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function signs.set_formspec(pos)
local meta = minetest.get_meta(pos)
local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
if ndef and ndef.display_entities and ndef.display_entities["signs:text"] then
local maxlines = ndef.display_entities["signs:text"].maxlines
local formspec
if maxlines == 1 then
formspec = "size[6,3]"..
"field[0.5,0.7;5.5,1;display_text;Displayed text;${display_text}]"..
"button_exit[2,2;2,1;ok;Write]"
else
local extralabel = ""
if maxlines then
extralabel = " (first "..maxlines.." lines only)"
end
formspec = "size[6,4]"..
"textarea[0.5,0.7;5.5,2;display_text;Displayed text"..extralabel..";${display_text}]"..
"button_exit[2,3;2,1;ok;Write]"
end
meta:set_string("formspec", formspec)
end
end
function signs.on_receive_fields(pos, formname, fields, player)
if not minetest.is_protected(pos, player:get_player_name()) then
local meta = minetest.get_meta(pos)
if fields and fields.ok then
meta:set_string("display_text", fields.display_text)
meta:set_string("infotext", "\""..fields.display_text.."\"")
display_lib.update_entities(pos)
end
end
end
-- On place callback for direction signs
-- (chooses which sign according to look direction)
function signs.on_place_direction(itemstack, placer, pointed_thing)
local above = pointed_thing.above
local under = pointed_thing.under
local wdir = minetest.dir_to_wallmounted(
{x = under.x - above.x,
y = under.y - above.y,
z = under.z - above.z})
local dir = placer:get_look_dir()
if wdir == 0 or wdir == 1 then
wdir = minetest.dir_to_wallmounted({x=dir.x, y=0, z=dir.z})
end
local name = itemstack:get_name()
-- Only for direction signs (ending with _right)
if name:sub(-string.len("_right")) == "_right" then
name = name:sub(1, -string.len("_right"))
local test = {0, dir.z, -dir.z, -dir.x, dir.x}
if test[wdir] > 0 then
itemstack:set_name(name.."left")
end
itemstack = minetest.item_place(itemstack, placer, pointed_thing, wdir)
itemstack:set_name(name.."right")
return itemstack
else
return minetest.item_place(itemstack, placer, pointed_thing, wdir)
end
end
-- On_rotate (screwdriver) callback for direction signs
function signs.on_rotate_direction(pos, node, user, mode, new_param2)
if mode == screwdriver.ROTATE_AXIS then
local name
if node.name:sub(-string.len("_right")) == "_right" then
name = node.name:sub(1, -string.len("_right")).."left"
end
if node.name:sub(-string.len("_left")) == "_left" then
name = node.name:sub(1, -string.len("_left")).."right"
end
if name then
minetest.swap_node(pos, {name = name, param1 = node.param1, param2 = node.param2})
end
return false
else
return display_lib.on_rotate(pos, node, user, mode, new_param2)
end
end
-- Generic callback for show_formspec displayed formspecs
minetest.register_on_player_receive_fields(function(player, formname, fields)
local found, _, mod, node_name, pos = formname:find("([%w_]+):([%w_]+)@(.+)")
if found then
if mod ~= 'signs' then return end
local ndef = minetest.registered_nodes[mod..":"..node_name]
if ndef and ndef.on_receive_fields then
ndef.on_receive_fields(minetest.string_to_pos(pos), formname, fields, player)
end
end
end)
function signs.register_sign(mod, name, model)
-- Default fields
local fields = {
sunlight_propagates = true,
paramtype = "light",
paramtype2 = "wallmounted",
drawtype = "nodebox",
node_box = {
type = "wallmounted",
wall_side = {-0.5, -model.height/2, -model.width/2,
-0.5 + model.depth, model.height/2, model.width/2},
wall_bottom = {-model.width/2, -0.5, -model.height/2,
model.width/2, -0.5 + model.depth, model.height/2},
wall_top = {-model.width/2, 0.5, -model.height/2,
model.width/2, 0.5 - model.depth, model.height/2},
},
groups = {choppy=2,dig_immediate=2,attached_node=1},
sounds = default.node_sound_defaults(),
display_entities = {
["signs:text"] = {
on_display_update = font_lib.on_display_update,
depth = 0.499 - model.depth,
size = { x = 1, y = 1 },
resolution = { x = 64, y = 64 },
maxlines = 1,
},
},
on_place = display_lib.on_place,
on_construct = function(pos)
signs.set_formspec(pos)
display_lib.on_construct(pos)
end,
on_destruct = display_lib.on_destruct,
on_rotate = display_lib.on_rotate,
on_receive_fields = signs.on_receive_fields,
}
-- Node fields override
for key, value in pairs(model.node_fields) do
fields[key] = value
end
if not fields.wield_image then fields.wield_image = fields.inventory_image end
-- Entity fields override
for key, value in pairs(model.entity_fields) do
fields.display_entities["signs:text"][key] = value
end
minetest.register_node(mod..":"..name, fields)
end
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