From d900279e1da4056c4bb34d6d049b6032a820b20a Mon Sep 17 00:00:00 2001 From: Wuzzy Date: Wed, 10 Jan 2018 19:30:30 +0100 Subject: [PATCH] Implement basic node scan of observers --- mods/ITEMS/REDSTONE/mcl_observers/init.lua | 46 +++++++++++++++++++++- 1 file changed, 44 insertions(+), 2 deletions(-) diff --git a/mods/ITEMS/REDSTONE/mcl_observers/init.lua b/mods/ITEMS/REDSTONE/mcl_observers/init.lua index bfa13a2f..9f01417e 100644 --- a/mods/ITEMS/REDSTONE/mcl_observers/init.lua +++ b/mods/ITEMS/REDSTONE/mcl_observers/init.lua @@ -9,13 +9,42 @@ local get_rules_flat = function(node) return rules end +-- Scan the node in front of the observer +-- and update the observer state if needed. +-- TODO: Also scan metadata changes. +-- TODO: Ignore some node changes. +local observer_scan = function(pos) + local node = minetest.get_node(pos) + local front = vector.add(pos, minetest.facedir_to_dir(node.param2)) + local frontnode = minetest.get_node(front) + local meta = minetest.get_meta(pos) + local oldnode = meta:get_string("node_name") + local oldparam2 = meta:get_string("node_param2") + local meta_needs_updating = false + if oldnode ~= "" then + if not (frontnode.name == oldnode and frontnode.param2) then + -- Node state changed! Activate observer + minetest.set_node(pos, {name = "mcl_observers:observer_on", param2 = node.param2}) + mesecon.receptor_on(pos) + meta_needs_updating = true + end + else + meta_needs_updating = true + end + if meta_needs_updating then + meta:set_string("node_name", frontnode.name) + meta:set_string("node_param2", frontnode.param2) + end + return frontnode +end + mesecon.register_node("mcl_observers:observer", { is_ground_content = false, sounds = mcl_sounds.node_sound_stone_defaults(), paramtype2 = "facedir", -- TODO: Add to craft guide and creative inventory when it's useful - groups = {pickaxey=1, not_in_craft_guide=1, not_in_creative_inventory=1 }, + groups = {pickaxey=1, material_stone=1, not_in_craft_guide=1, not_in_creative_inventory=1 }, on_rotate = false, _mcl_blast_resistance = 17.5, _mcl_hardness = 3.5, @@ -27,11 +56,13 @@ mesecon.register_node("mcl_observers:observer", "mcl_observers_observer_side.png", "mcl_observers_observer_side.png", "mcl_observers_observer_front.png", "mcl_observers_observer_back.png", }, - -- TODO: Detect node and state changes mesecons = { receptor = { state = mesecon.state.off, rules = get_rules_flat, }}, + on_construct = function(pos) + observer_scan(pos) + end, -- DEBUG code to manually turn on an observer by rightclick. -- TODO: Remove this when observers are complete. @@ -66,6 +97,17 @@ mesecon.register_node("mcl_observers:observer", } ) +-- Regularily check the observer nodes. +-- TODO: This is rather slow and clunky. Find a more efficient way to do this. +minetest.register_abm({ + nodenames = {"mcl_observers:observer_off"}, + interval = 1, + chance = 1, + action = function(pos, node) + observer_scan(pos) + end, +}) + minetest.register_craft({ output = "mcl_observers:observer_off",