Change kelp to use ABMs to solve performance issues
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ancientmarinerdev
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e323ab6e88
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@ -76,7 +76,7 @@ kelp.MAX_AGE_QUEUE = 20
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-- kelp.ROLL_GROWTH_DENOMINATOR = 100 * 1200 * kelp.ROLL_GROWTH_PRECISION
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kelp.ROLL_GROWTH_PRECISION = 1
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kelp.ROLL_GROWTH_NUMERATOR = 216 * kelp.TICK
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kelp.ROLL_GROWTH_DENOMINATOR = 100 * 1200
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kelp.ROLL_GROWTH_DENOMINATOR = 1 -- 100 * 1200
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-- Sounds used to dig and place kelp.
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kelp.leaf_sounds = mcl_sounds.node_sound_leaves_defaults()
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@ -230,6 +230,17 @@ function kelp.next_param2(param2)
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return math.min(param2+16 - param2 % 16, 255);
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end
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local function store_age (pos, age)
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if pos then
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minetest.log("age: ".. tostring(age) .. ", pos: ".. mt_pos_to_string(pos))
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mt_get_meta(pos):set_int("mcl_ocean:kelp_age", age)
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end
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end
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local function retrieve_age (pos)
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local meta = mt_get_meta(pos)
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return meta:get_int("mcl_ocean:kelp_age")
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end
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-- Stores age from kelp.age_queue* into their respective meta
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function kelp.store_meta()
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@ -242,10 +253,11 @@ function kelp.store_meta()
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for i=1,#kelp.age_queue do
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local pos_hash = kelp.age_queue[i]
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local pos = kelp.age_queue_pos[pos_hash]
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local age = kelp.age_pool[pos_hash]
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-- queued hashes may no longer point to a valid pos, e.g. kelp is destroyed.
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if pos then
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mt_get_meta(pos):set_int("mcl_ocean:kelp_age", kelp.age_pool[pos_hash])
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end
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store_age(pos, age)
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end
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kelp.age_queue = {}
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kelp.age_queue_pos = {}
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@ -258,6 +270,7 @@ function kelp.store_age(age, pos, pos_hash)
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-- Optional params: pos_hash
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local pos_hash = pos_hash or mt_hash_node_position(pos)
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-- TODO really needed? Store on meta...
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kelp.age_pool[pos_hash] = age
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if not kelp.age_queue_pos[pos_hash] then
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table.insert(kelp.age_queue, pos_hash)
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@ -273,26 +286,28 @@ end
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function kelp.init_age(pos, age, pos_hash, meta)
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-- Watched params: pos
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-- Optional params: age, pos_hash, meta
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local pos_hash = pos_hash or mt_hash_node_position(pos)
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--local pos_hash = pos_hash or mt_hash_node_position(pos)
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local meta = meta or mt_get_meta(pos)
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local age = age
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local stored_age = retrieve_age(pos)
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minetest.log("age: " .. tostring(age))
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minetest.log("stored_age: " .. tostring(stored_age))
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if age then
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kelp.store_age(age, pos, pos_hash)
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elseif not meta:contains("mcl_ocean:kelp_age") then
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store_age(pos, age)
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elseif not stored_age then
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age = kelp.roll_init_age()
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kelp.store_age(age, pos, pos_hash)
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store_age(pos, age)
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else
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age = meta:get_int("mcl_ocean:kelp_age")
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if not kelp.age_pool[pos_hash] then
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kelp.age_pool[pos_hash] = age
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end
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age = stored_age
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end
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return age, pos_hash, meta
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end
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-- TODO remove
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-- Initialise kelp nodetimer.
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function kelp.init_timer(pos, pos_hash)
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-- Optional params: pos_hash
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@ -361,8 +376,9 @@ function kelp.next_grow(age, pos, node, pos_hash, pos_tip, node_tip, submerged,
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end
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kelp.next_height(pos, node, pos_tip, node_tip, submerged, downward_flowing)
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return kelp.store_age(age, pos, pos_hash), node, pos_hash, pos_tip, node_tip, submerged, downward_flowing
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--kelp.store_age(age, pos, pos_hash)
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store_age(pos, age)
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return true, pos_hash, node, pos_hash, pos_tip, node_tip, submerged, downward_flowing
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end
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@ -427,22 +443,29 @@ end
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function kelp.surface_on_timer(pos)
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--minetest.log("action", "Timer")
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local node = mt_get_node(pos)
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local pos_hash
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-- Update detahed kelps
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local dig_pos,_, height = kelp.find_unsubmerged(pos, node)
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if dig_pos then
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pos_hash = mt_hash_node_position(pos)
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mt_sound_play(mt_registered_nodes[node.name].sounds.dug, { gain = 0.5, pos = dig_pos }, true)
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kelp.detach_dig(dig_pos, pos, true, node, height)
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kelp.store_age(kelp.roll_init_age(), pos, pos_hash)
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local new_age = kelp.roll_init_age()
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store_age(pos, new_age)
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--kelp.store_age(new_age, pos, pos_hash)
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end
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-- Grow kelp on chance
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if kelp.roll_growth() then
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pos_hash = pos_hash or mt_hash_node_position(pos)
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local age = kelp.age_pool[pos_hash]
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--local age = kelp.age_pool[pos_hash]
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local age = retrieve_age(pos)
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if kelp.is_age_growable(age) then
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kelp.next_grow(age+1, pos, node, pos_hash)
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end
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@ -452,15 +475,13 @@ function kelp.surface_on_timer(pos)
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end
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function kelp.surface_on_construct(pos)
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local pos_hash = mt_hash_node_position(pos)
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kelp.init_age(pos, nil, pos_hash)
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kelp.init_timer(pos, pos_hash)
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kelp.init_age(pos, nil)
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end
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function kelp.surface_on_destruct(pos)
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local node = mt_get_node(pos)
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local pos_hash = mt_hash_node_position(pos)
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--local pos_hash = mt_hash_node_position(pos)
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-- on_falling callback. Activated by pistons for falling nodes too.
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if kelp.is_falling(pos, node) then
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@ -468,13 +489,14 @@ function kelp.surface_on_destruct(pos)
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end
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-- Removes position from queue
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kelp.age_queue_pos[pos_hash] = nil
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--kelp.age_queue_pos[pos_hash] = nil
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end
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function kelp.surface_on_mvps_move(pos, node, oldpos, nodemeta)
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-- Pistons moving falling nodes will have already activated on_falling callback.
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minetest.log("kelp.surface_on_mvps_move: " .. mt_pos_to_string(pos))
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kelp.detach_dig(pos, pos, mt_get_item_group(node.name, "falling_node") ~= 1, node)
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end
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@ -576,22 +598,24 @@ function kelp.kelp_on_place(itemstack, placer, pointed_thing)
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end
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-- Initialize age and timer when it's planted on a new surface.
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local pos_hash = mt_hash_node_position(pos_under)
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--local pos_hash = mt_hash_node_position(pos_under)
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if new_surface then
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kelp.init_age(pos_under, nil, pos_hash)
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kelp.init_timer(pos_under, pos_hash)
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kelp.init_age(pos_under, nil)
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--kelp.init_timer(pos_under, pos_hash)
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else
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kelp.store_age(kelp.roll_init_age(), pos_under, pos_hash)
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-- TODO needed?
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store_age(pos_under, kelp.roll_init_age())
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--kelp.store_age(kelp.roll_init_age(), pos_under, pos_hash)
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end
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return itemstack
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end
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-- At load
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function kelp.lbm_register_nodetimer(pos, node)
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local pos_hash = mt_hash_node_position(pos)
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kelp.init_age(pos, nil, pos_hash)
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kelp.init_timer(pos, pos_hash)
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--kelp.init_timer(pos, pos_hash)
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end
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@ -664,7 +688,7 @@ kelp.surface_deftemplate = {
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on_destruct = kelp.surface_on_destruct,
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on_dig = kelp.surface_on_dig,
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after_dig_node = kelp.surface_after_dig_node,
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on_timer = kelp.surface_on_timer,
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--on_timer = kelp.surface_on_timer,
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mesecon = { on_mvps_move = kelp.surface_on_mvps_move, },
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drop = "", -- drops are handled in on_dig
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--_mcl_falling_node_alternative = is_falling and nodename or nil,
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@ -812,34 +836,43 @@ minetest.register_craft({
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})
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-- Global registration ------------------------------------------------------------------------
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--[[
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minetest.register_lbm({
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label = "Kelp initialise",
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name = "mcl_ocean:kelp_init",
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nodenames = { "group:kelp" },
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run_at_every_load = true, -- so old kelps are also initialised
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action = kelp.lbm_register_nodetimer,
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})
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})--]]
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minetest.register_globalstep(kelp.globalstep)
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minetest.register_on_shutdown(kelp.on_shutdown)
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--minetest.register_globalstep(kelp.globalstep)
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--minetest.register_on_shutdown(kelp.on_shutdown)
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-- NOTE: Old ABM implementation.
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-- minetest.register_abm({
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-- label = "Kelp drops",
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-- nodenames = { "group:kelp" },
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-- interval = 1.0,
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-- chance = 1,
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-- catch_up = false,
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-- action = surface_unsubmerged_abm,
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-- })
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--
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-- minetest.register_abm({
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-- label = "Kelp growth",
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-- nodenames = { "group:kelp" },
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-- interval = 45,
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-- chance = 12,
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-- catch_up = false,
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-- action = grow_abm,
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-- })
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--[[
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minetest.register_abm({
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label = "Kelp drops",
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nodenames = { "group:kelp" },
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interval = 1.0,
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chance = 1,
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catch_up = false,
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action = surface_unsubmerged_abm,
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})
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--]]
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-- 50% growth over a minute https://minecraft.fandom.com/wiki/Tutorials/Kelp_farming
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-- 14% chance every random tick
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-- On average, blocks are updated every 68.27 seconds (1365.33 game ticks)
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-- 1 in 7 every 68
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-- 1 in 28 every 17
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-- 1 in 21 every 22
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-- https://minecraft.fandom.com/wiki/Tick#Random_tick
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minetest.register_abm({
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label = "Kelp growth",
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nodenames = { "group:kelp" },
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interval = 17, --17 target was 45
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chance = 28, -- 3 target was 12
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catch_up = false,
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action = kelp.surface_on_timer,
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})
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