forked from VoxeLibre/VoxeLibre
576 lines
17 KiB
Lua
576 lines
17 KiB
Lua
local S = minetest.get_translator("mcl_signs")
|
|
local F = minetest.formspec_escape
|
|
|
|
-- Load the characters map (characters.txt)
|
|
--[[ File format of characters.txt:
|
|
It's an UTF-8 encoded text file that contains metadata for all supported characters. It contains a sequence of info blocks, one for each character. Each info block is made out of 3 lines:
|
|
Line 1: The literal UTF-8 encoded character
|
|
Line 2: Name of the texture file for this character minus the “.png” suffix; found in the “textures/” sub-directory
|
|
Line 3: Currently ignored. Previously this was for the character width in pixels
|
|
|
|
After line 3, another info block may follow. This repeats until the end of the file.
|
|
|
|
All character files must be 5 or 6 pixels wide (5 pixels are preferred)
|
|
]]
|
|
|
|
local chars_file = io.open(minetest.get_modpath("mcl_signs").."/characters.txt", "r")
|
|
-- FIXME: Support more characters (many characters are missing). Currently ASCII and Latin-1 Supplement are supported.
|
|
local charmap = {}
|
|
if not chars_file then
|
|
minetest.log("error", "[mcl_signs] : character map file not found")
|
|
else
|
|
while true do
|
|
local char = chars_file:read("*l")
|
|
if char == nil then
|
|
break
|
|
end
|
|
local img = chars_file:read("*l")
|
|
chars_file:read("*l")
|
|
charmap[char] = img
|
|
end
|
|
end
|
|
|
|
-- CONSTANTS
|
|
local SIGN_WIDTH = 115
|
|
|
|
local LINE_LENGTH = 15
|
|
local NUMBER_OF_LINES = 4
|
|
|
|
local LINE_HEIGHT = 14
|
|
local CHAR_WIDTH = 5
|
|
|
|
|
|
-- Helper functions
|
|
local function round(num, idp)
|
|
local mult = 10^(idp or 0)
|
|
return math.floor(num * mult + 0.5) / mult
|
|
end
|
|
|
|
local string_to_array = function(str)
|
|
local tab = {}
|
|
for i=1,string.len(str) do
|
|
table.insert(tab, string.sub(str, i,i))
|
|
end
|
|
return tab
|
|
end
|
|
|
|
local string_to_line_array = function(str)
|
|
local tab = {}
|
|
local current = 1
|
|
local linechar = 1
|
|
tab[1] = ""
|
|
for _,char in ipairs(string_to_array(str)) do
|
|
-- New line
|
|
if char == "\n" then
|
|
current = current + 1
|
|
tab[current] = ""
|
|
linechar = 1
|
|
else
|
|
tab[current] = tab[current]..char
|
|
linechar = linechar + 1
|
|
end
|
|
end
|
|
return tab
|
|
end
|
|
|
|
local create_lines = function(text)
|
|
local line_num = 1
|
|
local tab = {}
|
|
for _, line in ipairs(string_to_line_array(text)) do
|
|
if line_num > NUMBER_OF_LINES then
|
|
break
|
|
end
|
|
table.insert(tab, line)
|
|
line_num = line_num + 1
|
|
end
|
|
return tab
|
|
end
|
|
|
|
local generate_line = function(s, ypos)
|
|
local i = 1
|
|
local parsed = {}
|
|
local width = 0
|
|
local chars = 0
|
|
local printed_char_width = CHAR_WIDTH + 1
|
|
while chars < LINE_LENGTH and i <= #s do
|
|
local file = nil
|
|
-- Get and render character
|
|
if charmap[s:sub(i, i)] ~= nil then
|
|
file = charmap[s:sub(i, i)]
|
|
i = i + 1
|
|
elseif i < #s and charmap[s:sub(i, i + 1)] ~= nil then
|
|
file = charmap[s:sub(i, i + 1)]
|
|
i = i + 2
|
|
else
|
|
-- No character image found.
|
|
-- Use replacement character:
|
|
file = "_rc"
|
|
i = i + 1
|
|
minetest.log("verbose", "[mcl_signs] Unknown symbol in '"..s.."' at "..i)
|
|
end
|
|
if file ~= nil then
|
|
width = width + printed_char_width
|
|
table.insert(parsed, file)
|
|
chars = chars + 1
|
|
end
|
|
end
|
|
width = width - 1
|
|
|
|
local texture = ""
|
|
local xpos = math.floor((SIGN_WIDTH - width) / 2)
|
|
for i = 1, #parsed do
|
|
texture = texture..":"..xpos..","..ypos.."="..parsed[i]..".png"
|
|
xpos = xpos + printed_char_width
|
|
end
|
|
return texture
|
|
end
|
|
|
|
local generate_texture = function(lines, signnodename)
|
|
local texture = "[combine:"..SIGN_WIDTH.."x"..SIGN_WIDTH
|
|
local ypos
|
|
if signnodename == "mcl_signs:wall_sign" then
|
|
ypos = 30
|
|
else
|
|
ypos = 0
|
|
end
|
|
for i = 1, #lines do
|
|
texture = texture..generate_line(lines[i], ypos)
|
|
ypos = ypos + LINE_HEIGHT
|
|
end
|
|
return texture
|
|
end
|
|
|
|
local n = 23/56 - 1/128
|
|
|
|
local signtext_info_wall = {
|
|
{delta = {x = 0, y = 0, z = n}, yaw = 0},
|
|
{delta = {x = n, y = 0, z = 0}, yaw = math.pi / -2},
|
|
{delta = {x = 0, y = 0, z = -n}, yaw = math.pi},
|
|
{delta = {x = -n, y = 0, z = 0}, yaw = math.pi / 2},
|
|
}
|
|
|
|
local signtext_info_standing = {}
|
|
|
|
local m = -1/16 + 1/64
|
|
for rot=0, 15 do
|
|
local yaw = math.pi*2 - (((math.pi*2) / 16) * rot)
|
|
local delta = vector.multiply(minetest.yaw_to_dir(yaw), m)
|
|
-- Offset because sign is a bit above node boundaries
|
|
delta.y = delta.y + 2/28
|
|
table.insert(signtext_info_standing, { delta = delta, yaw = yaw })
|
|
end
|
|
|
|
local function get_rotation_level(facedir, nodename)
|
|
local rl = facedir * 4
|
|
if nodename == "mcl_signs:standing_sign22_5" then
|
|
rl = rl + 1
|
|
elseif nodename == "mcl_signs:standing_sign45" then
|
|
rl = rl + 2
|
|
elseif nodename == "mcl_signs:standing_sign67_5" then
|
|
rl = rl + 3
|
|
end
|
|
return rl
|
|
end
|
|
|
|
local function get_wall_signtext_info(param2, nodename)
|
|
local dir = minetest.wallmounted_to_dir(param2)
|
|
if dir.x > 0 then
|
|
return 2
|
|
elseif dir.z > 0 then
|
|
return 1
|
|
elseif dir.x < 0 then
|
|
return 4
|
|
else
|
|
return 3
|
|
end
|
|
end
|
|
|
|
local sign_groups = {handy=1,axey=1, flammable=1, deco_block=1, material_wood=1, attached_node=1, dig_by_piston=1, flammable=-1}
|
|
|
|
local destruct_sign = function(pos)
|
|
local objects = minetest.get_objects_inside_radius(pos, 0.5)
|
|
for _, v in ipairs(objects) do
|
|
local ent = v:get_luaentity()
|
|
if ent and ent.name == "mcl_signs:text" then
|
|
v:remove()
|
|
end
|
|
end
|
|
local players = minetest.get_connected_players()
|
|
for p=1, #players do
|
|
if vector.distance(players[p]:get_pos(), pos) <= 30 then
|
|
minetest.close_formspec(players[p]:get_player_name(), "mcl_signs:set_text_"..pos.x.."_"..pos.y.."_"..pos.z)
|
|
end
|
|
end
|
|
end
|
|
|
|
local update_sign = function(pos, fields, sender, force_remove)
|
|
local meta = minetest.get_meta(pos)
|
|
if not meta then
|
|
return
|
|
end
|
|
local text = meta:get_string("text")
|
|
if fields and (text == "" and fields.text) then
|
|
meta:set_string("text", fields.text)
|
|
text = fields.text
|
|
end
|
|
if text == nil then
|
|
text = ""
|
|
end
|
|
|
|
local sign_info
|
|
local n = minetest.get_node(pos)
|
|
local nn = n.name
|
|
if nn == "mcl_signs:standing_sign" or nn == "mcl_signs:standing_sign22_5" or nn == "mcl_signs:standing_sign45" or nn == "mcl_signs:standing_sign67_5" then
|
|
sign_info = signtext_info_standing[get_rotation_level(n.param2, nn) + 1]
|
|
elseif nn == "mcl_signs:wall_sign" then
|
|
sign_info = signtext_info_wall[get_wall_signtext_info(n.param2)]
|
|
end
|
|
if sign_info == nil then
|
|
minetest.log("error", "[mcl_signs] Missing sign_info!")
|
|
return
|
|
end
|
|
|
|
local objects = minetest.get_objects_inside_radius(pos, 0.5)
|
|
local text_entity
|
|
for _, v in ipairs(objects) do
|
|
local ent = v:get_luaentity()
|
|
if ent and ent.name == "mcl_signs:text" then
|
|
if force_remove then
|
|
v:remove()
|
|
else
|
|
text_entity = v
|
|
break
|
|
end
|
|
end
|
|
end
|
|
|
|
if not text_entity then
|
|
text_entity = minetest.add_entity({
|
|
x = pos.x + sign_info.delta.x,
|
|
y = pos.y + sign_info.delta.y,
|
|
z = pos.z + sign_info.delta.z}, "mcl_signs:text")
|
|
end
|
|
text_entity:get_luaentity()._signnodename = nn
|
|
text_entity:set_properties({textures={generate_texture(create_lines(text), nn)}})
|
|
|
|
text_entity:set_yaw(sign_info.yaw)
|
|
end
|
|
|
|
local show_formspec = function(player, pos)
|
|
minetest.show_formspec(
|
|
player:get_player_name(),
|
|
"mcl_signs:set_text_"..pos.x.."_"..pos.y.."_"..pos.z,
|
|
"size[6,3]textarea[0.25,0.25;6,1.5;text;"..F(S("Enter sign text:"))..";]label[0,1.5;"..F(S("Maximum line length: 15")).."\n"..F(S("Maximum lines: 4")).."]button_exit[0,2.5;6,1;submit;"..F(S("Done")).."]"
|
|
)
|
|
end
|
|
|
|
minetest.register_on_player_receive_fields(function(player, formname, fields)
|
|
if formname:find("mcl_signs:set_text_") == 1 then
|
|
local x, y, z = formname:match("mcl_signs:set_text_(.-)_(.-)_(.*)")
|
|
local pos = {x=tonumber(x), y=tonumber(y), z=tonumber(z)}
|
|
if not pos or not pos.x or not pos.y or not pos.z then return end
|
|
update_sign(pos, fields, player)
|
|
end
|
|
end)
|
|
|
|
local node_sounds
|
|
if minetest.get_modpath("mcl_sounds") then
|
|
node_sounds = mcl_sounds.node_sound_wood_defaults()
|
|
end
|
|
|
|
minetest.register_node("mcl_signs:wall_sign", {
|
|
description = S("Sign"),
|
|
_tt_help = S("Can be written"),
|
|
_doc_items_longdesc = S("Signs can be written and come in two variants: Wall sign and sign on a sign post. Signs can be placed on the top and the sides of other blocks, but not below them."),
|
|
_doc_items_usagehelp = S("After placing the sign, you can write something on it. You have 4 lines of text with up to 15 characters for each line; anything beyond these limits is lost. Not all characters are supported. The text can not be changed once it has been written; you have to break and place the sign again."),
|
|
inventory_image = "default_sign.png",
|
|
walkable = false,
|
|
is_ground_content = false,
|
|
wield_image = "default_sign.png",
|
|
node_placement_prediction = "",
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
paramtype2 = "wallmounted",
|
|
drawtype = "mesh",
|
|
mesh = "mcl_signs_signonwallmount.obj",
|
|
selection_box = {type = "wallmounted", wall_side = {-0.5, -7/28, -0.5, -23/56, 7/28, 0.5}},
|
|
tiles = {"mcl_signs_sign.png"},
|
|
use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or false,
|
|
groups = sign_groups,
|
|
stack_max = 16,
|
|
sounds = node_sounds,
|
|
|
|
on_place = function(itemstack, placer, pointed_thing)
|
|
local above = pointed_thing.above
|
|
local under = pointed_thing.under
|
|
|
|
-- Use pointed node's on_rightclick function first, if present
|
|
local node_under = minetest.get_node(under)
|
|
if placer and not placer:get_player_control().sneak then
|
|
if minetest.registered_nodes[node_under.name] and minetest.registered_nodes[node_under.name].on_rightclick then
|
|
return minetest.registered_nodes[node_under.name].on_rightclick(under, node_under, placer, itemstack) or itemstack
|
|
end
|
|
end
|
|
|
|
local dir = vector.subtract(under, above)
|
|
|
|
-- Only build when it's legal
|
|
local abovenodedef = minetest.registered_nodes[minetest.get_node(above).name]
|
|
if not abovenodedef or abovenodedef.buildable_to == false then
|
|
return itemstack
|
|
end
|
|
|
|
local wdir = minetest.dir_to_wallmounted(dir)
|
|
|
|
local placer_pos = placer:get_pos()
|
|
|
|
local fdir = minetest.dir_to_facedir(dir)
|
|
|
|
local sign_info
|
|
local nodeitem = ItemStack(itemstack)
|
|
-- Ceiling
|
|
if wdir == 0 then
|
|
--how would you add sign to ceiling?
|
|
return itemstack
|
|
-- Floor
|
|
elseif wdir == 1 then
|
|
-- Standing sign
|
|
|
|
-- Determine the sign rotation based on player's yaw
|
|
local yaw = math.pi*2 - placer:get_look_horizontal()
|
|
|
|
-- Select one of 16 possible rotations (0-15)
|
|
local rotation_level = round((yaw / (math.pi*2)) * 16)
|
|
|
|
if rotation_level > 15 then
|
|
rotation_level = 0
|
|
elseif rotation_level < 0 then
|
|
rotation_level = 15
|
|
end
|
|
|
|
-- The actual rotation is a combination of predefined mesh and facedir (see node definition)
|
|
if rotation_level % 4 == 0 then
|
|
nodeitem:set_name("mcl_signs:standing_sign")
|
|
elseif rotation_level % 4 == 1 then
|
|
nodeitem:set_name("mcl_signs:standing_sign22_5")
|
|
elseif rotation_level % 4 == 2 then
|
|
nodeitem:set_name("mcl_signs:standing_sign45")
|
|
elseif rotation_level % 4 == 3 then
|
|
nodeitem:set_name("mcl_signs:standing_sign67_5")
|
|
end
|
|
fdir = math.floor(rotation_level / 4)
|
|
|
|
-- Place the node!
|
|
local _, success = minetest.item_place_node(nodeitem, placer, pointed_thing, fdir)
|
|
if not success then
|
|
return itemstack
|
|
end
|
|
if not minetest.is_creative_enabled(placer:get_player_name()) then
|
|
itemstack:take_item()
|
|
end
|
|
sign_info = signtext_info_standing[rotation_level + 1]
|
|
-- Side
|
|
else
|
|
-- Wall sign
|
|
local _, success = minetest.item_place_node(itemstack, placer, pointed_thing, wdir)
|
|
if not success then
|
|
return itemstack
|
|
end
|
|
sign_info = signtext_info_wall[fdir + 1]
|
|
end
|
|
|
|
-- Determine spawn position of entity
|
|
local place_pos
|
|
if minetest.registered_nodes[node_under.name].buildable_to then
|
|
place_pos = under
|
|
else
|
|
place_pos = above
|
|
end
|
|
|
|
local text_entity = minetest.add_entity({
|
|
x = place_pos.x + sign_info.delta.x,
|
|
y = place_pos.y + sign_info.delta.y,
|
|
z = place_pos.z + sign_info.delta.z}, "mcl_signs:text")
|
|
text_entity:set_yaw(sign_info.yaw)
|
|
text_entity:get_luaentity()._signnodename = nodeitem:get_name()
|
|
|
|
minetest.sound_play({name="default_place_node_hard", gain=1.0}, {pos = place_pos}, true)
|
|
|
|
show_formspec(placer, place_pos)
|
|
return itemstack
|
|
end,
|
|
on_destruct = destruct_sign,
|
|
on_punch = function(pos, node, puncher)
|
|
update_sign(pos)
|
|
end,
|
|
on_rotate = function(pos, node, user, mode)
|
|
if mode == screwdriver.ROTATE_FACE then
|
|
local r = screwdriver.rotate.wallmounted(pos, node, mode)
|
|
node.param2 = r
|
|
minetest.swap_node(pos, node)
|
|
update_sign(pos, nil, nil, true)
|
|
return true
|
|
else
|
|
return false
|
|
end
|
|
end,
|
|
_mcl_hardness = 1,
|
|
_mcl_blast_resistance = 1,
|
|
})
|
|
|
|
-- Standing sign nodes.
|
|
-- 4 rotations at 0°, 22.5°, 45° and 67.5°.
|
|
-- These are 4 out of 16 possible rotations.
|
|
-- With facedir the remaining 12 rotations are constructed.
|
|
|
|
-- 0°
|
|
local ssign = {
|
|
paramtype = "light",
|
|
use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or false,
|
|
sunlight_propagates = true,
|
|
walkable = false,
|
|
is_ground_content = false,
|
|
paramtype2 = "facedir",
|
|
drawtype = "mesh",
|
|
mesh = "mcl_signs_sign.obj",
|
|
selection_box = {type = "fixed", fixed = {-0.2, -0.5, -0.2, 0.2, 0.5, 0.2}},
|
|
tiles = {"mcl_signs_sign.png"},
|
|
groups = sign_groups,
|
|
drop = "mcl_signs:wall_sign",
|
|
stack_max = 16,
|
|
sounds = node_sounds,
|
|
|
|
on_destruct = destruct_sign,
|
|
on_punch = function(pos, node, puncher)
|
|
update_sign(pos)
|
|
end,
|
|
on_rotate = function(pos, node, user, mode)
|
|
if mode == screwdriver.ROTATE_FACE then
|
|
node.name = "mcl_signs:standing_sign22_5"
|
|
minetest.swap_node(pos, node)
|
|
elseif mode == screwdriver.ROTATE_AXIS then
|
|
return false
|
|
end
|
|
update_sign(pos, nil, nil, true)
|
|
return true
|
|
end,
|
|
|
|
_mcl_hardness = 1,
|
|
_mcl_blast_resistance = 1,
|
|
}
|
|
|
|
minetest.register_node("mcl_signs:standing_sign", ssign)
|
|
|
|
-- 22.5°
|
|
local ssign22_5 = table.copy(ssign)
|
|
ssign22_5.mesh = "mcl_signs_sign22.5.obj"
|
|
ssign22_5.on_rotate = function(pos, node, user, mode)
|
|
if mode == screwdriver.ROTATE_FACE then
|
|
node.name = "mcl_signs:standing_sign45"
|
|
minetest.swap_node(pos, node)
|
|
elseif mode == screwdriver.ROTATE_AXIS then
|
|
return false
|
|
end
|
|
update_sign(pos, nil, nil, true)
|
|
return true
|
|
end
|
|
minetest.register_node("mcl_signs:standing_sign22_5", ssign22_5)
|
|
|
|
-- 45°
|
|
local ssign45 = table.copy(ssign)
|
|
ssign45.mesh = "mcl_signs_sign45.obj"
|
|
ssign45.on_rotate = function(pos, node, user, mode)
|
|
if mode == screwdriver.ROTATE_FACE then
|
|
node.name = "mcl_signs:standing_sign67_5"
|
|
minetest.swap_node(pos, node)
|
|
elseif mode == screwdriver.ROTATE_AXIS then
|
|
return false
|
|
end
|
|
update_sign(pos, nil, nil, true)
|
|
return true
|
|
end
|
|
minetest.register_node("mcl_signs:standing_sign45", ssign45)
|
|
|
|
-- 67.5°
|
|
local ssign67_5 = table.copy(ssign)
|
|
ssign67_5.mesh = "mcl_signs_sign67.5.obj"
|
|
ssign67_5.on_rotate = function(pos, node, user, mode)
|
|
if mode == screwdriver.ROTATE_FACE then
|
|
node.name = "mcl_signs:standing_sign"
|
|
node.param2 = (node.param2 + 1) % 4
|
|
minetest.swap_node(pos, node)
|
|
elseif mode == screwdriver.ROTATE_AXIS then
|
|
return false
|
|
end
|
|
update_sign(pos, nil, nil, true)
|
|
return true
|
|
end
|
|
minetest.register_node("mcl_signs:standing_sign67_5", ssign67_5)
|
|
|
|
-- FIXME: Prevent entity destruction by /clearobjects
|
|
minetest.register_entity("mcl_signs:text", {
|
|
pointable = false,
|
|
visual = "upright_sprite",
|
|
textures = {},
|
|
physical = false,
|
|
collide_with_objects = false,
|
|
|
|
_signnodename = nil, -- node name of sign node to which the text belongs
|
|
|
|
on_activate = function(self, staticdata)
|
|
if staticdata ~= nil and staticdata ~= "" then
|
|
local des = minetest.deserialize(staticdata)
|
|
if des then
|
|
self._signnodename = des._signnodename
|
|
end
|
|
end
|
|
local meta = minetest.get_meta(self.object:get_pos())
|
|
local text = meta:get_string("text")
|
|
self.object:set_properties({
|
|
textures={generate_texture(create_lines(text), self._signnodename)},
|
|
})
|
|
self.object:set_armor_groups({ immortal = 1 })
|
|
end,
|
|
get_staticdata = function(self)
|
|
local out = { _signnodename = self._signnodename }
|
|
return minetest.serialize(out)
|
|
end,
|
|
})
|
|
|
|
minetest.register_craft({
|
|
type = "fuel",
|
|
recipe = "mcl_signs:wall_sign",
|
|
burntime = 10,
|
|
})
|
|
|
|
if minetest.get_modpath("mcl_core") then
|
|
minetest.register_craft({
|
|
output = 'mcl_signs:wall_sign 3',
|
|
recipe = {
|
|
{'group:wood', 'group:wood', 'group:wood'},
|
|
{'group:wood', 'group:wood', 'group:wood'},
|
|
{'', 'mcl_core:stick', ''},
|
|
}
|
|
})
|
|
end
|
|
|
|
if minetest.get_modpath("doc") then
|
|
doc.add_entry_alias("nodes", "mcl_signs:wall_sign", "nodes", "mcl_signs:standing_sign")
|
|
doc.add_entry_alias("nodes", "mcl_signs:wall_sign", "nodes", "mcl_signs:standing_sign22_5")
|
|
doc.add_entry_alias("nodes", "mcl_signs:wall_sign", "nodes", "mcl_signs:standing_sign45")
|
|
doc.add_entry_alias("nodes", "mcl_signs:wall_sign", "nodes", "mcl_signs:standing_sign67_5")
|
|
end
|
|
|
|
minetest.register_alias("signs:sign_wall", "mcl_signs:wall_sign")
|
|
minetest.register_alias("signs:sign_yard", "mcl_signs:standing_sign")
|
|
|
|
minetest.register_lbm({
|
|
name = "mcl_signs:respawn_entities",
|
|
label = "Respawn sign text entities",
|
|
run_at_every_load = true,
|
|
nodenames = { "mcl_signs:wall_sign", "mcl_signs:standing_sign", "mcl_signs:standing_sign22_5", "mcl_signs:standing_sign45", "mcl_signs:standing_sign67_5" },
|
|
action = function(pos, node)
|
|
update_sign(pos)
|
|
end,
|
|
})
|