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Implement //clearcut to delete trees, plants from generated terrain

closes #165
This commit is contained in:
sfan5 2020-04-07 03:05:30 +02:00
parent 37de177f72
commit 0f5dcc790d
2 changed files with 87 additions and 0 deletions

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@ -341,6 +341,14 @@ Removes any fluid node within the current WorldEdit region.
//drain
### `//clearcut`
Removes any plant, tree or foilage-like nodes in the selected region.
The idea is to remove anything that isn't part of the terrain, leaving a "natural" empty space ready for building.
//clearcut
### `//hide`
Hide all nodes in the current WorldEdit region non-destructively.

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@ -1180,6 +1180,85 @@ worldedit.register_command("drain", {
end,
})
local clearcut_cache
local function clearcut(pos1, pos2)
-- decide which nodes we consider plants
if clearcut_cache == nil then
clearcut_cache = {}
for name, def in pairs(minetest.registered_nodes) do
local groups = def.groups or {}
if (
-- the groups say so
groups.flower or groups.grass or groups.flora or groups.plant or
groups.leaves or groups.tree or groups.leafdecay or groups.sapling or
-- drawtype heuristic
(def.is_ground_content and def.buildable_to and
(def.sunlight_propagates or not def.walkable)
and def.drawtype == "plantlike") or
-- if it's flammable, it probably needs to go too
(def.is_ground_content and not def.walkable and groups.flammable)
) then
clearcut_cache[name] = true
end
end
end
local plants = clearcut_cache
local count = 0
local prev, any
for x = pos1.x, pos2.x do
for z = pos1.z, pos2.z do
prev = false
any = false
-- first pass: remove floating nodes that would be left over
for y = pos1.y, pos2.y do
local n = minetest.get_node({x=x, y=y, z=z}).name
if plants[n] then
prev = true
any = true
elseif prev then
local def = minetest.registered_nodes[n] or {}
local groups = def.groups or {}
if groups.attached_node or (def.buildable_to and groups.falling_node) then
minetest.remove_node({x=x, y=y, z=z})
count = count + 1
else
prev = false
end
end
end
-- second pass: remove plants, top-to-bottom to avoid item drops
if any then
for y = pos2.y, pos1.y, -1 do
local n = minetest.get_node({x=x, y=y, z=z}).name
if plants[n] then
minetest.remove_node({x=x, y=y, z=z})
count = count + 1
end
end
end
end
end
return count
end
worldedit.register_command("clearcut", {
params = "",
description = "Remove any plant, tree or foilage-like nodes in the selected region",
privs = {worldedit=true},
require_pos = 2,
nodes_needed = check_region,
func = function(name)
local pos1, pos2 = worldedit.sort_pos(worldedit.pos1[name], worldedit.pos2[name])
local count = clearcut(pos1, pos2)
worldedit.player_notify(name, count .. " nodes removed")
end,
})
worldedit.register_command("hide", {
params = "",
description = "Hide all nodes in the current WorldEdit region non-destructively",