Handle item drops more carefully

Do not ignore itemstrings which contain more than just the name; fixes missing clay drops
Support dropped items with toolwear and/or metadata
This commit is contained in:
HybridDog 2019-07-01 15:37:04 +02:00
parent 871be4048e
commit 682a345495

@ -330,17 +330,59 @@ end
if legacy_setting_getbool("item_drop.enable_item_drop", "enable_item_drop", true)
and not minetest.settings:get_bool("creative_mode") then
-- Workaround to test if an item metadata (ItemStackMetaRef) is empty
local function itemmeta_is_empty(meta)
local t = meta:to_table()
for k, v in pairs(t) do
if k ~= "fields" then
return false
end
assert(type(v) == "table")
if next(v) ~= nil then
return false
end
end
return true
end
-- Tests if the item has special information such as metadata
local function can_split_item(item)
return item:get_wear() == 0 and itemmeta_is_empty(item:get_meta())
end
local function spawn_items(pos, items_to_spawn)
for i = 1,#items_to_spawn do
local obj = minetest.add_item(pos, items_to_spawn[i])
if not obj then
error("Couldn't spawn item " .. name .. ", drops: "
.. dump(drops))
end
local vel = obj:get_velocity()
local x = math.random(-5, 4)
if x >= 0 then
x = x+1
end
vel.x = 1 / x
local z = math.random(-5, 4)
if z >= 0 then
z = z+1
end
vel.z = 1 / z
obj:set_velocity(vel)
end
end
function minetest.handle_node_drops(pos, drops)
for i = 1,#drops do
local item = drops[i]
local count, name
if type(item) == "string" then
count = 1
name = item
else
count = item:get_count()
name = item:get_name()
-- The string is not necessarily only the item name,
-- so always convert it to ItemStack
item = ItemStack(item)
end
local count = item:get_count()
local name = item:get_name()
-- Sometimes nothing should be dropped
if name == ""
@ -348,24 +390,16 @@ and not minetest.settings:get_bool("creative_mode") then
count = 0
end
for _ = 1,count do
local obj = minetest.add_item(pos, name)
if not obj then
error("Couldn't spawn item " .. name .. ", drops: " .. dump(drops))
if count > 0 then
-- Split items if possible
local items_to_spawn = {item}
if can_split_item(item) then
for i = 1,count do
items_to_spawn[i] = name
end
end
local vel = obj:get_velocity()
local x = math.random(-5, 4)
if x >= 0 then
x = x+1
end
vel.x = 1 / x
local z = math.random(-5, 4)
if z >= 0 then
z = z+1
end
vel.z = 1 / z
obj:set_velocity(vel)
spawn_items(pos, items_to_spawn)
end
end
end