From e98e4e268b5faf898a0b8f580d7da2b46ead05c4 Mon Sep 17 00:00:00 2001 From: thetaepsilon-gamedev Date: Sun, 8 Oct 2017 14:27:40 +0100 Subject: new flow logic: flowable node registry: add initial support for transition triggers --- new_flow_logic/flowable_node_registry.lua | 6 +++ new_flow_logic/flowable_node_registry_install.lua | 50 +++++++++++++++++++++++ 2 files changed, 56 insertions(+) diff --git a/new_flow_logic/flowable_node_registry.lua b/new_flow_logic/flowable_node_registry.lua index b0634d0..7651928 100644 --- a/new_flow_logic/flowable_node_registry.lua +++ b/new_flow_logic/flowable_node_registry.lua @@ -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. diff --git a/new_flow_logic/flowable_node_registry_install.lua b/new_flow_logic/flowable_node_registry_install.lua index 0be9fc0..63151f0 100644 --- a/new_flow_logic/flowable_node_registry_install.lua +++ b/new_flow_logic/flowable_node_registry_install.lua @@ -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 -- cgit v1.2.3