minetest-mods
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areas
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Use table indices as IDs 

This significantly optimizes a lot of operations and removes redundancy.
This commit is contained in:
ShadowNinja 2013-11-18 21:01:24 -05:00
parent f98312fe10
commit f096fb4dbb
6 changed files with 124 additions and 130 deletions
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5
api.lua
View File

@ -1,4 +1,3 @@
--TODO Less code duplication
-- Checks if the area is unprotected or owned by you
function areas:canInteract(pos, name)
@ -28,9 +27,7 @@ function areas:getNodeOwners(pos)
if pos.x >= area.pos1.x and pos.x <= area.pos2.x and
pos.y >= area.pos1.y and pos.y <= area.pos2.y and
pos.z >= area.pos1.z and pos.z <= area.pos2.z then
if area.owner ~= nil then
table.insert(owners, area.owner)
end
table.insert(owners, area.owner)
end
end
return owners

89
chatcommands.lua
View File

@ -1,3 +1,4 @@
minetest.register_chatcommand("protect", {
params = "<AreaName>",
description = "Protect your own area",
@ -7,10 +8,8 @@ minetest.register_chatcommand("protect", {
minetest.chat_send_player(name, 'Invalid usage, see /help protect')
return
end
local pos1, pos2 = {}, {}
if areas:getPos1(name) and areas:getPos2(name) then
pos1 = areas:getPos1(name)
pos2 = areas:getPos2(name)
local pos1, pos2 = areas:getPos1(name), areas:getPos2(name)
if pos1 and pos2 then
pos1, pos2 = areas:sortPos(pos1, pos2)
else
minetest.chat_send_player(name, 'You need to select an area first')
@ -30,10 +29,10 @@ minetest.register_chatcommand("protect", {
return
end
areas:add(name, param, pos1, pos2, nil)
local id = areas:add(name, param, pos1, pos2, nil)
areas:save()
minetest.chat_send_player(name, "Area protected")
minetest.chat_send_player(name, "Area protected. ID: "..id)
end})
@ -51,10 +50,8 @@ minetest.register_chatcommand("set_owner", {
return
end
local pos1, pos2 = {}, {}
if areas:getPos1(name) and areas:getPos2(name) then
pos1 = areas:getPos1(name)
pos2 = areas:getPos2(name)
local pos1, pos2 = areas:getPos1(name), areas:getPos2(name)
if pos1 and pos2 then
pos1, pos2 = areas:sortPos(pos1, pos2)
else
minetest.chat_send_player(name, "You need to select an area first")
@ -67,18 +64,18 @@ minetest.register_chatcommand("set_owner", {
return
end
minetest.log("action", name.." runs /set_owner. Owner="..ownername..
" AreaName="..areaname..
" StartPos="..minetest.pos_to_string(pos1)..
" EndPos=" ..minetest.pos_to_string(pos2))
minetest.log("action", name.." runs /set_owner. Owner = "..ownername..
" AreaName = "..areaname..
" StartPos = "..minetest.pos_to_string(pos1)..
" EndPos = " ..minetest.pos_to_string(pos2))
areas:add(ownername, areaname, pos1, pos2, nil)
local id = areas:add(ownername, areaname, pos1, pos2, nil)
areas:save()
minetest.chat_send_player(ownername,
"You have been granted control over an area."
.." Type /list_areas to show your areas.")
minetest.chat_send_player(name, "Area protected")
"You have been granted control over area #"..
id..". Type /list_areas to show your areas.")
minetest.chat_send_player(name, "Area protected. ID: "..id)
end})
@ -97,10 +94,8 @@ minetest.register_chatcommand("add_owner", {
return
end
local pos1, pos2 = {}, {}
if areas:getPos1(name) and areas:getPos2(name) then
pos1 = areas:getPos1(name)
pos2 = areas:getPos2(name)
local pos1, pos2 = areas:getPos1(name), areas:getPos2(name)
if pos1 and pos2 then
pos1, pos2 = areas:sortPos(pos1, pos2)
else
minetest.chat_send_player(name, 'You need to select an area first')
@ -127,13 +122,13 @@ minetest.register_chatcommand("add_owner", {
return
end
areas:add(ownername, areaname, pos1, pos2, pid)
local id = areas:add(ownername, areaname, pos1, pos2, pid)
areas:save()
minetest.chat_send_player(ownername,
"You have been granted control over an area."
.." Type /list_areas to show your areas.")
minetest.chat_send_player(name, "Area protected.")
"You have been granted control over area #"..
id..". Type /list_areas to show your areas.")
minetest.chat_send_player(name, "Area protected. ID: "..id)
end})
@ -150,9 +145,7 @@ minetest.register_chatcommand("rename_area", {
end
id = tonumber(id)
index = areas:getIndexById(id)
if not index then
if not id then
minetest.chat_send_player(name, "That area doesn't exist.")
return
end
@ -162,7 +155,7 @@ minetest.register_chatcommand("rename_area", {
return
end
areas.areas[index].name = newName
areas.areas[id].name = newName
areas:save()
minetest.chat_send_player(name, "Area renamed.")
end})
@ -178,11 +171,12 @@ minetest.register_chatcommand("find_areas", {
"A regular expression is required.")
return
end
local found = false
for _, area in pairs(areas.areas) do
if areas:isAreaOwner(area.id, name) and
areas:toString(area):find(param) then
minetest.chat_send_player(name, areas:toString(area))
for id, area in pairs(areas.areas) do
if areas:isAreaOwner(id, name) and
areas:toString(id):find(param) then
minetest.chat_send_player(name, areas:toString(id))
found = true
end
end
@ -205,10 +199,10 @@ minetest.register_chatcommand("list_areas", {
minetest.chat_send_player(name,
"Showing your areas.")
end
for _, area in pairs(areas.areas) do
if admin or areas:isAreaOwner(area.id, name) then
for id, area in pairs(areas.areas) do
if admin or areas:isAreaOwner(id, name) then
minetest.chat_send_player(name,
areas:toString(area))
areas:toString(id))
end
end
end})
@ -227,16 +221,15 @@ minetest.register_chatcommand("recursive_remove_areas", {
return
end
if areas:isAreaOwner(id, name) then
areas:remove(id, true)
areas:sort()
areas:save()
else
if not areas:isAreaOwner(id, name) then
minetest.chat_send_player(name, "Area "..id
.." does not exist or is"
.." not owned by you.")
return
end
areas:remove(id, true)
areas:save()
minetest.chat_send_player(name, "Removed area "..id
.." and it's sub areas.")
end})
@ -254,16 +247,15 @@ minetest.register_chatcommand("remove_area", {
return
end
if areas:isAreaOwner(id, name) then
areas:remove(id, false)
areas:sort()
areas:save()
else
if not areas:isAreaOwner(id, name) then
minetest.chat_send_player(name, "Area "..id
.." does not exist or"
.." is not owned by you")
return
end
areas:remove(id)
areas:save()
minetest.chat_send_player(name, 'Removed area '..id)
end})
@ -296,8 +288,7 @@ minetest.register_chatcommand("change_owner", {
.." or is not owned by you.")
return
end
local index = areas:getIndexById(id)
areas.areas[index].owner = new_owner
areas.areas[id].owner = new_owner
areas:save()
minetest.chat_send_player(name, 'Owner changed.')
minetest.chat_send_player(new_owner,

11
init.lua
View File

@ -21,12 +21,17 @@ areas:load()
minetest.register_privilege("areas", {description = "Can administer areas"})
if not minetest.registered_privileges[areas.self_protection_privilege] then
minetest.register_privilege(areas.self_protection_privilege,
{description = "Can protect areas"})
minetest.register_privilege(areas.self_protection_privilege, {
description = "Can protect areas",
})
end
for _, area in pairs(areas.areas) do
area.id = nil
end
if minetest.setting_getbool("log_mod") then
local diffTime = os.clock() - areas.startTime
print("[areas] loaded in "..diffTime.."s.")
minetest.log("action", "areas loaded in "..diffTime.."s.")
end

93
internal.lua
View File

@ -1,3 +1,4 @@
function areas:player_exists(name)
return minetest.auth_table[name] ~= nil
end
@ -20,45 +21,59 @@ function areas:load()
return err
end
self.areas = minetest.deserialize(file:read("*a"))
if type(self.areas) ~= "table" then self.areas = {} end
if type(self.areas) ~= "table" then
self.areas = {}
end
file:close()
end
-- Shorter than the table function
-- Finds the first usable index in a table
-- Eg: {[1]=false,[4]=true} -> 2
local function findFirstUnusedIndex(t)
for i = 1, #t + 1 do
if t[i] == nil then
return i
end
end
end
-- Add a area, returning the new area's id.
function areas:add(owner, name, pos1, pos2, parent)
table.insert(areas.areas, {id=table.maxn(self.areas)+1, name=name,
pos1=pos1, pos2=pos2, owner=owner, parent=parent})
local id = findFirstUnusedIndex(self.areas)
self.areas[id] = {name=name, pos1=pos1, pos2=pos2, owner=owner,
parent=parent}
return id
end
-- Remove a area, and optionally it's children recursively.
-- If a area is deleted non-recursively the children will
-- have the removed area's parent as their new parent.
function areas:remove(id, recurse)
function areas:remove(id, recurse, secondrun)
if recurse then
-- Recursively find child entries and remove them
local cids = self:getChildren(id)
for _, cid in pairs(cids) do
self:remove(cid, true)
self:remove(cid, true, true)
end
else
-- Update parents
local parent = self:getAreaById(id).parent
local parent = self.areas[id].parent
local children = self:getChildren(id)
for _, child in pairs(children) do
for _, cid in pairs(children) do
-- The subarea parent will be niled out if the
-- removed area does not have a parent
areas.areas[self:getIndexById(child)].parent = parent
self.areas[cid].parent = parent
end
end
-- Remove main entry
table.remove(self.areas, self:getIndexById(id))
self.areas[id] = nil
end
-- Checks if a area between two points is entirely contained by another area
function areas:isSubarea(pos1, pos2, id)
local area = areas:getAreaById(id)
local area = self.areas[id]
if not area then
return false
end
@ -76,9 +91,9 @@ end
-- Returns a table (list) of children of an area given it's identifier
function areas:getChildren(id)
local children = {}
for _, area in pairs(self.areas) do
for cid, area in pairs(self.areas) do
if area.parent and area.parent == id then
table.insert(children, area.id)
table.insert(children, cid)
end
end
return children
@ -140,57 +155,43 @@ function areas:canPlayerAddArea(pos1, pos2, name)
return true, ""
end
-- Given a area returns a string in the format:
-- Given a id returns a string in the format:
-- "name [id]: owner (x1, y1, z1) (x2, y2, z2) -> children"
function areas:toString(area)
local message = area.name..
" ["..area.id.."]: "..area.owner.." "..
minetest.pos_to_string(area.pos1).." "..
minetest.pos_to_string(area.pos2)
function areas:toString(id)
local area = self.areas[id]
local message = ("%s [%d]: %s %s %s"):format(
area.name, id, area.owner,
minetest.pos_to_string(area.pos1),
minetest.pos_to_string(area.pos2))
local children = areas:getChildren(id)
if #children > 0 then
message = message..
" -> "..table.concat(children, ", ")
message = message.." -> "..table.concat(children, ", ")
end
return message
end
-- Returns a area given it's identifier
function areas:getAreaById(id)
if not self.areas[id] then
return nil
end
assert(self.areas[id].id == id)
return self.areas[id]
end
-- Returns a table index for an area given it's identifier
function areas:getIndexById(id)
if not self.areas[id] then
return nil
end
assert(self.areas[id].id == id)
return id
return message
end
-- Re-order areas in table by their identifiers
function areas:sort()
local sa = {}
for k, area in pairs(self.areas) do
if area.id ~= k then
if not area.parent then
table.insert(sa, area)
local newid = #sa
for _, subarea in pairs(self.areas) do
if subarea.parent == area.id then
subarea.parent = k
if subarea.parent == k then
subarea.parent = newid
table.insert(sa, subarea)
end
end
area.id = k
end
end
self.areas = sa
end
-- Checks if a player owns an area or a parent of it
function areas:isAreaOwner(id, name)
local cur = self:getAreaById(id)
local cur = self.areas[id]
if cur and minetest.check_player_privs(name, {areas=true}) then
return true
end
@ -198,7 +199,7 @@ function areas:isAreaOwner(id, name)
if cur.owner == name then
return true
elseif cur.parent then
cur = self:getAreaById(cur.parent)
cur = self.areas[cur.parent]
else
return false
end

35
legacy.lua
View File

@ -22,21 +22,22 @@ minetest.register_chatcommand("legacy_load_areas", {
minetest.chat_send_player(name, "Legacy file loaded.")
for k, area in pairs(areas.areas) do
--New position format
areas.areas[k].pos1 = {x=area.x1, y=area.y1, z=area.z1}
areas.areas[k].pos2 = {x=area.x2, y=area.y2, z=area.z2}
-- New position format
area.pos1 = {x=area.x1, y=area.y1, z=area.z1}
area.pos2 = {x=area.x2, y=area.y2, z=area.z2}
areas.areas[k].x1, areas.areas[k].y1,
areas.areas[k].z1, areas.areas[k].x2,
areas.areas[k].y2, areas.areas[k].z2 =
area.x1, area.y1, area.z1,
area.x2, area.y2, area.z2 =
nil, nil, nil, nil, nil, nil
--Area positions sorting
areas.areas[k].pos1, areas.areas[k].pos2 =
areas:sortPos(areas.areas[k].pos1, areas.areas[k].pos2)
-- Area positions sorting
area.pos1, area.pos2 = areas:sortPos(area.pos1, area.pos2)
--Add name
areas.areas[k].name = "unnamed"
-- Add name
area.name = "unnamed"
-- Remove ID
area.id = nil
end
minetest.chat_send_player(name, "Table format updated.")
@ -81,9 +82,7 @@ function areas.getNodeOwnerName(pos)
if pos.x >= p1.x and pos.x <= p2.x and
pos.y >= p1.y and pos.y <= p2.y and
pos.z >= p1.z and pos.z <= p2.z then
if area.owner ~= nil then
return area.owner
end
return area.owner
end
end
return false
@ -138,6 +137,7 @@ if areas.legacy_table then
a.y2 = a.pos2.y
a.z2 = a.pos2.z
a.pos1, a.pos2 = nil, nil
a.id = key
end
return a
end,
@ -151,10 +151,11 @@ if areas.legacy_table then
a.pos2.x = a.x2
a.pos2.y = a.y2
a.pos2.z = a.z2
a.x1, a.y1, a.z1, a.x2, a.y2, a.z2
= nil, nil, nil, nil, nil, nil
a.x1, a.y1, a.z1, a.x2, a.y2, a.z2 =
nil, nil, nil, nil, nil, nil
a.name = a.name or "unnamed"
return rawset(areas.areas, key, a);
a.id = nil
return rawset(areas.areas, key, a)
end
end
})

21
pos.lua
View File

@ -22,19 +22,18 @@ minetest.register_chatcommand("select_area", {
"Invalid usage, see /help select_area.")
return
end
for k, area in pairs(areas.areas) do
if area.id == id then
areas:setPos1(name, area.pos1)
areas:setPos2(name, area.pos2)
minetest.chat_send_player(name,
"Area "..id.." selected.")
return
end
if not areas.areas[id] then
minetest.chat_send_player(name,
"The area "..id.." does not exist.")
return
end
areas:setPos1(name, areas.areas[id].pos1)
areas:setPos2(name, areas.areas[id].pos2)
minetest.chat_send_player(name,
"The area "..id.." does not exist.")
end})
"Area "..id.." selected.")
end,
})
minetest.register_chatcommand("area_pos1", {
params = "[X Y Z|X,Y,Z]",