140 lines
4.7 KiB
Lua
140 lines
4.7 KiB
Lua
-- Iterate through the mapblock log,
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-- populating blocks with new stuff in the process.
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minetest.register_globalstep(function(dtime)
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if not biome_lib.block_log[1] then return end -- the block log is empty
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if math.random(100) > biome_lib.queue_ratio then return end
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for s = 1, biome_lib.entries_per_step do
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biome_lib.generate_block()
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end
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end)
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-- Periodically wake-up the queue to give old blocks a chance to time-out
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-- if the player isn't currently exploring (i.e. they're just playing in one area)
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function biome_lib.wake_up_queue()
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if #biome_lib.block_recheck_list > 1
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and #biome_lib.block_log == 0 then
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biome_lib.block_log[#biome_lib.block_log + 1] =
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table.copy(biome_lib.block_recheck_list[#biome_lib.block_recheck_list])
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biome_lib.block_recheck_list[#biome_lib.block_recheck_list] = nil
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biome_lib.run_block_recheck_list = true
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biome_lib.dbg("Woke-up the map queue to give old blocks a chance to time-out.", 3)
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end
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minetest.after(biome_lib.block_queue_wakeup_time, biome_lib.wake_up_queue)
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end
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biome_lib.wake_up_queue()
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-- Play out the entire log all at once on shutdown
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-- to prevent unpopulated map areas
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local function format_time(t)
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if t > 59999999 then
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return os.date("!%M minutes and %S seconds", math.ceil(t/1000000))
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else
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return os.date("!%S seconds", math.ceil(t/1000000))
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end
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end
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function biome_lib.check_remaining_time()
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if minetest.get_us_time() > (biome_lib.shutdown_last_timestamp + 10000000) then -- report progress every 10s
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biome_lib.shutdown_last_timestamp = minetest.get_us_time()
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local entries_remaining = #biome_lib.block_log + #biome_lib.block_recheck_list
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local total_purged = biome_lib.starting_count - entries_remaining
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local elapsed_time = biome_lib.shutdown_last_timestamp - biome_lib.shutdown_start_time
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biome_lib.dbg(string.format("%i entries, approximately %s remaining.",
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entries_remaining, format_time(elapsed_time/total_purged * entries_remaining)))
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end
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end
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--Purge the block log at shutdown
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minetest.register_on_shutdown(function()
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biome_lib.shutdown_start_time = minetest.get_us_time()
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biome_lib.shutdown_last_timestamp = minetest.get_us_time()+1
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biome_lib.starting_count = #biome_lib.block_log + #biome_lib.block_recheck_list
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if biome_lib.starting_count == 0 then
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return
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end
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biome_lib.dbg("Stand by, purging the mapblock log "..
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"(there are "..biome_lib.starting_count.." entries) ...", 0)
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while #biome_lib.block_log > 0 do
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biome_lib.generate_block(true)
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biome_lib.check_remaining_time()
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end
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if #biome_lib.block_recheck_list > 0 then
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biome_lib.block_log = table.copy(biome_lib.block_recheck_list)
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biome_lib.block_recheck_list = {}
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while #biome_lib.block_log > 0 do
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biome_lib.generate_block(true)
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biome_lib.check_remaining_time()
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end
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end
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biome_lib.dbg("Log purge completed after "..
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format_time(minetest.get_us_time() - biome_lib.shutdown_start_time)..".", 0)
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end)
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-- "Record" the map chunks being generated by the core mapgen,
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-- split into individual mapblocks to reduce lag
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minetest.register_on_generated(function(minp, maxp, blockseed)
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local timestamp = minetest.get_us_time()
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for y = 0, 4 do
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local miny = minp.y + y*16
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if miny >= biome_lib.mapgen_elevation_limit.min
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and (miny + 15) <= biome_lib.mapgen_elevation_limit.max then
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for x = 0, 4 do
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local minx = minp.x + x*16
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for z = 0, 4 do
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local minz = minp.z + z*16
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local bmin = {x=minx, y=miny, z=minz}
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local bmax = {x=minx + 15, y=miny + 15, z=minz + 15}
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biome_lib.block_log[#biome_lib.block_log + 1] = { bmin, bmax, true, timestamp }
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biome_lib.block_log[#biome_lib.block_log + 1] = { bmin, bmax, false, timestamp }
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end
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end
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else
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biome_lib.dbg("Did not enqueue mapblocks at elevation "..miny.."m, they're out of range of any generate_plant() calls.", 4)
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end
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end
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biome_lib.run_block_recheck_list = true
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end)
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if biome_lib.debug_log_level >= 3 then
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biome_lib.last_count = 0
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function biome_lib.show_pending_block_count()
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if biome_lib.last_count ~= #biome_lib.block_log then
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biome_lib.dbg(string.format("Pending block counts - ready to process: %-8icurrently deferred: %i",
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#biome_lib.block_log, #biome_lib.block_recheck_list), 3)
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biome_lib.last_count = #biome_lib.block_log
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biome_lib.queue_idle_flag = false
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elseif not biome_lib.queue_idle_flag then
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if #biome_lib.block_recheck_list > 0 then
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biome_lib.dbg("Mapblock queue only contains blocks that can't yet be processed.", 3)
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biome_lib.dbg("Idling the queue until new blocks arrive or the next wake-up call occurs.", 3)
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else
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biome_lib.dbg("Mapblock queue has run dry.", 3)
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biome_lib.dbg("Idling the queue until new blocks arrive.", 3)
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end
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biome_lib.queue_idle_flag = true
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end
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minetest.after(1, biome_lib.show_pending_block_count)
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end
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biome_lib.show_pending_block_count()
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end
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