forked from mtcontrib/pipeworks
new flow logic: abms.lua: use flowable nodes registry to determine viable neighbours
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@ -49,8 +49,9 @@ flowlogic.check_for_liquids_v2 = check_for_liquids_v2
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--local formatvec = function(vec) local sep="," return "("..tostring(vec.x)..sep..tostring(vec.y)..sep..tostring(vec.z)..")" end
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local label_pressure = "pipeworks.water_pressure"
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local label_haspressure = "pipeworks.is_pressure_node"
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flowlogic.balance_pressure = function(pos, node)
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-- debuglog("balance_pressure() "..node.name.." at "..pos.x.." "..pos.y.." "..pos.z)
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-- check the pressure of all nearby nodes, and average it out.
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@ -60,16 +61,19 @@ flowlogic.balance_pressure = function(pos, node)
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-- unconditionally include self in nodes to average over
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local meta = minetest.get_meta(pos)
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local currentpressure = meta:get_float(label_pressure)
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meta:set_int(label_haspressure, 1)
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local connections = { meta }
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local totalv = currentpressure
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local totalc = 1
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-- then handle neighbours, but if not a pressure node don't consider them at all
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for _, npos in ipairs(make_coords_offsets(pos, false)) do
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local nodename = minetest.get_node(npos).name
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local neighbour = minetest.get_meta(npos)
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local haspressure = (neighbour:get_int(label_haspressure) ~= 0)
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-- for now, just check if it's in the simple table.
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-- TODO: the "can flow from" logic in flowable_node_registry.lua
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local haspressure = (pipeworks.flowables.list.simple[nodename])
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if haspressure then
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--pipeworks.logger("balance_pressure @ "..formatvec(pos).." "..nodename.." "..formatvec(npos).." added to neighbour set")
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local n = neighbour:get_float(label_pressure)
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table.insert(connections, neighbour)
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totalv = totalv + n
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