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MineClone2/mods/ITEMS/REDSTONE/mesecons_delayer/init.lua

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local S = minetest.get_translator("mesecons_delayer")
local DELAYS = { 0.1, 0.2, 0.3, 0.4 }
local DEFAULT_DELAY = DELAYS[1]
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-- Function that get the input/output rules of the delayer
local delayer_get_output_rules = function(node)
local rules = {{x = -1, y = 0, z = 0, spread=true}}
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for i = 0, node.param2 do
rules = mesecon.rotate_rules_left(rules)
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end
return rules
end
local delayer_get_input_rules = function(node)
local rules = {{x = 1, y = 0, z = 0}}
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for i = 0, node.param2 do
rules = mesecon.rotate_rules_left(rules)
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end
return rules
end
-- Return the sides of a delayer.
-- Those are used to toggle the lock state.
local delayer_get_sides = function(node)
local rules = {
{x = 0, y = 0, z = -1},
{x = 0, y = 0, z = 1},
}
for i = 0, node.param2 do
rules = mesecon.rotate_rules_left(rules)
end
return rules
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end
-- Make the repeater at pos try to lock any repeater it faces.
-- Returns true if a repeater was locked.
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local check_lock_repeater = function(pos, node)
-- Check the repeater at pos and look if it faces
-- a repeater placed sideways.
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-- If yes, lock the second repeater.
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local r = delayer_get_output_rules(node)[1]
local lpos = vector.add(pos, r)
local lnode = minetest.get_node(lpos)
local ldef = minetest.registered_nodes[lnode.name]
local g = minetest.get_item_group(lnode.name, "redstone_repeater")
if g >= 1 and g <= 4 then
local lrs = delayer_get_input_rules(lnode)
local fail = false
for _, lr in pairs(lrs) do
if lr.x == r.x or lr.z == r.z then
fail = true
break
end
end
if not fail then
minetest.set_node(lpos, {name=ldef.delayer_lockstate, param2=lnode.param2})
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local meta = minetest.get_meta(lpos)
-- Metadata: delay. Used to remember the delay for locked repeaters.
-- The number is the torch position (1-4).
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meta:set_int("delay", g)
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return true
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end
end
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return false
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end
-- Make the repeater at pos try to unlock any repeater it faces.
-- Returns true if a repeater was unlocked.
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local check_unlock_repeater = function(pos, node)
-- Check the repeater at pos and look if it faces
-- a repeater placed sideways.
-- If yes, also check if the second repeater doesn't receive
-- a locking signal on the other side. If not, unlock the second repeater.
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local r = delayer_get_output_rules(node)[1]
local lpos = vector.add(pos, r)
local lnode = minetest.get_node(lpos)
local ldef = minetest.registered_nodes[lnode.name]
local g = minetest.get_item_group(lnode.name, "redstone_repeater")
-- Are we facing a locked repeater?
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if g == 5 then
-- First check the orientation of the faced repeater
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local lrs = delayer_get_input_rules(lnode)
for _, lr in pairs(lrs) do
if lr.x == r.x or lr.z == r.z then
-- Invalid orientation. Do nothing
return false
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end
end
-- Now we check if there's a powered repeater on the other side of the
-- locked repeater.
-- To get to the other side, we just take another step in the direction which we already face.
local other_side = vector.add(lpos, r)
local other_node = minetest.get_node(other_side)
if minetest.get_item_group(other_node.name, "redstone_repeater") ~= 0 and mesecon.is_receptor_on(other_node.name) then
-- Final check: The other repeater must also face the right way
local other_face = delayer_get_output_rules(other_node)[1]
local other_facing_pos = vector.add(other_side, other_face)
if vector.equals(other_facing_pos, lpos) then
-- Powered repeater found AND it's facing the locked repeater. Do NOT unlock!
return false
end
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end
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local lmeta = minetest.get_meta(lpos)
local ldelay = lmeta:get_int("delay")
if tonumber(ldelay) == nil or ldelay < 1 or ldelay > 4 then
ldelay = 1
end
if mesecon.is_powered(lpos, delayer_get_input_rules(lnode)[1]) then
minetest.set_node(lpos, {name="mesecons_delayer:delayer_on_"..ldelay, param2=lnode.param2})
mesecon.queue:add_action(lpos, "receptor_on", {delayer_get_output_rules(lnode)}, ldef.delayer_time, nil)
else
minetest.set_node(lpos, {name="mesecons_delayer:delayer_off_"..ldelay, param2=lnode.param2})
mesecon.queue:add_action(lpos, "receptor_off", {delayer_get_output_rules(lnode)}, ldef.delayer_time, nil)
end
return true
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end
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return false
end
-- Functions that are called after the delay time
local delayer_activate = function(pos, node)
local def = minetest.registered_nodes[node.name]
local time = def.delayer_time
minetest.set_node(pos, {name=def.delayer_onstate, param2=node.param2})
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mesecon.queue:add_action(pos, "receptor_on", {delayer_get_output_rules(node)}, time, nil)
check_lock_repeater(pos, node)
end
local delayer_deactivate = function(pos, node)
local def = minetest.registered_nodes[node.name]
local time = def.delayer_time
minetest.set_node(pos, {name=def.delayer_offstate, param2=node.param2})
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mesecon.queue:add_action(pos, "receptor_off", {delayer_get_output_rules(node)}, time, nil)
check_unlock_repeater(pos, node)
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end
local on_rotate
if minetest.get_modpath("screwdriver") then
on_rotate = screwdriver.disallow
end
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-- Register the 2 (states) x 4 (delay times) delayers
for i = 1, 4 do
local groups = {}
if i == 1 then
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groups = {dig_immediate=3,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,attached_node=1,redstone_repeater=i}
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else
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groups = {dig_immediate=3,dig_by_water=1,destroy_by_lava_flow=1,dig_by_piston=1,attached_node=1,redstone_repeater=i,not_in_creative_inventory=1}
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end
local delaytime = DELAYS[i]
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local boxes
if i == 1 then
boxes = {
{ -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }, -- the main slab
{ -1/16, -6/16, 6/16, 1/16, -1/16, 4/16}, -- still torch
{ -1/16, -6/16, 0/16, 1/16, -1/16, 2/16}, -- moved torch
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}
elseif i == 2 then
boxes = {
{ -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }, -- the main slab
{ -1/16, -6/16, 6/16, 1/16, -1/16, 4/16}, -- still torch
{ -1/16, -6/16, -2/16, 1/16, -1/16, 0/16}, -- moved torch
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}
elseif i == 3 then
boxes = {
{ -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }, -- the main slab
{ -1/16, -6/16, 6/16, 1/16, -1/16, 4/16}, -- still torch
{ -1/16, -6/16, -4/16, 1/16, -1/16, -2/16}, -- moved torch
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}
elseif i == 4 then
boxes = {
{ -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }, -- the main slab
{ -1/16, -6/16, 6/16, 1/16, -1/16, 4/16}, -- still torch
{ -1/16, -6/16, -6/16, 1/16, -1/16, -4/16}, -- moved torch
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}
end
local help, longdesc, usagehelp, icon, on_construct
if i == 1 then
help = true
longdesc = S("Redstone repeaters are versatile redstone components with multiple purposes: 1. They only allow signals to travel in one direction. 2. They delay the signal. 3. Optionally, they can lock their output in one state.")
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usagehelp = S("To power a redstone repeater, send a signal in “arrow” direction (the input). The signal goes out on the opposite side (the output) with a delay. To change the delay, use the redstone repeater. The delay is between 0.1 and 0.4 seconds long and can be changed in steps of 0.1 seconds. It is indicated by the position of the moving redstone torch.").."\n"..
S("To lock a repeater, send a signal from an adjacent repeater into one of its sides. While locked, the moving redstone torch disappears, the output doesn't change and the input signal is ignored.")
icon = "mesecons_delayer_item.png"
-- Check sides of constructed repeater and lock it, if required
on_construct = function(pos)
local node = minetest.get_node(pos)
local sides = delayer_get_sides(node)
for s=1, #sides do
local spos = vector.add(pos, sides[s])
local snode = minetest.get_node(spos)
-- Is there a powered repeater at one of our sides?
local g = minetest.get_item_group(snode.name, "redstone_repeater")
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if g ~= 0 and mesecon.is_receptor_on(snode.name) then
-- The other repeater must also face towards the constructed node
local sface = delayer_get_output_rules(snode)[1]
local sface_pos = vector.add(spos, sface)
if vector.equals(sface_pos, pos) then
-- Repeater is facing towards us! Now we just need to lock the costructed node
if mesecon.is_powered(pos, delayer_get_input_rules(node)[1]) ~= false then
local newnode = {name="mesecons_delayer:delayer_on_locked", param2 = node.param2}
minetest.set_node(pos, newnode)
mesecon.queue:add_action(pos, "receptor_on", {delayer_get_output_rules(newnode)}, DEFAULT_DELAY, nil)
else
minetest.set_node(pos, {name="mesecons_delayer:delayer_off_locked", param2 = node.param2})
end
break
end
end
end
end
else
help = false
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end
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minetest.register_node("mesecons_delayer:delayer_off_"..tostring(i), {
description = S("Redstone Repeater"),
inventory_image = icon,
wield_image = icon,
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_doc_items_create_entry = help,
_doc_items_longdesc = longdesc,
_doc_items_usagehelp = usagehelp,
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drawtype = "nodebox",
tiles = {
"mesecons_delayer_off.png",
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"mcl_stairs_stone_slab_top.png",
"mesecons_delayer_sides_off.png",
"mesecons_delayer_sides_off.png",
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"mesecons_delayer_ends_off.png",
"mesecons_delayer_ends_off.png",
},
wield_image = "mesecons_delayer_off.png",
walkable = true,
selection_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
collision_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
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node_box = {
type = "fixed",
fixed = boxes
},
groups = groups,
paramtype = "light",
paramtype2 = "facedir",
sunlight_propagates = false,
is_ground_content = false,
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drop = 'mesecons_delayer:delayer_off_1',
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on_rightclick = function (pos, node, clicker)
local protname = clicker:get_player_name()
if minetest.is_protected(pos, protname) then
minetest.record_protection_violation(pos, protname)
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return
end
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if node.name=="mesecons_delayer:delayer_off_1" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_off_2", param2=node.param2})
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elseif node.name=="mesecons_delayer:delayer_off_2" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_off_3", param2=node.param2})
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elseif node.name=="mesecons_delayer:delayer_off_3" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_off_4", param2=node.param2})
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elseif node.name=="mesecons_delayer:delayer_off_4" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_off_1", param2=node.param2})
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end
end,
on_construct = on_construct,
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delayer_time = delaytime,
delayer_onstate = "mesecons_delayer:delayer_on_"..tostring(i),
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delayer_lockstate = "mesecons_delayer:delayer_off_locked",
sounds = mcl_sounds.node_sound_stone_defaults(),
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mesecons = {
receptor =
{
state = mesecon.state.off,
rules = delayer_get_output_rules
},
effector =
{
rules = delayer_get_input_rules,
action_on = delayer_activate
}
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},
on_rotate = on_rotate,
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})
minetest.register_node("mesecons_delayer:delayer_on_"..tostring(i), {
description = S("Redstone Repeater (Powered)"),
_doc_items_create_entry = false,
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drawtype = "nodebox",
tiles = {
"mesecons_delayer_on.png",
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"mcl_stairs_stone_slab_top.png",
"mesecons_delayer_sides_on.png",
"mesecons_delayer_sides_on.png",
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"mesecons_delayer_ends_on.png",
"mesecons_delayer_ends_on.png",
},
walkable = true,
selection_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
collision_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
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node_box = {
type = "fixed",
fixed = boxes
},
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groups = {dig_immediate = 3, dig_by_water=1,destroy_by_lava_flow=1, dig_by_piston=1, attached_node=1, redstone_repeater=i, not_in_creative_inventory = 1},
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paramtype = "light",
paramtype2 = "facedir",
sunlight_propagates = false,
is_ground_content = false,
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drop = 'mesecons_delayer:delayer_off_1',
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on_rightclick = function (pos, node, clicker)
local protname = clicker:get_player_name()
if minetest.is_protected(pos, protname) then
minetest.record_protection_violation(pos, protname)
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return
end
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if node.name=="mesecons_delayer:delayer_on_1" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_on_2",param2=node.param2})
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elseif node.name=="mesecons_delayer:delayer_on_2" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_on_3",param2=node.param2})
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elseif node.name=="mesecons_delayer:delayer_on_3" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_on_4",param2=node.param2})
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elseif node.name=="mesecons_delayer:delayer_on_4" then
minetest.set_node(pos, {name="mesecons_delayer:delayer_on_1",param2=node.param2})
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end
end,
after_dig_node = function(pos, oldnode)
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check_unlock_repeater(pos, oldnode)
end,
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delayer_time = delaytime,
delayer_offstate = "mesecons_delayer:delayer_off_"..tostring(i),
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delayer_lockstate = "mesecons_delayer:delayer_on_locked",
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sounds = mcl_sounds.node_sound_stone_defaults(),
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mesecons = {
receptor =
{
state = mesecon.state.on,
rules = delayer_get_output_rules
},
effector =
{
rules = delayer_get_input_rules,
action_off = delayer_deactivate
}
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},
on_rotate = on_rotate,
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})
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end
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-- Locked repeater
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minetest.register_node("mesecons_delayer:delayer_off_locked", {
description = S("Redstone Repeater (Locked)"),
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_doc_items_create_entry = false,
drawtype = "nodebox",
-- FIXME: Textures of torch and the lock bar overlap. Nodeboxes are (sadly) not suitable for this.
-- So this needs to be turned into a mesh.
tiles = {
"mesecons_delayer_locked_off.png",
"mcl_stairs_stone_slab_top.png",
"mesecons_delayer_sides_locked_off.png",
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"mesecons_delayer_sides_locked_off.png",
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"mesecons_delayer_front_locked_off.png",
"mesecons_delayer_end_locked_off.png",
},
wield_image = "mesecons_delayer_locked_off.png",
walkable = true,
selection_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
collision_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
node_box = {
type = "fixed",
fixed = {
{ -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }, -- the main slab
{ -1/16, -6/16, 6/16, 1/16, -1/16, 4/16}, -- still torch
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{ -6/16, -6/16, -1/16, 6/16, -4/16, 1/16}, -- lock
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}
},
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groups = {dig_immediate = 3, dig_by_water=1,destroy_by_lava_flow=1, dig_by_piston=1, attached_node=1, redstone_repeater=5, not_in_creative_inventory = 1},
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paramtype = "light",
paramtype2 = "facedir",
sunlight_propagates = false,
is_ground_content = false,
drop = 'mesecons_delayer:delayer_off_1',
delayer_time = DEFAULT_DELAY,
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sounds = mcl_sounds.node_sound_stone_defaults(),
mesecons = {
receptor =
{
state = mesecon.state.off,
rules = delayer_get_output_rules
},
effector =
{
rules = delayer_get_input_rules,
}
},
on_rotate = on_rotate,
})
minetest.register_node("mesecons_delayer:delayer_on_locked", {
description = S("Redstone Repeater (Locked, Powered)"),
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_doc_items_create_entry = false,
drawtype = "nodebox",
tiles = {
"mesecons_delayer_locked_on.png",
"mcl_stairs_stone_slab_top.png",
"mesecons_delayer_sides_locked_on.png",
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"mesecons_delayer_sides_locked_on.png",
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"mesecons_delayer_front_locked_on.png",
"mesecons_delayer_end_locked_on.png",
},
walkable = true,
selection_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
collision_box = {
type = "fixed",
fixed = { -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 },
},
node_box = {
type = "fixed",
fixed = {
{ -8/16, -8/16, -8/16, 8/16, -6/16, 8/16 }, -- the main slab
{ -1/16, -6/16, 6/16, 1/16, -1/16, 4/16}, -- still torch
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{ -6/16, -6/16, -1/16, 6/16, -4/16, 1/16}, -- lock
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}
},
after_dig_node = function(pos, oldnode)
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check_unlock_repeater(pos, oldnode)
end,
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groups = {dig_immediate = 3, dig_by_water=1,destroy_by_lava_flow=1, dig_by_piston=1, attached_node=1, redstone_repeater=5, not_in_creative_inventory = 1},
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paramtype = "light",
paramtype2 = "facedir",
sunlight_propagates = false,
is_ground_content = false,
drop = 'mesecons_delayer:delayer_off_1',
delayer_time = DEFAULT_DELAY,
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sounds = mcl_sounds.node_sound_stone_defaults(),
mesecons = {
receptor =
{
state = mesecon.state.on,
rules = delayer_get_output_rules
},
effector =
{
rules = delayer_get_input_rules,
}
},
on_rotate = on_rotate,
})
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minetest.register_craft({
output = "mesecons_delayer:delayer_off_1",
recipe = {
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{"mesecons_torch:mesecon_torch_on", "mesecons:redstone", "mesecons_torch:mesecon_torch_on"},
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{"mcl_core:stone","mcl_core:stone", "mcl_core:stone"},
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}
})
-- Add entry aliases for the Help
if minetest.get_modpath("doc") then
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_off_2")
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_off_3")
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_off_4")
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doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_off_locked")
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_on_1")
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_on_2")
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_on_3")
doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_on_4")
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doc.add_entry_alias("nodes", "mesecons_delayer:delayer_off_1", "nodes", "mesecons_delayer:delayer_on_locked")
end