340 lines
9.4 KiB
Lua
340 lines
9.4 KiB
Lua
-- Minetest 0.4 mod: bucket
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-- See README.md for licensing and other information.
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local napi = minetest.get_modpath("node_io")
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minetest.register_alias("bucket", "bucket:bucket_empty")
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minetest.register_alias("bucket_water", "bucket:bucket_water")
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minetest.register_alias("bucket_lava", "bucket:bucket_lava")
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minetest.register_craft({
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output = 'bucket:bucket_empty 1',
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recipe = {
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{'default:steel_ingot', '', 'default:steel_ingot'},
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{'', 'default:steel_ingot', ''},
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}
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})
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bucket = {}
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bucket.liquids = {}
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local function check_protection(pos, name, text)
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if minetest.is_protected(pos, name) then
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minetest.log("action", (name ~= "" and name or "A mod")
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.. " tried to " .. text
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.. " at protected position "
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.. minetest.pos_to_string(pos)
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.. " with a bucket")
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minetest.record_protection_violation(pos, name)
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return true
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end
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return false
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end
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-- Register a new liquid
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-- source = name of the source node
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-- flowing = name of the flowing node
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-- itemname = name of the new bucket item (or nil if liquid is not takeable)
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-- inventory_image = texture of the new bucket item (ignored if itemname == nil)
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-- name = text description of the bucket item
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-- groups = (optional) groups of the bucket item, for example {water_bucket = 1}
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-- force_renew = (optional) bool. Force the liquid source to renew if it has a
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-- source neighbour, even if defined as 'liquid_renewable = false'.
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-- Needed to avoid creating holes in sloping rivers.
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-- This function can be called from any mod (that depends on bucket).
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function bucket.register_liquid(source, flowing, itemname, inventory_image, name,
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groups, force_renew)
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bucket.liquids[source] = {
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source = source,
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flowing = flowing,
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itemname = itemname,
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force_renew = force_renew,
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}
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bucket.liquids[flowing] = bucket.liquids[source]
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if itemname ~= nil then
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-- Create an image using a color
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if inventory_image:match("^#") then
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inventory_image = "bucket.png^(bucket_mask.png^[multiply:".. inventory_image ..")"
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end
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minetest.register_craftitem(itemname, {
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description = name,
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inventory_image = inventory_image,
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stack_max = 1,
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liquids_pointable = true,
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groups = groups,
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on_place = function(itemstack, user, pointed_thing)
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-- Must be pointing to node
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if pointed_thing.type ~= "node" then
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return
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end
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local node = minetest.get_node_or_nil(pointed_thing.under)
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local ndef = node and minetest.registered_nodes[node.name]
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-- Call on_rightclick if the pointed node defines it
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if ndef and ndef.on_rightclick and
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not (user and user:is_player() and
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user:get_player_control().sneak) then
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return ndef.on_rightclick(
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pointed_thing.under,
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node, user,
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itemstack)
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end
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local lpos
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-- Check if pointing to a buildable node
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if ndef and ndef.buildable_to then
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-- buildable; replace the node
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lpos = pointed_thing.under
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else
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-- not buildable to; place the liquid above
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-- check if the node above can be replaced
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lpos = pointed_thing.above
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node = minetest.get_node_or_nil(lpos)
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local above_ndef = node and minetest.registered_nodes[node.name]
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if not above_ndef or not above_ndef.buildable_to then
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-- do not remove the bucket with the liquid
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return itemstack
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end
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end
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if check_protection(lpos, user
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and user:get_player_name()
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or "", "place "..source) then
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return
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end
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-- Fill any fluid buffers if present
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local place = true
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local ppos = pointed_thing.under
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local node = minetest.get_node(ppos)
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-- Node IO Support
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local usedef = ndef
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local defpref = "node_io_"
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local lookat = "N"
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if napi then
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usedef = node_io
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lookat = node_io.get_pointed_side(user, pointed_thing)
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defpref = ""
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end
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if usedef[defpref..'can_put_liquid'] and usedef[defpref..'can_put_liquid'](ppos, node, lookat) then
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if usedef[defpref..'room_for_liquid'](ppos, node, lookat, source, 1000) >= 1000 then
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usedef[defpref..'put_liquid'](ppos, node, lookat, user, source, 1000)
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if ndef.on_timer then
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minetest.get_node_timer(ppos):start(ndef.node_timer_seconds or 1.0)
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end
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place = false
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end
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end
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if place then
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minetest.set_node(lpos, {name = source})
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end
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return ItemStack("bucket:bucket_empty")
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end
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})
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end
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end
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function bucket.get_liquid_for_bucket(itemname)
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local found = nil
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for source, b in pairs(bucket.liquids) do
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if b.itemname and b.itemname == itemname then
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found = source
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break
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end
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end
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return found
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end
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minetest.register_craftitem("bucket:bucket_empty", {
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description = "Empty Bucket",
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inventory_image = "bucket.png",
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stack_max = 99,
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liquids_pointable = true,
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groups = {bucket_empty = 1},
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on_use = function(itemstack, user, pointed_thing)
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if pointed_thing.type == "object" then
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pointed_thing.ref:punch(user, 1.0, { full_punch_interval=1.0 }, nil)
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return user:get_wielded_item()
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elseif pointed_thing.type ~= "node" then
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-- do nothing if it's neither object nor node
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return
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end
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-- Check if pointing to a liquid source
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local node = minetest.get_node(pointed_thing.under)
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local liquiddef = bucket.liquids[node.name]
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local item_count = user:get_wielded_item():get_count()
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if liquiddef ~= nil
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and liquiddef.itemname ~= nil
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and node.name == liquiddef.source then
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if check_protection(pointed_thing.under,
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user:get_player_name(),
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"take ".. node.name) then
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return
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end
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-- default set to return filled bucket
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local giving_back = liquiddef.itemname
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-- check if holding more than 1 empty bucket
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if item_count > 1 then
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-- if space in inventory add filled bucked, otherwise drop as item
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local inv = user:get_inventory()
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if inv:room_for_item("main", {name=liquiddef.itemname}) then
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inv:add_item("main", liquiddef.itemname)
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else
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local pos = user:getpos()
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pos.y = math.floor(pos.y + 0.5)
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minetest.add_item(pos, liquiddef.itemname)
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end
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-- set to return empty buckets minus 1
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giving_back = "bucket:bucket_empty "..tostring(item_count-1)
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end
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-- force_renew requires a source neighbour
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local source_neighbor = false
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if liquiddef.force_renew then
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source_neighbor =
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minetest.find_node_near(pointed_thing.under, 1, liquiddef.source)
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end
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if not (source_neighbor and liquiddef.force_renew) then
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minetest.add_node(pointed_thing.under, {name = "air"})
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end
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return ItemStack(giving_back)
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else
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-- non-liquid nodes will have their on_punch triggered
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local node_def = minetest.registered_nodes[node.name]
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if node_def then
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node_def.on_punch(pointed_thing.under, node, user, pointed_thing)
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end
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return user:get_wielded_item()
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end
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end,
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on_place = function(itemstack, user, pointed_thing)
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-- Must be pointing to node
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if pointed_thing.type ~= "node" then
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return
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end
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local lpos = pointed_thing.under
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local node = minetest.get_node_or_nil(lpos)
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local ndef = node and minetest.registered_nodes[node.name]
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-- Call on_rightclick if the pointed node defines it
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if ndef and ndef.on_rightclick and
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not (user and user:is_player() and
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user:get_player_control().sneak) then
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return ndef.on_rightclick(
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lpos,
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node, user,
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itemstack)
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end
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if check_protection(lpos, user
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and user:get_player_name()
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or "", "take "..node.name) then
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return
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end
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itemstack = ItemStack("bucket:bucket_empty")
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-- Node IO Support
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local usedef = ndef
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local defpref = "node_io_"
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local lookat = "N"
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if napi then
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usedef = node_io
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lookat = node_io.get_pointed_side(user, pointed_thing)
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defpref = ""
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end
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-- Remove fluid from buffers if present
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if usedef[defpref..'can_take_liquid'] and usedef[defpref..'can_take_liquid'](lpos, node, lookat) then
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local bfc = usedef[defpref..'get_liquid_size'](lpos, node, lookat)
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local buffers = {}
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for i = 1, bfc do
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buffers[i] = usedef[defpref..'get_liquid_name'](lpos, node, lookat, i)
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end
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if #buffers > 0 then
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for id,fluid in pairs(buffers) do
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if fluid ~= "" then
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local took = usedef[defpref..'take_liquid'](lpos, node, lookat, user, fluid, 1000)
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if took.millibuckets == 1000 and took.name == fluid then
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if bucket.liquids[fluid] then
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itemstack = ItemStack(bucket.liquids[fluid].itemname)
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if ndef.on_timer then
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minetest.get_node_timer(lpos):start(ndef.node_timer_seconds or 1.0)
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end
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break
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end
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end
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end
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end
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end
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end
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return itemstack
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end
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})
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bucket.register_liquid(
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"default:water_source",
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"default:water_flowing",
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"bucket:bucket_water",
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"bucket_water.png",
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"Water Bucket",
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{water_bucket = 1}
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)
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-- River water source is 'liquid_renewable = false' to avoid horizontal spread
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-- of water sources in sloping rivers that can cause water to overflow
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-- riverbanks and cause floods.
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-- River water source is instead made renewable by the 'force renew' option
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-- used here.
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bucket.register_liquid(
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"default:river_water_source",
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"default:river_water_flowing",
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"bucket:bucket_river_water",
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"bucket_river_water.png",
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"River Water Bucket",
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{water_bucket = 1},
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true
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)
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bucket.register_liquid(
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"default:lava_source",
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"default:lava_flowing",
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"bucket:bucket_lava",
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"bucket_lava.png",
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"Lava Bucket"
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)
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minetest.register_craft({
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type = "fuel",
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recipe = "bucket:bucket_lava",
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burntime = 60,
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replacements = {{"bucket:bucket_lava", "bucket:bucket_empty"}},
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})
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