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Diffstat (limited to 'areas')
| -rw-r--r-- | areas/LICENSE.txt | 502 | ||||
| -rw-r--r-- | areas/README.md | 104 | ||||
| -rw-r--r-- | areas/api.lua | 128 | ||||
| -rw-r--r-- | areas/chatcommands.lua | 404 | ||||
| -rw-r--r-- | areas/hud.lua | 46 | ||||
| -rw-r--r-- | areas/init.lua | 39 | ||||
| -rw-r--r-- | areas/interact.lua | 19 | ||||
| -rw-r--r-- | areas/internal.lua | 265 | ||||
| -rw-r--r-- | areas/legacy.lua | 138 | ||||
| -rw-r--r-- | areas/pos.lua | 255 | ||||
| -rw-r--r-- | areas/settings.lua | 43 | ||||
| -rw-r--r-- | areas/textures/areas_pos1.png | bin | 0 -> 142 bytes | |||
| -rw-r--r-- | areas/textures/areas_pos2.png | bin | 0 -> 157 bytes |
13 files changed, 1943 insertions, 0 deletions
diff --git a/areas/LICENSE.txt b/areas/LICENSE.txt new file mode 100644 index 0000000..4362b49 --- /dev/null +++ b/areas/LICENSE.txt @@ -0,0 +1,502 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. It also counts + as the successor of the GNU Library Public License, version 2, hence + the version number 2.1.] + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + <signature of Ty Coon>, 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! diff --git a/areas/README.md b/areas/README.md new file mode 100644 index 0000000..bd6a54d --- /dev/null +++ b/areas/README.md @@ -0,0 +1,104 @@ +Areas mod for Minetest 0.4.8+ +============================= + + +Configuration +------------- + +If you wish to specify configuration options, such as whether players are +allowed to protect their own areas with the `protect` command (disabled by +default), you should check config.lua and set the appropriate settings in your +server's configuration file (probably `minetest.conf`). + + +Tutorial +-------- + +To protect an area you must first set the corner positions of the area. +In order to set the corner positions you can run: + * `/area_pos set` and punch the two corner nodes to set them. + * `/area_pos set1/set2` and punch only the first or second corner node to + set them one at a time. + * `/area_pos1/2` to set one of the positions to your current position. + * `/area_pos1/2 X Y Z` to set one of the positions to the specified + coordinates. + +Once you have set the border positions you can protect the area by running one +of the following commands: + * `/set_owner <OwnerName> <AreaName>` -- If you have the `areas` privilege. + * `/protect <AreaName>` -- If you have the `areas` privilege or the server + administrator has enabled area self-protection. + +The area name is used only for informational purposes (so that you know what +an area is for). It is not used for any other purpose. +For example: `/set_owner SomePlayer Mese city` + +Now that you own an area you may want to add sub-owners to it. You can do this +with the `add_owner` command. Anyone with an area can use the `add_owner` +command on their areas. Before using the `add_owner` command you have to +select the corners of the sub-area as you did for `set_owner`. If your markers +are still around your original area and you want to grant access to your +entire area you will not have to re-set them. You can also use `select_area` to +place the markers at the corners of an existing area if you've reset your +markers and want to grant access to a full area. +The `add_owner` command expects three arguments: + 1. The ID number of the parent area (the area that you want to add a + sub-area to). + 2. The name of the player that will own the sub-area. + 3. The name of the sub-area. (can contain spaces) + +For example: `/add_owner 123 BobTheBuilder Diamond lighthouse` + + +Commands +-------- + + * `/protect <AreaName>` -- Protects an area for yourself. (if + self-protection is enabled) + + * `/set_owner <OwnerName> <AreaName>` -- Protects an area for a specified + player. (requires the `areas` privilege) + + * `/add_owner <ParentID> <OwnerName> <ChildName>` -- Grants another player + control over part (or all) of an area. + + * `/rename_area <ID> <NewName>` -- Renames an existing area. + + * `/list_areas` -- Lists all of the areas that you own, or all areas if you + have the `areas` privilege. + + * `/find_areas <Regex>` -- Finds areas using a Lua regular expresion. + For example, to find castles: + + /find_areas [Cc]astle + + * `/remove_area <ID>` -- Removes an area that you own. Any sub-areas of that + area are made sub-areas of the removed area's parent, if it exists. + If the removed area has no parent it's sub-areas will have no parent. + + * `/recursive_remove_areas <ID>` -- Removes an area and all sub-areas of it. + + * `/change_owner <ID> <NewOwner>` -- Change the owner of an area. + + * `/area_info` -- Returns information about area configuration and usage. + + * `/select_area <ID>` -- Sets the area positions to those of an existing + area. + + * `/area_pos {set,set1,set2,get}` -- Sets the area positions by punching + nodes or shows the current area positions. + + * `/area_pos1 [X,Y,Z|X Y Z]` -- Sets area position one to your position or + the one supplied. + + * `/area_pos2 [X,Y,Z|X Y Z]` -- Sets area position two to your position or + the one supplied. + +License +------- + +Copyright (C) 2013 ShadowNinja + +Licensed under the GNU LGPL version 2.1 or later. +See LICENSE.txt and http://www.gnu.org/licenses/lgpl-2.1.txt + diff --git a/areas/api.lua b/areas/api.lua new file mode 100644 index 0000000..e8b9c7a --- /dev/null +++ b/areas/api.lua @@ -0,0 +1,128 @@ + +--- Returns a list of areas that include the provided position. +function areas:getAreasAtPos(pos) + local res = {} + if self.store then + local a = self.store:get_areas_for_pos(pos, false, true) + for store_id, store_area in pairs(a) do + local id = tonumber(store_area.data) + res[id] = self.areas[id] + end + else + local px, py, pz = pos.x, pos.y, pos.z + for id, area in pairs(self.areas) do + local ap1, ap2 = area.pos1, area.pos2 + if + (px >= ap1.x and px <= ap2.x) and + (py >= ap1.y and py <= ap2.y) and + (pz >= ap1.z and pz <= ap2.z) then + res[id] = area + end + end + end + return res +end + +--- Returns areas that intersect with the passed area. +function areas:getAreasIntersectingArea(pos1, pos2) + local res = {} + if self.store then + local a = self.store:get_areas_in_area(pos1, pos2, + true, false, true) + for store_id, store_area in pairs(a) do + local id = tonumber(store_area.data) + res[id] = self.areas[id] + end + else + self:sortPos(pos1, pos2) + local p1x, p1y, p1z = pos1.x, pos1.y, pos1.z + local p2x, p2y, p2z = pos2.x, pos2.y, pos2.z + for id, area in pairs(self.areas) do + local ap1, ap2 = area.pos1, area.pos2 + if + (ap1.x <= p2x and ap2.x >= p1x) and + (ap1.y <= p2y and ap2.y >= p1y) and + (ap1.z <= p2z and ap2.z >= p1z) then + -- Found an intersecting area. + res[id] = area + end + end + end + return res +end + +-- Checks if the area is unprotected or owned by you +function areas:canInteract(pos, name) + if minetest.check_player_privs(name, self.adminPrivs) then + return true + end + local owned = false + for _, area in pairs(self:getAreasAtPos(pos)) do + if area.owner == name or area.open then + return true + else + owned = true + end + end + return not owned +end + +-- Returns a table (list) of all players that own an area +function areas:getNodeOwners(pos) + local owners = {} + for _, area in pairs(self:getAreasAtPos(pos)) do + table.insert(owners, area.owner) + end + return owners +end + +--- Checks if the area intersects with an area that the player can't interact in. +-- Note that this fails and returns false when the specified area is fully +-- owned by the player, but with multiple protection zones, none of which +-- cover the entire checked area. +-- @param name (optional) Player name. If not specified checks for any intersecting areas. +-- @param allow_open Whether open areas should be counted as if they didn't exist. +-- @return Boolean indicating whether the player can interact in that area. +-- @return Un-owned intersecting area ID, if found. +function areas:canInteractInArea(pos1, pos2, name, allow_open) + if name and minetest.check_player_privs(name, self.adminPrivs) then + return true + end + self:sortPos(pos1, pos2) + + -- Intersecting non-owned area ID, if found. + local blocking_area = nil + + local areas = self:getAreasIntersectingArea(pos1, pos2) + for id, area in pairs(areas) do + -- First check for a fully enclosing owned area. + -- A little optimization: isAreaOwner isn't necessary + -- here since we're iterating over all relevant areas. + if area.owner == name and + self:isSubarea(pos1, pos2, id) then + return true + end + + -- Then check for intersecting non-owned (blocking) areas. + -- We don't bother with this check if we've already found a + -- blocking area, as the check is somewhat expensive. + -- The area blocks if the area is closed or open areas aren't + -- acceptable to the caller, and the area isn't owned. + -- Note: We can't return directly here, because there might be + -- an exclosing owned area that we haven't gotten to yet. + if not blocking_area and + (not allow_open or not area.open) and + (not name or not self:isAreaOwner(id, name)) then + blocking_area = id + end + end + + if blocking_area then + return false, blocking_area + end + + -- There are no intersecting areas or they are only partially + -- intersecting areas and they are all owned by the player. + return true +end + diff --git a/areas/chatcommands.lua b/areas/chatcommands.lua new file mode 100644 index 0000000..d37634a --- /dev/null +++ b/areas/chatcommands.lua @@ -0,0 +1,404 @@ + +minetest.register_chatcommand("protect", { + params = "<AreaName>", + description = "Protect your own area", + privs = {[areas.config.self_protection_privilege]=true}, + func = function(name, param) + if param == "" then + return false, "Invalid usage, see /help protect." + end + local pos1, pos2 = areas:getPos(name) + if not (pos1 and pos2) then + return false, "You need to select an area first." + end + + minetest.log("action", "/protect invoked, owner="..name.. + " AreaName="..param.. + " StartPos="..minetest.pos_to_string(pos1).. + " EndPos=" ..minetest.pos_to_string(pos2)) + + local canAdd, errMsg = areas:canPlayerAddArea(pos1, pos2, name) + if not canAdd then + return false, "You can't protect that area: "..errMsg + end + + local id = areas:add(name, param, pos1, pos2, nil) + areas:save() + + return true, "Area protected. ID: "..id + end +}) + + +minetest.register_chatcommand("set_owner", { + params = "<PlayerName> <AreaName>", + description = "Protect an area beetween two positions and give" + .." a player access to it without setting the parent of the" + .." area to any existing area", + privs = areas.adminPrivs, + func = function(name, param) + local ownerName, areaName = param:match('^(%S+)%s(.+)$') + + if not ownerName then + return false, "Incorrect usage, see /help set_owner." + end + + local pos1, pos2 = areas:getPos(name) + if not (pos1 and pos2) then + return false, "You need to select an area first." + end + + if not areas:player_exists(ownerName) then + return false, "The player \"" + ..ownerName.."\" does not exist." + end + + minetest.log("action", name.." runs /set_owner. Owner = "..ownerName.. + " AreaName = "..areaName.. + " StartPos = "..minetest.pos_to_string(pos1).. + " EndPos = " ..minetest.pos_to_string(pos2)) + + local id = areas:add(ownerName, areaName, pos1, pos2, nil) + areas:save() + + minetest.chat_send_player(ownerName, + "You have been granted control over area #".. + id..". Type /list_areas to show your areas.") + return true, "Area protected. ID: "..id + end +}) + + +minetest.register_chatcommand("add_owner", { + params = "<ParentID> <Player> <AreaName>", + description = "Give a player access to a sub-area beetween two" + .." positions that have already been protected," + .." Use set_owner if you don't want the parent to be set.", + func = function(name, param) + local pid, ownerName, areaName + = param:match('^(%d+) ([^ ]+) (.+)$') + + if not pid then + minetest.chat_send_player(name, "Incorrect usage, see /help add_owner") + return + end + + local pos1, pos2 = areas:getPos(name) + if not (pos1 and pos2) then + return false, "You need to select an area first." + end + + if not areas:player_exists(ownerName) then + return false, "The player \""..ownerName.."\" does not exist." + end + + minetest.log("action", name.." runs /add_owner. Owner = "..ownerName.. + " AreaName = "..areaName.." ParentID = "..pid.. + " StartPos = "..pos1.x..","..pos1.y..","..pos1.z.. + " EndPos = " ..pos2.x..","..pos2.y..","..pos2.z) + + -- Check if this new area is inside an area owned by the player + pid = tonumber(pid) + if (not areas:isAreaOwner(pid, name)) or + (not areas:isSubarea(pos1, pos2, pid)) then + return false, "You can't protect that area." + end + + local id = areas:add(ownerName, areaName, pos1, pos2, pid) + areas:save() + + minetest.chat_send_player(ownerName, + "You have been granted control over area #".. + id..". Type /list_areas to show your areas.") + return true, "Area protected. ID: "..id + end +}) + + +minetest.register_chatcommand("rename_area", { + params = "<ID> <newName>", + description = "Rename a area that you own", + func = function(name, param) + local id, newName = param:match("^(%d+)%s(.+)$") + if not id then + return false, "Invalid usage, see /help rename_area." + end + + id = tonumber(id) + if not id then + return false, "That area doesn't exist." + end + + if not areas:isAreaOwner(id, name) then + return true, "You don't own that area." + end + + areas.areas[id].name = newName + areas:save() + return true, "Area renamed." + end +}) + + +minetest.register_chatcommand("find_areas", { + params = "<regexp>", + description = "Find areas using a Lua regular expression", + privs = areas.adminPrivs, + func = function(name, param) + if param == "" then + return false, "A regular expression is required." + end + + -- Check expression for validity + local function testRegExp() + ("Test [1]: Player (0,0,0) (0,0,0)"):find(param) + end + if not pcall(testRegExp) then + return false, "Invalid regular expression." + end + + local matches = {} + for id, area in pairs(areas.areas) do + local str = areas:toString(id) + if str:find(param) then + table.insert(matches, str) + end + end + if #matches > 0 then + return true, table.concat(matches, "\n") + else + return true, "No matches found." + end + end +}) + + +minetest.register_chatcommand("list_areas", { + description = "List your areas, or all areas if you are an admin.", + func = function(name, param) + local admin = minetest.check_player_privs(name, areas.adminPrivs) + local areaStrings = {} + for id, area in pairs(areas.areas) do + if admin or areas:isAreaOwner(id, name) then + table.insert(areaStrings, areas:toString(id)) + end + end + if #areaStrings == 0 then + return true, "No visible areas." + end + return true, table.concat(areaStrings, "\n") + end +}) + + +minetest.register_chatcommand("recursive_remove_areas", { + params = "<id>", + description = "Recursively remove areas using an id", + func = function(name, param) + local id = tonumber(param) + if not id then + return false, "Invalid usage, see" + .." /help recursive_remove_areas" + end + + if not areas:isAreaOwner(id, name) then + return false, "Area "..id.." does not exist or is" + .." not owned by you." + end + + areas:remove(id, true) + areas:save() + return true, "Removed area "..id.." and it's sub areas." + end +}) + + +minetest.register_chatcommand("remove_area", { + params = "<id>", + description = "Remove an area using an id", + func = function(name, param) + local id = tonumber(param) + if not id then + return false, "Invalid usage, see /help remove_area" + end + + if not areas:isAreaOwner(id, name) then + return false, "Area "..id.." does not exist or" + .." is not owned by you." + end + + areas:remove(id) + areas:save() + return true, "Removed area "..id + end +}) + + +minetest.register_chatcommand("change_owner", { + params = "<ID> <NewOwner>", + description = "Change the owner of an area using it's ID", + func = function(name, param) + local id, newOwner = param:match("^(%d+)%s(%S+)$") + if not id then + return false, "Invalid usage, see" + .." /help change_owner." + end + + if not areas:player_exists(newOwner) then + return false, "The player \""..newOwner + .."\" does not exist." + end + + id = tonumber(id) + if not areas:isAreaOwner(id, name) then + return false, "Area "..id.." does not exist" + .." or is not owned by you." + end + areas.areas[id].owner = newOwner + areas:save() + minetest.chat_send_player(newOwner, + ("%s has given you control over the area %q (ID %d).") + :format(name, areas.areas[id].name, id)) + return true, "Owner changed." + end +}) + + +minetest.register_chatcommand("area_open", { + params = "<ID>", + description = "Toggle an area open (anyone can interact) or closed", + func = function(name, param) + local id = tonumber(param) + if not id then + return false, "Invalid usage, see /help area_open." + end + + if not areas:isAreaOwner(id, name) then + return false, "Area "..id.." does not exist" + .." or is not owned by you." + end + local open = not areas.areas[id].open + -- Save false as nil to avoid inflating the DB. + areas.areas[id].open = open or nil + areas:save() + return true, ("Area %s."):format(open and "opened" or "closed") + end +}) + + +minetest.register_chatcommand("move_area", { + params = "<ID>", + description = "Move (or resize) an area to the current positions.", + privs = areas.adminPrivs, + func = function(name, param) + local id = tonumber(param) + if not id then + return false, "Invalid usage, see /help move_area." + end + + local area = areas.areas[id] + if not area then + return false, "Area does not exist." + end + + local pos1, pos2 = areas:getPos(name) + if not pos1 then + return false, "You need to select an area first." + end + + area.pos1 = pos1 + area.pos2 = pos2 + areas:save() + return true, "Area successfully moved." + end, +}) + +minetest.register_chatcommand("area_info", { + description = "Get information about area configuration and usage.", + func = function(name, param) + local lines = {} + local privs = minetest.get_player_privs(name) + + -- Short (and fast to access) names + local cfg = areas.config + local self_prot = cfg.self_protection + local prot_priv = cfg.self_protection_privilege + local limit = cfg.self_protection_max_areas + local limit_high = cfg.self_protection_max_areas_high + local size_limit = cfg.self_protection_max_size + local size_limit_high = cfg.self_protection_max_size_high + + local has_high_limit = privs.areas_high_limit + local has_prot_priv = not prot_priv or privs[prot_priv] + local can_prot = privs.areas or (self_prot and has_prot_priv) + local max_count = can_prot and + (has_high_limit and limit_high or limit) or 0 + local max_size = has_high_limit and + size_limit_high or size_limit + + -- Privilege information + local self_prot_line = ("Self protection is %sabled"):format( + self_prot and "en" or "dis") + if self_prot and prot_priv then + self_prot_line = self_prot_line.. + (" %s have the neccessary privilege (%q).") + :format( + has_prot_priv and "and you" or + "but you don't", + prot_priv) + else + self_prot_line = self_prot_line.."." + end + table.insert(lines, self_prot_line) + if privs.areas then + table.insert(lines, "You are an area".. + " administrator (\"areas\" privilege).") + elseif has_high_limit then + table.insert(lines, + "You have extended area protection".. + " limits (\"areas_high_limit\" privilege).") + end + + -- Area count + local area_num = 0 + for id, area in pairs(areas.areas) do + if area.owner == name then + area_num = area_num + 1 + end + end + local count_line = ("You have %d area%s"):format( + area_num, area_num == 1 and "" or "s") + if privs.areas then + count_line = count_line.. + " and have no area protection limits." + elseif can_prot then + count_line = count_line..(", out of a maximum of %d.") + :format(max_count) + end + table.insert(lines, count_line) + + -- Area size limits + local function size_info(str, size) + table.insert(lines, ("%s spanning up to %dx%dx%d.") + :format(str, size.x, size.y, size.z)) + end + local function priv_limit_info(priv, max_count, max_size) + size_info(("Players with the %q privilege".. + " can protect up to %d areas"):format( + priv, max_count), max_size) + end + if self_prot then + if privs.areas then + priv_limit_info(prot_priv, + limit, size_limit) + priv_limit_info("areas_high_limit", + limit_high, size_limit_high) + elseif has_prot_priv then + size_info("You can protect areas", max_size) + end + end + + return true, table.concat(lines, "\n") + end, +}) + diff --git a/areas/hud.lua b/areas/hud.lua new file mode 100644 index 0000000..4908b92 --- /dev/null +++ b/areas/hud.lua @@ -0,0 +1,46 @@ +-- This is inspired by the landrush mod by Bremaweb + +areas.hud = {} + +minetest.register_globalstep(function(dtime) + for _, player in pairs(minetest.get_connected_players()) do + local name = player:get_player_name() + local pos = vector.round(player:getpos()) + local areaStrings = {} + for id, area in pairs(areas:getAreasAtPos(pos)) do + table.insert(areaStrings, ("%s [%u] (%s%s)") + :format(area.name, id, area.owner, + area.open and ":open" or "")) + end + local areaString = "Areas:" + if #areaStrings > 0 then + areaString = areaString.."\n".. + table.concat(areaStrings, "\n") + end + local hud = areas.hud[name] + if not hud then + hud = {} + areas.hud[name] = hud + hud.areasId = player:hud_add({ + hud_elem_type = "text", + name = "Areas", + number = 0xFFFFFF, + position = {x=0, y=1}, + offset = {x=8, y=-8}, + text = areaString, + scale = {x=200, y=60}, + alignment = {x=1, y=-1}, + }) + hud.oldAreas = areaString + return + elseif hud.oldAreas ~= areaString then + player:hud_change(hud.areasId, "text", areaString) + hud.oldAreas = areaString + end + end +end) + +minetest.register_on_leaveplayer(function(player) + areas.hud[player:get_player_name()] = nil +end) + diff --git a/areas/init.lua b/areas/init.lua new file mode 100644 index 0000000..2c10cdd --- /dev/null +++ b/areas/init.lua @@ -0,0 +1,39 @@ +-- Areas mod by ShadowNinja +-- Based on node_ownership +-- License: LGPLv2+ + +areas = {} + +areas.adminPrivs = {areas=true} +areas.startTime = os.clock() + +areas.modpath = minetest.get_modpath("areas") +dofile(areas.modpath.."/settings.lua") +dofile(areas.modpath.."/api.lua") +dofile(areas.modpath.."/internal.lua") +dofile(areas.modpath.."/chatcommands.lua") +dofile(areas.modpath.."/pos.lua") +dofile(areas.modpath.."/interact.lua") +dofile(areas.modpath.."/legacy.lua") +dofile(areas.modpath.."/hud.lua") + +areas:load() + +minetest.register_privilege("areas", { + description = "Can administer areas." +}) +minetest.register_privilege("areas_high_limit", { + description = "Can can more, bigger areas." +}) + +if not minetest.registered_privileges[areas.config.self_protection_privilege] then + minetest.register_privilege(areas.config.self_protection_privilege, { + description = "Can protect areas.", + }) +end + +if minetest.setting_getbool("log_mod") then + local diffTime = os.clock() - areas.startTime + minetest.log("action", "areas loaded in "..diffTime.."s.") +end + diff --git a/areas/interact.lua b/areas/interact.lua new file mode 100644 index 0000000..2e54800 --- /dev/null +++ b/areas/interact.lua @@ -0,0 +1,19 @@ + +local old_is_protected = minetest.is_protected +function minetest.is_protected(pos, name) + if not areas:canInteract(pos, name) then + return true + end + return old_is_protected(pos, name) +end + +minetest.register_on_protection_violation(function(pos, name) + if not areas:canInteract(pos, name) then + local owners = areas:getNodeOwners(pos) + minetest.chat_send_player(name, + ("%s is protected by %s."):format( + minetest.pos_to_string(pos), + table.concat(owners, ", "))) + end +end) + diff --git a/areas/internal.lua b/areas/internal.lua new file mode 100644 index 0000000..ea94a27 --- /dev/null +++ b/areas/internal.lua @@ -0,0 +1,265 @@ + +function areas:player_exists(name) + return minetest.auth_table[name] ~= nil +end + +-- Save the areas table to a file +function areas:save() + local datastr = minetest.serialize(self.areas) + if not datastr then + minetest.log("error", "[areas] Failed to serialize area data!") + return + end + local file, err = io.open(self.config.filename, "w") + if err then + return err + end + file:write(datastr) + file:close() +end + +-- Load the areas table from the save file +function areas:load() + local file, err = io.open(self.config.filename, "r") + if err then + self.areas = self.areas or {} + return err + end + self.areas = minetest.deserialize(file:read("*a")) + if type(self.areas) ~= "table" then + self.areas = {} + end + file:close() + self:populateStore() +end + +--- Checks an AreaStore ID. +-- Deletes the AreaStore (falling back to the iterative method) +-- and prints an error message if the ID is invalid. +-- @return Whether the ID was valid. +function areas:checkAreaStoreId(sid) + if not sid then + minetest.log("error", "AreaStore failed to find an ID for an " + .."area! Falling back to iterative area checking.") + self.store = nil + self.store_ids = nil + end + return sid and true or false +end + +-- Populates the AreaStore after loading, if needed. +function areas:populateStore() + if not rawget(_G, "AreaStore") then + return + end + local store = AreaStore() + local store_ids = {} + for id, area in pairs(areas.areas) do + local sid = store:insert_area(area.pos1, + area.pos2, tostring(id)) + if not self:checkAreaStoreId(sid) then + return + end + store_ids[id] = sid + end + self.store = store + self.store_ids = store_ids +end + +-- Finds the first usable index in a table +-- Eg: {[1]=false,[4]=true} -> 2 +local function findFirstUnusedIndex(t) + local i = 0 + repeat i = i + 1 + until t[i] == nil + return i +end + +--- Add a area. +-- @return The new area's ID. +function areas:add(owner, name, pos1, pos2, parent) + local id = findFirstUnusedIndex(self.areas) + self.areas[id] = { + name = name, + pos1 = pos1, + pos2 = pos2, + owner = owner, + parent = parent + } + -- Add to AreaStore + if self.store then + local sid = self.store:insert_area(pos1, pos2, tostring(id)) + if self:checkAreaStoreId(sid) then + self.store_ids[id] = sid + end + end + 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) + 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) + end + else + -- Update parents + local parent = self.areas[id].parent + local children = self:getChildren(id) + for _, cid in pairs(children) do + -- The subarea parent will be niled out if the + -- removed area does not have a parent + self.areas[cid].parent = parent + + end + end + + -- Remove main entry + self.areas[id] = nil + + -- Remove from AreaStore + if self.store then + self.store:remove_area(self.store_ids[id]) + self.store_ids[id] = nil + end +end + +-- Checks if a area between two points is entirely contained by another area +function areas:isSubarea(pos1, pos2, id) + local area = self.areas[id] + if not area then + return false + end + local p1, p2 = area.pos1, area.pos2 + if (pos1.x >= p1.x and pos1.x <= p2.x) and + (pos2.x >= p1.x and pos2.x <= p2.x) and + (pos1.y >= p1.y and pos1.y <= p2.y) and + (pos2.y >= p1.y and pos2.y <= p2.y) and + (pos1.z >= p1.z and pos1.z <= p2.z) and + (pos2.z >= p1.z and pos2.z <= p2.z) then + return true + end +end + +-- Returns a table (list) of children of an area given it's identifier +function areas:getChildren(id) + local children = {} + for cid, area in pairs(self.areas) do + if area.parent and area.parent == id then + table.insert(children, cid) + end + end + return children +end + +-- Checks if the user has sufficient privileges. +-- If the player is not a administrator it also checks +-- if the area intersects other areas that they do not own. +-- Also checks the size of the area and if the user already +-- has more than max_areas. +function areas:canPlayerAddArea(pos1, pos2, name) + local privs = minetest.get_player_privs(name) + if privs.areas then + return true + end + + -- Check self protection privilege, if it is enabled, + -- and if the area is too big. + if not self.config.self_protection or + not privs[areas.config.self_protection_privilege] then + return false, "Self protection is disabled or you do not have" + .." the necessary privilege." + end + + local max_size = privs.areas_high_limit and + self.config.self_protection_max_size_high or + self.config.self_protection_max_size + if + (pos2.x - pos1.x) > max_size.x or + (pos2.y - pos1.y) > max_size.y or + (pos2.z - pos1.z) > max_size.z then + return false, "Area is too big." + end + + -- Check number of areas the user has and make sure it not above the max + local count = 0 + for _, area in pairs(self.areas) do + if area.owner == name then + count = count + 1 + end + end + local max_areas = privs.areas_high_limit and + self.config.self_protection_max_areas_high or + self.config.self_protection_max_areas + if count >= max_areas then + return false, "You have reached the maximum amount of" + .." areas that you are allowed to protect." + end + + -- Check intersecting areas + local can, id = self:canInteractInArea(pos1, pos2, name) + if not can then + local area = self.areas[id] + return false, ("The area intersects with %s [%u] (%s).") + :format(area.name, id, area.owner) + end + + return true +end + +-- Given a id returns a string in the format: +-- "name [id]: owner (x1, y1, z1) (x2, y2, z2) -> children" +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, ", ") + end + 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 not area.parent then + table.insert(sa, area) + local newid = #sa + for _, subarea in pairs(self.areas) do + if subarea.parent == k then + subarea.parent = newid + table.insert(sa, subarea) + end + end + 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.areas[id] + if cur and minetest.check_player_privs(name, self.adminPrivs) then + return true + end + while cur do + if cur.owner == name then + return true + elseif cur.parent then + cur = self.areas[cur.parent] + else + return false + end + end + return false +end + diff --git a/areas/legacy.lua b/areas/legacy.lua new file mode 100644 index 0000000..83b3d27 --- /dev/null +++ b/areas/legacy.lua @@ -0,0 +1,138 @@ +-- This file contains functions to convert from +-- the old areas format and other compatability code. + +minetest.register_chatcommand("legacy_load_areas", { + params = "<version>", + description = "Loads, converts, and saves the areas from" + .." a legacy save file.", + privs = {areas=true, server=true}, + func = function(name, param) + minetest.chat_send_player(name, "Converting areas...") + local version = tonumber(param) + if version == 0 then + err = areas:node_ownership_load() + if err then + minetest.chat_send_player(name, "Error loading legacy file: "..err) + return + end + else + minetest.chat_send_player(name, "Invalid version number. (0 allowed)") + return + end + minetest.chat_send_player(name, "Legacy file loaded.") + + for k, area in pairs(areas.areas) do + -- 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} + + area.x1, area.y1, area.z1, + area.x2, area.y2, area.z2 = + nil, nil, nil, nil, nil, nil + + -- Area positions sorting + areas:sortPos(area.pos1, area.pos2) + + -- Add name + area.name = "unnamed" + + -- Remove ID + area.id = nil + end + minetest.chat_send_player(name, "Table format updated.") + + areas:save() + minetest.chat_send_player(name, "Converted areas saved. Done.") + end +}) + +function areas:node_ownership_load() + local filename = minetest.get_worldpath().."/owners.tbl" + tables, err = loadfile(filename) + if err then + return err + end + + tables = tables() + for idx = 1, #tables do + local tolinkv, tolinki = {}, {} + for i, v in pairs(tables[idx]) do + if type(v) == "table" and tables[v[1]] then + table.insert(tolinkv, {i, tables[v[1]]}) + end + if type(i) == "table" and tables[i[1]] then + table.insert(tolinki, {i, tables[i[1]]}) + end + end + -- link values, first due to possible changes of indices + for _, v in ipairs(tolinkv) do + tables[idx][v[1]] = v[2] + end + -- link indices + for _, v in ipairs(tolinki) do + tables[idx][v[2]], tables[idx][v[1]] = tables[idx][v[1]], nil + end + end + self.areas = tables[1] +end + +-- Returns the name of the first player that owns an area +function areas.getNodeOwnerName(pos) + for id, area in pairs(areas:getAreasAtPos(pos)) do + return area.owner + end + return false +end + +-- Checks if a node is owned by you +function areas.isNodeOwner(pos, name) + if minetest.check_player_privs(name, areas.adminPrivs) then + return true + end + for id, area in pairs(areas:getAreasAtPos(pos)) do + if name == area.owner then + return true + end + end + return false +end + +-- Checks if an area has an owner +function areas.hasOwner(pos) + for id, area in pairs(areas:getAreasAtPos(pos)) do + return true + end + return false +end + +IsPlayerNodeOwner = areas.isNodeOwner +GetNodeOwnerName = areas.getNodeOwnerName +HasOwner = areas.hasOwner + +-- This is entirely untested and may break in strange and new ways. +if areas.config.legacy_table then + owner_defs = setmetatable({}, { + __index = function(table, key) + local a = rawget(areas.areas, key) + if not a then return a end + local b = {} + for k, v in pairs(a) do b[k] = v end + b.x1, b.y1, b.z1 = b.pos1.x, b.pos1.y, b.pos1.z + b.x2, b.y1, b.z2 = b.pos2.x, b.pos2.y, b.pos2.z + b.pos1, b.pos2 = nil, nil + b.id = key + return b + end, + __newindex = function(table, key, value) + local a = value + a.pos1, a.pos2 = {x=a.x1, y=a.y1, z=a.z1}, + {x=a.x2, y=a.y2, z=a.z2} + a.x1, a.y1, a.z1, a.x2, a.y2, a.z2 = + nil, nil, nil, nil, nil, nil + a.name = a.name or "unnamed" + a.id = nil + return rawset(areas.areas, key, a) + end + }) +end + diff --git a/areas/pos.lua b/areas/pos.lua new file mode 100644 index 0000000..8d3e6fe --- /dev/null +++ b/areas/pos.lua @@ -0,0 +1,255 @@ + +-- I could depend on WorldEdit for this, but you need to have the 'worldedit' +-- permission to use those commands and you don't have +-- /area_pos{1,2} [X Y Z|X,Y,Z]. +-- Since this is mostly copied from WorldEdit it is mostly +-- licensed under the AGPL. (select_area is a exception) + +areas.marker1 = {} +areas.marker2 = {} +areas.set_pos = {} +areas.pos1 = {} +areas.pos2 = {} + +minetest.register_chatcommand("select_area", { + params = "<ID>", + description = "Select a area by id.", + func = function(name, param) + local id = tonumber(param) + if not id then + return false, "Invalid usage, see /help select_area." + end + if not areas.areas[id] then + return false, "The area "..id.." does not exist." + end + + areas:setPos1(name, areas.areas[id].pos1) + areas:setPos2(name, areas.areas[id].pos2) + return true, "Area "..id.." selected." + end, +}) + +minetest.register_chatcommand("area_pos1", { + params = "[X Y Z|X,Y,Z]", + description = "Set area protection region position 1 to your" + .." location or the one specified", + privs = {}, + func = function(name, param) + local pos = nil + local found, _, x, y, z = param:find( + "^(-?%d+)[, ](-?%d+)[, ](-?%d+)$") + if found then + pos = {x=tonumber(x), y=tonumber(y), z=tonumber(z)} + elseif param == "" then + local player = minetest.get_player_by_name(name) + if player then + pos = player:getpos() + else + return false, "Unable to get position." + end + else + return false, "Invalid usage, see /help area_pos1." + end + pos = vector.round(pos) + areas:setPos1(name, pos) + return true, "Area position 1 set to " + ..minetest.pos_to_string(pos) + end, +}) + +minetest.register_chatcommand("area_pos2", { + params = "[X Y Z|X,Y,Z]", + description = "Set area protection region position 2 to your" + .." location or the one specified", + func = function(name, param) + local pos = nil + local found, _, x, y, z = param:find( + "^(-?%d+)[, ](-?%d+)[, ](-?%d+)$") + if found then + pos = {x=tonumber(x), y=tonumber(y), z=tonumber(z)} + elseif param == "" then + local player = minetest.get_player_by_name(name) + if player then + pos = player:getpos() + else + return false, "Unable to get position." + end + else + return false, "Invalid usage, see /help area_pos2." + end + pos = vector.round(pos) + areas:setPos2(name, pos) + return true, "Area position 2 set to " + ..minetest.pos_to_string(pos) + end, +}) + + +minetest.register_chatcommand("area_pos", { + params = "set/set1/set2/get", + description = "Set area protection region, position 1, or position 2" + .." by punching nodes, or display the region", + func = function(name, param) + if param == "set" then -- Set both area positions + areas.set_pos[name] = "pos1" + return true, "Select positions by punching two nodes." + elseif param == "set1" then -- Set area position 1 + areas.set_pos[name] = "pos1only" + return true, "Select position 1 by punching a node." + elseif param == "set2" then -- Set area position 2 + areas.set_pos[name] = "pos2" + return true, "Select position 2 by punching a node." + elseif param == "get" then -- Display current area positions + local pos1str, pos2str = "Position 1: ", "Position 2: " + if areas.pos1[name] then + pos1str = pos1str..minetest.pos_to_string(areas.pos1[name]) + else + pos1str = pos1str.."<not set>" + end + if areas.pos2[name] then + pos2str = pos2str..minetest.pos_to_string(areas.pos2[name]) + else + pos2str = pos2str.."<not set>" + end + return true, pos1str.."\n"..pos2str + else + return false, "Unknown subcommand: "..param + end + end, +}) + +function areas:getPos(playerName) + local pos1, pos2 = areas.pos1[playerName], areas.pos2[playerName] + if not (pos1 and pos2) then + return nil + end + -- Copy positions so that the area table doesn't contain multiple + -- references to the same position. + pos1, pos2 = vector.new(pos1), vector.new(pos2) + return areas:sortPos(pos1, pos2) +end + +function areas:setPos1(playerName, pos) + areas.pos1[playerName] = pos + areas.markPos1(playerName) +end + +function areas:setPos2(playerName, pos) + areas.pos2[playerName] = pos + areas.markPos2(playerName) +end + + +minetest.register_on_punchnode(function(pos, node, puncher) + local name = puncher:get_player_name() + -- Currently setting position + if name ~= "" and areas.set_pos[name] then + if areas.set_pos[name] == "pos1" then + areas.pos1[name] = pos + areas.markPos1(name) + areas.set_pos[name] = "pos2" + minetest.chat_send_player(name, + "Position 1 set to " + ..minetest.pos_to_string(pos)) + elseif areas.set_pos[name] == "pos1only" then + areas.pos1[name] = pos + areas.markPos1(name) + areas.set_pos[name] = nil + minetest.chat_send_player(name, + "Position 1 set to " + ..minetest.pos_to_string(pos)) + elseif areas.set_pos[name] == "pos2" then + areas.pos2[name] = pos + areas.markPos2(name) + areas.set_pos[name] = nil + minetest.chat_send_player(name, + "Position 2 set to " + ..minetest.pos_to_string(pos)) + end + end +end) + +-- Modifies positions `pos1` and `pos2` so that each component of `pos1` +-- is less than or equal to its corresponding component of `pos2`, +-- returning the two positions. +function areas:sortPos(pos1, pos2) + if pos1.x > pos2.x then + pos2.x, pos1.x = pos1.x, pos2.x + end + if pos1.y > pos2.y then + pos2.y, pos1.y = pos1.y, pos2.y + end + if pos1.z > pos2.z then + pos2.z, pos1.z = pos1.z, pos2.z + end + return pos1, pos2 +end + +-- Marks area position 1 +areas.markPos1 = function(name) + local pos = areas.pos1[name] + if areas.marker1[name] ~= nil then -- Marker already exists + areas.marker1[name]:remove() -- Remove marker + areas.marker1[name] = nil + end + if pos ~= nil then -- Add marker + areas.marker1[name] = minetest.add_entity(pos, "areas:pos1") + areas.marker1[name]:get_luaentity().active = true + end +end + +-- Marks area position 2 +areas.markPos2 = function(name) + local pos = areas.pos2[name] + if areas.marker2[name] ~= nil then -- Marker already exists + areas.marker2[name]:remove() -- Remove marker + areas.marker2[name] = nil + end + if pos ~= nil then -- Add marker + areas.marker2[name] = minetest.add_entity(pos, "areas:pos2") + areas.marker2[name]:get_luaentity().active = true + end +end + +minetest.register_entity("areas:pos1", { + initial_properties = { + visual = "cube", + visual_size = {x=1.1, y=1.1}, + textures = {"areas_pos1.png", "areas_pos1.png", + "areas_pos1.png", "areas_pos1.png", + "areas_pos1.png", "areas_pos1.png"}, + collisionbox = {-0.55, -0.55, -0.55, 0.55, 0.55, 0.55}, + }, + on_step = function(self, dtime) + if self.active == nil then + self.object:remove() + end + end, + on_punch = function(self, hitter) + self.object:remove() + local name = hitter:get_player_name() + areas.marker1[name] = nil + end, +}) + +minetest.register_entity("areas:pos2", { + initial_properties = { + visual = "cube", + visual_size = {x=1.1, y=1.1}, + textures = {"areas_pos2.png", "areas_pos2.png", + "areas_pos2.png", "areas_pos2.png", + "areas_pos2.png", "areas_pos2.png"}, + collisionbox = {-0.55, -0.55, -0.55, 0.55, 0.55, 0.55}, + }, + on_step = function(self, dtime) + if self.active == nil then + self.object:remove() + end + end, + on_punch = function(self, hitter) + self.object:remove() + local name = hitter:get_player_name() + areas.marker2[name] = nil + end, +}) + diff --git a/areas/settings.lua b/areas/settings.lua new file mode 100644 index 0000000..140a655 --- /dev/null +++ b/areas/settings.lua @@ -0,0 +1,43 @@ +local world_path = minetest.get_worldpath() + +areas.config = {} + +local function setting(tp, name, default) + local full_name = "areas."..name + local value + if tp == "boolean" then + value = minetest.setting_getbool(full_name) + elseif tp == "string" then + value = minetest.setting_get(full_name) + elseif tp == "position" then + value = minetest.setting_get_pos(full_name) + elseif tp == "number" then + value = tonumber(minetest.setting_get(full_name)) + else + error("Invalid setting type!") + end + if value == nil then + value = default + end + areas.config[name] = value +end + +-------------- +-- Settings -- +-------------- + +setting("string", "filename", world_path.."/areas.dat") + +-- Allow players with a privilege create their own areas +-- within the maximum size and number. +setting("boolean", "self_protection", false) +setting("string", "self_protection_privilege", "interact") +setting("position", "self_protection_max_size", {x=64, y=128, z=64}) +setting("number", "self_protection_max_areas", 4) +-- For players with the areas_high_limit privilege. +setting("position", "self_protection_max_size_high", {x=512, y=512, z=512}) +setting("number", "self_protection_max_areas_high", 32) + +-- legacy_table (owner_defs) compatibility. Untested and has known issues. +setting("boolean", "legacy_table", false) + diff --git a/areas/textures/areas_pos1.png b/areas/textures/areas_pos1.png Binary files differnew file mode 100644 index 0000000..4c304aa --- /dev/null +++ b/areas/textures/areas_pos1.png diff --git a/areas/textures/areas_pos2.png b/areas/textures/areas_pos2.png Binary files differnew file mode 100644 index 0000000..1502f16 --- /dev/null +++ b/areas/textures/areas_pos2.png |
