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-- helper functions
local function process_blossom_queue_item()
local pos = nature.blossomqueue[1][1]
local node = nature.blossomqueue[1][2]
local replace = nature.blossomqueue[1][3]
if (nature.blossomqueue[1][3] == nature.blossom_node and not nature:is_near_water(pos)) then
table.remove(nature.blossomqueue, 1) -- don't grow if it's not near water, pop from queue.
return
end
nature:grow_node(pos, replace) -- now actually grow it.
table.remove(nature.blossomqueue, 1)
end
minetest.register_globalstep(function(dtime)
nature.dtime = dtime
if #nature.blossomqueue > 0 and dtime < 0.2 then
local i = 1
if dtime < 0.1 then
i = i + 4
end
if dtime < 0.05 then
i = i + 10
end
while #nature.blossomqueue > 0 and i > 0 do
process_blossom_queue_item()
i = i - 1
end
end
end)
function nature.enqueue_node(pos, node, replace)
local idx = #nature.blossomqueue
if idx < nature.blossomqueue_max then
local enqueue_prob = 0
if idx < nature.blossomqueue_max * 0.8 then
enqueue_prob = 1
else
-- Reduce queue growth as it gets closer to its max.
enqueue_prob = 1 - (idx - nature.blossomqueue_max * 0.8) / (nature.blossomqueue_max * 0.2)
end
if enqueue_prob == 1 or math.random(100) <= 100 * enqueue_prob then
nature.blossomqueue[idx+1] = {}
nature.blossomqueue[idx+1][1] = pos
nature.blossomqueue[idx+1][2] = node
nature.blossomqueue[idx+1][3] = replace
end
end
end
local function set_young_node(pos)
local meta = minetest.get_meta(pos)
meta:set_int(nature.meta_blossom_time, minetest.get_gametime())
end
local function is_not_young(pos)
local meta = minetest.get_meta(pos)
local blossom_time = meta:get_int(nature.meta_blossom_time)
return not (blossom_time and minetest.get_gametime() - blossom_time < nature.blossom_duration)
end
function nature:grow_node(pos, nodename)
if pos ~= nil then
local light_enough = (minetest.get_node_light(pos, nil) or 0)
>= nature.minimum_growth_light
if is_not_young(pos) and light_enough then
minetest.swap_node(pos, { name = nodename })
set_young_node(pos)
minetest.log("info", nodename .. " has grown at " .. pos.x .. ","
.. pos.y .. "," .. pos.z)
end
end
end
function nature:is_near_water(pos)
return nature.distance_from_water == -1 or minetest.find_node_near(pos, nature.distance_from_water,
{ "default:water_source" }) ~= nil
end
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