mirror of
https://github.com/minetest-mods/digilines.git
synced 2025-06-30 07:20:29 +02:00
Convert digilines to a mod (not modpack). (#32)
Digilines is probably used by most people in its entirety. I've retained the ability to disable inventory, rtc, lightsensor and LCD by the minetest settings "diglines_enable_rtc" etc.. If set to "false", these components will not be loaded. It is assumed by default that these are enabled. In the conversion the digilines_lcd:lcd node was renamed to digilines:lcd (same for all the other nodes). To retain backwards compatibility I've provided aliases for each of these nodes.
This commit is contained in:
Auke Kok
233
lcd.lua
Normal file
233
lcd.lua
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@ -0,0 +1,233 @@
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--* parts are currently not possible because you cannot set the pitch of an entity from lua
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-- Font: 04.jp.org
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-- load characters map
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local chars_file = io.open(minetest.get_modpath("digilines").."/characters", "r")
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local charmap = {}
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local max_chars = 12
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if not chars_file then
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print("[digilines] E: LCD: character map file not found")
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else
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while true do
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local char = chars_file:read("*l")
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if char == nil then
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break
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end
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local img = chars_file:read("*l")
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chars_file:read("*l")
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charmap[char] = img
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end
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end
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local lcds = {
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-- on ceiling
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--* [0] = {delta = {x = 0, y = 0.4, z = 0}, pitch = math.pi / -2},
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-- on ground
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--* [1] = {delta = {x = 0, y =-0.4, z = 0}, pitch = math.pi / 2},
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-- sides
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[2] = {delta = {x = 0.4, y = 0, z = 0}, yaw = math.pi / -2},
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[3] = {delta = {x = -0.4, y = 0, z = 0}, yaw = math.pi / 2},
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[4] = {delta = {x = 0, y = 0, z = 0.4}, yaw = 0},
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[5] = {delta = {x = 0, y = 0, z = -0.4}, yaw = math.pi},
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}
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local reset_meta = function(pos)
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minetest.get_meta(pos):set_string("formspec", "field[channel;Channel;${channel}]")
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end
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local clearscreen = function(pos)
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local objects = minetest.get_objects_inside_radius(pos, 0.5)
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for _, o in ipairs(objects) do
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local o_entity = o:get_luaentity()
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if o_entity and o_entity.name == "digilines_lcd:text" then
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o:remove()
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end
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end
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end
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local prepare_writing = function(pos)
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local lcd_info = lcds[minetest.get_node(pos).param2]
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if lcd_info == nil then return end
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local text = minetest.add_entity(
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{x = pos.x + lcd_info.delta.x,
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y = pos.y + lcd_info.delta.y,
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z = pos.z + lcd_info.delta.z}, "digilines_lcd:text")
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text:setyaw(lcd_info.yaw or 0)
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--* text:setpitch(lcd_info.yaw or 0)
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return text
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end
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local on_digiline_receive = function(pos, node, channel, msg)
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local meta = minetest.get_meta(pos)
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local setchan = meta:get_string("channel")
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if setchan ~= channel then return end
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meta:set_string("text", msg)
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meta:set_string("infotext", msg)
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clearscreen(pos)
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if msg ~= "" then
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prepare_writing(pos)
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end
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end
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local lcd_box = {
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type = "wallmounted",
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wall_top = {-8/16, 7/16, -8/16, 8/16, 8/16, 8/16}
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}
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minetest.register_alias("digilines_lcd:lcd", "digilines:lcd")
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minetest.register_node("digilines:lcd", {
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drawtype = "nodebox",
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description = "Digiline LCD",
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inventory_image = "lcd_lcd.png",
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wield_image = "lcd_lcd.png",
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tiles = {"lcd_anyside.png"},
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paramtype = "light",
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sunlight_propagates = true,
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paramtype2 = "wallmounted",
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node_box = lcd_box,
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selection_box = lcd_box,
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groups = {choppy = 3, dig_immediate = 2},
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after_place_node = function (pos, placer, itemstack)
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local param2 = minetest.get_node(pos).param2
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if param2 == 0 or param2 == 1 then
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minetest.add_node(pos, {name = "digilines:lcd", param2 = 3})
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end
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prepare_writing (pos)
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end,
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on_construct = function(pos)
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reset_meta(pos)
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end,
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on_destruct = function(pos)
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clearscreen(pos)
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end,
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on_receive_fields = function(pos, formname, fields, sender)
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local name = sender:get_player_name()
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if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
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minetest.record_protection_violation(pos, name)
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return
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end
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if (fields.channel) then
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minetest.get_meta(pos):set_string("channel", fields.channel)
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end
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end,
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digiline =
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{
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receptor = {},
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effector = {
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action = on_digiline_receive
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},
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},
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light_source = 6,
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})
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minetest.register_entity(":digilines_lcd:text", {
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collisionbox = { 0, 0, 0, 0, 0, 0 },
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visual = "upright_sprite",
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textures = {},
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on_activate = function(self)
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local meta = minetest.get_meta(self.object:getpos())
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local text = meta:get_string("text")
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self.object:set_properties({textures={generate_texture(create_lines(text))}})
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end
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})
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-- CONSTANTS
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local LCD_WITH = 100
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local LCD_PADDING = 8
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local LINE_LENGTH = 12
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local NUMBER_OF_LINES = 5
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local LINE_HEIGHT = 14
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local CHAR_WIDTH = 5
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create_lines = function(text)
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local line = ""
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local line_num = 1
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local tab = {}
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for word in string.gmatch(text, "%S+") do
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if string.len(line)+string.len(word) < LINE_LENGTH and word ~= "|" then
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if line ~= "" then
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line = line.." "..word
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else
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line = word
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end
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else
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table.insert(tab, line)
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if word ~= "|" then
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line = word
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else
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line = ""
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end
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line_num = line_num+1
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if line_num > NUMBER_OF_LINES then
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return tab
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end
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end
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end
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table.insert(tab, line)
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return tab
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end
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generate_texture = function(lines)
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local texture = "[combine:"..LCD_WITH.."x"..LCD_WITH
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local ypos = 16
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for i = 1, #lines do
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texture = texture..generate_line(lines[i], ypos)
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ypos = ypos + LINE_HEIGHT
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end
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return texture
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end
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generate_line = function(s, ypos)
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local i = 1
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local parsed = {}
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local width = 0
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local chars = 0
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while chars < max_chars and i <= #s do
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local file = nil
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if charmap[s:sub(i, i)] ~= nil then
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file = charmap[s:sub(i, i)]
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i = i + 1
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elseif i < #s and charmap[s:sub(i, i + 1)] ~= nil then
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file = charmap[s:sub(i, i + 1)]
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i = i + 2
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else
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print("[digilines] W: LCD: unknown symbol in '"..s.."' at "..i)
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i = i + 1
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end
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if file ~= nil then
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width = width + CHAR_WIDTH
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table.insert(parsed, file)
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chars = chars + 1
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end
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end
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width = width - 1
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local texture = ""
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local xpos = math.floor((LCD_WITH - 2 * LCD_PADDING - width) / 2 + LCD_PADDING)
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for i = 1, #parsed do
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texture = texture..":"..xpos..","..ypos.."="..parsed[i]..".png"
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xpos = xpos + CHAR_WIDTH + 1
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end
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return texture
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end
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minetest.register_craft({
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output = "digilines:lcd 2",
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recipe = {
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{"default:steel_ingot", "digilines:wire_std_00000000", "default:steel_ingot"},
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{"mesecons_lightstone:lightstone_green_off","mesecons_lightstone:lightstone_green_off","mesecons_lightstone:lightstone_green_off"},
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{"default:glass","default:glass","default:glass"}
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}
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})
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