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biome_lib
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rather than copy the re-check log back into the block log when it comes 

time to run through it, just use it in-place, copying its entries back
to the main block log if they have to be skipped again (essentially
using the re-check list and the end of the block log as a double buffer)
This commit is contained in:
Vanessa Dannenberg 2021-04-07 01:44:31 -04:00
parent e346fd599f
commit 531577afcf
2 changed files with 38 additions and 15 deletions
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46
init.lua
View File

@ -440,23 +440,51 @@ local function confirm_block_surroundings(p)
end
biome_lib.block_recheck_list = {}
biome_lib.run_block_recheck_list = false
function biome_lib.generate_block(shutting_down)
if not biome_lib.block_log[1] then return end -- the block log is empty
local minp = biome_lib.block_log[1][1]
local maxp = biome_lib.block_log[1][2]
local airflag = biome_lib.block_log[1][3]
if shutting_down then
if #biome_lib.block_recheck_list > 0 then
for i = 1, #biome_lib.block_recheck_list do
biome_lib.block_log[#biome_lib.block_log + 1] = biome_lib.block_recheck_list[i]
end
biome_lib.block_recheck_list = {}
end
biome_lib.run_block_recheck_list = false
else
if biome_lib.run_block_recheck_list
and not biome_lib.block_recheck_list[1] then
biome_lib.run_block_recheck_list = false
end
end
local blocklog = biome_lib.run_block_recheck_list
and biome_lib.block_recheck_list
or biome_lib.block_log
if not blocklog[1] then return end
local minp = blocklog[1][1]
local maxp = blocklog[1][2]
local airflag = blocklog[1][3]
local pos_hash = minetest.hash_node_position(minp)
if not biome_lib.pos_hash then -- we need to read the maplock and get the surfaces list
biome_lib.pos_hash = {}
if not confirm_block_surroundings(minp) and not shutting_down then -- if any neighbors appear not to be loaded, move this block to the end of the queue
biome_lib.block_recheck_list[#biome_lib.block_recheck_list + 1] = table.copy(biome_lib.block_log[1])
table.remove(biome_lib.block_log, 1)
if not confirm_block_surroundings(minp)
and not shutting_down then -- if any neighbors appear not to be loaded, skip this block for now
if biome_lib.run_block_recheck_list then
biome_lib.block_log[#biome_lib.block_log + 1] = table.copy(biome_lib.block_recheck_list[1])
table.remove(biome_lib.block_recheck_list, 1)
else
biome_lib.block_recheck_list[#biome_lib.block_recheck_list + 1] = table.copy(biome_lib.block_log[1])
table.remove(biome_lib.block_log, 1)
end
biome_lib.pos_hash = nil
biome_lib:dbg("Mapblock at "..minetest.pos_to_string(minp)..
" had a neighbor not fully emerged, moved it to the \"check-later\" list.")
" had a neighbor not fully emerged, skipped it for now.")
return
else
biome_lib.pos_hash.surface_node_list = airflag
@ -475,7 +503,7 @@ function biome_lib.generate_block(shutting_down)
if #biome_lib.pos_hash.surface_node_list > 0 then
biome_lib:dbg("Deleted mapblock "..minetest.pos_to_string(minp).." from the block log")
end
table.remove(biome_lib.block_log, 1)
table.remove(blocklog, 1)
biome_lib.pos_hash = nil
else
-- below, [1] is biome, [2] is the thing to be added

7
search_functions.lua
View File

@ -70,10 +70,5 @@ minetest.register_on_generated(function(minp, maxp, blockseed)
end
end
end
if #biome_lib.block_recheck_list > 0 then
for i = 1, #biome_lib.block_recheck_list do
biome_lib.block_log[#biome_lib.block_log + 1] = table.copy(biome_lib.block_recheck_list[i])
end
end
biome_lib.block_recheck_list = {}
biome_lib.run_block_recheck_list = true
end)