74 lines
1.8 KiB
Lua
74 lines
1.8 KiB
Lua
--[[
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Signs Bot
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=========
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Copyright (C) 2019-2021 Joachim Stolberg
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GPL v3
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See LICENSE.txt for more information
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Signal function
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]]--
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-- for lazy programmers
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local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
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local S2P = minetest.string_to_pos
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local M = minetest.get_meta
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-- Used by the pairing tool
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function signs_bot.get_node_type(pos)
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local node = tubelib2.get_node_lvm(pos)
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local ndef = minetest.registered_nodes[node.name]
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local is_sensor = minetest.get_item_group(node.name, "sign_bot_sensor") == 1
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if ndef then
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if ndef.signs_bot_get_signal and is_sensor then
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return "repeater"
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elseif ndef.signs_bot_get_signal then
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return "actuator"
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elseif is_sensor then
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return "sensor"
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end
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end
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end
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-- Used by the pairing tool
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function signs_bot.get_signal(actuator_pos)
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if actuator_pos then
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local node = tubelib2.get_node_lvm(actuator_pos)
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local ndef = minetest.registered_nodes[node.name]
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if ndef and ndef.signs_bot_get_signal then
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return ndef.signs_bot_get_signal(actuator_pos, node)
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end
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end
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end
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-- Used by the pairing tool
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function signs_bot.store_signal(sensor_pos, dest_pos, signal)
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local meta = sensor_pos and M(sensor_pos)
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if meta then
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meta:set_string("signal_pos", P2S(dest_pos))
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meta:set_string("signal_data", signal)
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end
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end
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--
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-- Send a signal from a sensor to a actuator
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--
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function signs_bot.send_signal(sensor_pos)
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local meta = sensor_pos and M(sensor_pos)
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if meta then
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local dest_pos = meta:get_string("signal_pos")
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local signal = meta:get_string("signal_data")
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if dest_pos ~= "" and signal ~= "" then
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local pos = S2P(dest_pos)
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local node = tubelib2.get_node_lvm(pos)
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local ndef = minetest.registered_nodes[node.name]
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if ndef and ndef.signs_bot_on_signal then
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ndef.signs_bot_on_signal(pos, node, signal)
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end
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end
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end
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end
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