119 lines
3.9 KiB
Lua
119 lines
3.9 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, cr)
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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,cr=cr})
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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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changed=false
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for _,val in ipairs(tbl) do
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local node = minetest.env:get_node(val)
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local meta = minetest.env:get_meta(val)
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if node.name~="ignore" and (val.channel~=meta:get_string("channel") or val.cr~=meta:get_int("can_receive")) then
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val.channel=meta:get_string("channel")
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val.cr=meta:get_int("can_receive")
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changed=true
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end
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if val.cr==1 and 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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if changed then write_file(tbl) end
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return newtbl
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end
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teleport_noctr_textures={"pipeworks_teleport_tube_noctr.png","pipeworks_teleport_tube_noctr.png","pipeworks_teleport_tube_noctr.png",
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"pipeworks_teleport_tube_noctr.png","pipeworks_teleport_tube_noctr.png","pipeworks_teleport_tube_noctr.png"}
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teleport_plain_textures={"pipeworks_teleport_tube_plain.png","pipeworks_teleport_tube_plain.png","pipeworks_teleport_tube_plain.png",
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"pipeworks_teleport_tube_plain.png","pipeworks_teleport_tube_plain.png","pipeworks_teleport_tube_plain.png"}
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teleport_end_textures={"pipeworks_teleport_tube_end.png","pipeworks_teleport_tube_end.png","pipeworks_teleport_tube_end.png",
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"pipeworks_teleport_tube_end.png","pipeworks_teleport_tube_end.png","pipeworks_teleport_tube_end.png"}
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teleport_short_texture="pipeworks_teleport_tube_short.png"
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teleport_inv_texture="pipeworks_teleport_tube_inv.png"
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register_tube("pipeworks:teleport_tube","Teleporter pneumatic tube segment",teleport_plain_textures,
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teleport_noctr_textures,teleport_end_textures,teleport_short_texture,teleport_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_string("channel")
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local target=get_tubes_in_file(pos,channel)
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if target[1]==nil then return {} end
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d=math.random(1,#target)
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pos.x=target[d].x
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pos.y=target[d].y
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pos.z=target[d].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_string("channel","")
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meta:set_int("can_receive",1)
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meta:set_string("formspec","size[9,1;]"..
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"field[0,0.5;7,1;channel;Channel:;${channel}]"..
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"button[8,0;1,1;bt;On]")
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add_tube_in_file(pos,"")
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end,
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on_receive_fields = function(pos,formname,fields,sender)
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local meta = minetest.env:get_meta(pos)
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if fields.channel==nil then fields.channel=meta:get_string("channel") end
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meta:set_string("channel",fields.channel)
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remove_tube_in_file(pos)
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local cr = meta:get_int("can_receive")
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if fields["bt"] then
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cr=1-cr
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meta:set_int("can_receive",cr)
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if cr==1 then
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meta:set_string("formspec","size[9,1;]"..
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"field[0,0.5;7,1;channel;Channel:;${channel}]"..
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"button[8,0;1,1;bt;On]")
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else
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meta:set_string("formspec","size[9,1;]"..
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"field[0,0.5;7,1;channel;Channel:;${channel}]"..
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"button[8,0;1,1;bt;Off]")
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end
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end
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add_tube_in_file(pos,fields.channel, cr)
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end,
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on_destruct = function(pos)
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remove_tube_in_file(pos)
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end})
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