500 lines
16 KiB
Lua
500 lines
16 KiB
Lua
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--[[
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scriptblock = function (pos, node, sender, info, last, main_channel)
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-- "pos" and "node" are the position and the node information of the scriptblock being ran.
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-- "sender" would be the position of the node responsible for activating it.
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-- "info" is any information the previous node has sent to it.
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-- "last" is the information that "info" /was/ before it was last changed.
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-- "channel" is the channel in which variables are stored.
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blah blah blah
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return new_info, faces -- Information to pass to the next node(s), and information on which adjacent spaces we should even try to signal to.
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end
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]]
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local do_debug = false
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local function debug(text)
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if do_debug then minetest.chat_send_all("[SB] " .. text) end
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end
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local storage = minetest.get_mod_storage()
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-- Each section of the RMod gets its own storage, to prevent interference.
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-- RMod sections can still affect other sections, though only when intended.
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local function get_storage()
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return minetest.deserialize(storage:get_string("scriptblock")) or {}
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end
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local function set_storage(data)
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return storage:set_string("scriptblock", minetest.serialize(data))
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end
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-- To avoid lag and stack overflows, we add the data to a queue and then execute it with a globalstep.
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local queue = {}
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rmod.scriptblock = {}
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rmod.scriptblock.run = function (pos, sender, info, last, channel)
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local local_queue = {}
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-- Get information about this script block we are told to execute.
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local node = minetest.get_node(pos)
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local name = node.name
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local def = minetest.registered_nodes[name]
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-- If the block is a script block...
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if def and def.scriptblock then
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local new_info, faces = def.scriptblock(pos, node, sender, info, last, channel)
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-- if new_info == rmod.scriptblock.stop_signal then return end -- Looks like the block doesn't want to conduct.
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if not faces then
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faces = {true, true, true, true, true, true}
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end
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-- Check neighboring nodes; if they also have scriptblock and aren't the sender, execute them.
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for i=1,6 do
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if faces[i] then
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local dir = vector.new(0, 0, 0)
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if i == 1 then dir.y = 1
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elseif i == 2 then dir.y = -1
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elseif i == 3 then dir.x = 1
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elseif i == 4 then dir.x = -1
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elseif i == 5 then dir.z = 1
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elseif i == 6 then dir.z = -1 end
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local new_pos = vector.add(pos, dir)
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-- This is required, otherwise you'd have an unintentional feedback loop.
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-- Feedback loops can still be created intentionally, though.
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if not vector.equals(new_pos, sender) then
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local new_node = minetest.get_node(new_pos)
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local new_name = new_node.name
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local new_def = minetest.registered_nodes[new_name]
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if new_def and new_def.scriptblock then
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table.insert(local_queue, {new_pos, pos, new_info, info == new_info and last or info, channel})
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end
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end
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end
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end
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end
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return local_queue
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end
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rmod.scriptblock.escape = function (text, info, last)
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return text and text:gsub("@info", info):gsub("@last", last) or ""
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end
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local time = 0
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minetest.register_globalstep(function (dtime)
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time = time + dtime
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if time > 0.05 then time = 0 else return end
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local new_queue = {}
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for i,data in pairs(queue) do
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local new_list = rmod.scriptblock.run(unpack(data))
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if new_list then
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for _,new_item in pairs(new_list) do
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table.insert(new_queue, new_item)
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end
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end
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end
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queue = new_queue
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end)
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minetest.register_node("rmod:scriptblock_set", {
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description = "Scriptblock: Set",
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tiles = {"rmod_scriptblock_set.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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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", [[
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field[channel;Program channel (optional);${channel}]
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field[varname;Varname;${varname}]
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field[value;Value;${value}]
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]])
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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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if (fields.varname) then
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minetest.get_meta(pos):set_string("varname", fields.varname)
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end
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if (fields.value) then
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minetest.get_meta(pos):set_string("value", fields.value)
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end
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end,
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scriptblock = function (pos, node, sender, info, last, main_channel)
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local meta = minetest.get_meta(pos)
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local channel = rmod.scriptblock.escape(meta:get_string("channel"), info, last)
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local varname = rmod.scriptblock.escape(meta:get_string("varname"), info, last)
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local value = rmod.scriptblock.escape(meta:get_string("value"), info, last)
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local store = get_storage()
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if channel == "" or not channel then channel = main_channel end
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if not store[channel] then store[channel] = {} end
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store[channel][varname] = value
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set_storage(store)
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debug("SET " .. channel .. "." .. varname .. ": " .. value)
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return info
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end
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})
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minetest.register_node("rmod:scriptblock_get", {
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description = "Scriptblock: Get",
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tiles = {"rmod_scriptblock_get.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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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", [[
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field[channel;Program channel (optional);${channel}]
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field[varname;Varname;${varname}]
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]])
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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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if (fields.varname) then
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minetest.get_meta(pos):set_string("varname", fields.varname)
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end
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end,
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scriptblock = function (pos, node, sender, info, last, main_channel)
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local meta = minetest.get_meta(pos)
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local channel = rmod.scriptblock.escape(meta:get_string("channel"), info, last)
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local varname = rmod.scriptblock.escape(meta:get_string("varname"), info, last)
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local store = get_storage()
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if channel == "" or not channel then channel = main_channel end
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if not store[channel] then store[channel] = {} end
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debug("GET " .. channel .. "." .. varname .. ": " .. (store[channel][varname] or ""))
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return store[channel][varname] or ""
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end
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})
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minetest.register_node("rmod:scriptblock_mesecon", {
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description = "Scriptblock: Mesecon Detector",
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tiles = {"rmod_scriptblock_mesecon.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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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", [[
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field[channel;Program channel;${channel}]
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]])
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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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scriptblock = function (pos, node, sender, info, last, main_channel)
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return info
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end,
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mesecons = {effector = {
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action_on = function (pos, node)
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local meta = minetest.get_meta(pos)
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local channel = meta:get_string("channel")
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debug("ACTIVATED")
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table.insert(queue, {pos, pos, "", "", channel or ""})
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end,
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}}
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})
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minetest.register_node("rmod:scriptblock_print", {
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description = "Scriptblock: Print",
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tiles = {"rmod_scriptblock_print.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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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", [[
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field[player;Player;${player}]
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field[message;Message;${message}]
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]])
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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.player) then
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minetest.get_meta(pos):set_string("player", fields.player)
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end
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if (fields.message) then
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minetest.get_meta(pos):set_string("message", fields.message)
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end
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end,
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scriptblock = function (pos, node, sender, info, last, main_channel)
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local meta = minetest.get_meta(pos)
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local plr = rmod.scriptblock.escape(meta:get_string("player"), info, last)
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local msg = rmod.scriptblock.escape(meta:get_string("message"), info, last)
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if plr == "" then
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minetest.chat_send_all("Scriptblock -> all: " .. msg)
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else
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minetest.chat_send_player(plr, "Scriptblock -> you: " .. msg)
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end
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return info
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end
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})
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minetest.register_node("rmod:scriptblock_if", {
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description = "Scriptblock: If Equals",
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tiles = {"rmod_scriptblock_if_top.png", "rmod_scriptblock_if_bottom.png",
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"rmod_scriptblock_if_right.png", "rmod_scriptblock_if_left.png",
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"rmod_scriptblock_if_truth.png", "rmod_scriptblock_if_falsth.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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paramtype2 = "facedir",
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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", [[
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field[a;A;${a}]
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field[b;B;${b}]
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]])
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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.a) then
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minetest.get_meta(pos):set_string("a", fields.a)
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end
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if (fields.b) then
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minetest.get_meta(pos):set_string("b", fields.b)
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end
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end,
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scriptblock = function (pos, node, sender, info, last, main_channel)
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local meta = minetest.get_meta(pos)
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local a = rmod.scriptblock.escape(meta:get_string("a"), info, last)
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local b = rmod.scriptblock.escape(meta:get_string("b"), info, last)
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local facedir = node.param2
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local dir = minetest.facedir_to_dir(facedir)
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-- Y, -Y, X, -X, Z, -Z.
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local truth = {}
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local falsth = {}
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if dir.x == 1 then truth[3] = true; falsth[4] = true
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elseif dir.x == -1 then truth[4] = true; falsth[3] = true
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elseif dir.z == 1 then truth[5] = true; falsth[6] = true
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elseif dir.z == -1 then truth[6] = true; falsth[5] = true end
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return unpack(a == b and {info, truth} or {info, falsth})
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end
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})
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minetest.register_node("rmod:scriptblock_guide", {
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description = "Scriptblock: One-Way Guide",
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tiles = {"rmod_scriptblock_guide_top.png", "rmod_scriptblock_guide_bottom.png",
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"rmod_scriptblock_guide_right.png", "rmod_scriptblock_guide_left.png",
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"rmod_scriptblock_guide_front.png", "rmod_scriptblock_guide_back.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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paramtype2 = "facedir",
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scriptblock = function (pos, node, sender, info, last, main_channel)
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local facedir = node.param2
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local dir = minetest.facedir_to_dir(facedir)
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-- Y, -Y, X, -X, Z, -Z.
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local guide = {}
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if dir.x == 1 then guide[3] = true
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elseif dir.x == -1 then guide[4] = true
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elseif dir.z == 1 then guide[5] = true
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elseif dir.z == -1 then guide[6] = true end
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return info, guide
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end
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})
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minetest.register_node("rmod:scriptblock_add", {
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description = "Scriptblock: Add",
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tiles = {"rmod_scriptblock_add.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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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", [[
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field[a;A;${a}]
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|
|
field[b;B;${b}]
|
||
|
|
]])
|
||
|
|
end,
|
||
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
||
|
|
local name = sender:get_player_name()
|
||
|
|
if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
|
||
|
|
minetest.record_protection_violation(pos, name)
|
||
|
|
return
|
||
|
|
end
|
||
|
|
if (fields.a) then
|
||
|
|
minetest.get_meta(pos):set_string("a", fields.a)
|
||
|
|
end
|
||
|
|
if (fields.b) then
|
||
|
|
minetest.get_meta(pos):set_string("b", fields.b)
|
||
|
|
end
|
||
|
|
end,
|
||
|
|
scriptblock = function (pos, node, sender, info, last, main_channel)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
local a = rmod.scriptblock.escape(meta:get_string("a"), info, last)
|
||
|
|
local b = rmod.scriptblock.escape(meta:get_string("b"), info, last)
|
||
|
|
|
||
|
|
local facedir = node.param2
|
||
|
|
local dir = minetest.facedir_to_dir(facedir)
|
||
|
|
|
||
|
|
return tostring((tonumber(a) or 0) + (tonumber(b) or 0))
|
||
|
|
end
|
||
|
|
})
|
||
|
|
minetest.register_node("rmod:scriptblock_subtract", {
|
||
|
|
description = "Scriptblock: Subtract",
|
||
|
|
tiles = {"rmod_scriptblock_subtract.png"},
|
||
|
|
groups = {oddly_breakable_by_hand = 1},
|
||
|
|
use_texture_alpha = true,
|
||
|
|
on_construct = function(pos)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
meta:set_string("formspec", [[
|
||
|
|
field[a;A;${a}]
|
||
|
|
field[b;B;${b}]
|
||
|
|
]])
|
||
|
|
end,
|
||
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
||
|
|
local name = sender:get_player_name()
|
||
|
|
if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
|
||
|
|
minetest.record_protection_violation(pos, name)
|
||
|
|
return
|
||
|
|
end
|
||
|
|
if (fields.a) then
|
||
|
|
minetest.get_meta(pos):set_string("a", fields.a)
|
||
|
|
end
|
||
|
|
if (fields.b) then
|
||
|
|
minetest.get_meta(pos):set_string("b", fields.b)
|
||
|
|
end
|
||
|
|
end,
|
||
|
|
scriptblock = function (pos, node, sender, info, last, main_channel)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
local a = rmod.scriptblock.escape(meta:get_string("a"), info, last)
|
||
|
|
local b = rmod.scriptblock.escape(meta:get_string("b"), info, last)
|
||
|
|
|
||
|
|
local facedir = node.param2
|
||
|
|
local dir = minetest.facedir_to_dir(facedir)
|
||
|
|
|
||
|
|
return tostring((tonumber(a) or 0) - (tonumber(b) or 0))
|
||
|
|
end
|
||
|
|
})
|
||
|
|
minetest.register_node("rmod:scriptblock_multiply", {
|
||
|
|
description = "Scriptblock: Multiply",
|
||
|
|
tiles = {"rmod_scriptblock_multiply.png"},
|
||
|
|
groups = {oddly_breakable_by_hand = 1},
|
||
|
|
use_texture_alpha = true,
|
||
|
|
on_construct = function(pos)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
meta:set_string("formspec", [[
|
||
|
|
field[a;A;${a}]
|
||
|
|
field[b;B;${b}]
|
||
|
|
]])
|
||
|
|
end,
|
||
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
||
|
|
local name = sender:get_player_name()
|
||
|
|
if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
|
||
|
|
minetest.record_protection_violation(pos, name)
|
||
|
|
return
|
||
|
|
end
|
||
|
|
if (fields.a) then
|
||
|
|
minetest.get_meta(pos):set_string("a", fields.a)
|
||
|
|
end
|
||
|
|
if (fields.b) then
|
||
|
|
minetest.get_meta(pos):set_string("b", fields.b)
|
||
|
|
end
|
||
|
|
end,
|
||
|
|
scriptblock = function (pos, node, sender, info, last, main_channel)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
local a = rmod.scriptblock.escape(meta:get_string("a"), info, last)
|
||
|
|
local b = rmod.scriptblock.escape(meta:get_string("b"), info, last)
|
||
|
|
|
||
|
|
local facedir = node.param2
|
||
|
|
local dir = minetest.facedir_to_dir(facedir)
|
||
|
|
|
||
|
|
return tostring((tonumber(a) or 0) * (tonumber(b) or 0))
|
||
|
|
end
|
||
|
|
})
|
||
|
|
minetest.register_node("rmod:scriptblock_divide", {
|
||
|
|
description = "Scriptblock: Divide",
|
||
|
|
tiles = {"rmod_scriptblock_divide.png"},
|
||
|
|
groups = {oddly_breakable_by_hand = 1},
|
||
|
|
use_texture_alpha = true,
|
||
|
|
on_construct = function(pos)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
meta:set_string("formspec", [[
|
||
|
|
field[a;A;${a}]
|
||
|
|
field[b;B;${b}]
|
||
|
|
]])
|
||
|
|
end,
|
||
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
||
|
|
local name = sender:get_player_name()
|
||
|
|
if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, {protection_bypass=true}) then
|
||
|
|
minetest.record_protection_violation(pos, name)
|
||
|
|
return
|
||
|
|
end
|
||
|
|
if (fields.a) then
|
||
|
|
minetest.get_meta(pos):set_string("a", fields.a)
|
||
|
|
end
|
||
|
|
if (fields.b) then
|
||
|
|
minetest.get_meta(pos):set_string("b", fields.b)
|
||
|
|
end
|
||
|
|
end,
|
||
|
|
scriptblock = function (pos, node, sender, info, last, main_channel)
|
||
|
|
local meta = minetest.get_meta(pos)
|
||
|
|
local a = rmod.scriptblock.escape(meta:get_string("a"), info, last)
|
||
|
|
local b = rmod.scriptblock.escape(meta:get_string("b"), info, last)
|
||
|
|
|
||
|
|
local facedir = node.param2
|
||
|
|
local dir = minetest.facedir_to_dir(facedir)
|
||
|
|
|
||
|
|
return tostring((tonumber(a) or 0) / (tonumber(b) or 0))
|
||
|
|
end
|
||
|
|
})
|
||
|
|
|
||
|
|
minetest.register_node("rmod:scriptblock_nearest", {
|
||
|
|
description = "Scriptblock: Get Nearest Player",
|
||
|
|
tiles = {"rmod_scriptblock_nearest.png"},
|
||
|
|
groups = {oddly_breakable_by_hand = 1},
|
||
|
|
use_texture_alpha = true,
|
||
|
|
scriptblock = function (pos, node, sender, info, last, main_channel)
|
||
|
|
local players = minetest.get_connected_players()
|
||
|
|
|
||
|
|
local nearest = nil
|
||
|
|
local min_distance = math.huge
|
||
|
|
for index, player in pairs(players) do
|
||
|
|
local distance = vector.distance(pos, player:getpos())
|
||
|
|
if distance < min_distance then
|
||
|
|
min_distance = distance
|
||
|
|
nearest = player:get_player_name()
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
return nearest or ""
|
||
|
|
end
|
||
|
|
})
|