118 lines
3.7 KiB
Lua
118 lines
3.7 KiB
Lua
local function calculate_dec (value)
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-- Our mission: convert a user-provided value (how open the grate should be),
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-- into a dec value (how much the water should decrease when it flows through a grate).
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-- 0 -> 8 = 2^3
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-- 50% -> 4 = 2^2
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-- 100% -> 2 = 2^1
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local max = 100 -- atm
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local dec = max - value -- 0-50-100 -> 100-50-0
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dec = dec * 2 / max -- 100-50-0 -> 2-1-0
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dec = dec + 1 -- 2-1-0 -> 3-2-1
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dec = 2^dec -- 3-2-1 -> 8-4-2
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if dec > 8 then dec = 8 end
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if dec < 2 then dec = 2 end
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return math.floor(dec + 0.5) -- We're storing the dec value as an int, simply because water cannot have a fractional level.
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end
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local function digigrate_off_digiline_receive (pos, node, channel, msg)
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local setchan = minetest.get_meta(pos):get_string("channel")
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local param2 = minetest.get_node(pos).param2
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if channel == setchan then
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if msg == "on" or msg == "toggle" then
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minetest.swap_node(pos, {name = "rmod:digigrate_on"})
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elseif type(msg) == "table" and msg.command == "set" and tonumber(msg.value) then
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minetest.get_meta(pos):set_int("dec", calculate_dec(tonumber(msg.value)))
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end
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end
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end
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local function digigrate_on_digiline_receive (pos, node, channel, msg)
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local setchan = minetest.get_meta(pos):get_string("channel")
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local param2 = minetest.get_node(pos).param2
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if channel == setchan then
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if msg == "off" or msg == "toggle" then
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minetest.swap_node(pos, {name = "rmod:digigrate_off"})
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elseif type(msg) == "table" and msg.command == "set" and tonumber(msg.value) then
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minetest.get_meta(pos):set_int("dec", calculate_dec(tonumber(msg.value)))
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end
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end
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end
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minetest.register_node("rmod:digigrate_off", {
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description = "Digigrate",
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tiles = {"rmod_grate.png^rmod_digigrate_overlay_off.png"},
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groups = {oddly_breakable_by_hand = 1},
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use_texture_alpha = true,
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--drawtype = "glasslike",
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paramtype = "light",
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digiline =
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{
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receptor = {},
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effector = {
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action = digigrate_off_digiline_receive
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},
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},
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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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meta:set_int("dec", 2)
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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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})
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minetest.register_node("rmod:digigrate_on", {
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description = "Active Digigrate (you hacker you!)",
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tiles = {"rmod_grate.png^rmod_digigrate_overlay_on.png"},
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groups = {oddly_breakable_by_hand = 1, not_in_creative_inventory = 1},
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use_texture_alpha = true,
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drawtype = "glasslike",
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paramtype = "light",
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digiline = {
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receptor = {},
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effector = {
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action = digigrate_on_digiline_receive
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},
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},
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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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meta:set_int("dec", 2)
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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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drop = "rmod:digigrate_off"
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})
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minetest.register_abm({
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label = "Digigrate Step",
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nodenames = {"rmod:digigrate_on"},
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neighbors = {},
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interval = 1,
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chance = 1,
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action = function (pos, node)
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local meta = minetest.get_meta(pos)
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local dec = meta:get_int("dec")
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rmod.grate.flow(pos, node, dec)
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end,
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})
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