mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-06-02 12:53:00 +00:00
107 lines
3.3 KiB
Lua
107 lines
3.3 KiB
Lua
local wea_c = worldeditadditions_core
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local Vector3 = wea_c.Vector3
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--- Overlap command. Places a specified node on top of each column.
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-- @module worldeditadditions.layers
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function worldeditadditions.forest(pos1, pos2, density_multiplier, sapling_weights)
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pos1, pos2 = Vector3.sort(pos1, pos2)
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local weight_total = 0
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for _name,weight in pairs(sapling_weights) do
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weight_total = weight_total + weight
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end
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sapling_weights["air"] = math.ceil(weight_total * 100 * 1/density_multiplier)
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-- This command requires the bonemeal mod to be installed
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-- We check here too because other mods might call this function directly and bypass the chat command system
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if not minetest.get_modpath("bonemeal") then
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return false, "Bonemeal mod not loaded"
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end
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local overlay_stats = worldeditadditions.overlay(pos1, pos2, sapling_weights)
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-- Fetch the nodes in the specified area
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local manip, area = worldedit.manip_helpers.init(pos1, pos2)
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local data = manip:get_data()
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local id_air = minetest.get_content_id("air")
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local group_cache = {}
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local stats = { attempts = {}, failures = 0, placed = {} }
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for z = pos2.z, pos1.z, -1 do
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for x = pos2.x, pos1.x, -1 do
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for y = pos2.y, pos1.y, -1 do
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local i = area:index(x, y, z)
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local node_id = data[i]
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if not group_cache[node_id] then
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group_cache[node_id] = wea_c.is_sapling(node_id)
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end
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if group_cache[node_id] then
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local did_grow = false
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local new_id_at_pos
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local new_name_at_pos
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for attempt_number=1,100 do
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bonemeal:on_use(
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{ x = x, y = y, z = z },
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4,
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nil
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)
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new_name_at_pos = minetest.get_node({ z = z, y = y, x = x }).name
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new_id_at_pos = minetest.get_content_id(new_name_at_pos)
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if not group_cache[new_id_at_pos] then
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group_cache[new_id_at_pos] = wea_c.is_sapling(new_id_at_pos)
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end
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if not group_cache[new_id_at_pos] then
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did_grow = true
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-- Log the number of attempts it took to grow
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table.insert(stats.attempts, attempt_number)
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-- Update the running total of saplings that grew
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if not stats.placed[node_id] then
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stats.placed[node_id] = 0
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end
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stats.placed[node_id] = stats.placed[node_id] + 1
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-- print("incrementing id", node_id, "to", stats.placed[node_id])
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break
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end
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end
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if not did_grow then
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-- print("[//forest] Failed to grow sapling, detected node id", new_id_at_pos, "name", new_name_at_pos, "was originally", minetest.get_name_from_content_id(node_id))
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-- We can't set it to air here because then when we save back we would overwrite all the newly grown trees
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stats.failures = stats.failures + 1
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end
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end
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end
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end
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end
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-- Re-fetch the Voxel Manipulator to accountn for the new trees
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manip, area = worldedit.manip_helpers.init(pos1, pos2)
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data = manip:get_data()
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for z = pos2.z, pos1.z, -1 do
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for x = pos2.x, pos1.x, -1 do
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for y = pos2.y, pos1.y, -1 do
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local i = area:index(x, y, z)
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if not group_cache[data[i]] then
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group_cache[data[i]] = wea_c.is_sapling(data[i])
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end
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if group_cache[data[i]] then
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data[i] = id_air
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end
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end
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end
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end
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stats.successes = #stats.attempts
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stats.attempts_avg = wea_c.average(stats.attempts)
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-- Save the modified nodes back to disk & return
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worldedit.manip_helpers.finish(manip, data)
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return true, stats
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end
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