105 lines
2.5 KiB
Lua
105 lines
2.5 KiB
Lua
local modname = minetest.get_current_modname()
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local api = blockgame.tree
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local vec = blockgame.vector
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-- NODE NAMES
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local log = modname .. ":log"
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local log_alive = modname .. ":log_alive"
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local leaves = modname .. ":leaves"
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local leaves_alive = modname .. ":leaves_alive"
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local root = modname .. ":root"
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-- END OF NODE NAMES
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-- LOCALS CACHE
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local all_sides_except_up = blockgame.shallow_copy_table(blockgame.vector.dirs)
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all_sides_except_up.up = nil
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-- END OF LOCALS CACHE
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local function extend_leaves_from (pos)
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local side = vec.random_side()
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blockgame.attempt_place(pos + side, {name = leaves_alive})
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end
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local function spread_roots_from (source)
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local root_pos = blockgame.random_walk({
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pos = source,
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check = function (pos)
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local name = minetest.get_node(pos).name
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if name == log_alive then return true end
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if name == root then return true end
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return false
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end,
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neighborhood = all_sides_except_up,
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})
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if not root_pos then return false end
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local root_node = minetest.get_node(root_pos)
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if minetest.get_node(root_pos + blockgame.vector.dirs.up).name == log_alive then
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minetest.set_node(root_pos, {name = root})
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return true
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end
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local side = blockgame.random_element(all_sides_except_up)
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local target_pos = root_pos + side
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if blockgame.chance(2) then target_pos = vec.get_below(root_pos) end
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if minetest.get_item_group(minetest.get_node(target_pos), "dirty") then
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return minetest.set_node(target_pos, {name = root})
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end
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return false
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end
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blockgame.register_abm({
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label = "sapling grow",
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nodenames = {"tree:sapling"},
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neighbors = {"group:dirty", log_alive},
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interval = 15,
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chance = 4,
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catch_up = true,
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action = function (pos, node, active_object_count, active_object_count_wider)
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local below = vec.get_below(pos)
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if blockgame.chance(4) then
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local root_source = api.find_bottom_log(pos, 8)
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if root_source ~= nil then
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spread_roots_from(root_source + blockgame.vector.dirs.down)
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end
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end
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if blockgame.chance(2) then
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extend_leaves_from(pos)
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end
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if blockgame.chance(2) then
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extend_leaves_from(pos)
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end
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if blockgame.chance(2) then
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local side = vec.random_side()
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local target = pos + side
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blockgame.attempt_place(target, {name = log_alive})
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if blockgame.chance(2) then
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extend_leaves_from(target)
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end
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end
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if blockgame.chance(4) then
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minetest.set_node(pos, {name = log_alive})
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if minetest.get_node(below).name == log_alive and blockgame.chance(4) then return end
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blockgame.attempt_place(pos + vector.new(0, 1, 0), {name = modname .. ":sapling"})
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end
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end,
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})
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