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