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