add signs

mods/fl_signs/init.lua

@@ -0,0 +1,168 @@
+minetest.register_entity("fl_signs:text", {
+    initial_properties = {
+        visual = "upright_sprite",
+        textures = {"[combine:16x16"},
+        static_save = true,
+        collisionbox = {-0.5, -0.5, -0.01, 0.5, 0.5, 0.01},
+        selectionbox = {0,0,0,0,0,0},
+    },
+    get_staticdata = function(self)
+        local tmp = {memory = self.memory}
+        return minetest.serialize(tmp)
+    end,
+    on_activate = function(self, staticdata, dtime_s)
+        local sdata = minetest.deserialize(staticdata)
+        if sdata then
+            for k,v in pairs(sdata) do
+                self[k] = v
+            end
+        end
+        if not self.memory then self.memory = {} end
+        if self.memory.textures then self.object:set_properties({textures = {self.memory.textures}}) end
+    end,
+})
+
+local NCalphabelt = "0123456789.:,;(*!?}^)#${%^&_+@"
+local Ualphabelt = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+local Lalphabelt = string.lower(Ualphabelt)
+local location = {}
+location[" "] = "27,0"
+
+for i = 1, #NCalphabelt do
+    local c = NCalphabelt:sub(i,i)
+    -- do something with c
+    location[c] = i-1 .. ",2"
+end
+
+for i = 1, #Ualphabelt do
+    local c = Ualphabelt:sub(i,i)
+    -- do something with c
+    location[c] = i-1 .. ",1"
+end
+
+for i = 1, #Lalphabelt do
+    local c = Lalphabelt:sub(i,i)
+    -- do something with c
+    location[c] = i-1 .. ",0"
+end
+
+local function create_text_ent(pos, param, rot)
+    local ent = minetest.add_entity(pos, "fl_signs:text")
+    local texture = "[combine:256x256"
+    local text_table = param:split(" ")
+    local max_length = 23 --defined to limit words to sign, max: 256x256 28 --128x128 is 14
+    local line_length = 3 --starting 4 chars in
+    local line_number = 54 --start at line 4
+    for _, word in pairs(text_table) do
+        if #word+line_length > max_length and #word < max_length then
+            line_number = line_number+18
+            line_length = 3
+        end
+        if line_number >= 198 then break end--line_number = 260 end
+        for i = 1, #word do
+            local c = word:sub(i,i)
+            local loc = location[c]
+            if not loc then loc = location[" "] end
+            texture = texture .. ":".. line_length*9 ..","..line_number.."=font_1.png\\^[sheet\\:28x3\\:" .. loc
+            line_length = line_length+1
+        end
+        texture = texture .. ":".. line_length*9 ..","..line_number.."=font_1.png\\^[sheet\\:28x3\\:" .. location[" "]
+        line_length = line_length+1
+    end
+    ent:set_properties({textures = {texture}})
+    ent:get_luaentity().memory.textures = texture
+    ent:set_yaw(rot)
+end
+
+local offsets = {
+    [2] = {
+        rot = 90*(math.pi/180),
+        pos = vector.new(0.425,0,0),
+    },
+    [3] = {
+        rot = 90*(math.pi/180),
+        pos = vector.new(-0.425,0,0),
+    },
+    [4] = {
+        rot = 0,
+        pos = vector.new(0,0,0.425),
+    },
+    [5] = {
+        rot = 0,
+        pos = vector.new(0,0,-0.425),
+    },
+}
+
+minetest.register_node("fl_signs:sign_wood", {
+    description = "wood sign",
+    inventory_image = "farlands_sign_wood_inv.png",
+    wield_image = "farlands_sign_wood_inv.png",
+    tiles = {"farlands_sign_wood.png"},
+    drawtype = "nodebox",
+    paramtype = "light",
+    paramtype2 = "wallmounted",
+    sunlight_propagates = true,
+    node_box = {
+        type = "wallmounted",
+        wall_side = {-0.5, -0.3125, -0.4375, -0.4375, 0.3125, 0.4375},
+        wall_top = {-0.5, -0.3125, -0.4375, -0.4375, 0.3125, 0.4375},
+        wall_bottom = {-0.5, -0.3125, -0.4375, -0.4375, 0.3125, 0.4375},
+    },
+    on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
+        local text = minetest.get_meta(pos):get("text") or ""
+        local formspec = {
+            "formspec_version[4]",
+            "size[10.4,5.25]",
+            "no_prepend[]",
+            "style_type[box;colors=#77777710,#77777710,#777,#777]",
+            "style_type[list;size=1;spacing=0.1]",
+            "listcolors[#0000;#ffffff20]",
+            "bgcolor[black;neither]",
+            "background9[0,0;10.4,5.25;i3_bg_full.png;false;10]",
+            "textarea[0.5,0.5;9.4,3;" .. "Pos: " .. minetest.pos_to_string(pos, 2) .. ";;" .. text .. "]",
+            "field_close_on_enter[test;false]",
+            "button[4.2,4;2,0.75;enter;Write]",
+        }
+        minetest.show_formspec(clicker:get_player_name(), "fl_signs:sign_wood", table.concat(formspec, ""))
+    end,
+    on_place = function(itemstack, placer, pointed_thing)
+        if pointed_thing.type ~= "node" then return itemstack end
+        if pointed_thing.under.y+1 == pointed_thing.above.y then return itemstack end
+        return minetest.item_place(itemstack, placer, pointed_thing)
+    end,
+    groups = {sign = 1, dig_generic = 4}
+})
+
+minetest.register_on_player_receive_fields(function(player, formname, fields)
+    if formname ~= "fl_signs:sign_wood" then return end
+    --minetest.chat_send_all(dump(fields))
+    local text = {}
+    if fields.enter then
+        for key, data in pairs(fields) do
+            if key:find("Pos: ") then
+                text = {key, data}
+            end
+        end
+    end
+    if fields.enter and text then
+        local split = text[1]:split(" ")
+        local pos = minetest.string_to_pos(split[2])
+        local node = minetest.get_node_or_nil(pos)
+        if not node then return end
+        if not offsets[node.param2] then return end
+        minetest.get_meta(pos):set_string("text", text[2])
+        local ents = minetest.get_objects_inside_radius(pos, 0.5)
+
+        for _, ent in pairs(ents) do
+            local entn = ent:get_luaentity().name
+            if entn == "fl_signs:text" then
+                ent:remove()
+            end
+        end
+
+        pos = vector.add(pos, offsets[node.param2].pos)
+        create_text_ent(pos, text[2], offsets[node.param2].rot)
+    end
+
+    --minetest.chat_send_all(dump(minetest.get_position_from_hash()))
+end)

mods/fl_signs/readme.txt

@@ -0,0 +1,3 @@
+font
+license: Public Domain
+link: https://www.fontspace.com/fifaks-font-f67877