Ability to stack empty buckets...
Posted: Sat Feb 14, 2015 21:00It can be very handy being able to stack empty buckets and being able to fill one of the stack without losing them all, here's my code to do just that: (added to github as feature issue)
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-- Minetest 0.4 mod: bucket
-- See README.txt for licensing and other information.
minetest.register_alias("bucket", "bucket:bucket_empty")
minetest.register_alias("bucket_water", "bucket:bucket_water")
minetest.register_alias("bucket_lava", "bucket:bucket_lava")
minetest.register_craft({
output = 'bucket:bucket_empty 1',
recipe = {
{'default:steel_ingot', '', 'default:steel_ingot'},
{'', 'default:steel_ingot', ''},
}
})
bucket = {}
bucket.liquids = {}
local function check_protection(pos, name, text)
if minetest.is_protected(pos, name) then
minetest.log("action", (name ~= "" and name or "A mod")
.. " tried to " .. text
.. " at protected position "
.. minetest.pos_to_string(pos)
.. " with a bucket")
minetest.record_protection_violation(pos, name)
return true
end
return false
end
-- Register a new liquid
-- source = name of the source node
-- flowing = name of the flowing node
-- itemname = name of the new bucket item (or nil if liquid is not takeable)
-- inventory_image = texture of the new bucket item (ignored if itemname == nil)
-- This function can be called from any mod (that depends on bucket).
function bucket.register_liquid(source, flowing, itemname, inventory_image, name)
bucket.liquids[source] = {
source = source,
flowing = flowing,
itemname = itemname,
}
bucket.liquids[flowing] = bucket.liquids[source]
if itemname ~= nil then
minetest.register_craftitem(itemname, {
description = name,
inventory_image = inventory_image,
stack_max = 1,
liquids_pointable = true,
on_place = function(itemstack, user, pointed_thing)
-- Must be pointing to node
if pointed_thing.type ~= "node" then
return
end
local node = minetest.get_node_or_nil(pointed_thing.under)
local ndef
if node then
ndef = minetest.registered_nodes[node.name]
end
-- Call on_rightclick if the pointed node defines it
if ndef and ndef.on_rightclick and
user and not user:get_player_control().sneak then
return ndef.on_rightclick(
pointed_thing.under,
node, user,
itemstack) or itemstack
end
local place_liquid = function(pos, node, source, flowing)
if check_protection(pos,
user and user:get_player_name() or "",
"place "..source) then
return
end
minetest.add_node(pos, {name=source})
end
-- Check if pointing to a buildable node
if ndef and ndef.buildable_to then
-- buildable; replace the node
place_liquid(pointed_thing.under, node,
source, flowing)
else
-- not buildable to; place the liquid above
-- check if the node above can be replaced
local node = minetest.get_node_or_nil(pointed_thing.above)
if node and minetest.registered_nodes[node.name].buildable_to then
place_liquid(pointed_thing.above,
node, source,
flowing)
else
-- do not remove the bucket with the liquid
return
end
end
return {name="bucket:bucket_empty"}
end
})
end
end
minetest.register_craftitem("bucket:bucket_empty", {
description = "Empty Bucket",
inventory_image = "bucket.png",
stack_max = 99,
liquids_pointable = true,
on_use = function(itemstack, user, pointed_thing)
-- Must be pointing to node
if pointed_thing.type ~= "node" then
return
end
-- Check if pointing to a liquid source
local node = minetest.get_node(pointed_thing.under)
local liquiddef = bucket.liquids[node.name]
local item_count = user:get_wielded_item():get_count()
if liquiddef ~= nil
and liquiddef.itemname ~= nil
and node.name == liquiddef.source then
if check_protection(pointed_thing.under,
user:get_player_name(),
"take ".. node.name) then
return
end
-- default set to return filled bucket
local giving_back = liquiddef.itemname
-- check if holding more than 1 empty bucket
if item_count > 1 then
-- if space in inventory add filled bucked, otherwise drop as item
local inv = user:get_inventory()
if inv:room_for_item("main", {name=liquiddef.itemname}) then
inv:add_item("main", liquiddef.itemname)
else
local pos = user:getpos()
pos.y = math.floor(pos.y + 0.5)
core.add_item(pos, liquiddef.itemname)
end
-- set to return empty buckets minus 1
giving_back = "bucket:bucket_empty "..tostring(item_count-1)
end
minetest.add_node(pointed_thing.under, {name="air"})
return ItemStack(giving_back)
end
end,
})
bucket.register_liquid(
"default:water_source",
"default:water_flowing",
"bucket:bucket_water",
"bucket_water.png",
"Water Bucket"
)
bucket.register_liquid(
"default:lava_source",
"default:lava_flowing",
"bucket:bucket_lava",
"bucket_lava.png",
"Lava Bucket"
)
minetest.register_craft({
type = "fuel",
recipe = "bucket:bucket_lava",
burntime = 60,
replacements = {{"bucket:bucket_lava", "bucket:bucket_empty"}},
})