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Boost performance of chorus plant digging

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ZedekThePD 2019-12-09 20:44:55 +01:00 committed by Wuzzy
parent 5868790b4f
commit b71cf5e9c2
1 changed files with 35 additions and 14 deletions
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49
mods/ITEMS/mcl_end/chorus_plant.lua
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@ -24,9 +24,21 @@ local function round(num, idp)
return math.floor(num * mult + 0.5) / mult
end
-- This is a list of nodes that SHOULD NOT call their detach function
local no_detach = {}
-- This detaches all chorus plants that are/were attached
-- at start_pos.
mcl_end.detach_chorus_plant = function(start_pos, digger)
-- This node should not call a detach function, do NOTHING
local hash = minetest.hash_node_position(start_pos)
if no_detach[hash] ~= nil then
return
end
-- This node SHOULD be detached, make sure no others are
no_detach = {}
local neighbors = {
{ x=0, y=1, z=0 },
{ x=0, y=0, z=1 },
@ -52,33 +64,42 @@ mcl_end.detach_chorus_plant = function(start_pos, digger)
local break_tree = true
while #check_posses > 0 do
local pos = check_posses[1]
local node = minetest.get_node(pos)
touched_nodes_hashes[minetest.hash_node_position(pos)] = true
if node.name == "mcl_end:end_stone" then
-- End stone found, the algorithm ends here (haha!)
-- without destroying any nodes, because chorus plants
-- attach to end stone.
break_tree = false
break
elseif minetest.get_item_group(node.name, "chorus_plant") == 1 then
table.insert(chorus_nodes, pos)
for i=1, #neighbors do
local newpos = vector.add(pos, neighbors[i])
if not touched_nodes_hashes[minetest.hash_node_position(newpos)] then
table.insert(check_posses, vector.add(pos, neighbors[i]))
-- Don't just count neighbors as being touched, count THIS NODE as well
-- This will prevent it from getting stuck in an endless loop
if not touched_nodes_hashes[minetest.hash_node_position(pos)] then
local node = minetest.get_node(pos)
touched_nodes_hashes[minetest.hash_node_position(pos)] = true
if node.name == "mcl_end:end_stone" then
-- End stone found, the algorithm ends here (haha!)
-- without destroying any nodes, because chorus plants
-- attach to end stone.
break_tree = false
break
elseif minetest.get_item_group(node.name, "chorus_plant") == 1 then
table.insert(chorus_nodes, pos)
for i=1, #neighbors do
local newpos = vector.add(pos, neighbors[i])
if not touched_nodes_hashes[minetest.hash_node_position(newpos)] then
table.insert(check_posses, vector.add(pos, neighbors[i]))
end
end
end
end
table.remove(check_posses, 1)
end
if break_tree then
-- If we traversed the entire chorus plant and it was not attached to end stone:
-- Drop ALL the chorus nodes we found.
for c=1, #chorus_nodes do
no_detach[ minetest.hash_node_position(chorus_nodes[c]) ] = true
minetest.node_dig(chorus_nodes[c], { name = "mcl_end:chorus_plant" }, digger)
end
end
end
no_detach = {}
end
mcl_end.check_detach_chorus_plant = function(pos, oldnode, oldmetadata, digger)