46 lines
1.5 KiB
Lua
46 lines
1.5 KiB
Lua
local modname = minetest.get_current_modname()
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-- NODE NAMES
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local log_alive = modname .. ":log_alive"
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local leaves = modname .. ":leaves"
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local leaves_growing = modname .. ":leaves_growing"
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local leaves_alive = modname .. ":leaves_alive"
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local max_grow_distance = 2
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local leaves_grow_cost = 250
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blockgame.register_increasing_abm({
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id = modname .. ":grow_leaves",
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label = "grow leaves",
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nodenames = {leaves_growing},
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neighbors = {log_alive, leaves_growing, leaves_alive},
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interval = 15,
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chance = 8,
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rate = function (pos, node, data)
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-- TODO: account for nearby nodes? e.g. grow slower if there are more leaves nearby.
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return data.value + math.random(1, 99)
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end,
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check = function (pos, node, data)
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return data.value >= leaves_grow_cost
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end,
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action = function (pos, node, data)
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-- TODO: give leaves energy over time, that they spend when creating new leaves.
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-- this requires the API to add support for increasing ABM `action`:s to modify `data`.
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local meta = minetest.get_meta(pos)
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local distance = meta:get_int("leaf_distance") or 1
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if distance >= max_grow_distance then return end
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local sides = blockgame.vector.get_sides_of(pos)
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for _, target in pairs(sides) do
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if blockgame.chance(2) then
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blockgame.attempt_place(target, {name = leaves_growing})
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-- TODO: find lowest possible leaf distance by checking all 4 sides?
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minetest.get_meta(target):set_int("leaf_distance", distance + 1)
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end
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end
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minetest.set_node(pos, {name = leaves_alive})
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end,
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})
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