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-rw-r--r--pipeworks/new_flow_logic.lua121
1 files changed, 0 insertions, 121 deletions
diff --git a/pipeworks/new_flow_logic.lua b/pipeworks/new_flow_logic.lua
deleted file mode 100644
index 3fd1bb6..0000000
--- a/pipeworks/new_flow_logic.lua
+++ /dev/null
@@ -1,121 +0,0 @@
--- reimplementation of new_flow_logic branch: processing functions
--- written 2017 by thetaepsilon
-
-
-
--- global values and thresholds for water behaviour
--- TODO: add some way of setting this per-world
-local thresholds = {}
--- limit on pump pressure - will not absorb more than can be taken
-thresholds.pump_pressure = 2
-
-
-
--- 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
-
-
-
--- 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.
--- this should ensure that water blocks aren't vanished from existance.
--- will take care of zero or negative-valued limits.
-pipeworks.check_for_liquids_v2 = function(pos, limit)
- if not limit then
- limit = 6
- end
- 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
- return total
-end
-
-
-
-
-local label_pressure = "pipeworks.water_pressure"
-local label_haspressure = "pipeworks.is_pressure_node"
-pipeworks.balance_pressure = function(pos, node)
- -- debuglog("balance_pressure() "..node.name.." at "..pos.x.." "..pos.y.." "..pos.z)
- -- check the pressure of all nearby nodes, and average it out.
- -- for the moment, only balance neighbour nodes if it already has a pressure value.
- -- XXX: maybe this could be used to add fluid behaviour to other mod's nodes too?
-
- -- unconditionally include self in nodes to average over
- local meta = minetest.get_meta(pos)
- local currentpressure = meta:get_float(label_pressure)
- meta:set_int(label_haspressure, 1)
- local connections = { meta }
- local totalv = currentpressure
- local totalc = 1
-
- -- then handle neighbours, but if not a pressure node don't consider them at all
- for _, npos in ipairs(make_coords_offsets(pos, false)) do
- local neighbour = minetest.get_meta(npos)
- local haspressure = (neighbour:get_int(label_haspressure) ~= 0)
- if haspressure then
- local n = neighbour:get_float(label_pressure)
- table.insert(connections, neighbour)
- totalv = totalv + n
- totalc = totalc + 1
- end
- end
-
- local average = totalv / totalc
- for _, targetmeta in ipairs(connections) do
- targetmeta:set_float(label_pressure, average)
- end
-end
-
-
-
-pipeworks.run_pump_intake = function(pos, node)
- -- try to absorb nearby water nodes, but only up to limit.
- -- NB: check_for_liquids_v2 handles zero or negative from the following subtraction
- local meta = minetest.get_meta(pos)
- local currentpressure = meta:get_float(label_pressure)
- local intake_limit = thresholds.pump_pressure - currentpressure
- local actual_intake = pipeworks.check_for_liquids_v2(pos, intake_limit)
- local newpressure = actual_intake + currentpressure
- -- debuglog("oldpressure "..currentpressure.." intake_limit "..intake_limit.." actual_intake "..actual_intake.." newpressure "..newpressure)
- meta:set_float(label_pressure, newpressure)
-end
-
-
-
-pipeworks.run_spigot_output = function(pos, node)
- -- try to output a water source node if there's enough pressure and space below.
- local meta = minetest.get_meta(pos)
- local currentpressure = meta:get_float(label_pressure)
- if currentpressure > 1 then
- local below = {x=pos.x, y=pos.y-1, z=pos.z}
- local name = minetest.get_node(below).name
- if (name == "air") or (name == "default:water_flowing") then
- minetest.set_node(below, {name="default:water_source"})
- meta:set_float(label_pressure, currentpressure - 1)
- end
- end
-end