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authorGabriel Pérez-Cerezo <gabriel@gpcf.eu>2017-01-18 23:22:06 +0100
committerGabriel Pérez-Cerezo <gabriel@gpcf.eu>2017-01-18 23:22:06 +0100
commitfc67d4531a6cd53f29b14ce9f44da984149d9175 (patch)
tree5675c23d81f92d327b197d7c4474852f19ba3e52 /pseudoload.lua
parent0030409dd34f611b90861a528d6735a44dd663f2 (diff)
parent4bc5163787c6c4c42fd14016c1c5103529d0e239 (diff)
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-rw-r--r--pseudoload.lua180
1 files changed, 0 insertions, 180 deletions
diff --git a/pseudoload.lua b/pseudoload.lua
deleted file mode 100644
index 8511811..0000000
--- a/pseudoload.lua
+++ /dev/null
@@ -1,180 +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_trackdb"
-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, traintype)
- 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
- return true, dbe.conn1, dbe.conn2, dbe.rely1 or 0, dbe.rely2 or 0, dbe.railheight or 0
- else
- return nil
- end
- end
- local nodename=node.name
- if(not advtrains.is_track_and_drives_on(nodename, advtrains.all_traintypes[traintype].drives_on)) then
- return false
- end
- local conn1, conn2, rely1, rely2, railheight=advtrains.get_track_connections(node.name, node.param2)
-
- --already in trackdb?
- local rdp=vector.round(pos)
- if not (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]) then--TODO is this necessary?
- if not advtrains.trackdb[traintype] then advtrains.trackdb[traintype]={} end
- if not advtrains.trackdb[traintype][rdp.y] then advtrains.trackdb[traintype][rdp.y]={} end
- if not advtrains.trackdb[traintype][rdp.y][rdp.x] then advtrains.trackdb[traintype][rdp.y][rdp.x]={} end
- advtrains.trackdb[traintype][rdp.y][rdp.x][rdp.z]={
- conn1=conn1, conn2=conn2,
- rely1=rely1, rely2=rely2,
- railheight=railheight
- }
- end
-
- return true, conn1, conn2, rely1, rely2, railheight
-end
-function advtrains.reset_trackdb_position(pos)
- local rdp=vector.round(pos)
- for tt, _ in pairs(advtrains.all_traintypes) do
- if not advtrains.trackdb[tt] then advtrains.trackdb[tt]={} end
- if not advtrains.trackdb[tt][rdp.y] then advtrains.trackdb[tt][rdp.y]={} end
- if not advtrains.trackdb[tt][rdp.y][rdp.x] then advtrains.trackdb[tt][rdp.y][rdp.x]={} end
- advtrains.trackdb[tt][rdp.y][rdp.x][rdp.z]=nil
- advtrains.get_rail_info_at(pos, tt)--to restore it.
- end
-end
-
-