forked from VoxeLibre/VoxeLibre
462 lines
18 KiB
Lua
462 lines
18 KiB
Lua
local S = minetest.get_translator("mcl_observers")
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mcl_observers = {}
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-- Warning! TODO: Remove this message.
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-- 'realtime' is experimental feature! It can slow down the everything!
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-- Please set it to false and restart the game if something's wrong:
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local realtime = true
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--local realtime = false
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local rules_flat = {
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{ x = 0, y = 0, z = -1, spread = true },
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}
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local get_rules_flat = function(node)
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local rules = rules_flat
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for i=1, node.param2 do
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rules = mesecon.rotate_rules_left(rules)
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end
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return rules
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end
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local rules_down = {{ x = 0, y = 1, z = 0, spread = true }}
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local rules_up = {{ x = 0, y = -1, z = 0, spread = true }}
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function mcl_observers.observer_activate(pos)
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minetest.after(mcl_vars.redstone_tick, function(pos)
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local node = minetest.get_node(pos)
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if not node then
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return
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end
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local nn = node.name
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if nn == "mcl_observers:observer_off" then
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minetest.set_node(pos, {name = "mcl_observers:observer_on", param2 = node.param2})
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mesecon.receptor_on(pos, get_rules_flat(node))
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elseif nn == "mcl_observers:observer_down_off" then
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minetest.set_node(pos, {name = "mcl_observers:observer_down_on"})
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mesecon.receptor_on(pos, rules_down)
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elseif nn == "mcl_observers:observer_up_off" then
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minetest.set_node(pos, {name = "mcl_observers:observer_up_on"})
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mesecon.receptor_on(pos, rules_up)
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end
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end, {x=pos.x, y=pos.y, z=pos.z})
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end
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-- Scan the node in front of the observer
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-- and update the observer state if needed.
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-- TODO: Also scan metadata changes.
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-- TODO: Ignore some node changes.
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local observer_scan = function(pos, initialize)
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local node = minetest.get_node(pos)
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local front
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if node.name == "mcl_observers:observer_up_off" or node.name == "mcl_observers:observer_up_on" then
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front = vector.add(pos, {x=0, y=1, z=0})
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elseif node.name == "mcl_observers:observer_down_off" or node.name == "mcl_observers:observer_down_on" then
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front = vector.add(pos, {x=0, y=-1, z=0})
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else
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front = vector.add(pos, minetest.facedir_to_dir(node.param2))
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end
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local frontnode = minetest.get_node(front)
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local meta = minetest.get_meta(pos)
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local oldnode = meta:get_string("node_name")
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local oldparam2 = meta:get_string("node_param2")
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local meta_needs_updating = false
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if oldnode ~= "" and not initialize then
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if not (frontnode.name == oldnode and tostring(frontnode.param2) == oldparam2) then
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-- Node state changed! Activate observer
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if node.name == "mcl_observers:observer_off" then
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minetest.set_node(pos, {name = "mcl_observers:observer_on", param2 = node.param2})
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mesecon.receptor_on(pos, get_rules_flat(node))
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elseif node.name == "mcl_observers:observer_down_off" then
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minetest.set_node(pos, {name = "mcl_observers:observer_down_on"})
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mesecon.receptor_on(pos, rules_down)
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elseif node.name == "mcl_observers:observer_up_off" then
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minetest.set_node(pos, {name = "mcl_observers:observer_up_on"})
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mesecon.receptor_on(pos, rules_up)
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end
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meta_needs_updating = true
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end
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else
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meta_needs_updating = true
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end
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if meta_needs_updating then
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meta:set_string("node_name", frontnode.name)
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meta:set_string("node_param2", tostring(frontnode.param2))
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end
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return frontnode
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end
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-- Vertical orientation (CURRENTLY DISABLED)
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local observer_orientate = function(pos, placer)
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-- Not placed by player
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if not placer then return end
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-- Placer pitch in degrees
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local pitch = placer:get_look_vertical() * (180 / math.pi)
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local node = minetest.get_node(pos)
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if pitch > 55 then -- player looking upwards
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-- Observer looking downwards
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minetest.set_node(pos, {name="mcl_observers:observer_down_off"})
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elseif pitch < -55 then -- player looking downwards
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-- Observer looking upwards
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minetest.set_node(pos, {name="mcl_observers:observer_up_off"})
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end
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end
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mesecon.register_node("mcl_observers:observer",
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{
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is_ground_content = false,
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sounds = mcl_sounds.node_sound_stone_defaults(),
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paramtype2 = "facedir",
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on_rotate = false,
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_mcl_blast_resistance = 3.5,
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_mcl_hardness = 3.5,
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},
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{
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description = S("Observer"),
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_tt_help = S("Emits redstone pulse when block in front changes"),
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_doc_items_longdesc = S("An observer is a redstone component which observes the block in front of it and sends a very short redstone pulse whenever this block changes."),
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_doc_items_usagehelp = S("Place the observer directly in front of the block you want to observe with the “face” looking at the block. The arrow points to the side of the output, which is at the opposite side of the “face”. You can place your redstone dust or any other component here."),
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groups = {pickaxey=1, material_stone=1, not_opaque=1, },
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tiles = {
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"mcl_observers_observer_top.png^[transformR180", "default_furnace_bottom.png",
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"mcl_observers_observer_side.png", "mcl_observers_observer_side.png",
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"mcl_observers_observer_front.png", "mcl_observers_observer_back.png",
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},
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mesecons = { receptor = {
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state = mesecon.state.off,
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rules = get_rules_flat,
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}},
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on_construct = function(pos)
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if not realtime then
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observer_scan(pos, true)
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end
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end,
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after_place_node = observer_orientate,
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},
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{
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_doc_items_create_entry = false,
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groups = {pickaxey=1, material_stone=1, not_opaque=1, not_in_creative_inventory=1 },
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tiles = {
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"mcl_observers_observer_top.png^[transformR180", "default_furnace_bottom.png",
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"mcl_observers_observer_side.png", "mcl_observers_observer_side.png",
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"mcl_observers_observer_front.png", "mcl_observers_observer_back_lit.png",
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},
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mesecons = { receptor = {
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state = mesecon.state.on,
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rules = get_rules_flat,
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}},
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-- VERY quickly disable observer after construction
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on_construct = function(pos)
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local timer = minetest.get_node_timer(pos)
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timer:start(mcl_vars.redstone_tick)
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end,
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on_timer = function(pos, elapsed)
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local node = minetest.get_node(pos)
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minetest.set_node(pos, {name = "mcl_observers:observer_off", param2 = node.param2})
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mesecon.receptor_off(pos, get_rules_flat(node))
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end,
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}
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)
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mesecon.register_node("mcl_observers:observer_down",
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{
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is_ground_content = false,
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sounds = mcl_sounds.node_sound_stone_defaults(),
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groups = {pickaxey=1, material_stone=1, not_opaque=1, not_in_creative_inventory=1 },
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on_rotate = false,
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_mcl_blast_resistance = 3.5,
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_mcl_hardness = 3.5,
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drop = "mcl_observers:observer_off",
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},
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{
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tiles = {
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"mcl_observers_observer_back.png", "mcl_observers_observer_front.png",
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"mcl_observers_observer_side.png^[transformR90", "mcl_observers_observer_side.png^[transformR90",
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"mcl_observers_observer_top.png", "mcl_observers_observer_top.png",
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},
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mesecons = { receptor = {
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state = mesecon.state.off,
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rules = rules_down,
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}},
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on_construct = function(pos)
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if not realtime then
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observer_scan(pos, true)
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end
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end,
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},
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{
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_doc_items_create_entry = false,
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tiles = {
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"mcl_observers_observer_back_lit.png", "mcl_observers_observer_front.png",
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"mcl_observers_observer_side.png^[transformR90", "mcl_observers_observer_side.png^[transformR90",
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"mcl_observers_observer_top.png", "mcl_observers_observer_top.png",
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},
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mesecons = { receptor = {
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state = mesecon.state.on,
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rules = rules_down,
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}},
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-- VERY quickly disable observer after construction
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on_construct = function(pos)
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local timer = minetest.get_node_timer(pos)
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timer:start(mcl_vars.redstone_tick)
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end,
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on_timer = function(pos, elapsed)
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local node = minetest.get_node(pos)
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minetest.set_node(pos, {name = "mcl_observers:observer_down_off", param2 = node.param2})
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mesecon.receptor_off(pos, rules_down)
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end,
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})
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mesecon.register_node("mcl_observers:observer_up",
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{
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is_ground_content = false,
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sounds = mcl_sounds.node_sound_stone_defaults(),
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groups = {pickaxey=1, material_stone=1, not_opaque=1, not_in_creative_inventory=1 },
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on_rotate = false,
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_mcl_blast_resistance = 3.5,
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_mcl_hardness = 3.5,
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drop = "mcl_observers:observer_off",
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},
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{
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tiles = {
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"mcl_observers_observer_front.png", "mcl_observers_observer_back.png",
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"mcl_observers_observer_side.png^[transformR270", "mcl_observers_observer_side.png^[transformR270",
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"mcl_observers_observer_top.png^[transformR180", "mcl_observers_observer_top.png^[transformR180",
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},
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mesecons = { receptor = {
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state = mesecon.state.off,
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rules = rules_up,
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}},
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on_construct = function(pos)
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if not realtime then
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observer_scan(pos, true)
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end
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end,
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},
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{
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_doc_items_create_entry = false,
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tiles = {
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"mcl_observers_observer_front.png", "mcl_observers_observer_back_lit.png",
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"mcl_observers_observer_side.png^[transformR270", "mcl_observers_observer_side.png^[transformR270",
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"mcl_observers_observer_top.png^[transformR180", "mcl_observers_observer_top.png^[transformR180",
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},
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mesecons = { receptor = {
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state = mesecon.state.on,
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rules = rules_up,
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}},
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-- VERY quickly disable observer after construction
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on_construct = function(pos)
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local timer = minetest.get_node_timer(pos)
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timer:start(mcl_vars.redstone_tick)
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end,
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on_timer = function(pos, elapsed)
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minetest.set_node(pos, {name = "mcl_observers:observer_up_off"})
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mesecon.receptor_off(pos, rules_up)
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end,
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})
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minetest.register_craft({
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output = "mcl_observers:observer_off",
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recipe = {
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{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
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{ "mcl_nether:quartz", "mesecons:redstone", "mesecons:redstone" },
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{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
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}
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})
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minetest.register_craft({
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output = "mcl_observers:observer_off",
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recipe = {
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{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
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{ "mesecons:redstone", "mesecons:redstone", "mcl_nether:quartz" },
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{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
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}
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})
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if realtime then
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-- Override basic functions for observing:
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mcl_observers.add_node = minetest.add_node
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mcl_observers.set_node = minetest.set_node
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mcl_observers.swap_node = minetest.swap_node
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mcl_observers.remove_node = minetest.remove_node
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mcl_observers.bulk_set_node = minetest.bulk_set_node
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minetest.add_node=function(pos,node)
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mcl_observers.add_node(pos,node)
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local n=minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==-1 then
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mcl_observers.observer_activate({x=pos.x+1,y=pos.y,z=pos.z})
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end
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n=minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==1 then
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mcl_observers.observer_activate({x=pos.x-1,y=pos.y,z=pos.z})
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end
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n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==-1 then
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mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z+1})
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end
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n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==1 then
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mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z-1})
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end
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n=minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_u" then
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mcl_observers.observer_activate({x=pos.x,y=pos.y-1,z=pos.z})
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end
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n=minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_d" then
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mcl_observers.observer_activate({x=pos.x,y=pos.y+1,z=pos.z})
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end
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end
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minetest.set_node=function(pos,node)
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mcl_observers.set_node(pos,node)
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local n=minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==-1 then
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mcl_observers.observer_activate({x=pos.x+1,y=pos.y,z=pos.z})
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end
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n=minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==1 then
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mcl_observers.observer_activate({x=pos.x-1,y=pos.y,z=pos.z})
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end
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n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==-1 then
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mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z+1})
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end
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n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==1 then
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mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z-1})
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end
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n=minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_u" then
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mcl_observers.observer_activate({x=pos.x,y=pos.y-1,z=pos.z})
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end
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n=minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_d" then
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mcl_observers.observer_activate({x=pos.x,y=pos.y+1,z=pos.z})
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end
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end
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minetest.swap_node=function(pos,node)
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mcl_observers.swap_node(pos,node)
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local n=minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==-1 then
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mcl_observers.observer_activate({x=pos.x+1,y=pos.y,z=pos.z})
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end
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n=minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==1 then
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mcl_observers.observer_activate({x=pos.x-1,y=pos.y,z=pos.z})
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end
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n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==-1 then
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mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z+1})
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end
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n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==1 then
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mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z-1})
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end
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n=minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_u" then
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mcl_observers.observer_activate({x=pos.x,y=pos.y-1,z=pos.z})
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end
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n=minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
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if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_d" then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y+1,z=pos.z})
|
|
end
|
|
end
|
|
minetest.remove_node=function(pos)
|
|
mcl_observers.remove_node(pos)
|
|
local n=minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==-1 then
|
|
mcl_observers.observer_activate({x=pos.x+1,y=pos.y,z=pos.z})
|
|
end
|
|
n=minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==1 then
|
|
mcl_observers.observer_activate({x=pos.x-1,y=pos.y,z=pos.z})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==-1 then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z+1})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==1 then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z-1})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_u" then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y-1,z=pos.z})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_d" then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y+1,z=pos.z})
|
|
end
|
|
end
|
|
minetest.bulk_set_node=function(lst, node)
|
|
mcl_observers.bulk_set_node(lst, node)
|
|
for _, pos in pairs(lst) do
|
|
local n=minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==-1 then
|
|
mcl_observers.observer_activate({x=pos.x+1,y=pos.y,z=pos.z})
|
|
end
|
|
n=minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).x==1 then
|
|
mcl_observers.observer_activate({x=pos.x-1,y=pos.y,z=pos.z})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==-1 then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z+1})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_o" and minetest.facedir_to_dir(n.param2).z==1 then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y,z=pos.z-1})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_u" then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y-1,z=pos.z})
|
|
end
|
|
n=minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z})
|
|
if n and n.name and string.sub(n.name,1,24)=="mcl_observers:observer_d" then
|
|
mcl_observers.observer_activate({x=pos.x,y=pos.y+1,z=pos.z})
|
|
end
|
|
end
|
|
end
|
|
|
|
else -- if realtime then ^^^ else:
|
|
minetest.register_abm({
|
|
label = "Observer node check",
|
|
nodenames = {"mcl_observers:observer_off", "mcl_observers:observer_down_off", "mcl_observers:observer_up_off"},
|
|
interval = 1,
|
|
chance = 1,
|
|
action = function(pos, node)
|
|
observer_scan(pos)
|
|
end,
|
|
})
|
|
end
|
|
--[[
|
|
With the following code the observer will detect loading of areas where it is placed.
|
|
We need to restore signal generated by it before the area was unloaded.
|
|
|
|
Observer movement and atomic clock (one observer watches another) fails without this often.
|
|
|
|
But it WILL cause wrong single signal for all other cases, and I hope it's nothing.
|
|
After all, why it can't detect the loading of areas, if we haven't a better solution...
|
|
]]
|
|
minetest.register_lbm({
|
|
name = "mcl_observers:activate_lbm",
|
|
nodenames = {
|
|
"mcl_observers:observer_off",
|
|
"mcl_observers:observer_down_off",
|
|
"mcl_observers:observer_up_off",
|
|
"mcl_observers:observer_on",
|
|
"mcl_observers:observer_down_on",
|
|
"mcl_observers:observer_up_on",
|
|
},
|
|
run_at_every_load = true,
|
|
action = function(pos)
|
|
minetest.after(1, mcl_observers.observer_activate, {x=pos.x, y=pos.y, z=pos.z})
|
|
end,
|
|
})
|