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-- INTERNAL
-- Receptors
-- Nodes that can power mesecons
function mesecon:is_receptor_node(nodename)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.receptor
and minetest.registered_nodes[nodename].mesecons.receptor.state == mesecon.state.on then
return true
end
for _, receptor in ipairs(mesecon.receptors) do
if receptor.onstate == nodename then
return true
end
end
return false
end
function mesecon:is_receptor_node_off(nodename, pos, ownpos)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.receptor
and minetest.registered_nodes[nodename].mesecons.receptor.state == mesecon.state.off then
return true
end
for _, receptor in ipairs(mesecon.receptors) do
if receptor.offstate == nodename then
return true
end
end
return false
end
function mesecon:receptor_get_rules(node)
if minetest.registered_nodes[node.name].mesecons
and minetest.registered_nodes[node.name].mesecons.receptor then
local rules = minetest.registered_nodes[node.name].mesecons.receptor.rules
if type(rules) == 'function' then
return rules(node)
elseif rules then
return rules
end
end
for _, receptor in ipairs(mesecon.receptors) do --TODO
if receptor.onstate == node.name or receptor.offstate == node.name then
if receptor.get_rules ~= nil then
return receptor.get_rules(node.param2)
elseif mesecon.receptors[i].rules ~=nil then
return receptor.rules
else
return mesecon:get_rules("default")
end
end
end
return mesecon.rules.default
end
-- Effectors
-- Nodes that can be powered by mesecons
function mesecon:is_effector_on(nodename)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.effector
and minetest.registered_nodes[nodename].mesecons.effector.action_off then
return true
end
for _, effector in ipairs(mesecon.effectors) do --TODO
if effector.onstate == nodename then
return true
end
end
return false
end
function mesecon:is_effector_off(nodename)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.effector
and minetest.registered_nodes[nodename].mesecons.effector.action_on then
return true
end
for _, effector in ipairs(mesecon.effectors) do --TODO
if effector.offstate == nodename then
return true
end
end
return false
end
function mesecon:is_effector(nodename)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.effector then
return true
end
return mesecon:is_effector_on(nodename) or mesecon:is_effector_off(nodename) --TODO
end
function mesecon:effector_get_input_rules(node)
if minetest.registered_nodes[node.name].mesecons
and minetest.registered_nodes[node.name].mesecons.effector then
local rules = minetest.registered_nodes[node.name].mesecons.effector.rules
if type(rules) == 'function' then
return rules(node)
elseif rules then
return rules
end
end
for _, effector in ipairs(mesecon.effectors) do
if effector.onstate == node.name
or effector.offstate == node.name then
if effector.get_input_rules ~= nil then
return effector.get_input_rules(node.param2)
elseif effector.input_rules ~=nil then
return effector.input_rules
else
return mesecon:get_rules("default")
end
end
end
return mesecon.rules.default
end
--Signals
function mesecon:activate(pos, node)
if minetest.registered_nodes[node.name]
and minetest.registered_nodes[node.name].mesecons
and minetest.registered_nodes[node.name].mesecons.effector
and minetest.registered_nodes[node.name].mesecons.effector.action_on then
minetest.registered_nodes[node.name].mesecons.effector.action_on (pos, node)
end
for _, action in ipairs(mesecon.actions_on) do --TODO
action(pos, node)
end
end
function mesecon:deactivate(pos, node) --TODO
if minetest.registered_nodes[node.name]
and minetest.registered_nodes[node.name].mesecons
and minetest.registered_nodes[node.name].mesecons.effector
and minetest.registered_nodes[node.name].mesecons.effector.action_off then
minetest.registered_nodes[node.name].mesecons.effector.action_off(pos, node)
end
for _, action in ipairs(mesecon.actions_off) do
action(pos, node)
end
end
function mesecon:changesignal(pos, node) --TODO
if minetest.registered_nodes[node.name]
and minetest.registered_nodes[node.name].mesecons
and minetest.registered_nodes[node.name].mesecons.effector
and minetest.registered_nodes[node.name].mesecons.effector.action_change then
minetest.registered_nodes[node.name].mesecons.effector.action_change(pos, node)
end
for _, action in ipairs(mesecon.actions_change) do
action(pos, node)
end
end
--Rules
function mesecon:add_rules(name, rules)
mesecon.rules[name] = rules
end
function mesecon:get_rules(name)
return mesecon.rules[name]
end
-- Conductors
function mesecon:get_conductor_on(offstate)
if minetest.registered_nodes[offstate]
and minetest.registered_nodes[offstate].mesecons
and minetest.registered_nodes[offstate].mesecons.conductor then
return minetest.registered_nodes[offstate].mesecons.conductor.onstate
end
for _, conductor in ipairs(mesecon.conductors) do --TODO
if conductor.offstate == offstate then
return conductor.onstate
end
end
return false
end
function mesecon:get_conductor_off(onstate)
if minetest.registered_nodes[onstate]
and minetest.registered_nodes[onstate].mesecons
and minetest.registered_nodes[onstate].mesecons.conductor then
return minetest.registered_nodes[onstate].mesecons.conductor.offstate
end
for _, conductor in ipairs(mesecon.conductors) do --TODO
if conductor.onstate == onstate then
return conductor.offstate
end
end
return false
end
function mesecon:is_conductor_on(nodename)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.conductor
and minetest.registered_nodes[nodename].mesecons.conductor.state == mesecon.state.on then
return true
end
for _, conductor in ipairs(mesecon.conductors) do --TODO
if conductor.onstate == nodename then
return true
end
end
return false
end
function mesecon:is_conductor_off(nodename)
if minetest.registered_nodes[nodename]
and minetest.registered_nodes[nodename].mesecons
and minetest.registered_nodes[nodename].mesecons.conductor
and minetest.registered_nodes[nodename].mesecons.conductor.state == mesecon.state.off then
return true
end
for _, conductor in ipairs(mesecon.conductors) do --TODO
if conductor.offstate == nodename then
return true
end
end
return false
end
function mesecon:is_conductor(nodename)
--TODO
return mesecon:is_conductor_on(nodename) or mesecon:is_conductor_off(nodename)
end
function mesecon:conductor_get_rules(node)
if minetest.registered_nodes[node.name]
and minetest.registered_nodes[node.name].mesecons
and minetest.registered_nodes[node.name].mesecons.conductor then
local rules = minetest.registered_nodes[node.name].mesecons.conductor.rules
if type(rules) == 'function' then
return rules(node)
elseif rules then
return rules
end
end
for _, conductor in ipairs(mesecon.conductors) do --TODO
if conductor.onstate == node.name
or conductor.offstate == node.name then
if conductor.get_rules ~= nil then
return conductor.get_rules(node.param2)
else
return conductor.rules
end
end
end
return mesecon.rules.default
end
--
function mesecon:is_power_on(pos)
local node = minetest.env:get_node(pos)
if mesecon:is_conductor_on(node.name) or mesecon:is_receptor_node(node.name) then
return true
end
return false
end
function mesecon:is_power_off(pos)
local node = minetest.env:get_node(pos)
if mesecon:is_conductor_off(node.name) or mesecon:is_receptor_node_off(node.name) then
return true
end
return false
end
function mesecon:turnon(pos)
local node = minetest.env:get_node(pos)
if mesecon:is_conductor_off(node.name) then
local rules = mesecon:conductor_get_rules(node)
mesecon:swap_node(pos, mesecon:get_conductor_on(node.name))
for _, rule in ipairs(rules) do
local np = mesecon:addPosRule(pos, rule)
if mesecon:rules_link(pos, np) then
mesecon:turnon(np)
end
end
end
if mesecon:is_effector(node.name) then
mesecon:changesignal(pos, node)
if mesecon:is_effector_off(node.name) then
mesecon:activate(pos, node)
end
end
end
function mesecon:turnoff(pos) --receptor rules used because output could have been dug
local node = minetest.env:get_node(pos)
if mesecon:is_conductor_on(node.name) then
local rules = mesecon:conductor_get_rules(node)
mesecon:swap_node(pos, mesecon:get_conductor_off(node.name))
for _, rule in ipairs(rules) do
local np = mesecon:addPosRule(pos, rule)
if mesecon:rules_link(pos, np) then
mesecon:turnoff(np)
end
end
end
if mesecon:is_effector(node.name) then
mesecon:changesignal(pos, node)
if mesecon:is_effector_on(node.name)
and not mesecon:is_powered(pos) then
mesecon:deactivate(pos, node)
end
end
end
function mesecon:connected_to_pw_src(pos, checked)
local c = 1
checked = checked or {}
while checked[c] ~= nil do --find out if node has already been checked (to prevent from endless loop)
if mesecon:cmpPos(checked[c], pos) then
return false, checked
end
c = c + 1
end
checked[c] = {x=pos.x, y=pos.y, z=pos.z} --add current node to checked
local node = minetest.env:get_node_or_nil(pos)
if node == nil then return false, checked end
if not mesecon:is_conductor(node.name) then return false, checked end
if mesecon:is_powered_by_receptor(pos) then --return if conductor is powered
return true, checked
end
--Check if conductors around are connected
local connected
local rules = mesecon:conductor_get_rules(node)
for _, rule in ipairs(rules) do
local np = mesecon:addPosRule(pos, rule)
if mesecon:rules_link(pos, np) then
connected, checked = mesecon:connected_to_pw_src(np, checked)
if connected then
return true
end
end
end
return false, checked
end
function mesecon:rules_link(output, input, dug_outputrules) --output/input are positions (outputrules optional, used if node has been dug)
local outputnode = minetest.env:get_node(output)
local inputnode = minetest.env:get_node(input)
local outputrules = dug_outputrules
local inputrules
if outputrules == nil then
if mesecon:is_conductor(outputnode.name) then
outputrules = mesecon:conductor_get_rules(outputnode)
elseif mesecon:is_receptor_node(outputnode.name) or mesecon:is_receptor_node_off(outputnode.name) then
outputrules = mesecon:receptor_get_rules(outputnode)
else
return false
end
end
if mesecon:is_conductor(inputnode.name) then
inputrules = mesecon:conductor_get_rules(inputnode)
elseif mesecon:is_effector(inputnode.name) then
inputrules = mesecon:effector_get_input_rules(inputnode)
else
return false
end
for _, outputrule in ipairs(outputrules) do
if mesecon:cmpPos(mesecon:addPosRule(output, outputrule), input) then -- Check if output sends to input
for _, inputrule in ipairs(inputrules) do
if mesecon:cmpPos(mesecon:addPosRule(input, inputrule), output) then --Check if input accepts from output
return true
end
end
end
end
return false
end
function mesecon:rules_link_bothdir(pos1, pos2)
return mesecon:rules_link(pos1, pos2) or mesecon:rules_link(pos2, pos1)
end
function mesecon:is_powered_by_conductor(pos)
local j = 1
local k = 1
local rules
local con_pos = {}
local con_rules = {}
local con_node
local node = minetest.env:get_node(pos)
if mesecon:is_conductor(node.name) then
rules = mesecon:conductor_get_rules(node)
elseif mesecon:is_effector(node.name) then
rules = mesecon:effector_get_input_rules(node)
else
return false
end
for _, rule in ipairs(rules) do
local con_pos = mesecon:addPosRule(pos, rule)
con_node = minetest.env:get_node(con_pos)
if mesecon:is_conductor_on(con_node.name) and mesecon:rules_link(con_pos, pos) then
return true
end
end
return false
end
function mesecon:is_powered_by_receptor(pos)
local j = 1
local k = 1
local rules
local rcpt_pos = {}
local rcpt_rules = {}
local rcpt_node
local node = minetest.env:get_node(pos)
if mesecon:is_conductor(node.name) then
rules = mesecon:conductor_get_rules(node)
elseif mesecon:is_effector(node.name) then
rules = mesecon:effector_get_input_rules(node)
else
return false
end
for _, rule in ipairs(rules) do
local rcpt_pos = mesecon:addPosRule(pos, rule)
rcpt_node = minetest.env:get_node(rcpt_pos)
if mesecon:is_receptor_node(rcpt_node.name) and mesecon:rules_link(rcpt_pos, pos) then
return true
end
end
return false
end
function mesecon:is_powered(pos)
return mesecon:is_powered_by_conductor(pos) or mesecon:is_powered_by_receptor(pos)
end
function mesecon:updatenode(pos)
if mesecon:connected_to_pw_src(pos) then
mesecon:turnon(pos)
else
mesecon:turnoff(pos)
end
end
--Rules rotation Functions:
function mesecon:rotate_rules_right(rules)
local nr={};
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].z=rule.x
nr[i].x=-rule.z
nr[i].y=rule.y
end
return nr
end
function mesecon:rotate_rules_left(rules)
local nr={};
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].z=-rules[i].x
nr[i].x=rules[i].z
nr[i].y=rules[i].y
end
return nr
end
function mesecon:rotate_rules_down(rules)
local nr={};
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].y=rule.x
nr[i].x=-rule.y
nr[i].z=rule.z
end
return nr
end
function mesecon:rotate_rules_up(rules)
local nr={};
for i, rule in ipairs(rules) do
nr[i]={}
nr[i].y=-rule.x
nr[i].x=rule.y
nr[i].z=rule.z
end
return nr
end
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