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playerdetector: short code and don't get scanname for every object

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This commit is contained in:
HybridDog 2016-01-03 14:37:52 +01:00
parent f56c4ce35c
commit c1d0481f8f
1 changed files with 96 additions and 97 deletions
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181
mesecons_detector/init.lua
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@ -4,16 +4,18 @@ local GET_COMMAND = "GET"
-- Detects players in a certain radius -- Detects players in a certain radius
-- The radius can be specified in mesecons/settings.lua -- The radius can be specified in mesecons/settings.lua
local object_detector_make_formspec = function (pos) local function object_detector_make_formspec(pos)
local meta = minetest.get_meta(pos) minetest.get_meta(pos):set_string("formspec", "size[9,2.5]" ..
meta:set_string("formspec", "size[9,2.5]" ..
"field[0.3, 0;9,2;scanname;Name of player to scan for (empty for any):;${scanname}]".. "field[0.3, 0;9,2;scanname;Name of player to scan for (empty for any):;${scanname}]"..
"field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]".. "field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]"..
"button_exit[7,0.75;2,3;;Save]") "button_exit[7,0.75;2,3;;Save]")
end end
local object_detector_on_receive_fields = function(pos, formname, fields) local function object_detector_on_receive_fields(pos, _, fields)
if not fields.scanname or not fields.digiline_channel then return end; if not fields.scanname
or not fields.digiline_channel then
return
end
local meta = minetest.get_meta(pos) local meta = minetest.get_meta(pos)
meta:set_string("scanname", fields.scanname) meta:set_string("scanname", fields.scanname)
@ -22,12 +24,18 @@ local object_detector_on_receive_fields = function(pos, formname, fields)
end end
-- returns true if player was found, false if not -- returns true if player was found, false if not
local object_detector_scan = function (pos) local function object_detector_scan(pos)
local objs = minetest.get_objects_inside_radius(pos, mesecon.setting("detector_radius", 6)) local objs = minetest.get_objects_inside_radius(pos, mesecon.setting("detector_radius", 6))
for k, obj in pairs(objs) do if not next(objs) then
local isname = obj:get_player_name() -- "" is returned if it is not a player; "" ~= nil! return false
end
local scanname = minetest.get_meta(pos):get_string("scanname") local scanname = minetest.get_meta(pos):get_string("scanname")
if (isname == scanname and isname ~= "") or (isname ~= "" and scanname == "") then -- player with scanname found or not scanname specified local every_player = scanname == ""
for _,obj in pairs(objs) do
local isname = obj:get_player_name() -- "" is returned if it is not a player; "" ~= nil!
if isname ~= ""
and (every_player or isname == scanname) then -- no scanname specified or player with scanname found
return true return true
end end
end end
@ -39,8 +47,7 @@ local object_detector_digiline = {
effector = { effector = {
action = function(pos, node, channel, msg) action = function(pos, node, channel, msg)
local meta = minetest.get_meta(pos) local meta = minetest.get_meta(pos)
local active_channel = meta:get_string("digiline_channel") if channel == meta:get_string("digiline_channel") then
if channel == active_channel then
meta:set_string("scanname", msg) meta:set_string("scanname", msg)
object_detector_make_formspec(pos) object_detector_make_formspec(pos)
end end
@ -89,43 +96,49 @@ minetest.register_craft({
} }
}) })
minetest.register_abm( minetest.register_abm({
{nodenames = {"mesecons_detector:object_detector_off"}, nodenames = {"mesecons_detector:object_detector_off"},
interval = 1.0, interval = 1,
chance = 1, chance = 1,
action = function(pos) action = function(pos, node)
if object_detector_scan(pos) then if not object_detector_scan(pos) then
minetest.swap_node(pos, {name = "mesecons_detector:object_detector_on"}) return
mesecon.receptor_on(pos, mesecon.rules.pplate)
end end
node.name = "mesecons_detector:object_detector_on"
minetest.swap_node(pos, node)
mesecon.receptor_on(pos, mesecon.rules.pplate)
end, end,
}) })
minetest.register_abm( minetest.register_abm({
{nodenames = {"mesecons_detector:object_detector_on"}, nodenames = {"mesecons_detector:object_detector_on"},
interval = 1.0, interval = 1,
chance = 1, chance = 1,
action = function(pos) action = function(pos, node)
if not object_detector_scan(pos) then if object_detector_scan(pos) then
minetest.swap_node(pos, {name = "mesecons_detector:object_detector_off"}) return
mesecon.receptor_off(pos, mesecon.rules.pplate)
end end
node.name = "mesecons_detector:object_detector_off"
minetest.swap_node(pos, node)
mesecon.receptor_off(pos, mesecon.rules.pplate)
end, end,
}) })
-- Node detector -- Node detector
-- Detects the node in front of it -- Detects the node in front of it
local node_detector_make_formspec = function (pos) local function node_detector_make_formspec(pos)
local meta = minetest.get_meta(pos) minetest.get_meta(pos):set_string("formspec", "size[9,2.5]" ..
meta:set_string("formspec", "size[9,2.5]" ..
"field[0.3, 0;9,2;scanname;Name of node to scan for (empty for any):;${scanname}]".. "field[0.3, 0;9,2;scanname;Name of node to scan for (empty for any):;${scanname}]"..
"field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]".. "field[0.3,1.5;4,2;digiline_channel;Digiline Channel (optional):;${digiline_channel}]"..
"button_exit[7,0.75;2,3;;Save]") "button_exit[7,0.75;2,3;;Save]")
end end
local node_detector_on_receive_fields = function(pos, formname, fields) local function node_detector_on_receive_fields(pos, _, fields)
if not fields.scanname or not fields.digiline_channel then return end; if not fields.scanname
or not fields.digiline_channel then
return
end
local meta = minetest.get_meta(pos) local meta = minetest.get_meta(pos)
meta:set_string("scanname", fields.scanname) meta:set_string("scanname", fields.scanname)
@ -134,17 +147,17 @@ local node_detector_on_receive_fields = function(pos, formname, fields)
end end
-- returns true if player was found, false if not -- returns true if player was found, false if not
local node_detector_scan = function (pos) local function node_detector_scan(pos)
if not pos then return end
local node = minetest.get_node_or_nil(pos) local node = minetest.get_node_or_nil(pos)
if not node then return end if not node then
local scandir = minetest.facedir_to_dir(node.param2) return
if not scandir then return end end
local frontpos = vector.subtract(pos, scandir) local frontname = minetest.get_node(
local frontnode = minetest.get_node(frontpos) vector.subtract(pos, minetest.facedir_to_dir(node.param2))
).name
local meta = minetest.get_meta(pos) local meta = minetest.get_meta(pos)
return (frontnode.name == meta:get_string("scanname")) or return (frontname == meta:get_string("scanname")) or
(frontnode.name ~= "air" and frontnode.name ~= "ignore" and meta:get_string("scanname") == "") (frontname ~= "air" and frontname ~= "ignore" and meta:get_string("scanname") == "")
end end
-- set player name when receiving a digiline signal on a specific channel -- set player name when receiving a digiline signal on a specific channel
@ -152,22 +165,42 @@ local node_detector_digiline = {
effector = { effector = {
action = function(pos, node, channel, msg) action = function(pos, node, channel, msg)
local meta = minetest.get_meta(pos) local meta = minetest.get_meta(pos)
local active_channel = meta:get_string("digiline_channel") if channel ~= meta:get_string("digiline_channel") then
if channel == active_channel then return
end
if msg == GET_COMMAND then if msg == GET_COMMAND then
local frontpos = vector.subtract(pos, minetest.facedir_to_dir(node.param2)) digiline:receptor_send(pos, digiline.rules.default, channel,
local name = minetest.get_node(frontpos).name minetest.get_node(
digiline:receptor_send(pos, digiline.rules.default, channel, name) vector.subtract(pos, minetest.facedir_to_dir(node.param2))
).name
)
else else
meta:set_string("scanname", msg) meta:set_string("scanname", msg)
node_detector_make_formspec(pos) node_detector_make_formspec(pos)
end end
end
end, end,
}, },
receptor = {} receptor = {}
} }
local function after_place_node_detector(pos, placer)
local placer_pos = placer:getpos()
if not placer_pos then
return
end
--correct for the player's height
if placer:is_player() then
placer_pos.y = placer_pos.y + 1.625
end
--correct for 6d facedir
local node = minetest.get_node(pos)
node.param2 = minetest.dir_to_facedir(vector.subtract(pos, placer_pos), true)
minetest.set_node(pos, node)
--minetest.log("action", "real (6d) facedir: " .. node.param2)
end
minetest.register_node("mesecons_detector:node_detector_off", { minetest.register_node("mesecons_detector:node_detector_off", {
tiles = {"default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "jeija_node_detector_off.png"}, tiles = {"default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "default_steel_block.png", "jeija_node_detector_off.png"},
paramtype = "light", paramtype = "light",
@ -180,25 +213,7 @@ minetest.register_node("mesecons_detector:node_detector_off", {
}}, }},
on_construct = node_detector_make_formspec, on_construct = node_detector_make_formspec,
on_receive_fields = node_detector_on_receive_fields, on_receive_fields = node_detector_on_receive_fields,
after_place_node = function (pos, placer) after_place_node = after_place_node_detector,
local placer_pos = placer:getpos()
--correct for the player's height
if placer:is_player() then placer_pos.y = placer_pos.y + 1.5 end
--correct for 6d facedir
if placer_pos then
local dir = {
x = pos.x - placer_pos.x,
y = pos.y - placer_pos.y,
z = pos.z - placer_pos.z
}
local node = minetest.get_node(pos)
node.param2 = minetest.dir_to_facedir(dir, true)
minetest.set_node(pos, node)
minetest.log("action", "real (6d) facedir: " .. node.param2)
end
end,
sounds = default.node_sound_stone_defaults(), sounds = default.node_sound_stone_defaults(),
digiline = node_detector_digiline digiline = node_detector_digiline
}) })
@ -215,25 +230,7 @@ minetest.register_node("mesecons_detector:node_detector_on", {
}}, }},
on_construct = node_detector_make_formspec, on_construct = node_detector_make_formspec,
on_receive_fields = node_detector_on_receive_fields, on_receive_fields = node_detector_on_receive_fields,
after_place_node = function (pos, placer) after_place_node = after_place_node_detector,
local placer_pos = placer:getpos()
--correct for the player's height
if placer:is_player() then placer_pos.y = placer_pos.y + 1.5 end
--correct for 6d facedir
if placer_pos then
local dir = {
x = pos.x - placer_pos.x,
y = pos.y - placer_pos.y,
z = pos.z - placer_pos.z
}
local node = minetest.get_node(pos)
node.param2 = minetest.dir_to_facedir(dir, true)
minetest.set_node(pos, node)
minetest.log("action", "real (6d) facedir: " .. node.param2)
end
end,
sounds = default.node_sound_stone_defaults(), sounds = default.node_sound_stone_defaults(),
digiline = node_detector_digiline digiline = node_detector_digiline
}) })
@ -247,25 +244,27 @@ minetest.register_craft({
} }
}) })
minetest.register_abm( minetest.register_abm({
{nodenames = {"mesecons_detector:node_detector_off"}, nodenames = {"mesecons_detector:node_detector_off"},
interval = 1.0, interval = 1,
chance = 1, chance = 1,
action = function(pos, node) action = function(pos, node)
if node_detector_scan(pos) then if node_detector_scan(pos) then
minetest.swap_node(pos, {name = "mesecons_detector:node_detector_on", param2 = node.param2}) node.name = "mesecons_detector:node_detector_on"
minetest.swap_node(pos, node)
mesecon.receptor_on(pos) mesecon.receptor_on(pos)
end end
end, end,
}) })
minetest.register_abm( minetest.register_abm({
{nodenames = {"mesecons_detector:node_detector_on"}, nodenames = {"mesecons_detector:node_detector_on"},
interval = 1.0, interval = 1,
chance = 1, chance = 1,
action = function(pos, node) action = function(pos, node)
if not node_detector_scan(pos) then if not node_detector_scan(pos) then
minetest.swap_node(pos, {name = "mesecons_detector:node_detector_off", param2 = node.param2}) node.name = "mesecons_detector:node_detector_off"
minetest.swap_node(pos, node)
mesecon.receptor_off(pos) mesecon.receptor_off(pos)
end end
end, end,