advtrains/advtrains/loading.lua

47 lines
1.3 KiB
Lua

-- Tracks for loading and unloading trains
-- Copyright (C) 2017 Gabriel Pérez-Cerezo <gabriel@gpcf.eu>
local function get_far_node(pos)
local node = minetest.get_node(pos)
if node.name == "ignore" then
minetest.get_voxel_manip():read_from_map(pos, pos)
node = minetest.get_node(pos)
end
return node
end
local function train_load(pos, train_id, unload)
local train=advtrains.trains[train_id]
local below = get_far_node({x=pos.x, y=pos.y-1, z=pos.z})
if not string.match(below.name, "chest") then
atprint("this is not a chest! at "..minetest.pos_to_string(pos))
return
end
local inv = minetest.get_inventory({type="node", pos={x=pos.x, y=pos.y-1, z=pos.z}})
if inv and train.velocity < 2 then
for k, v in ipairs(train.trainparts) do
local i=minetest.get_inventory({type="detached", name="advtrains_wgn_"..v})
if i then
if not unload then
for _, item in ipairs(inv:get_list("main")) do
if i:get_list("box") and i:room_for_item("box", item) then
i:add_item("box", item)
inv:remove_item("main", item)
end
end
else
for _, item in ipairs(i:get_list("box")) do
if inv:get_list("main") and inv:room_for_item("main", item) then
i:remove_item("box", item)
inv:add_item("main", item)
end
end
end
end
end
end
end