techpack/tubelib_addons1/pusher_fast.lua

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2018-03-10 22:14:57 +01:00
--[[
Tubelib Addons 1
================
Copyright (C) 2017-2018 Joachim Stolberg
LGPLv2.1+
See LICENSE.txt for more information
pusher_fast.lua:
Fast pusher for push/pull operation of StackItems from chests or other
inventory/server nodes to tubes or other inventory/server nodes.
The Pusher supports the following messages:
- topic = "on", payload = nil
- topic = "off", payload = nil
- topic = "state", payload = nil,
response is "running", "stopped", "standby", "blocked", or "not supported"
]]--
-- +--------+
-- / /|
-- +--------+ |
-- IN (L) -->| |x--> OUT (R)
-- | PUSHER | +
-- | |/
-- +--------+
local RUNNING_STATE = 10
local function switch_on(pos, node)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number")
meta:set_int("running", RUNNING_STATE)
meta:set_string("infotext", "Fast Pusher "..number..": running")
node.name = "tubelib_addons1:pusher_fast_active"
minetest.swap_node(pos, node)
minetest.get_node_timer(pos):start(1)
return false
end
local function switch_off(pos, node)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number")
meta:set_int("running", tubelib.STATE_STOPPED)
meta:set_string("infotext", "Fast Pusher "..number..": stopped")
node.name = "tubelib_addons1:pusher_fast"
minetest.swap_node(pos, node)
minetest.get_node_timer(pos):stop()
return false
end
local function goto_standby(pos, node)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number")
meta:set_int("running", tubelib.STATE_STANDBY)
meta:set_string("infotext", "Fast Pusher "..number..": standby")
node.name = "tubelib_addons1:pusher_fast"
minetest.swap_node(pos, node)
minetest.get_node_timer(pos):start(20)
return false
end
local function goto_blocked(pos, node)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number")
meta:set_int("running", tubelib.STATE_BLOCKED)
meta:set_string("infotext", "Fast Pusher "..number..": blocked")
node.name = "tubelib_addons1:pusher_fast"
minetest.swap_node(pos, node)
minetest.get_node_timer(pos):start(20)
return false
end
local function keep_running(pos, elapsed)
local meta = minetest.get_meta(pos)
local number = meta:get_string("number")
local running = meta:get_int("running") - 1
local player_name = meta:get_string("player_name")
local items = tubelib.pull_items(pos, "L", player_name) -- <<=== tubelib
if items ~= nil then
if tubelib.push_items(pos, "R", items, player_name) == false then -- <<=== tubelib
-- place item back
tubelib.unpull_items(pos, "L", items, player_name) -- <<=== tubelib
local node = minetest.get_node(pos)
return goto_blocked(pos, node)
end
meta:set_int("item_counter", meta:get_int("item_counter") + 1)
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if running <= 0 then
local node = minetest.get_node(pos)
return switch_on(pos, node)
else
-- reload running state
running = RUNNING_STATE
end
else
if running <= 0 then
local node = minetest.get_node(pos)
return goto_standby(pos, node)
end
end
meta:set_int("running", running)
return true
end
minetest.register_node("tubelib_addons1:pusher_fast", {
description = "Tubelib Fast Pusher",
tiles = {
-- up, down, right, left, back, front
'tubelib_addons1_pusher.png',
'tubelib_addons1_pusher.png',
'tubelib_outp.png',
'tubelib_inp.png',
"tubelib_addons1_pusher.png^[transformR180]",
"tubelib_addons1_pusher.png",
},
after_place_node = function(pos, placer)
local meta = minetest.get_meta(pos)
meta:set_string("player_name", placer:get_player_name())
local number = tubelib.add_node(pos, "tubelib_addons1:pusher_fast")
meta:set_string("number", number)
meta:set_string("infotext", "Pusher "..number..": stopped")
meta:set_int("item_counter", 0)
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end,
on_rightclick = function(pos, node, clicker)
if not minetest.is_protected(pos, clicker:get_player_name()) then
switch_on(pos, node)
end
end,
after_dig_node = function(pos)
tubelib.remove_node(pos)
end,
on_timer = keep_running,
on_rotate = screwdriver.disallow,
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paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = {choppy=2, cracky=2, crumbly=2},
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
minetest.register_node("tubelib_addons1:pusher_fast_active", {
description = "Tubelib Fast Pusher",
tiles = {
-- up, down, right, left, back, front
{
image = "tubelib_addons1_pusher_an.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.0,
},
},
{
image = "tubelib_addons1_pusher_an.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.0,
},
},
'tubelib_outp.png',
'tubelib_inp.png',
{
image = "tubelib_addons1_pusher_an.png^[transformR180]",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.0,
},
},
{
image = "tubelib_addons1_pusher_an.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.0,
},
},
},
on_rightclick = function(pos, node, clicker)
if not minetest.is_protected(pos, clicker:get_player_name()) then
switch_off(pos, node)
end
end,
on_timer = keep_running,
on_rotate = screwdriver.disallow,
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paramtype = "light",
sunlight_propagates = true,
paramtype2 = "facedir",
groups = {crumbly=0, not_in_creative_inventory=1},
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
minetest.register_craft({
output = "tubelib_addons1:pusher_fast",
recipe = {
{"", "tubelib:pusher", ""},
{"", "tubelib:pusher", ""},
{"", "tubelib:pusher", ""},
},
})
--------------------------------------------------------------- tubelib
tubelib.register_node("tubelib_addons1:pusher_fast", {"tubelib_addons1:pusher_fast_active"}, {
on_pull_item = nil, -- pusher has no inventory
on_push_item = nil, -- pusher has no inventory
on_unpull_item = nil, -- pusher has no inventory
is_pusher = true, -- is a pulling/pushing node
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on_recv_message = function(pos, topic, payload)
local node = minetest.get_node(pos)
if topic == "on" then
return switch_on(pos, node)
elseif topic == "off" then
return switch_off(pos, node)
elseif topic == "state" then
local meta = minetest.get_meta(pos)
local running = meta:get_int("running") or tubelib.STATE_STOPPED
return tubelib.statestring(running)
elseif topic == "counter" then
local meta = minetest.get_meta(pos)
return meta:get_int("item_counter")
elseif topic == "clear_counter" then
local meta = minetest.get_meta(pos)
return meta:set_int("item_counter", 0)
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else
return "not supported"
end
end,
})
--------------------------------------------------------------- tubelib