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Add limitations to respawn search algorithm to make it work faster

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This commit is contained in:
kay27 2021-01-17 22:07:02 +04:00
parent 427ac03a4d
commit 81c27363a3
1 changed files with 86 additions and 15 deletions
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101
mods/PLAYER/mcl_spawn/init.lua
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@ -9,6 +9,9 @@ local storage = minetest.get_mod_storage()
local respawn_search_interval = 30 -- seconds
local respawn_search_initial_delay = 30 -- seconds
local trees_distance_max = 30 -- nodes
local attempts_to_find_pos = 50
local attempts_to_find_trees = 50
local node_groups_white_list = {"group:soil"}
local biomes_white_list = {
"ColdTaiga",
@ -74,6 +77,7 @@ local edge_len = storage:get_int("mcl_spawn_edge_len") or 1
local edge_dist = storage:get_int("mcl_spawn_edge_dist") or 0
local dir_step = storage:get_int("mcl_spawn_dir_step") or 0
local dir_ind = storage:get_int("mcl_spawn_dir_ind") or 1
local emerge_pos1, emerge_pos2
-- Get world 'mapgen_limit' and 'chunksize' to calculate 'spawn_limit'.
-- This accounts for how mapchunks are not generated if they or their shell exceed
@ -96,6 +100,21 @@ local function get_far_node(pos)
return minetest.get_node(pos)
end
local function get_trees(pos, pos2)
if emerge_pos1 and emerge_pos2 and pos then
if not pos2 then
local b1 = {x = math.max(pos.x-trees_distance_max, emerge_pos1.x), y = math.max(pos.y-trees_distance_max, emerge_pos1.y), z = math.max(pos.z-trees_distance_max, emerge_pos1.z)}
local b2 = {x = math.min(pos.x+trees_distance_max, emerge_pos2.x), y = math.min(pos.y+trees_distance_max, emerge_pos2.y), z = math.min(pos.z+trees_distance_max, emerge_pos2.z)}
return minetest.find_nodes_in_area(b1, b2, {"group:tree"}, false)
else
local b1 = {x = math.max(pos.x , emerge_pos1.x), y = math.max(pos.y , emerge_pos1.y), z = math.max(pos.z, emerge_pos1.z)}
local b2 = {x = math.min(pos2.x, emerge_pos2.x), y = math.min(pos2.y, emerge_pos2.y), z = math.min(pos2.z, emerge_pos2.z)}
return minetest.find_nodes_in_area(b1, b2, {"group:tree"}, false)
end
end
return nil
end
local function good_for_respawn(pos, player)
local pos0 = {x = pos.x, y = pos.y - 1, z = pos.z}
local pos1 = {x = pos.x, y = pos.y, z = pos.z}
@ -116,6 +135,9 @@ local function good_for_respawn(pos, player)
or minetest.is_protected(pos2, player or "")
or (not player and minetest.get_node_light(pos1, 0.5) < 8)
or (not player and minetest.get_node_light(pos2, 0.5) < 8)
or nn0 == "ignore"
or nn1 == "ignore"
or nn2 == "ignore"
then
return false
end
@ -128,9 +150,37 @@ local function good_for_respawn(pos, player)
(def1.damage_per_second == nil or def2.damage_per_second <= 0)
end
local function can_find_tree(pos1)
local trees = minetest.find_nodes_in_area(vector.subtract(pos1,half_res), vector.add(pos1,half_res), {"group:tree"}, false)
for _, pos2 in ipairs(trees) do
local function can_find_tree(pos1, trees)
if not emerge_pos1 or not emerge_pos2 then return false end
local trees = trees or get_trees(pos1)
if not trees then return false end
if (attempts_to_find_trees * 3 < #trees) then
-- random search
for i = 1, attempts_to_find_trees do
local pos2 = trees[math.random(1,#trees)]
if not minetest.is_protected(pos2, "") then
if pos2.x < pos1.x then
pos2.x = pos2.x + 1
elseif pos2.x > pos1.x then
pos2.x = pos2.x - 1
end
if pos2.z < pos1.z then
pos2.z = pos2.z + 1
elseif pos2.z > pos1.z then
pos2.z = pos2.z - 1
end
local way = minetest.find_path(pos1, pos2, res, 1, 3, "A*_noprefetch")
if way then
return true
end
end
end
return false
end
for i, pos2 in ipairs(trees) do
-- full search
if not minetest.is_protected(pos2, "") then
if pos2.x < pos1.x then
pos2.x = pos2.x + 1
@ -147,6 +197,7 @@ local function can_find_tree(pos1)
return true
end
end
if i > attempts_to_find_trees then return false end
end
return false
end
@ -208,20 +259,40 @@ end
local function ecb_search_continue(blockpos, action, calls_remaining, param)
if calls_remaining <= 0 then
local pos1 = {x = wsp.x-half_res, y = alt_min, z = wsp.z-half_res}
local pos2 = {x = wsp.x+half_res, y = alt_max, z = wsp.z+half_res}
local nodes = minetest.find_nodes_in_area_under_air(pos1, pos2, node_groups_white_list)
emerge_pos1 = {x = wsp.x-half_res, y = alt_min, z = wsp.z-half_res}
emerge_pos2 = {x = wsp.x+half_res, y = alt_max, z = wsp.z+half_res}
local nodes = minetest.find_nodes_in_area_under_air(emerge_pos1, emerge_pos2, node_groups_white_list)
minetest.log("verbose", "[mcl_spawn] Data emerge callback: "..minetest.pos_to_string(wsp).." - "..tostring(nodes and #nodes) .. " node(s) found under air")
if nodes then
for i=1, #nodes do
wsp = nodes[i]
if wsp then
wsp.y = wsp.y + 1
if good_for_respawn(wsp) and can_find_tree(wsp) then
minetest.log("action", "[mcl_spawn] Dynamic world spawn determined to be "..minetest.pos_to_string(wsp))
searched = true
success = true
return
local trees = get_trees(emerge_pos1, emerge_pos2)
if trees then
if attempts_to_find_pos * 3 < #nodes then
-- random
for i=1, attempts_to_find_pos do
wsp = nodes[math.random(1,#nodes)]
if wsp then
wsp.y = wsp.y + 1
if good_for_respawn(wsp) and can_find_tree(wsp, trees) then
minetest.log("action", "[mcl_spawn] Dynamic world spawn determined to be "..minetest.pos_to_string(wsp))
searched = true
success = true
return
end
end
end
else
-- in a sequence
for i=1, math.min(#nodes, attempts_to_find_pos) do
wsp = nodes[i]
if wsp then
wsp.y = wsp.y + 1
if good_for_respawn(wsp) and can_find_tree(wsp, trees) then
minetest.log("action", "[mcl_spawn] Dynamic world spawn determined to be "..minetest.pos_to_string(wsp))
searched = true
success = true
return
end
end
end
end
end