mirror of
https://cheapiesystems.com/git/digiscreen
synced 2024-07-04 14:55:21 +02:00
199 lines
6.5 KiB
Lua
199 lines
6.5 KiB
Lua
local function removeEntity(pos)
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local entitiesNearby = minetest.get_objects_inside_radius(pos,0.5)
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for _,i in pairs(entitiesNearby) do
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if i:get_luaentity() and i:get_luaentity().name == "digiscreen:image" then
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i:remove()
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end
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end
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end
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local function generateTexture(pos,serdata)
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--The data *should* always be valid, but it pays to double-check anyway due to how easily this could crash if something did go wrong
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if type(serdata) ~= "string" then
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minetest.log("error","[digiscreen] Serialized display data appears to be missing at "..minetest.pos_to_string(pos,0))
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return
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end
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local data = minetest.deserialize(serdata)
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if type(data) ~= "table" then
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minetest.log("error","[digiscreen] Failed to deserialize display data at "..minetest.pos_to_string(pos,0))
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return
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end
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for y=1,16,1 do
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if type(data[y]) ~= "table" then
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minetest.log("error","[digiscreen] Invalid row "..y.." at "..minetest.pos_to_string(pos,0))
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return
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end
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for x=1,16,1 do
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if type(data[y][x]) ~= "string" or string.len(data[y][x]) ~= 6 then
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minetest.log("error","[digiscreen] Missing/wrong length display data for X="..x.." Y="..y.." at "..minetest.pos_to_string(pos,0))
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return
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end
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for i=1,6,1 do
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if not tonumber(string.sub(data[y][x],i,i),16) then
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minetest.log("error","[digiscreen] Invalid digit in display data for X="..x.." Y="..y.." at "..minetest.pos_to_string(pos,0))
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return
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end
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end
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end
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end
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local ret = "[combine:16x16"
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for y=1,16,1 do
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for x=1,16,1 do
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ret = ret..string.format(":%d,%d=(digiscreen_pixel.png\\^[colorize\\:#%s\\:255)",x-1,y-1,data[y][x])
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end
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end
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return ret
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end
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local function updateDisplay(pos)
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removeEntity(pos)
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local meta = minetest.get_meta(pos)
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local data = meta:get_string("data")
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local entity = minetest.add_entity(pos,"digiscreen:image")
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local fdir = minetest.facedir_to_dir(minetest.get_node(pos).param2)
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local etex = "digiscreen_pixel.png"
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etex = generateTexture(pos,data) or etex
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entity:set_properties({textures={etex}})
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entity:set_yaw((fdir.x ~= 0) and math.pi/2 or 0)
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entity:set_pos(vector.add(pos,vector.multiply(fdir,0.39)))
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end
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minetest.register_entity("digiscreen:image",{
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initial_properties = {
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visual = "upright_sprite",
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physical = false,
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collisionbox = {0,0,0,0,0,0,},
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textures = {"digiscreen_pixel.png",},
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},
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})
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minetest.register_node("digiscreen:digiscreen",{
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description = "Digilines Graphical Display",
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tiles = {"digiscreen_pixel.png",},
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groups = {cracky = 3,},
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paramtype = "light",
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paramtype2 = "facedir",
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on_rotate = minetest.global_exists("screwdriver") and screwdriver.rotate_simple,
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drawtype = "nodebox",
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node_box = {
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type = "fixed",
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fixed = {-0.5,-0.5,0.4,0.5,0.5,0.5},
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},
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_digistuff_channelcopier_fieldname = "channel",
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light_source = 10,
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_string("formspec","field[channel;Channel;${channel}]")
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local disp = {}
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for y=1,16,1 do
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disp[y] = {}
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for x=1,16,1 do
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disp[y][x] = "000000"
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end
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end
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meta:set_string("data",minetest.serialize(disp))
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updateDisplay(pos)
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end,
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on_destruct = removeEntity,
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on_receive_fields = function(pos,_,fields,sender)
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local name = sender:get_player_name()
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if not fields.channel then return end
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if minetest.is_protected(pos,name) and not minetest.check_player_privs(name,"protection_bypass") 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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local meta = minetest.get_meta(pos)
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meta:set_string("channel",fields.channel)
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end,
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on_punch = function(screenpos,_,player)
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if player and not player.is_fake_player then
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local eyepos = vector.add(player:get_pos(),vector.add(player:get_eye_offset(),vector.new(0,1.5,0)))
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local lookdir = player:get_look_dir()
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local distance = vector.distance(eyepos,screenpos)
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local endpos = vector.add(eyepos,vector.multiply(lookdir,distance+1))
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local ray = minetest.raycast(eyepos,endpos,true,false)
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local pointed,screen,hitpos
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repeat
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pointed = ray:next()
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if pointed and pointed.type == "node" then
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local node = minetest.get_node(pointed.under)
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if node.name == "digiscreen:digiscreen" then
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screen = pointed.under
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hitpos = vector.subtract(pointed.intersection_point,screen)
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end
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end
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until screen or not pointed
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if not hitpos then return end
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local facedir = minetest.facedir_to_dir(minetest.get_node(screen).param2)
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if facedir.x > 0 then
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hitpos.x = -1*hitpos.z
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elseif facedir.x < 0 then
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hitpos.x = hitpos.z
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elseif facedir.z < 0 then
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hitpos.x = -1*hitpos.x
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end
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hitpos.y = -1*hitpos.y
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local hitpixel = {}
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hitpixel.x = math.floor((hitpos.x+0.5)*16+0.5)+1
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hitpixel.y = math.floor((hitpos.y+0.5)*16+0.5)+1
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if hitpixel.x < 1 or hitpixel.x > 16 or hitpixel.y < 1 or hitpixel.y > 16 then return end
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local message = {
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x = hitpixel.x,
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y = hitpixel.y,
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player = player:get_player_name(),
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}
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digilines.receptor_send(screenpos,digilines.rules.default,minetest.get_meta(screenpos):get_string("channel"),message)
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end
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end,
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digiline = {
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wire = {
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rules = digiline.rules.default,
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},
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effector = {
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action = function(pos,_,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 type(msg) ~= "table" or setchan ~= channel then return end
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local data = {}
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for y=1,16,1 do
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data[y] = {}
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if type(msg[y]) ~= "table" then msg[y] = {} end
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for x=1,16,1 do
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if type(msg[y][x]) == "string" and string.len(msg[y][x]) == 7 and string.sub(msg[y][x],1,1) == "#" then
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msg[y][x] = string.sub(msg[y][x],2,-1)
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end
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if type(msg[y][x]) ~= "string" or string.len(msg[y][x]) ~= 6 then msg[y][x] = "000000" end
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msg[y][x] = string.upper(msg[y][x])
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for i=1,6,1 do
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if not tonumber(string.sub(msg[y][x],i,i),16) then
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msg[y][x] = "000000"
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end
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end
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data[y][x] = msg[y][x]
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end
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end
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meta:set_string("data",minetest.serialize(data))
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updateDisplay(pos)
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end,
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},
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},
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})
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minetest.register_lbm({
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name = "digiscreen:respawn",
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label = "Respawn digiscreen entities",
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nodenames = {"digiscreen:digiscreen"},
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run_at_every_load = true,
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action = updateDisplay,
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})
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minetest.register_craft({
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output = "digiscreen:digiscreen",
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recipe = {
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{"mesecons_luacontroller:luacontroller0000","rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0",},
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{"rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0",},
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{"rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0","rgblightstone:rgblightstone_truecolor_0",},
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},
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})
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