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Diffstat (limited to 'pipeworks/new_flow_logic/abms.lua')
| -rw-r--r-- | pipeworks/new_flow_logic/abms.lua | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/pipeworks/new_flow_logic/abms.lua b/pipeworks/new_flow_logic/abms.lua deleted file mode 100644 index 0b0b799..0000000 --- a/pipeworks/new_flow_logic/abms.lua +++ /dev/null @@ -1,324 +0,0 @@ --- reimplementation of new_flow_logic branch: processing functions --- written 2017 by thetaepsilon - - - -local flowlogic = {} -flowlogic.helpers = {} -pipeworks.flowlogic = flowlogic - - - --- borrowed from above: might be useable to replace the above coords tables -local make_coords_offsets = function(pos, include_base) - local coords = { - {x=pos.x,y=pos.y-1,z=pos.z}, - {x=pos.x,y=pos.y+1,z=pos.z}, - {x=pos.x-1,y=pos.y,z=pos.z}, - {x=pos.x+1,y=pos.y,z=pos.z}, - {x=pos.x,y=pos.y,z=pos.z-1}, - {x=pos.x,y=pos.y,z=pos.z+1}, - } - if include_base then table.insert(coords, pos) end - return coords -end - - - --- local debuglog = function(msg) print("## "..msg) end - - - -local formatvec = function(vec) local sep="," return "("..tostring(vec.x)..sep..tostring(vec.y)..sep..tostring(vec.z)..")" end - --- new version of liquid check --- accepts a limit parameter to only delete water blocks that the receptacle can accept, --- and returns it so that the receptacle can update it's pressure values. -local check_for_liquids_v2 = function(pos, limit) - local coords = make_coords_offsets(pos, false) - local total = 0 - for index, tpos in ipairs(coords) do - if total >= limit then break end - local name = minetest.get_node(tpos).name - if name == "default:water_source" then - minetest.remove_node(tpos) - total = total + 1 - end - end - --pipeworks.logger("check_for_liquids_v2@"..formatvec(pos).." total "..total) - return total -end -flowlogic.check_for_liquids_v2 = check_for_liquids_v2 - - - -local label_pressure = "pipeworks.water_pressure" -local get_pressure_access = function(pos) - local metaref = minetest.get_meta(pos) - return { - get = function() - return metaref:get_float(label_pressure) - end, - set = function(v) - metaref:set_float(label_pressure, v) - end - } -end - - --- logging is unreliable when something is crashing... -local nilexplode = function(caller, label, value) - if value == nil then - error(caller..": "..label.." was nil") - end -end - - - -local finitemode = pipeworks.toggles.finite_water -flowlogic.run = function(pos, node) - local nodename = node.name - -- get the current pressure value. - local nodepressure = get_pressure_access(pos) - local currentpressure = nodepressure.get() - local oldpressure = currentpressure - - -- if node is an input: run intake phase - local inputdef = pipeworks.flowables.inputs.list[nodename] - if inputdef then - currentpressure = flowlogic.run_input(pos, node, currentpressure, inputdef) - --debuglog("post-intake currentpressure is "..currentpressure) - --nilexplode("run()", "currentpressure", currentpressure) - end - - -- balance pressure with neighbours - currentpressure = flowlogic.balance_pressure(pos, node, currentpressure) - - -- if node is an output: run output phase - local outputdef = pipeworks.flowables.outputs.list[nodename] - if outputdef then - currentpressure = flowlogic.run_output( - pos, - node, - currentpressure, - oldpressure, - outputdef, - finitemode) - end - - -- if node has pressure transitions: determine new node - if pipeworks.flowables.transitions.list[nodename] then - local newnode = flowlogic.run_transition(node, currentpressure) - --pipeworks.logger("flowlogic.run()@"..formatvec(pos).." transition, new node name = "..dump(newnode).." pressure "..tostring(currentpressure)) - minetest.swap_node(pos, newnode) - flowlogic.run_transition_post(pos, newnode) - end - - -- set the new pressure - nodepressure.set(currentpressure) -end - - - -flowlogic.balance_pressure = function(pos, node, currentpressure) - -- debuglog("balance_pressure() "..node.name.." at "..pos.x.." "..pos.y.." "..pos.z) - -- check the pressure of all nearby flowable nodes, and average it out. - - -- pressure handles to average over - local connections = {} - -- unconditionally include self in nodes to average over. - -- result of averaging will be returned as new pressure for main flow logic callback - local totalv = currentpressure - local totalc = 1 - - -- get list of node neighbours. - -- if this node is directional and only flows on certain sides, - -- invoke the callback to retrieve the set. - -- for simple flowables this is just an auto-gen'd list of all six possible neighbours. - local candidates = {} - if pipeworks.flowables.list.simple[node.name] then - candidates = make_coords_offsets(pos, false) - end - - -- then handle neighbours, but if not a pressure node don't consider them at all - for _, npos in ipairs(candidates) do - local nodename = minetest.get_node(npos).name - -- for now, just check if it's in the simple table. - -- TODO: the "can flow from" logic in flowable_node_registry.lua - local haspressure = (pipeworks.flowables.list.simple[nodename]) - if haspressure then - local neighbour = get_pressure_access(npos) - --pipeworks.logger("balance_pressure @ "..formatvec(pos).." "..nodename.." "..formatvec(npos).." added to neighbour set") - local n = neighbour.get() - table.insert(connections, neighbour) - totalv = totalv + n - totalc = totalc + 1 - end - end - - local average = totalv / totalc - for _, target in ipairs(connections) do - target.set(average) - end - - return average -end - - - -flowlogic.run_input = function(pos, node, currentpressure, inputdef) - -- intakefn allows a given input node to define it's own intake logic. - -- this function will calculate the maximum amount of water that can be taken in; - -- the intakefn will be given this and is expected to return the actual absorption amount. - - local maxpressure = inputdef.maxpressure - local intake_limit = maxpressure - currentpressure - if intake_limit <= 0 then return currentpressure end - - local actual_intake = inputdef.intakefn(pos, intake_limit) - --pipeworks.logger("run_input@"..formatvec(pos).." oldpressure "..currentpressure.." intake_limit "..intake_limit.." actual_intake "..actual_intake) - if actual_intake <= 0 then return currentpressure end - - local newpressure = actual_intake + currentpressure - --debuglog("run_input() end, oldpressure "..currentpressure.." intake_limit "..intake_limit.." actual_intake "..actual_intake.." newpressure "..newpressure) - return newpressure -end - - - --- flowlogic output helper implementation: --- outputs water by trying to place water nodes nearby in the world. --- neighbours is a list of node offsets to try placing water in. --- this is a constructor function, returning another function which satisfies the output helper requirements. --- note that this does *not* take rotation into account. -flowlogic.helpers.make_neighbour_output_fixed = function(neighbours) - return function(pos, node, currentpressure, finitemode) - local taken = 0 - for _, offset in pairs(neighbours) do - local npos = vector.add(pos, offset) - local name = minetest.get_node(npos).name - if currentpressure < 1 then break end - -- take pressure anyway in non-finite mode, even if node is water source already. - -- in non-finite mode, pressure has to be sustained to keep the sources there. - -- so in non-finite mode, placing water is dependent on the target node; - -- draining pressure is not. - local canplace = (name == "air") or (name == "default:water_flowing") - if canplace then - minetest.swap_node(npos, {name="default:water_source"}) - end - if (not finitemode) or canplace then - taken = taken + 1 - currentpressure = currentpressure - 1 - end - end - return taken - end -end - --- complementary function to the above when using non-finite mode: --- removes water sources from neighbor positions when the output is "off" due to lack of pressure. -flowlogic.helpers.make_neighbour_cleanup_fixed = function(neighbours) - return function(pos, node, currentpressure) - --pipeworks.logger("neighbour_cleanup_fixed@"..formatvec(pos)) - for _, offset in pairs(neighbours) do - local npos = vector.add(pos, offset) - local name = minetest.get_node(npos).name - if (name == "default:water_source") then - --pipeworks.logger("neighbour_cleanup_fixed removing "..formatvec(npos)) - minetest.remove_node(npos) - end - end - end -end - - - -flowlogic.run_output = function(pos, node, currentpressure, oldpressure, outputdef, finitemode) - -- processing step for water output devices. - -- takes care of checking a minimum pressure value and updating the resulting pressure level - -- the outputfn is provided the current pressure and returns the pressure "taken". - -- as an example, using this with the above spigot function, - -- the spigot function tries to output a water source if it will fit in the world. - --pipeworks.logger("flowlogic.run_output() pos "..formatvec(pos).." old -> currentpressure "..tostring(oldpressure).." "..tostring(currentpressure).." finitemode "..tostring(finitemode)) - local upper = outputdef.upper - local lower = outputdef.lower - local result = currentpressure - local threshold = nil - if finitemode then threshold = lower else threshold = upper end - if currentpressure > threshold then - local takenpressure = outputdef.outputfn(pos, node, currentpressure, finitemode) - local newpressure = currentpressure - takenpressure - if newpressure < 0 then newpressure = 0 end - result = newpressure - end - if (not finitemode) and (currentpressure < lower) and (oldpressure < lower) then - --pipeworks.logger("flowlogic.run_output() invoking cleanup currentpressure="..tostring(currentpressure)) - outputdef.cleanupfn(pos, node, currentpressure) - end - return result -end - - - --- determine which node to switch to based on current pressure -flowlogic.run_transition = function(node, currentpressure) - local simplesetdef = pipeworks.flowables.transitions.simple[node.name] - local result = node - local found = false - - -- simple transition sets: assumes all nodes in the set share param values. - if simplesetdef then - -- assumes that the set has been checked to contain at least one element... - local nodename_prev = simplesetdef[1].nodename - local result_nodename = node.name - - for index, element in ipairs(simplesetdef) do - -- find the highest element that is below the current pressure. - local threshold = element.threshold - if threshold > currentpressure then - result_nodename = nodename_prev - found = true - break - end - nodename_prev = element.nodename - end - - -- use last element if no threshold is greater than current pressure - if not found then - result_nodename = nodename_prev - found = true - end - - -- preserve param1/param2 values - result = { name=result_nodename, param1=node.param1, param2=node.param2 } - end - - if not found then - pipeworks.logger("flowlogic.run_transition() BUG no transition definitions found! nodename="..nodename.." currentpressure="..tostring(currentpressure)) - end - - return result -end - --- post-update hook for run_transition --- among other things, updates mesecons if present. --- node here means the new node, returned from run_transition() above -flowlogic.run_transition_post = function(pos, node) - local mesecons_def = minetest.registered_nodes[node.name].mesecons - local mesecons_rules = pipeworks.flowables.transitions.mesecons[node.name] - if minetest.global_exists("mesecon") and (mesecons_def ~= nil) and mesecons_rules then - if type(mesecons_def) ~= "table" then - pipeworks.logger("flowlogic.run_transition_post() BUG mesecons def for "..node.name.."not a table: got "..tostring(mesecons_def)) - else - local receptor = mesecons_def.receptor - if receptor then - local state = receptor.state - if state == mesecon.state.on then - mesecon.receptor_on(pos, mesecons_rules) - elseif state == mesecon.state.off then - mesecon.receptor_off(pos, mesecons_rules) - end - end - end - end -end |