301 lines
8.4 KiB
Lua
301 lines
8.4 KiB
Lua
-- Font: 04.jp.org
|
|
|
|
-- load characters map
|
|
local chars_file = io.open(minetest.get_modpath("signs").."/characters", "r")
|
|
local charmap = {}
|
|
local max_chars = 16
|
|
if not chars_file then
|
|
print("[signs] E: 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
|
|
|
|
local signs = {
|
|
{delta = {x = 0, y = 0, z = 0.399}, yaw = 0},
|
|
{delta = {x = 0.399, y = 0, z = 0}, yaw = math.pi / -2},
|
|
{delta = {x = 0, y = 0, z = -0.399}, yaw = math.pi},
|
|
{delta = {x = -0.399, y = 0, z = 0}, yaw = math.pi / 2},
|
|
}
|
|
|
|
local signs_yard = {
|
|
{delta = {x = 0, y = 0, z = -0.05}, yaw = 0},
|
|
{delta = {x = -0.05, y = 0, z = 0}, yaw = math.pi / -2},
|
|
{delta = {x = 0, y = 0, z = 0.05}, yaw = math.pi},
|
|
{delta = {x = 0.05, y = 0, z = 0}, yaw = math.pi / 2},
|
|
}
|
|
|
|
local sign_groups = {choppy=2, dig_immediate=2}
|
|
|
|
local construct_sign = function(pos)
|
|
local meta = minetest.env:get_meta(pos)
|
|
meta:set_string("formspec", "field[text;;${text}]")
|
|
meta:set_string("infotext", "")
|
|
end
|
|
|
|
local destruct_sign = function(pos)
|
|
local objects = minetest.env:get_objects_inside_radius(pos, 0.5)
|
|
for _, v in ipairs(objects) do
|
|
if v:get_entity_name() == "signs:text" then
|
|
v:remove()
|
|
end
|
|
end
|
|
end
|
|
|
|
local update_sign = function(pos, fields)
|
|
local meta = minetest.env:get_meta(pos)
|
|
meta:set_string("infotext", "")
|
|
if fields then
|
|
meta:set_string("text", fields.text)
|
|
end
|
|
local text = meta:get_string("text")
|
|
local objects = minetest.env:get_objects_inside_radius(pos, 0.5)
|
|
for _, v in ipairs(objects) do
|
|
if v:get_entity_name() == "signs:text" then
|
|
v:set_properties({textures={generate_texture(create_lines(text))}})
|
|
return
|
|
end
|
|
end
|
|
|
|
-- if there is no entity
|
|
local sign_info
|
|
if minetest.env:get_node(pos).name == "signs:sign_yard" then
|
|
sign_info = signs_yard[minetest.env:get_node(pos).param2 + 1]
|
|
elseif minetest.env:get_node(pos).name == "default:sign_wall" then
|
|
sign_info = signs[minetest.env:get_node(pos).param2 + 1]
|
|
end
|
|
if sign_info == nil then
|
|
return
|
|
end
|
|
local text = minetest.env:add_entity({x = pos.x + sign_info.delta.x,
|
|
y = pos.y + sign_info.delta.y,
|
|
z = pos.z + sign_info.delta.z}, "signs:text")
|
|
text:setyaw(sign_info.yaw)
|
|
end
|
|
|
|
minetest.register_node(":default:sign_wall", {
|
|
description = "Sign",
|
|
inventory_image = "default_sign_wall.png",
|
|
wield_image = "default_sign_wall.png",
|
|
node_placement_prediction = "",
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
paramtype2 = "facedir",
|
|
drawtype = "nodebox",
|
|
node_box = {type = "fixed", fixed = {-0.45, -0.15, 0.4, 0.45, 0.45, 0.498}},
|
|
selection_box = {type = "fixed", fixed = {-0.45, -0.15, 0.4, 0.45, 0.45, 0.498}},
|
|
tiles = {"signs_top.png", "signs_bottom.png", "signs_side.png", "signs_side.png", "signs_back.png", "signs_front.png"},
|
|
groups = sign_groups,
|
|
|
|
on_place = function(itemstack, placer, pointed_thing)
|
|
local above = pointed_thing.above
|
|
local under = pointed_thing.under
|
|
local dir = {x = under.x - above.x,
|
|
y = under.y - above.y,
|
|
z = under.z - above.z}
|
|
|
|
local wdir = minetest.dir_to_wallmounted(dir)
|
|
|
|
local placer_pos = placer:getpos()
|
|
if placer_pos then
|
|
dir = {
|
|
x = above.x - placer_pos.x,
|
|
y = above.y - placer_pos.y,
|
|
z = above.z - placer_pos.z
|
|
}
|
|
end
|
|
|
|
local fdir = minetest.dir_to_facedir(dir)
|
|
|
|
local sign_info
|
|
if wdir == 0 then
|
|
--how would you add sign to ceiling?
|
|
minetest.env:add_item(above, "default:sign_wall")
|
|
itemstack:take_item()
|
|
return itemstack
|
|
elseif wdir == 1 then
|
|
minetest.env:add_node(above, {name = "signs:sign_yard", param2 = fdir})
|
|
sign_info = signs_yard[fdir + 1]
|
|
else
|
|
minetest.env:add_node(above, {name = "default:sign_wall", param2 = fdir})
|
|
sign_info = signs[fdir + 1]
|
|
end
|
|
|
|
local text = minetest.env:add_entity({x = above.x + sign_info.delta.x,
|
|
y = above.y + sign_info.delta.y,
|
|
z = above.z + sign_info.delta.z}, "signs:text")
|
|
text:setyaw(sign_info.yaw)
|
|
|
|
itemstack:take_item()
|
|
return itemstack
|
|
end,
|
|
on_construct = function(pos)
|
|
construct_sign(pos)
|
|
end,
|
|
on_destruct = function(pos)
|
|
destruct_sign(pos)
|
|
end,
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
|
update_sign(pos, fields)
|
|
end,
|
|
on_punch = function(pos, node, puncher)
|
|
update_sign(pos)
|
|
end,
|
|
})
|
|
|
|
minetest.register_node("signs:sign_yard", {
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
paramtype2 = "facedir",
|
|
drawtype = "nodebox",
|
|
node_box = {type = "fixed", fixed = {
|
|
{-0.45, -0.15, -0.049, 0.45, 0.45, 0.049},
|
|
{-0.05, -0.5, -0.049, 0.05, -0.15, 0.049}
|
|
}},
|
|
selection_box = {type = "fixed", fixed = {-0.45, -0.15, -0.049, 0.45, 0.45, 0.049}},
|
|
tiles = {"signs_top.png", "signs_bottom.png", "signs_side.png", "signs_side.png", "signs_back.png", "signs_front.png"},
|
|
groups = {choppy=2, dig_immediate=2},
|
|
drop = "default:sign_wall",
|
|
|
|
on_construct = function(pos)
|
|
construct_sign(pos)
|
|
end,
|
|
on_destruct = function(pos)
|
|
destruct_sign(pos)
|
|
end,
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
|
update_sign(pos, fields)
|
|
end,
|
|
on_punch = function(pos, node, puncher)
|
|
update_sign(pos)
|
|
end,
|
|
})
|
|
|
|
minetest.register_entity("signs:text", {
|
|
collisionbox = { 0, 0, 0, 0, 0, 0 },
|
|
visual = "upright_sprite",
|
|
textures = {},
|
|
|
|
on_activate = function(self)
|
|
local meta = minetest.env:get_meta(self.object:getpos())
|
|
local text = meta:get_string("text")
|
|
self.object:set_properties({textures={generate_texture(create_lines(text))}})
|
|
end
|
|
})
|
|
|
|
-- CONSTANTS
|
|
local SIGN_WITH = 110
|
|
local SIGN_PADDING = 8
|
|
|
|
local LINE_LENGTH = 16
|
|
local NUMBER_OF_LINES = 4
|
|
|
|
local LINE_HEIGHT = 14
|
|
local CHAR_WIDTH = 5
|
|
|
|
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
|
|
|
|
string_to_word_array = function(str)
|
|
local tab = {}
|
|
local current = 1
|
|
tab[1] = ""
|
|
for _,char in ipairs(string_to_array(str)) do
|
|
if char ~= " " then
|
|
tab[current] = tab[current]..char
|
|
else
|
|
current = current+1
|
|
tab[current] = ""
|
|
end
|
|
end
|
|
return tab
|
|
end
|
|
|
|
create_lines = function(text)
|
|
local line = ""
|
|
local line_num = 1
|
|
local tab = {}
|
|
for _,word in ipairs(string_to_word_array(text)) do
|
|
if string.len(line)+string.len(word) < LINE_LENGTH and word ~= "|" then
|
|
if line ~= "" then
|
|
line = line.." "..word
|
|
else
|
|
line = word
|
|
end
|
|
else
|
|
table.insert(tab, line)
|
|
if word ~= "|" then
|
|
line = word
|
|
else
|
|
line = ""
|
|
end
|
|
line_num = line_num+1
|
|
if line_num > NUMBER_OF_LINES then
|
|
return tab
|
|
end
|
|
end
|
|
end
|
|
table.insert(tab, line)
|
|
return tab
|
|
end
|
|
|
|
generate_texture = function(lines)
|
|
local texture = "[combine:"..SIGN_WITH.."x"..SIGN_WITH
|
|
local ypos = 12
|
|
for i = 1, #lines do
|
|
texture = texture..generate_line(lines[i], ypos)
|
|
ypos = ypos + LINE_HEIGHT
|
|
end
|
|
return texture
|
|
end
|
|
|
|
generate_line = function(s, ypos)
|
|
local i = 1
|
|
local parsed = {}
|
|
local width = 0
|
|
local chars = 0
|
|
while chars < max_chars and i <= #s do
|
|
local file = nil
|
|
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
|
|
print("[signs] W: unknown symbol in '"..s.."' at "..i.." (probably "..s:sub(i, i)..")")
|
|
i = i + 1
|
|
end
|
|
if file ~= nil then
|
|
width = width + CHAR_WIDTH
|
|
table.insert(parsed, file)
|
|
chars = chars + 1
|
|
end
|
|
end
|
|
width = width - 1
|
|
|
|
local texture = ""
|
|
local xpos = math.floor((SIGN_WITH - 2 * SIGN_PADDING - width) / 2 + SIGN_PADDING)
|
|
for i = 1, #parsed do
|
|
texture = texture..":"..xpos..","..ypos.."="..parsed[i]..".png"
|
|
xpos = xpos + CHAR_WIDTH + 1
|
|
end
|
|
return texture
|
|
end
|
|
|
|
if minetest.setting_get("log_mods") then
|
|
minetest.log("action", "signs loaded")
|
|
end
|