--[[ autorouting for pipes To connect pipes to some node, include this in the node def... pipe_connections = { pattern = , -- if supplied, search for this pattern instead of the exact node name left = , -- true (or 1) if the left side of the node needs to connect to a pipe right = , -- or from the right side, etc. top = , bottom = , front = , back = , left_param2 = , -- the node must have this param2 to connect from the left right_param2 = , -- or right, etc. top_param2 = , -- Omit some or all of these to skip checking param2 for those sides bottom_param2 = , front_param2 = , back_param2 = , }, ...then add, pipeworks.scan_for_pipe_objects(pos) to your node's after_dig_node and after_place_node callbacks. ]]-- -- get the axis dir (just 6 faces) of target node, assumes the pipe is the axis function pipeworks.get_axis_dir(nodetable, pattern) local pxm,pxp,pym,pyp,pzm,pzp if string.find(nodetable.nxm.name, pattern) and minetest.facedir_to_dir(nodetable.nxm.param2).x ~= 0 then pxm=1 end if string.find(nodetable.nxp.name, pattern) and minetest.facedir_to_dir(nodetable.nxp.param2).x ~= 0 then pxp=1 end if string.find(nodetable.nzm.name, pattern) and minetest.facedir_to_dir(nodetable.nzm.param2).z ~= 0 then pzm=1 end if string.find(nodetable.nzp.name, pattern) and minetest.facedir_to_dir(nodetable.nzp.param2).z ~= 0 then pzp=1 end if string.find(nodetable.nym.name, pattern) and minetest.facedir_to_dir(nodetable.nym.param2).y ~= 0 then pym=1 end if string.find(nodetable.nyp.name, pattern) and minetest.facedir_to_dir(nodetable.nyp.param2).y ~= 0 then pyp=1 end local match = pxm or pxp or pym or pyp or pzm or pzp return match,pxm,pxp,pym,pyp,pzm,pzp end local tube_table = {[0] = 1, 2, 2, 4, 2, 4, 4, 5, 2, 3, 4, 6, 4, 6, 5, 7, 2, 4, 3, 6, 4, 5, 6, 7, 4, 6, 6, 8, 5, 7, 7, 9, 2, 4, 4, 5, 3, 6, 6, 7, 4, 6, 5, 7, 6, 8, 7, 9, 4, 5, 6, 7, 6, 7, 8, 9, 5, 7, 7, 9, 7, 9, 9, 10} local tube_table_facedirs = {[0] = 0, 0, 5, 0, 3, 4, 3, 0, 2, 0, 2, 0, 6, 4, 3, 0, 7, 12, 5, 12, 7, 4, 5, 5, 18, 20, 16, 0, 7, 4, 7, 0, 1, 8, 1, 1, 1, 13, 1, 1, 10, 8, 2, 2, 17, 4, 3, 6, 9, 9, 9, 9, 21, 13, 1, 1, 10, 10, 11, 2, 19, 4, 3, 0} local function autoroute_pipes(pos) local nctr = minetest.get_node(pos) local state = "_empty" if (string.find(nctr.name, "pipeworks:pipe_") == nil) then return end if (string.find(nctr.name, "_loaded") ~= nil) then state = "_loaded" end local nsurround = pipeworks.scan_pipe_surroundings(pos) if nsurround == 0 then nsurround = 9 end minetest.swap_node(pos, {name = "pipeworks:pipe_"..tube_table[nsurround]..state, param2 = tube_table_facedirs[nsurround]}) end function pipeworks.scan_for_pipe_objects(pos) autoroute_pipes({ x=pos.x-1, y=pos.y , z=pos.z }) autoroute_pipes({ x=pos.x+1, y=pos.y , z=pos.z }) autoroute_pipes({ x=pos.x , y=pos.y-1, z=pos.z }) autoroute_pipes({ x=pos.x , y=pos.y+1, z=pos.z }) autoroute_pipes({ x=pos.x , y=pos.y , z=pos.z-1 }) autoroute_pipes({ x=pos.x , y=pos.y , z=pos.z+1 }) autoroute_pipes(pos) end -- auto-rotation code for various devices the pipes attach to function pipeworks.scan_pipe_surroundings(pos) local pxm=0 local pxp=0 local pym=0 local pyp=0 local pzm=0 local pzp=0 local nxm = minetest.get_node({ x=pos.x-1, y=pos.y , z=pos.z }) local nxp = minetest.get_node({ x=pos.x+1, y=pos.y , z=pos.z }) local nym = minetest.get_node({ x=pos.x , y=pos.y-1, z=pos.z }) local nyp = minetest.get_node({ x=pos.x , y=pos.y+1, z=pos.z }) local nzm = minetest.get_node({ x=pos.x , y=pos.y , z=pos.z-1 }) local nzp = minetest.get_node({ x=pos.x , y=pos.y , z=pos.z+1 }) local nodetable = { nxm = nxm, nxp = nxp, nym = nym, nyp = nyp, nzm = nzm, nzp = nzp } -- standard handling for pipes... if string.find(nxm.name, "pipeworks:pipe_") then pxm=1 end if string.find(nxp.name, "pipeworks:pipe_") then pxp=1 end if string.find(nym.name, "pipeworks:pipe_") then pym=1 end if string.find(nyp.name, "pipeworks:pipe_") then pyp=1 end if string.find(nzm.name, "pipeworks:pipe_") then pzm=1 end if string.find(nzp.name, "pipeworks:pipe_") then pzp=1 end -- Special handling for valves... local match,a,b,c,d,e,f = pipeworks.get_axis_dir(nodetable, "pipeworks:valve") if match then pxm = a or pxm pxp = b or pxp pym = c or pym pyp = d or pyp pzm = e or pzm pzp = f or pzp end -- ...flow sensors... local match,a,b,c,d,e,f = pipeworks.get_axis_dir(nodetable, "pipeworks:flow_sensor") if match then pxm = a or pxm pxp = b or pxp pym = c or pym pyp = d or pyp pzm = e or pzm pzp = f or pzp end -- ...sealed pipe entry/exit... local match,a,b,c,d,e,f = pipeworks.get_axis_dir(nodetable, "pipeworks:entry_panel") if match then pxm = a or pxm pxp = b or pxp pym = c or pym pyp = d or pyp pzm = e or pzm pzp = f or pzp end -- ...straight-only pipe... local match,a,b,c,d,e,f = pipeworks.get_axis_dir(nodetable, "pipeworks:straight_pipe") if match then pxm = a or pxm pxp = b or pxp pym = c or pym pyp = d or pyp pzm = e or pzm pzp = f or pzp end -- ... other nodes local def_left = minetest.registered_nodes[nxp.name] -- the node that {pos} is to the left of (not the local def_right = minetest.registered_nodes[nxm.name] -- ...note that is AT the left!), etc. local def_bottom = minetest.registered_nodes[nyp.name] local def_top = minetest.registered_nodes[nym.name] local def_front = minetest.registered_nodes[nzp.name] local def_back = minetest.registered_nodes[nzm.name] if def_left and def_left.pipe_connections and def_left.pipe_connections.left and (not def_left.pipe_connections.pattern or string.find(nxp.name, def_left.pipe_connections.pattern)) and (not def_left.pipe_connections.left_param2 or (nxp.param2 == def_left.pipe_connections.left_param2)) then pxp = 1 end if def_right and def_right.pipe_connections and def_right.pipe_connections.right and (not def_right.pipe_connections.pattern or string.find(nxm.name, def_right.pipe_connections.pattern)) and (not def_right.pipe_connections.right_param2 or (nxm.param2 == def_right.pipe_connections.right_param2)) then pxm = 1 end if def_top and def_top.pipe_connections and def_top.pipe_connections.top and (not def_top.pipe_connections.pattern or string.find(nym.name, def_top.pipe_connections.pattern)) and (not def_top.pipe_connections.top_param2 or (nym.param2 == def_top.pipe_connections.top_param2)) then pym = 1 end if def_bottom and def_bottom.pipe_connections and def_bottom.pipe_connections.bottom and (not def_bottom.pipe_connections.pattern or string.find(nyp.name, def_bottom.pipe_connections.pattern)) and (not def_bottom.pipe_connections.bottom_param2 or (nyp.param2 == def_bottom.pipe_connections.bottom_param2)) then pyp = 1 end if def_front and def_front.pipe_connections and def_front.pipe_connections.front and (not def_front.pipe_connections.pattern or string.find(nzp.name, def_front.pipe_connections.pattern)) and (not def_front.pipe_connections.front_param2 or (nzp.param2 == def_front.pipe_connections.front_param2)) then pzp = 1 end if def_back and def_back.pipe_connections and def_back.pipe_connections.back and (not def_back.pipe_connections.pattern or string.find(nzm.name, def_back.pipe_connections.pattern)) and (not def_back.pipe_connections.back_param2 or (nzm.param2 == def_back.pipe_connections.back_param2)) then pzm = 1 end print("stage 2 returns "..pxm+8*pxp+2*pym+16*pyp+4*pzm+32*pzp.. " for nodes surrounding "..minetest.get_node(pos).name.." at "..minetest.pos_to_string(pos)) return pxm+8*pxp+2*pym+16*pyp+4*pzm+32*pzp end function pipeworks.look_for_stackable_tanks(pos) local tym = minetest.get_node({ x=pos.x , y=pos.y-1, z=pos.z }) if string.find(tym.name, "pipeworks:storage_tank_") ~= nil or string.find(tym.name, "pipeworks:expansion_tank_") ~= nil then minetest.add_node(pos, { name = "pipeworks:expansion_tank_0", param2 = tym.param2}) end end