846cf32a5d
minetest.get_modpath() and generic Lua global variable checks changed to minetest.global_exists() function for all mods in modpack. This is the first change after moving modpack development from Minetest version 0.4.17.1 to 5.0.0. Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
84 lines
2.3 KiB
Lua
84 lines
2.3 KiB
Lua
--[[
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=======================================================================
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Tubelib Biogas Machines Mod
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by Micu (c) 2018
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Copyright (C) 2018 Michal Cieslakiewicz
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Helper file for all machines that accept water through pipes from
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'pipeworks' mod.
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Note: machine face orientation is apparently ignored by pipe logic,
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'back' for pipes means always param2 = 0 (z+).
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License: LGPLv2.1+
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=======================================================================
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]]--
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-- all pipeworks objects that can carry water but are not junctions
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local pipeworks_straight_object = {
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["pipeworks:straight_pipe_loaded"] = true,
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["pipeworks:entry_panel_loaded"] = true,
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["pipeworks:valve_on_loaded"] = true,
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["pipeworks:flow_sensor_loaded"] = true,
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}
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-- direction attributes for pipe connections
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local ctable = {
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["top"] = { dv = { x = 0, y = 1, z = 0 },
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p2 = { [17] = true } },
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["bottom"] = { dv = { x = 0, y = -1, z = 0 },
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p2 = { [17] = true } },
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["front"] = { dv = { x = 0, y = 0, z = -1 },
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p2 = { [0] = true, [2] = true } },
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["back"] = { dv = { x = 0, y = 0, z = 1 },
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p2 = { [0] = true, [2] = true } },
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["left"] = { dv = { x = -1, y = 0, z = 0 },
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p2 = { [1] = true, [3] = true } },
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["right"] = { dv = { x = 1, y = 0, z = 0 },
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p2 = { [1] = true, [3] = true } },
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}
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--[[
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------
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Public
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------
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]]--
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-- Check if machine is connected to pipe network and water flows into machine
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-- Parameters: node position, node object (optional)
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-- Returns: true if water is flowing into device node
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function biogasmachines.is_pipe_with_water(pos, opt_node)
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if not minetest.global_exists("pipeworks") then
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return false
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end
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local node = opt_node
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if not node then
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node = minetest.get_node_or_nil(pos)
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if not node then return false end
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end
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local node_def = minetest.registered_nodes[node.name]
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if not node_def then return false end
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local pipe_con = node_def.pipe_connections
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if not pipe_con then return false end
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for d, v in pairs(pipe_con) do
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if v then
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local d_node = minetest.get_node_or_nil(
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vector.add(pos, ctable[d].dv))
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if d_node and string.match(d_node.name,
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"^pipeworks:pipe_.*_loaded") then
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return true
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end
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if d_node and ctable[d].p2[d_node.param2]
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and pipeworks_straight_object[d_node.name]
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then
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return true
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end
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end
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end
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return false
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end
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