forked from mtcontrib/pipeworks
76 lines
1.7 KiB
Lua
76 lines
1.7 KiB
Lua
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filename=minetest.get_worldpath() .. "/teleport_tubes"
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function read_file()
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local f = io.open(filename, "r")
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if f==nil then return {} end
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local t = f:read("*all")
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f:close()
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if t=="" or t==nil then return {} end
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return minetest.deserialize(t)
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end
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function write_file(tbl)
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local f = io.open(filename, "w")
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f:write(minetest.serialize(tbl))
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f:close()
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end
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function add_tube_in_file(pos,channel)
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tbl=read_file()
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for _,val in ipairs(tbl) do
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if val.x==pos.x and val.y==pos.y and val.z==pos.z then
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return
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end
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end
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table.insert(tbl,{x=pos.x,y=pos.y,z=pos.z,channel=channel})
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write_file(tbl)
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end
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function remove_tube_in_file(pos)
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tbl=read_file()
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newtbl={}
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for _,val in ipairs(tbl) do
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if val.x~=pos.x or val.y~=pos.y or val.z~=pos.z then
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table.insert(newtbl,val)
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end
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end
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write_file(newtbl)
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end
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function get_tubes_in_file(pos,channel)
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tbl=read_file()
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newtbl={}
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for _,val in ipairs(tbl) do
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if val.channel==channel and (val.x~=pos.x or val.y~=pos.y or val.z~=pos.z) then
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table.insert(newtbl,val)
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end
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end
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return newtbl
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end
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register_tube("pipeworks:teleport_tube","Teleporter pneumatic tube segment",plain_textures,noctr_textures,end_textures,
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short_texture,inv_texture,
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{tube={can_go=function(pos,node,velocity,stack)
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velocity.x=0
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velocity.y=0
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velocity.z=0
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local meta = minetest.env:get_meta(pos)
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channel=meta:get_int("channel")
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goto=get_tubes_in_file(pos,channel)
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if goto[1]==nil then return {} end
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pos.x=goto[1].x
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pos.y=goto[1].y
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pos.z=goto[1].z
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return meseadjlist
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end},
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on_construct = function(pos)
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local meta = minetest.env:get_meta(pos)
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meta:set_int("channel",0)
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add_tube_in_file(pos,0)
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end,
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after_dig_node = function(pos)
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remove_tube_in_file(pos)
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end})
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