function digilines.getspec(node) if not minetest.registered_nodes[node.name] then return false end return minetest.registered_nodes[node.name].digiline end function digilines.importrules(spec, node) if type(spec) == 'function' then return spec(node) elseif spec then return spec else return digilines.rules.default end end function digilines.getAnyInputRules(pos) local node = digilines.get_node_force(pos) local spec = digilines.getspec(node) if not spec then return end if spec.wire then return digilines.importrules(spec.wire.rules, node) end if spec.effector then return digilines.importrules(spec.effector.rules, node) end end function digilines.getAnyOutputRules(pos) local node = digilines.get_node_force(pos) local spec = digilines.getspec(node) if not spec then return end if spec.wire then return digilines.importrules(spec.wire.rules, node) end if spec.receptor then return digilines.importrules(spec.receptor.rules, node) end end function digilines.rules_link(output, input) local outputrules = digilines.getAnyOutputRules(output) local inputrules = digilines.getAnyInputRules (input) if not outputrules or not inputrules then return false end for _, orule in ipairs(outputrules) do if digilines.cmpPos(digilines.addPosRule(output, orule), input) then for _, irule in ipairs(inputrules) do if digilines.cmpPos(digilines.addPosRule(input, irule), output) then return true end end end end return false end function digilines.rules_link_anydir(output, input) return digilines.rules_link(output, input) or digilines.rules_link(input, output) end local function queue_new() return {nextRead = 1, nextWrite = 1} end local function queue_empty(queue) return queue.nextRead == queue.nextWrite end local function queue_enqueue(queue, object) local nextWrite = queue.nextWrite queue[nextWrite] = object queue.nextWrite = nextWrite + 1 end local function queue_dequeue(queue) local nextRead = queue.nextRead local object = queue[nextRead] queue[nextRead] = nil queue.nextRead = nextRead + 1 return object end function digilines.transmit(pos, channel, msg, checked) digilines.vm_begin() local queue = queue_new() queue_enqueue(queue, pos) while not queue_empty(queue) do local curPos = queue_dequeue(queue) local node = digilines.get_node_force(curPos) local spec = digilines.getspec(node) if spec then -- Effector actions --> Receive if spec.effector then spec.effector.action(curPos, node, channel, msg) end -- Cable actions --> Transmit if spec.wire then local rules = digilines.importrules(spec.wire.rules, node) for _, rule in ipairs(rules) do local nextPos = digilines.addPosRule(curPos, rule) if digilines.rules_link(curPos, nextPos) then local checkedID = minetest.hash_node_position(nextPos) if not checked[checkedID] then checked[checkedID] = true queue_enqueue(queue, nextPos) end end end end end end digilines.vm_end() end