forked from VoxeLibre/VoxeLibre
129 lines
3.8 KiB
Lua
129 lines
3.8 KiB
Lua
local rules_flat = {
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{ x = 0, y = 0, z = -1 },
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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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-- 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)
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local node = minetest.get_node(pos)
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local front = vector.add(pos, minetest.facedir_to_dir(node.param2))
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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 ~= "" then
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if not (frontnode.name == oldnode and frontnode.param2) then
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-- Node state changed! Activate observer
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minetest.set_node(pos, {name = "mcl_observers:observer_on", param2 = node.param2})
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mesecon.receptor_on(pos)
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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", frontnode.param2)
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end
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return frontnode
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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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-- TODO: Add to craft guide and creative inventory when it's useful
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groups = {pickaxey=1, material_stone=1, not_in_craft_guide=1, not_in_creative_inventory=1 },
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on_rotate = false,
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_mcl_blast_resistance = 17.5,
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_mcl_hardness = 3.5,
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},
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{
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description = "Observer",
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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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observer_scan(pos)
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end,
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-- DEBUG code to manually turn on an observer by rightclick.
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-- TODO: Remove this when observers are complete.
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on_rightclick = function(pos, node, clicker)
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minetest.set_node(pos, {name = "mcl_observers:observer_on", param2 = node.param2})
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mesecon.receptor_on(pos)
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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_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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-- 1 redstone tick = 0.1 seconds
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timer:start(0.1)
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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)
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end,
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}
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)
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-- Regularily check the observer nodes.
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-- TODO: This is rather slow and clunky. Find a more efficient way to do this.
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minetest.register_abm({
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nodenames = {"mcl_observers:observer_off"},
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interval = 1,
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chance = 1,
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action = function(pos, node)
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observer_scan(pos)
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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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