From 6a76c226e10e92c3e3339096f07f8ab065e2098b Mon Sep 17 00:00:00 2001
From: Kahrl <kahrl@gmx.net>
Date: Thu, 12 Jan 2012 06:10:39 +0100
Subject: The huge item definition and item namespace unification patch
 (itemdef), see http://c55.me/minetest/wiki/doku.php?id=changes:itemdef

---
 data/mods/bucket/init.lua | 139 +++++++++++++++++++++++++---------------------
 1 file changed, 77 insertions(+), 62 deletions(-)

(limited to 'data/mods/bucket/init.lua')

diff --git a/data/mods/bucket/init.lua b/data/mods/bucket/init.lua
index 639a614d4..8ed9da522 100644
--- a/data/mods/bucket/init.lua
+++ b/data/mods/bucket/init.lua
@@ -1,80 +1,95 @@
 -- bucket (Minetest 0.4 mod)
 -- A bucket, which can pick up water and lava
 
-minetest.alias_craftitem("bucket", "bucket:bucket_empty")
-minetest.alias_craftitem("bucket_water", "bucket:bucket_water")
-minetest.alias_craftitem("bucket_lava", "bucket:bucket_lava")
+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 = 'craft "bucket:bucket_empty" 1',
+	output = 'bucket:bucket_empty 1',
 	recipe = {
-		{'craft "steel_ingot"', '', 'craft "steel_ingot"'},
-		{'', 'craft "steel_ingot"', ''},
+		{'default:steel_ingot', '', 'default:steel_ingot'},
+		{'', 'default:steel_ingot', ''},
 	}
 })
 
-minetest.register_craftitem("bucket:bucket_empty", {
-	image = "bucket.png",
-	stack_max = 1,
-	liquids_pointable = true,
-	on_place_on_ground = minetest.craftitem_place_item,
-	on_use = function(item, player, pointed_thing)
-		if pointed_thing.type == "node" then
-			n = minetest.env:get_node(pointed_thing.under)
-			if n.name == "default:water_source" then
-				minetest.env:add_node(pointed_thing.under, {name="air"})
-				player:add_to_inventory_later('craft "bucket:bucket_water" 1')
-				return true
-			elseif n.name == "default:lava_source" then
-				minetest.env:add_node(pointed_thing.under, {name="air"})
-				player:add_to_inventory_later('craft "bucket:bucket_lava" 1')
-				return true
+bucket = {}
+bucket.liquids = {}
+
+-- 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)
+	bucket.liquids[source] = {
+		source = source,
+		flowing = flowing,
+		itemname = itemname,
+	}
+	bucket.liquids[flowing] = bucket.liquids[source]
+
+	if itemname ~= nil then
+		minetest.register_craftitem(itemname, {
+			inventory_image = inventory_image,
+			stack_max = 1,
+			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
+				n = minetest.env:get_node(pointed_thing.under)
+				if bucket.liquids[n.name] == nil then
+					-- Not a liquid
+					minetest.env:add_node(pointed_thing.above, {name=source})
+				elseif n.name ~= source then
+					-- It's a liquid
+					minetest.env:add_node(pointed_thing.under, {name=source})
+				end
+				return {name="bucket:bucket_empty"}
 			end
-		end
-		return false
-	end,
-})
+		})
+	end
+end
 
-minetest.register_craftitem("bucket:bucket_water", {
-	image = "bucket_water.png",
+minetest.register_craftitem("bucket:bucket_empty", {
+	inventory_image = "bucket.png",
 	stack_max = 1,
 	liquids_pointable = true,
-	on_place_on_ground = minetest.craftitem_place_item,
-	on_use = function(item, player, pointed_thing)
-		if pointed_thing.type == "node" then
-			n = minetest.env:get_node(pointed_thing.under)
-			if n.name == "default:water_source" then
-				-- unchanged
-			elseif n.name == "default:water_flowing" or n.name == "default:lava_source" or n.name == "default:lava_flowing" then
-				minetest.env:add_node(pointed_thing.under, {name="default:water_source"})
-			else
-				minetest.env:add_node(pointed_thing.above, {name="default:water_source"})
-			end
-			player:add_to_inventory_later('craft "bucket:bucket_empty" 1')
-			return 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
+		n = minetest.env:get_node(pointed_thing.under)
+		liquiddef = bucket.liquids[n.name]
+		if liquiddef ~= nil and liquiddef.source == n.name and liquiddef.itemname ~= nil then
+			minetest.env:add_node(pointed_thing.under, {name="air"})
+			return {name=liquiddef.itemname}
 		end
-		return false
 	end,
 })
 
-minetest.register_craftitem("bucket:bucket_lava", {
-	image = "bucket_lava.png",
-	stack_max = 1,
-	liquids_pointable = true,
-	on_place_on_ground = minetest.craftitem_place_item,
-	on_use = function(item, player, pointed_thing)
-		if pointed_thing.type == "node" then
-			n = minetest.env:get_node(pointed_thing.under)
-			if n.name == "default:lava_source" then
-				-- unchanged
-			elseif n.name == "default:water_source" or n.name == "default:water_flowing" or n.name == "default:lava_flowing" then
-				minetest.env:add_node(pointed_thing.under, {name="default:lava_source"})
-			else
-				minetest.env:add_node(pointed_thing.above, {name="default:lava_source"})
-			end
-			player:add_to_inventory_later('craft "bucket:bucket_empty" 1')
-			return true
-		end
-		return false
-	end,
+bucket.register_liquid(
+	"default:water_source",
+	"default:water_flowing",
+	"bucket:bucket_water",
+	"bucket_water.png"
+)
+
+bucket.register_liquid(
+	"default:lava_source",
+	"default:lava_flowing",
+	"bucket:bucket_lava",
+	"bucket_lava.png"
+)
+
+minetest.register_craft({
+	type = "fuel",
+	recipe = "default:bucket_lava",
+	burntime = 60,
 })
-- 
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