, new, pos)
 899         end
 900 end
 901
 902 minetest.register_entity(":signs:text", {
 903     collisionbox = { 0, 0, 0, 0, 0, 0 },
 904     visual = "upright_sprite",
 905     textures = {},
 906
 907         on_activate = signs_text_on_activate,
 908 })
 909
 910 -- And the good stuff here! :-)
 911
 912 function signs_lib.register_fence_with_sign(fencename, fencewithsignname)
 913     local def = minetest.registered_nodes[fencename]
 914     local def_sign = minetest.registered_nodes[fencewithsignname]
 915     if not (def and def_sign) then
 916         minetest.log("warning", "[signs_lib] Attempt to register unknown node as fence")
 917         return
 918     end
 919     def = signs_lib.table_copy(def)
 920     def_sign = signs_lib.table_copy(def_sign)
 921     fences_with_sign[fencename] = fencewithsignname
 922
 923     def_sign.on_place = function(itemstack, placer, pointed_thing, ...)
 924                 local node_above = minetest.get_node_or_nil(pointed_thing.above)
 925                 local node_under = minetest.get_node_or_nil(pointed_thing.under)
 926                 local def_above = node_above and minetest.registered_nodes[node_above.name]
 927                 local def_under = node_under and minetest.registered_nodes[node_under.name]
 928                 local fdir = minetest.dir_to_facedir(placer:get_look_dir())
 929                 local playername = placer:get_player_name()
 930
 931                 if minetest.is_protected(pointed_thing.under, playername) then
 932                         minetest.record_protection_violation(pointed_thing.under, playername)
 933                         return itemstack
 934                 end
 935
 936                 if minetest.is_protected(pointed_thing.above, playername) then
 937                         minetest.record_protection_violation(pointed_thing.above, playername)
 938                         return itemstack
 939                 end
 940
 941                 if def_under and def_under.on_rightclick then
 942                         return def_under.on_rightclick(pointed_thing.under, node_under, placer, itemstack) or itemstack
 943                 elseif def_under and def_under.buildable_to then
 944                         minetest.add_node(pointed_thing.under, {name = fencename, param2 = fdir})
 945                         if not signs_lib.expect_infinite_stacks then
 946                                 itemstack:take_item()
 947                         end
 948                         placer:set_wielded_item(itemstack)
 949                 elseif def_above and def_above.buildable_to then
 950                         minetest.add_node(pointed_thing.above, {name = fencename, param2 = fdir})
 951                         if not signs_lib.expect_infinite_stacks then
 952                                 itemstack:take_item()
 953                         end
 954                         placer:set_wielded_item(itemstack)
 955                 end
 956                 return itemstack
 957         end
 958         def_sign.on_construct = function(pos, ...)
 959                 signs_lib.construct_sign(pos)
 960         end
 961         def_sign.on_destruct = function(pos, ...)
 962                 signs_lib.destruct_sign(pos)
 963         end
 964         def_sign.on_receive_fields = function(pos, formname, fields, sender)
 965                 signs_lib.receive_fields(pos, formname, fields, sender)
 966         end
 967         def_sign.on_punch = function(pos, node, puncher, ...)
 968                 signs_lib.update_sign(pos)
 969         end
 970         local fencename = fencename
 971         def_sign.after_dig_node = function(pos, node, ...)
 972             node.name = fencename
 973             minetest.add_node(pos, node)
 974         end
 975     def_sign.drop = default_sign
 976         minetest.register_node(":"..fencename, def)
 977         minetest.register_node(":"..fencewithsignname, def_sign)
 978         table.insert(signs_lib.sign_node_list, fencewithsignname)
 979         minetest.log("verbose", S("Registered %s and %s"):format(fencename, fencewithsignname))
 980 end
 981
 982 build_char_db()
 983
 984 minetest.register_alias("homedecor:fence_wood_with_sign", "signs:sign_post")
 985 minetest.register_alias("sign_wall_locked", "locked_sign:sign_wall_locked")
 986
 987 signs_lib.register_fence_with_sign("default:fence_wood", "signs:sign_post")
 988
 989 -- restore signs' text after /clearobjects and the like, the next time
 990 -- a block is reloaded by the server.
 991
 992 minetest.register_lbm({
 993         nodenames = signs_lib.sign_node_list,
 994         name = "signs_lib:restore_sign_text",
 995         label = "Restore sign text",
 996         run_at_every_load = true,
 997         action = function(pos, node)
 998                 signs_lib.update_sign(pos)
 999         end
1000 })
1001
1002 -- locked sign
1003
1004 minetest.register_craft({
1005         output = "locked_sign:sign_wall_locked",
1006         recipe = {
1007                 {"group:wood", "group:wood", "group:wood"},
1008                 {"group:wood", "group:wood", "default:steel_ingot"},
1009                 {"", "group:stick", ""},
1010         }
1011 })
1012
1013 --Alternate recipe
1014
1015 minetest.register_craft({
1016         output = "locked_sign:sign_wall_locked",
1017         recipe = {
1018                 {default_sign},
1019                 {"default:steel_ingot"},
1020     },
1021 })
1022
1023 -- craft recipes for the metal signs
1024
1025 minetest.register_craft( {
1026         output = "signs:sign_wall_green",
1027         recipe = {
1028                         { "dye:dark_green", "dye:white", "dye:dark_green" },
1029                         { "", default_sign_metal, "" }
1030         },
1031 })
1032
1033 minetest.register_craft( {
1034         output = "signs:sign_wall_green 2",
1035         recipe = {
1036                         { "dye:dark_green", "dye:white", "dye:dark_green" },
1037                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1038         },
1039 })
1040
1041 minetest.register_craft( {
1042         output = "signs:sign_wall_yellow",
1043         recipe = {
1044                         { "dye:yellow", "dye:black", "dye:yellow" },
1045                         { "", default_sign_metal, "" }
1046         },
1047 })
1048
1049 minetest.register_craft( {
1050         output = "signs:sign_wall_yellow 2",
1051         recipe = {
1052                         { "dye:yellow", "dye:black", "dye:yellow" },
1053                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1054         },
1055 })
1056
1057 minetest.register_craft( {
1058         output = "signs:sign_wall_red",
1059         recipe = {
1060                         { "dye:red", "dye:white", "dye:red" },
1061                         { "", default_sign_metal, "" }
1062         },
1063 })
1064
1065 minetest.register_craft( {
1066         output = "signs:sign_wall_red 2",
1067         recipe = {
1068                         { "dye:red", "dye:white", "dye:red" },
1069                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1070         },
1071 })
1072
1073 minetest.register_craft( {
1074         output = "signs:sign_wall_white_red",
1075         recipe = {
1076                         { "dye:white", "dye:red", "dye:white" },
1077                         { "", default_sign_metal, "" }
1078         },
1079 })
1080
1081 minetest.register_craft( {
1082         output = "signs:sign_wall_white_red 2",
1083         recipe = {
1084                         { "dye:white", "dye:red", "dye:white" },
1085                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1086         },
1087 })
1088
1089 minetest.register_craft( {
1090         output = "signs:sign_wall_white_black",
1091         recipe = {
1092                         { "dye:white", "dye:black", "dye:white" },
1093                         { "", default_sign_metal, "" }
1094         },
1095 })
1096
1097 minetest.register_craft( {
1098         output = "signs:sign_wall_white_black 2",
1099         recipe = {
1100                         { "dye:white", "dye:black", "dye:white" },
1101                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1102         },
1103 })
1104
1105 minetest.register_craft( {
1106         output = "signs:sign_wall_orange",
1107         recipe = {
1108                         { "dye:orange", "dye:black", "dye:orange" },
1109                         { "", default_sign_metal, "" }
1110         },
1111 })
1112
1113 minetest.register_craft( {
1114         output = "signs:sign_wall_orange 2",
1115         recipe = {
1116                         { "dye:orange", "dye:black", "dye:orange" },
1117                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1118         },
1119 })
1120
1121 minetest.register_craft( {
1122         output = "signs:sign_wall_blue",
1123         recipe = {
1124                         { "dye:blue", "dye:white", "dye:blue" },
1125                         { "", default_sign_metal, "" }
1126         },
1127 })
1128
1129 minetest.register_craft( {
1130         output = "signs:sign_wall_blue 2",
1131         recipe = {
1132                         { "dye:blue", "dye:white", "dye:blue" },
1133                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1134         },
1135 })
1136
1137 minetest.register_craft( {
1138         output = "signs:sign_wall_brown",
1139         recipe = {
1140                         { "dye:brown", "dye:white", "dye:brown" },
1141                         { "", default_sign_metal, "" }
1142         },
1143 })
1144
1145 minetest.register_craft( {
1146         output = "signs:sign_wall_brown 2",
1147         recipe = {
1148                         { "dye:brown", "dye:white", "dye:brown" },
1149                         { "steel:sheet_metal", "steel:sheet_metal", "steel:sheet_metal" }
1150         },
1151 })
1152
1153 if minetest.setting_get("log_mods") then
1154         minetest.log("action", S("signs loaded"))
1155 end