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new flow logic: flowable node registry: add initial support for transition triggers

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thetaepsilon-gamedev 2017-10-08 14:27:40 +01:00
parent 7e09da50c2
commit e98e4e268b
2 changed files with 56 additions and 0 deletions
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6
new_flow_logic/flowable_node_registry.lua
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@ -27,6 +27,12 @@ pipeworks.flowables.outputs = {}
pipeworks.flowables.outputs.list = {}
-- not currently any nodenames arraylist for this one as it's not currently needed.
-- nodes with registered node transitions
-- nodes will be switched depending on pressure level
pipeworks.flowables.transitions = {}
pipeworks.flowables.transitions.list = {} -- master list
pipeworks.flowables.transitions.simple = {} -- nodes that change based purely on pressure
-- checks if a given node can flow in a given direction.

50
new_flow_logic/flowable_node_registry_install.lua
View File

@ -120,3 +120,53 @@ register.output_simple = function(nodename, upper, lower, neighbours)
local cleanupfn = pipeworks.flowlogic.helpers.make_neighbour_cleanup_fixed(neighbours)
register.output(nodename, upper, lower, outputfn, cleanupfn)
end
-- common base checking for transition nodes
-- ensures the node has only been registered once as a transition.
local transition_list = pipeworks.flowables.transitions.list
local insert_transition_base = function(nodename)
checkbase(nodename)
if transition_list[nodename] then duplicateerr("base transition", nodename) end
transition_list[nodename] = true
end
-- register a simple transition set.
-- expects a table with nodenames as keys and threshold pressures as values.
-- internally, the table is sorted by value, and when one of these nodes needs to transition,
-- the table is searched starting from the lowest (even if it's value is non-zero),
-- until a value is found which is higher than or equal to the current node pressure.
-- ex. nodeset = { ["mod:level_0"] = 0, ["mod:level_1"] = 1, --[[ ... ]] }
local simpleseterror = function(msg)
error("register.transition_simple_set(): "..msg)
end
local simple_transitions = pipeworks.flowables.transitions.simple
register.transition_simple_set = function(nodeset)
local set = {}
for nodename, value in pairs(nodeset) do
if type(nodename) ~= "string" then simpleseterror("nodename key "..tostring(nodename).."was not a string!") end
if type(value) ~= "number" then simpleseterror("pressure value "..tostring(value).."was not a number!") end
insert_transition_base(nodename)
if simple_transitions[nodename] then duplicateerr("simple transition set", nodename) end
-- assigning set to table is done separately below
table.insert(set, { nodename=nodename, threshold=value })
end
-- sort pressure values, smallest first
local smallest_first = function(a, b)
return a.value < b.value
end
table.sort(set, smallest_first)
-- individual registration of each node, all sharing this set,
-- so each node in the set will transition to the correct target node.
for _, element in ipairs(set) do
--pipeworks.logger("register.transition_simple_set() after sort: nodename "..element.nodename.." value "..tostring(element.threshold))
simple_transitions[element.nodename] = set
end
end