diff options
Diffstat (limited to 'advtrains/pseudoload.lua')
| -rw-r--r-- | advtrains/pseudoload.lua | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/advtrains/pseudoload.lua b/advtrains/pseudoload.lua deleted file mode 100644 index 677cd14..0000000 --- a/advtrains/pseudoload.lua +++ /dev/null @@ -1,182 +0,0 @@ -local print=function(t) minetest.log("action", t) minetest.chat_send_all(t) end - ---pseudoload.lua ---responsible for keeping up a database of all rail nodes existant in the world, regardless of whether the mapchunk is loaded. - -advtrains.trackdb={} ---trackdb[tt][y][x][z]={conn1, conn2, rely1, rely2, railheight} ---serialization format: ---(2byte x)(2byte y)(2byte z)(4bits conn1, 4bits conn2)[(plain rely1)|(plain rely2)|(plain railheight)]\n ---[] may be missing if 0,0,0 - ---load initially - ---[[ TODO temporary outcomment - ---delayed since all traintypes need to be registered -minetest.after(0, function() - -for tt, _ in pairs(advtrains.all_traintypes) do - local pl_fpath=minetest.get_worldpath().."/advtrains_trackdb_"..tt - advtrains.trackdb[tt]={} - local file, err = io.open(pl_fpath, "r") - if not file then - local er=err or "Unknown Error" - print("[advtrains]Failed loading advtrains trackdb save file "..er) - else - --custom format to save memory - while true do - local xbytes=file:read(2) - if not xbytes or #xbytes<2 then - break --eof reached - end - print(xbytes) - local ybytes=file:read(2) - local zbytes=file:read(2) - local x=(string.byte(xbytes[1])-128)*256+(string.byte(xbytes[2])) - local y=(string.byte(ybytes[1])-128)*256+(string.byte(ybytes[2])) - local z=(string.byte(zbytes[1])-128)*256+(string.byte(zbytes[2])) - - local conn1=string.byte(file:read(1)) - local conn1=string.byte(file:read(1)) - - if not advtrains.trackdb[tt][y] then advtrains.trackdb[tt][y]={} end - if not advtrains.trackdb[tt][y][x] then advtrains.trackdb[tt][y][x]={} end - - local rest=file.read("*l") - if rest~="" then - local rely1, rely2, railheight=string.match(rest, "([^|]+)|([^|]+)|([^|]+)") - if rely1 and rely2 and railheight then - advtrains.trackdb[tt][y][x][z]={ - conn1=conn1, conn2=conn2, - rely1=rely1, rely2=rely2, - railheight=railheight - } - else - advtrains.trackdb[tt][y][x][z]={ - conn1=conn1, conn2=conn2 - } - end - else - advtrains.trackdb[tt][y][x][z]={ - conn1=conn1, conn2=conn2 - } - end - end - file:close() - end -end - ---end minetest.after -end) - -function advtrains.save_trackdb() - for tt, _ in pairs(advtrains.all_traintypes) do - local pl_fpath=minetest.get_worldpath().."/advtrains_trackdb_"..tt - local file, err = io.open(pl_fpath, "w") - if not file then - local er=err or "Unknown Error" - print("[advtrains]Failed saving advtrains trackdb save file "..er) - else - --custom format to save memory - for y,tyl in pairs(advtrains.trackdb[tt]) do - for x,txl in pairs(tyl) do - for z,rail in pairs(txl) do - print("write "..x.." "..y.." "..z.." "..minetest.serialize(rail)) - file:write(string.char(math.floor(x/256)+128)..string.char((x%256))) - file:write(string.char(math.floor(y/256)+128)..string.char((y%256))) - file:write(string.char(math.floor(z/256)+128)..string.char((z%256))) - file:write(string.char(rail.conn1)) - file:write(string.char(rail.conn2)) - if (rail.rely1 and rail.rely1~=0) or (rail.rely2 and rail.rely2~=0) or (rail.railheight and rail.railheight~=0) then - file:write(rail.rely1.."|"..rail.rely2.."|"..rail.railheight) - end - file:write("\n") - end - end - end - file:close() - end - end -end -]]--end temp outcomment -advtrains.trackdb={} -advtrains.fpath_tdb=minetest.get_worldpath().."/advtrains_trackdb2" -local file, err = io.open(advtrains.fpath_tdb, "r") -if not file then - local er=err or "Unknown Error" - print("[advtrains]Failed loading advtrains save file "..er) -else - local tbl = minetest.deserialize(file:read("*a")) - if type(tbl) == "table" then - advtrains.trackdb=tbl - end - file:close() -end -function advtrains.save_trackdb() - local datastr = minetest.serialize(advtrains.trackdb) - if not datastr then - minetest.log("error", "[advtrains] Failed to serialize trackdb data!") - return - end - local file, err = io.open(advtrains.fpath_tdb, "w") - if err then - return err - end - file:write(datastr) - file:close() -end - ---get_node with pseudoload. ---returns: ---true, conn1, conn2, rely1, rely2, railheight in case everything's right. ---false if it's not a rail or the train does not drive on this rail, but it is loaded or ---nil if the node is neither loaded nor in trackdb ---the distraction between false and nil will be needed only in special cases.(train initpos) -function advtrains.get_rail_info_at(pos, drives_on) - local node=minetest.get_node_or_nil(pos) - if not node then - --try raildb - local rdp=vector.round(pos) - local dbe=(advtrains.trackdb[traintype] and advtrains.trackdb[traintype][rdp.y] and advtrains.trackdb[traintype][rdp.y][rdp.x] and advtrains.trackdb[traintype][rdp.y][rdp.x][rdp.z]) - if dbe then - for tt,_ in pairs(drives_on) do - if not dbe.tracktype or tt==dbe.tracktype then - return true, dbe.conn1, dbe.conn2, dbe.rely1 or 0, dbe.rely2 or 0, dbe.railheight or 0 - end - end - else - return nil - end - end - local nodename=node.name - if(not advtrains.is_track_and_drives_on(nodename, drives_on)) then - return false - end - local conn1, conn2, rely1, rely2, railheight, tracktype=advtrains.get_track_connections(node.name, node.param2) - - --already in trackdb? - local rdp=vector.round(pos) - if not (advtrains.trackdb and advtrains.trackdb[rdp.y] and advtrains.trackdb[rdp.y][rdp.x] and advtrains.trackdb[rdp.y][rdp.x][rdp.z]) then--TODO is this necessary? - if not advtrains.trackdb then advtrains.trackdb={} end - if not advtrains.trackdb[rdp.y] then advtrains.trackdb[rdp.y]={} end - if not advtrains.trackdb[rdp.y][rdp.x] then advtrains.trackdb[rdp.y][rdp.x]={} end - advtrains.trackdb[rdp.y][rdp.x][rdp.z]={ - conn1=conn1, conn2=conn2, - rely1=rely1, rely2=rely2, - railheight=railheight, tracktype=tracktype - } - end - - return true, conn1, conn2, rely1, rely2, railheight -end -function advtrains.reset_trackdb_position(pos) - local rdp=vector.round(pos) - if not advtrains.trackdb then advtrains.trackdb={} end - if not advtrains.trackdb[rdp.y] then advtrains.trackdb[rdp.y]={} end - if not advtrains.trackdb[rdp.y][rdp.x] then advtrains.trackdb[rdp.y][rdp.x]={} end - advtrains.trackdb[rdp.y][rdp.x][rdp.z]=nil - advtrains.get_rail_info_at(pos, advtrains.all_tracktypes)--to restore it. -end - - |