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Add /emergeblocks command and core.emerge_area() Lua API
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@ -554,6 +554,36 @@ assert(core.string_to_pos("10.0, 5, -2").x == 10)
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assert(core.string_to_pos("( 10.0, 5, -2)").z == -2)
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assert(core.string_to_pos("asd, 5, -2)") == nil)
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--------------------------------------------------------------------------------
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function core.string_to_area(value)
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local p1, p2 = unpack(value:split(") ("))
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if p1 == nil or p2 == nil then
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return nil
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end
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p1 = core.string_to_pos(p1 .. ")")
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p2 = core.string_to_pos("(" .. p2)
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if p1 == nil or p2 == nil then
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return nil
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end
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return p1, p2
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end
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local function test_string_to_area()
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local p1, p2 = core.string_to_area("(10.0, 5, -2) ( 30.2, 4, -12.53)")
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assert(p1.x == 10.0 and p1.y == 5 and p1.z == -2)
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assert(p2.x == 30.2 and p2.y == 4 and p2.z == -12.53)
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p1, p2 = core.string_to_area("(10.0, 5, -2 30.2, 4, -12.53")
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assert(p1 == nil and p2 == nil)
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p1, p2 = core.string_to_area("(10.0, 5,) -2 fgdf2, 4, -12.53")
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assert(p1 == nil and p2 == nil)
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end
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test_string_to_area()
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--------------------------------------------------------------------------------
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function table.copy(t, seen)
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local n = {}
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@ -51,6 +51,27 @@ core.register_on_chat_message(function(name, message)
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return true -- Handled chat message
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end)
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-- Parses a "range" string in the format of "here (number)" or
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-- "(x1, y1, z1) (x2, y2, z2)", returning two position vectors
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local function parse_range_str(player_name, str)
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local p1, p2
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local args = str:split(" ")
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if args[1] == "here" then
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p1, p2 = core.get_player_radius_area(player_name, tonumber(args[2]))
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if p1 == nil then
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return false, "Unable to get player " .. player_name .. " position"
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end
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else
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p1, p2 = core.string_to_area(str)
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if p1 == nil then
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return false, "Incorrect area format. Expected: (x1,y1,z1) (x2,y2,z2)"
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end
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end
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return p1, p2
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end
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--
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-- Chat commands
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--
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@ -415,40 +436,31 @@ core.register_chatcommand("set", {
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end,
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})
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core.register_chatcommand("emergeblocks", {
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params = "(here [radius]) | (<pos1> <pos2>)",
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description = "starts loading (or generating, if inexistent) map blocks "
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.. "contained in area pos1 to pos2",
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privs = {server=true},
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func = function(name, param)
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local p1, p2 = parse_range_str(name, param)
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if p1 == false then
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return false, p2
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end
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core.emerge_area(p1, p2)
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return true, "Started emerge of area ranging from " ..
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core.pos_to_string(p1, 1) .. " to " .. core.pos_to_string(p2, 1)
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end,
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})
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core.register_chatcommand("deleteblocks", {
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params = "(here [radius]) | (<pos1> <pos2>)",
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description = "delete map blocks contained in area pos1 to pos2",
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privs = {server=true},
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func = function(name, param)
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local p1 = {}
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local p2 = {}
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local args = param:split(" ")
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if args[1] == "here" then
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local player = core.get_player_by_name(name)
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if player == nil then
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core.log("error", "player is nil")
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return false, "Unable to get current position; player is nil"
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end
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p1 = player:getpos()
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p2 = p1
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if #args >= 2 then
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local radius = tonumber(args[2]) or 0
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p1 = vector.add(p1, radius)
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p2 = vector.subtract(p2, radius)
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end
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else
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local pos1, pos2 = unpack(param:split(") ("))
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if pos1 == nil or pos2 == nil then
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return false, "Incorrect area format. Expected: (x1,y1,z1) (x2,y2,z2)"
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end
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p1 = core.string_to_pos(pos1 .. ")")
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p2 = core.string_to_pos("(" .. pos2)
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if p1 == nil or p2 == nil then
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return false, "Incorrect area format. Expected: (x1,y1,z1) (x2,y2,z2)"
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end
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local p1, p2 = parse_range_str(name, param)
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if p1 == false then
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return false, p2
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end
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if core.delete_area(p1, p2) then
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@ -109,6 +109,25 @@ function core.get_connected_players()
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return temp_table
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end
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-- Returns two position vectors representing a box of `radius` in each
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-- direction centered around the player corresponding to `player_name`
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function core.get_player_radius_area(player_name, radius)
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local player = core.get_player_by_name(player_name)
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if player == nil then
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return nil
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end
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local p1 = player:getpos()
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local p2 = p1
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if radius then
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p1 = vector.subtract(p1, radius)
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p2 = vector.add(p2, radius)
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end
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return p1, p2
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end
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function core.hash_node_position(pos)
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return (pos.z+32768)*65536*65536 + (pos.y+32768)*65536 + pos.x+32768
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end
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@ -1708,6 +1708,8 @@ Helper functions
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* Convert position to a printable string
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* `minetest.string_to_pos(string)`: returns a position
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* Same but in reverse. Returns `nil` if the string can't be parsed to a position.
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* `minetest.string_to_area("(X1, Y1, Z1) (X2, Y2, Z2)")`: returns two positions
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* Converts a string representing an area box into two positions
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* `minetest.formspec_escape(string)`: returns a string
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* escapes the characters "[", "]", "\", "," and ";", which can not be used in formspecs
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* `minetest.is_yes(arg)`
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@ -2020,6 +2022,9 @@ and `minetest.auth_reload` call the authetification handler.
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* `pos1` and `pos2` are optional and default to mapchunk minp and maxp.
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* `minetest.clear_objects()`
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* clear all objects in the environments
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* `minetest.emerge_area(pos1, pos2)`
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* queues all mapblocks in the area from pos1 to pos2, inclusive, for emerge
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* i.e. asynchronously loads blocks from disk, or if inexistent, generates them
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* `minetest.delete_area(pos1, pos2)`
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* delete all mapblocks in the area from pos1 to pos2, inclusive
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* `minetest.line_of_sight(pos1, pos2, stepsize)`: returns `boolean, pos`
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@ -235,11 +235,13 @@ void EmergeManager::stopThreads()
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}
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bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate)
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bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p,
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bool allow_generate, bool force_queue_block)
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{
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std::map<v3s16, BlockEmergeData *>::const_iterator iter;
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BlockEmergeData *bedata;
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u16 count;
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u16 count_global = 0;
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u16 count_peer = 0;
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u8 flags = 0;
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int idx = 0;
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@ -249,14 +251,17 @@ bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate
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{
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MutexAutoLock queuelock(queuemutex);
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count = blocks_enqueued.size();
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if (count >= qlimit_total)
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return false;
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count_global = blocks_enqueued.size();
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count_peer = peer_queue_count[peer_id];
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count = peer_queue_count[peer_id];
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u16 qlimit_peer = allow_generate ? qlimit_generate : qlimit_diskonly;
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if (count >= qlimit_peer)
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return false;
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if (!force_queue_block) {
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if (count_global >= qlimit_total)
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return false;
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u16 qlimit_peer = allow_generate ? qlimit_generate : qlimit_diskonly;
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if (count_peer >= qlimit_peer)
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return false;
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}
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iter = blocks_enqueued.find(p);
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if (iter != blocks_enqueued.end()) {
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@ -270,7 +275,7 @@ bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate
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bedata->peer_requested = peer_id;
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blocks_enqueued.insert(std::make_pair(p, bedata));
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peer_queue_count[peer_id] = count + 1;
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peer_queue_count[peer_id] = count_peer + 1;
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// insert into the EmergeThread queue with the least items
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int lowestitems = emergethread[0]->blockqueue.size();
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@ -289,6 +294,21 @@ bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate
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return true;
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}
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v3s16 EmergeManager::getContainingChunk(v3s16 blockpos)
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{
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return getContainingChunk(blockpos, params.chunksize);
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}
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v3s16 EmergeManager::getContainingChunk(v3s16 blockpos, s16 chunksize)
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{
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s16 coff = -chunksize / 2;
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v3s16 chunk_offset(coff, coff, coff);
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return getContainerPos(blockpos - chunk_offset, chunksize)
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* chunksize + chunk_offset;
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}
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int EmergeManager::getGroundLevelAtPoint(v2s16 p)
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{
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@ -109,9 +109,13 @@ public:
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static void getMapgenNames(std::list<const char *> &mgnames);
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void startThreads();
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void stopThreads();
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bool enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate);
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bool enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate,
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bool force_queue_block=false);
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//mapgen helper methods
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v3s16 getContainingChunk(v3s16 blockpos);
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static v3s16 getContainingChunk(v3s16 blockpos, s16 chunksize);
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// mapgen helper methods
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Biome *getBiomeAtPoint(v3s16 p);
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int getGroundLevelAtPoint(v2s16 p);
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bool isBlockUnderground(v3s16 blockpos);
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11
src/map.cpp
11
src/map.cpp
@ -2259,14 +2259,9 @@ bool ServerMap::initBlockMake(BlockMakeData *data, v3s16 blockpos)
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bool enable_mapgen_debug_info = m_emerge->mapgen_debug_info;
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EMERGE_DBG_OUT("initBlockMake(): " PP(blockpos) " - " PP(blockpos));
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s16 chunksize = m_emerge->params.chunksize;
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s16 coffset = -chunksize / 2;
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v3s16 chunk_offset(coffset, coffset, coffset);
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v3s16 blockpos_div = getContainerPos(blockpos - chunk_offset, chunksize);
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v3s16 blockpos_min = blockpos_div * chunksize;
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v3s16 blockpos_max = blockpos_div * chunksize + v3s16(1,1,1)*(chunksize-1);
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blockpos_min += chunk_offset;
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blockpos_max += chunk_offset;
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s16 csize = m_emerge->params.chunksize;
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v3s16 blockpos_min = EmergeManager::getContainingChunk(blockpos, csize);
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v3s16 blockpos_max = blockpos_min + v3s16(1, 1, 1) * (csize - 1);
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v3s16 extra_borders(1,1,1);
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@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "util/pointedthing.h"
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#include "content_sao.h"
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#include "treegen.h"
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#include "emerge.h"
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#include "pathfinder.h"
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#define GET_ENV_PTR ServerEnvironment* env = \
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@ -751,6 +752,29 @@ int ModApiEnvMod::l_line_of_sight(lua_State *L)
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return 1;
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}
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// emerge_area(p1, p2)
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// emerge mapblocks in area p1..p2
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int ModApiEnvMod::l_emerge_area(lua_State *L)
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{
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GET_ENV_PTR;
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EmergeManager *emerge = getServer(L)->getEmergeManager();
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v3s16 bpmin = getNodeBlockPos(read_v3s16(L, 1));
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v3s16 bpmax = getNodeBlockPos(read_v3s16(L, 2));
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sortBoxVerticies(bpmin, bpmax);
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for (s16 z = bpmin.Z; z <= bpmax.Z; z++)
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for (s16 y = bpmin.Y; y <= bpmax.Y; y++)
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for (s16 x = bpmin.X; x <= bpmax.X; x++) {
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v3s16 chunkpos(x, y, z);
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emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, chunkpos, false, true);
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}
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return 0;
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}
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// delete_area(p1, p2)
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// delete mapblocks in area p1..p2
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int ModApiEnvMod::l_delete_area(lua_State *L)
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@ -954,6 +978,7 @@ void ModApiEnvMod::Initialize(lua_State *L, int top)
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API_FCT(find_node_near);
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API_FCT(find_nodes_in_area);
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API_FCT(find_nodes_in_area_under_air);
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API_FCT(emerge_area);
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API_FCT(delete_area);
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API_FCT(get_perlin);
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API_FCT(get_perlin_map);
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@ -125,6 +125,9 @@ private:
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// nodenames: eg. {"ignore", "group:tree"} or "default:dirt"
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static int l_find_nodes_in_area_under_air(lua_State *L);
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// emerge_area(p1, p2)
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static int l_emerge_area(lua_State *L);
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// delete_area(p1, p2) -> true/false
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static int l_delete_area(lua_State *L);
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