forked from VoxeLibre/VoxeLibre
Refactor leaf decay ABM.
* The leaf decay ABM no longer scans all leaves nodes. Now only "orphaned" leaves are decayed. These nodes are placed by callbacks in tree trunk nodes upon their destruction. * This commit also removes the tree trunk node caching system and an abm throttling mechanism and its associated globalstep function.
This commit is contained in:
kabou
Gitea
parent
a4ef367708
commit
adcf03e0c6
|
|
@ -1367,108 +1367,46 @@ function mcl_core.supports_vines(nodename)
|
|||
end
|
||||
|
||||
-- Leaf Decay
|
||||
|
||||
-- To enable leaf decay for a node, add it to the "leafdecay" group.
|
||||
--
|
||||
-- The rating of the group determines how far from a node in the group "tree"
|
||||
-- the node can be without decaying.
|
||||
-- Whenever a tree trunk node is removed, all `group:leaves` nodes in a radius
|
||||
-- of 6 blocks are checked from the trunk node's `after_destruct` handler.
|
||||
-- Any such nodes within that radius that has no trunk node present within a
|
||||
-- distance of 6 blocks is replaced with a `group:orphan_leaves` node.
|
||||
--
|
||||
-- If param2 of the node is ~= 0, the node will always be preserved. Thus, if
|
||||
-- the player places a node of that kind, you will want to set param2=1 or so.
|
||||
--
|
||||
|
||||
mcl_core.leafdecay_trunk_cache = {}
|
||||
mcl_core.leafdecay_enable_cache = true
|
||||
-- Spread the load of finding trunks
|
||||
mcl_core.leafdecay_trunk_find_allow_accumulator = 0
|
||||
|
||||
minetest.register_globalstep(function(dtime)
|
||||
--local finds_per_second = 5000
|
||||
mcl_core.leafdecay_trunk_find_allow_accumulator = math.floor(dtime * 5000)
|
||||
end)
|
||||
|
||||
-- The `group:orphan_leaves` nodes are gradually decayed in this ABM.
|
||||
minetest.register_abm({
|
||||
label = "Leaf decay",
|
||||
nodenames = {"group:leafdecay"},
|
||||
neighbors = {"air", "group:liquid"},
|
||||
-- A low interval and a high inverse chance spreads the load
|
||||
interval = 2,
|
||||
chance = 5,
|
||||
nodenames = {"group:orphan_leaves"},
|
||||
interval = 5,
|
||||
chance = 10,
|
||||
action = function(pos, node)
|
||||
-- Spawn item entities for any of the leaf's drops
|
||||
local itemstacks = minetest.get_node_drops(node.name)
|
||||
for _, itemname in pairs(itemstacks) do
|
||||
local p_drop = vector.offset(pos, math.random() - 0.5, math.random() - 0.5, math.random() - 0.5)
|
||||
minetest.add_item(p_drop, itemname)
|
||||
end
|
||||
-- Remove the decayed node
|
||||
minetest.remove_node(pos)
|
||||
leafdecay_particles(pos, node)
|
||||
minetest.check_for_falling(pos)
|
||||
|
||||
action = function(p0, node, _, _)
|
||||
local do_preserve = false
|
||||
local d = minetest.registered_nodes[node.name].groups.leafdecay
|
||||
if not d or d == 0 then
|
||||
return
|
||||
end
|
||||
local n0 = minetest.get_node(p0)
|
||||
if n0.param2 ~= 0 then
|
||||
-- Prevent leafdecay for player-placed leaves.
|
||||
-- param2 is set to 1 after it was placed by the player
|
||||
return
|
||||
end
|
||||
local p0_hash = nil
|
||||
if mcl_core.leafdecay_enable_cache then
|
||||
p0_hash = minetest.hash_node_position(p0)
|
||||
local trunkp = mcl_core.leafdecay_trunk_cache[p0_hash]
|
||||
if trunkp then
|
||||
local n = minetest.get_node(trunkp)
|
||||
local reg = minetest.registered_nodes[n.name]
|
||||
-- Assume ignore is a trunk, to make the thing work at the border of the active area
|
||||
if n.name == "ignore" or (reg and reg.groups.tree and reg.groups.tree ~= 0) then
|
||||
return
|
||||
end
|
||||
-- Cache is invalid
|
||||
table.remove(mcl_core.leafdecay_trunk_cache, p0_hash)
|
||||
end
|
||||
end
|
||||
if mcl_core.leafdecay_trunk_find_allow_accumulator <= 0 then
|
||||
return
|
||||
end
|
||||
mcl_core.leafdecay_trunk_find_allow_accumulator =
|
||||
mcl_core.leafdecay_trunk_find_allow_accumulator - 1
|
||||
-- Assume ignore is a trunk, to make the thing work at the border of the active area
|
||||
local p1 = minetest.find_node_near(p0, d, {"ignore", "group:tree"})
|
||||
if p1 then
|
||||
do_preserve = true
|
||||
if mcl_core.leafdecay_enable_cache then
|
||||
-- Cache the trunk
|
||||
mcl_core.leafdecay_trunk_cache[p0_hash] = p1
|
||||
end
|
||||
end
|
||||
if not do_preserve then
|
||||
-- Drop stuff other than the node itself
|
||||
local itemstacks = minetest.get_node_drops(n0.name)
|
||||
for _, itemname in pairs(itemstacks) do
|
||||
local p_drop = {
|
||||
x = p0.x - 0.5 + math.random(),
|
||||
y = p0.y - 0.5 + math.random(),
|
||||
z = p0.z - 0.5 + math.random(),
|
||||
}
|
||||
minetest.add_item(p_drop, itemname)
|
||||
end
|
||||
-- Remove node
|
||||
minetest.remove_node(p0)
|
||||
leafdecay_particles(p0, n0)
|
||||
minetest.check_for_falling(p0)
|
||||
|
||||
-- Kill depending vines immediately to skip the vines decay delay
|
||||
local surround = {
|
||||
{ x = 0, y = 0, z = -1 },
|
||||
{ x = 0, y = 0, z = 1 },
|
||||
{ x = -1, y = 0, z = 0 },
|
||||
{ x = 1, y = 0, z = 0 },
|
||||
{ x = 0, y = -1, z = -1 },
|
||||
}
|
||||
for s=1, #surround do
|
||||
local spos = vector.add(p0, surround[s])
|
||||
local maybe_vine = minetest.get_node(spos)
|
||||
--local surround_inverse = vector.multiply(surround[s], -1)
|
||||
if maybe_vine.name == "mcl_core:vine" and (not mcl_core.check_vines_supported(spos, maybe_vine)) then
|
||||
minetest.remove_node(spos)
|
||||
vinedecay_particles(spos, maybe_vine)
|
||||
minetest.check_for_falling(spos)
|
||||
end
|
||||
-- Kill depending vines immediately to skip the vines decay delay
|
||||
local surround = {
|
||||
{ x = 0, y = 0, z = -1 },
|
||||
{ x = 0, y = 0, z = 1 },
|
||||
{ x = -1, y = 0, z = 0 },
|
||||
{ x = 1, y = 0, z = 0 },
|
||||
{ x = 0, y = -1, z = -1 },
|
||||
}
|
||||
for s=1, #surround do
|
||||
local spos = vector.add(pos, surround[s])
|
||||
local maybe_vine = minetest.get_node(spos)
|
||||
--local surround_inverse = vector.multiply(surround[s], -1)
|
||||
if maybe_vine.name == "mcl_core:vine" and (not mcl_core.check_vines_supported(spos, maybe_vine)) then
|
||||
minetest.remove_node(spos)
|
||||
vinedecay_particles(spos, maybe_vine)
|
||||
minetest.check_for_falling(spos)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in New Issue