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264 lines
10 KiB
Lua
264 lines
10 KiB
Lua
-- flowable node registry: add entries and install ABMs if new flow logic is enabled
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-- written 2017 by thetaepsilon
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-- use for hooking up ABMs as nodes are registered
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local abmregister = pipeworks.flowlogic.abmregister
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-- registration functions
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pipeworks.flowables.register = {}
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local register = pipeworks.flowables.register
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-- some sanity checking for passed args, as this could potentially be made an external API eventually
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local checkexists = function(nodename)
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if type(nodename) ~= "string" then error("pipeworks.flowables nodename must be a string!") end
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return pipeworks.flowables.list.all[nodename]
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end
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local insertbase = function(nodename)
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if checkexists(nodename) then error("pipeworks.flowables duplicate registration!") end
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pipeworks.flowables.list.all[nodename] = true
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-- table.insert(pipeworks.flowables.list.nodenames, nodename)
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if pipeworks.toggles.pipe_mode == "pressure" then
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abmregister.flowlogic(nodename)
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end
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end
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local regwarning = function(kind, nodename)
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--~ local tail = ""
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--~ if pipeworks.toggles.pipe_mode ~= "pressure" then tail = " but pressure logic not enabled" end
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--pipeworks.logger(kind.." flow logic registry requested for "..nodename..tail)
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end
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-- Register a node as a simple flowable.
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-- Simple flowable nodes have no considerations for direction of flow;
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-- A cluster of adjacent simple flowables will happily average out in any direction.
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register.simple = function(nodename)
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insertbase(nodename)
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pipeworks.flowables.list.simple[nodename] = true
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table.insert(pipeworks.flowables.list.simple_nodenames, nodename)
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regwarning("simple", nodename)
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end
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-- Register a node as a directional flowable:
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-- has a helper function which determines which nodes to consider valid neighbours.
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register.directional = function(nodename, neighbourfn, directionfn)
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insertbase(nodename)
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pipeworks.flowables.list.directional[nodename] = {
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neighbourfn = neighbourfn,
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directionfn = directionfn
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}
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regwarning("directional", nodename)
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end
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-- register a node as a directional flowable that can only flow through either the top or bottom side.
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-- used for fountainheads (bottom side) and pumps (top side).
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-- this is in world terms, not facedir relative!
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register.directional_vertical_fixed = function(nodename, topside)
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local y
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if topside then y = 1 else y = -1 end
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local side = { x=0, y=y, z=0 }
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local neighbourfn = function(node) return { side } end
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local directionfn = function(node, direction)
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return vector.equals(direction, side)
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end
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register.directional(nodename, neighbourfn, directionfn)
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end
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-- register a node as a directional flowable whose accepting sides depends upon param2 rotation.
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-- used for entry panels, valves, flow sensors and spigots.
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-- this is mostly for legacy reasons and SHOULD NOT BE USED IN NEW CODE.
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register.directional_horizonal_rotate = function(nodename, doubleended)
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local rotations = {
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{x= 0,y= 0,z= 1},
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{x= 1,y= 0,z= 0},
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{x= 0,y= 0,z=-1},
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{x=-1,y= 0,z= 0},
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}
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local getends = function(node)
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--local dname = "horizontal rotate getends() "
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local param2 = node.param2
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-- the pipeworks nodes use a fixed value for vertical facing nodes
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-- if that is detected, just return that directly.
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if param2 == 17 then
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return {{x=0,y=1,z=0}, {x=0,y=-1,z=0}}
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end
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-- the sole end of the spigot points in the direction the rotation bits suggest
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-- also note to self: lua arrays start at one...
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local mainend = (param2 % 4) + 1
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-- use modulus wrap-around to find other end for straight-run devices like the valve
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local otherend = ((param2 + 2) % 4) + 1
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local mainrot = rotations[mainend]
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--pipeworks.logger(dname.."mainrot: "..dump(mainrot))
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local result
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if doubleended then
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result = { mainrot, rotations[otherend] }
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else
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result = { mainrot }
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end
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--pipeworks.logger(dname.."result: "..dump(result))
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return result
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end
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local neighbourfn = function(node)
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return getends(node)
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end
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local directionfn = function(node, direction)
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local result = false
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for _, endvec in ipairs(getends(node)) do
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if vector.equals(direction, endvec) then result = true end
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end
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return result
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end
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register.directional(nodename, neighbourfn, directionfn)
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end
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local checkbase = function(nodename)
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if not checkexists(nodename) then error("pipeworks.flowables node doesn't exist as a flowable!") end
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end
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local duplicateerr = function(kind, nodename) error(kind.." duplicate registration for "..nodename) end
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-- Registers a node as a fluid intake.
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-- intakefn is used to determine the water that can be taken in a node-specific way.
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-- Expects node to be registered as a flowable (is present in flowables.list.all),
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-- so that water can move out of it.
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-- maxpressure is the maximum pipeline pressure that this node can drive;
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-- if the input's node exceeds this the callback is not run.
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-- possible WISHME here: technic-driven high-pressure pumps
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register.intake = function(nodename, maxpressure, intakefn)
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-- check for duplicate registration of this node
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local list = pipeworks.flowables.inputs.list
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checkbase(nodename)
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if list[nodename] then duplicateerr("pipeworks.flowables.inputs", nodename) end
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list[nodename] = { maxpressure=maxpressure, intakefn=intakefn }
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regwarning("intake", nodename)
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end
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-- Register a node as a simple intake:
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-- tries to absorb water source nodes from it's surroundings.
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-- may exceed limit slightly due to needing to absorb whole nodes.
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register.intake_simple = function(nodename, maxpressure)
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register.intake(nodename, maxpressure, pipeworks.flowlogic.check_for_liquids_v2)
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end
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-- Register a node as an output.
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-- Expects node to already be a flowable.
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-- upper and lower thresholds have different meanings depending on whether finite liquid mode is in effect.
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-- if not (the default unless auto-detected),
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-- nodes above their upper threshold have their outputfn invoked (and pressure deducted),
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-- nodes between upper and lower are left idle,
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-- and nodes below lower have their cleanup fn invoked (to say remove water sources).
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-- the upper and lower difference acts as a hysteresis to try and avoid "gaps" in the flow.
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-- if finite mode is on, upper is ignored and lower is used to determine whether to run outputfn;
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-- cleanupfn is ignored in this mode as finite mode assumes something causes water to move itself.
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register.output = function(nodename, upper, lower, outputfn, cleanupfn)
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if pipeworks.flowables.outputs.list[nodename] then
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error("pipeworks.flowables.outputs duplicate registration!")
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end
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checkbase(nodename)
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pipeworks.flowables.outputs.list[nodename] = {
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upper=upper,
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lower=lower,
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outputfn=outputfn,
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cleanupfn=cleanupfn,
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}
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-- output ABM now part of main flow logic ABM to preserve ordering.
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-- note that because outputs have to be a flowable first
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-- (and the installation of the flow logic ABM is conditional),
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-- registered output nodes for new_flow_logic is also still conditional on the enable flag.
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regwarning("output node", nodename)
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end
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-- register a simple output:
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-- drains pressure by attempting to place water in nearby nodes,
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-- which can be set by passing a list of offset vectors.
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-- will attempt to drain as many whole nodes as there are positions in the offset list.
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-- for meanings of upper and lower, see register.output() above.
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-- non-finite mode:
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-- above upper pressure: places water sources as appropriate, keeps draining pressure.
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-- below lower presssure: removes it's neighbour water sources.
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-- finite mode:
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-- same as for above pressure in non-finite mode,
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-- but only drains pressure when water source nodes are actually placed.
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register.output_simple = function(nodename, upper, lower, neighbours)
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local outputfn = pipeworks.flowlogic.helpers.make_neighbour_output_fixed(neighbours)
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local cleanupfn = pipeworks.flowlogic.helpers.make_neighbour_cleanup_fixed(neighbours)
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register.output(nodename, upper, lower, outputfn, cleanupfn)
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end
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-- common base checking for transition nodes
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-- ensures the node has only been registered once as a transition.
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local transition_list = pipeworks.flowables.transitions.list
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local insert_transition_base = function(nodename)
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checkbase(nodename)
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if transition_list[nodename] then duplicateerr("base transition", nodename) end
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transition_list[nodename] = true
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end
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-- register a simple transition set.
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-- expects a table with nodenames as keys and threshold pressures as values.
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-- internally, the table is sorted by value, and when one of these nodes needs to transition,
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-- the table is searched starting from the lowest (even if it's value is non-zero),
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-- until a value is found which is higher than or equal to the current node pressure.
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-- ex. nodeset = { ["mod:level_0"] = 0, ["mod:level_1"] = 1, --[[ ... ]] }
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local simpleseterror = function(msg)
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error("register.transition_simple_set(): "..msg)
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end
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local simple_transitions = pipeworks.flowables.transitions.simple
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register.transition_simple_set = function(nodeset, extras)
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local set = {}
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if extras == nil then extras = {} end
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local length = #nodeset
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if length < 2 then simpleseterror("nodeset needs at least two elements!") end
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for index, element in ipairs(nodeset) do
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if type(element) ~= "table" then simpleseterror("element "..tostring(index).." in nodeset was not table!") end
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local nodename = element[1]
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local value = element[2]
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if type(nodename) ~= "string" then simpleseterror("nodename "..tostring(nodename).."was not a string!") end
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if type(value) ~= "number" then simpleseterror("pressure value "..tostring(value).."was not a number!") end
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insert_transition_base(nodename)
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if simple_transitions[nodename] then duplicateerr("simple transition set", nodename) end
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-- assigning set to table is done separately below
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table.insert(set, { nodename=nodename, threshold=value })
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end
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-- sort pressure values, smallest first
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local smallest_first = function(a, b)
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return a.threshold < b.threshold
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end
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table.sort(set, smallest_first)
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-- individual registration of each node, all sharing this set,
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-- so each node in the set will transition to the correct target node.
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for _, element in ipairs(set) do
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--pipeworks.logger("register.transition_simple_set() after sort: nodename "..element.nodename.." value "..tostring(element.threshold))
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simple_transitions[element.nodename] = set
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end
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-- handle extra options
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-- if mesecons rules table was passed, set for each node
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if extras.mesecons then
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local mesecons_rules = pipeworks.flowables.transitions.mesecons
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for _, element in ipairs(set) do
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mesecons_rules[element.nodename] = extras.mesecons
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end
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end
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end
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