MoreMesecons/moremesecons_jammer/init.lua

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-- see wireless jammer
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local storage = minetest.get_mod_storage()
local jammers = moremesecons.load_MapDataStorage_legacy(storage, "jammers_v2",
"jammers")
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local function update_mod_storage()
storage:set_string("jammers_v2", jammers:serialize())
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end
local function add_jammer(pos)
if jammers:getAt(pos) then
return
end
jammers:setAt(pos, true)
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update_mod_storage()
end
local function remove_jammer(pos)
jammers:removeAt(pos)
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update_mod_storage()
end
local function is_jammed(pos)
local JAMMER_MAX_DISTANCE = moremesecons.setting("jammer", "max_distance", 10, 1)
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local minp = vector.subtract(pos, JAMMER_MAX_DISTANCE)
local maxp = vector.add(pos, JAMMER_MAX_DISTANCE)
for p in jammers:iter(minp, maxp) do
local d = vector.subtract(pos, p)
if d.x ^ 2 + d.y ^ 2 + d.z ^ 2 <= JAMMER_MAX_DISTANCE^2 then
return true
end
end
return false
end
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minetest.after(0, function() -- After loading all mods, override some functions
local jammed
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local actual_node_get = mesecon.get_node_force
local function temp_node_get(pos, ...)
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local node = actual_node_get(pos, ...)
if jammed == nil
and node then
jammed = is_jammed(pos)
end
return node
end
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local actual_is_conductor_off = mesecon.is_conductor_off
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local function temp_is_conductor_off(...)
if jammed then
-- go to the next elseif, there's is_effector
return
end
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local v = actual_is_conductor_off(...)
if v then
-- it continues to the next frontier
jammed = nil
end
return v
end
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local actual_is_effector = mesecon.is_effector
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local function temp_is_effector(...)
local abort_here = jammed
-- the last elseif before continuing, jammed needs to be nil then
jammed = nil
if abort_here then
return
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end
return actual_is_effector(...)
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end
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local actual_turnon = mesecon.turnon
function mesecon.turnon(...)
--set those to the temporary functions
mesecon.get_node_force = temp_node_get
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mesecon.is_conductor_off = temp_is_conductor_off
mesecon.is_effector = temp_is_effector
actual_turnon(...)
mesecon.get_node_force = actual_node_get
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mesecon.is_conductor_off = actual_is_conductor_off
mesecon.is_effector = actual_is_effector
-- safety
jammed = nil
end
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end)
mesecon.register_node("moremesecons_jammer:jammer", {
description = "Mesecons Jammer",
paramtype = "light",
},{
tiles = {"moremesecons_jammer_off.png"},
groups = {dig_immediate=2},
mesecons = {effector = {
action_on = function(pos)
add_jammer(pos)
minetest.sound_play("moremesecons_jammer", {pos = pos})
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minetest.swap_node(pos, {name="moremesecons_jammer:jammer_on"})
end
}},
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},{
tiles = {"moremesecons_jammer_on.png"},
groups = {dig_immediate=2, not_in_creative_inventory=1},
mesecons = {effector = {
action_off = function(pos)
remove_jammer(pos)
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minetest.swap_node(pos, {name="moremesecons_jammer:jammer_off"})
end
}},
on_destruct = remove_jammer,
on_construct = add_jammer,
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})
minetest.register_craft({
output = "moremesecons_jammer:jammer_off",
recipe = {{"group:mesecon_conductor_craftable", "default:mese", "group:mesecon_conductor_craftable"},
{"", "moremesecons_wireless:jammer_off", ""}}
})
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if moremesecons.setting("jammer", "enable_lbm", false) then
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minetest.register_lbm({
name = "moremesecons_jammer:add_jammer",
nodenames = {"moremesecons_jammer:jammer_on"},
run_at_every_load = true,
action = add_jammer
})
end