mods/bucket/init.lua

   1 -- Minetest 0.4 mod: bucket
   2 -- See README.txt for licensing and other information.
   3
   4 minetest.register_alias("bucket", "bucket:bucket_empty")
   5 minetest.register_alias("bucket_water", "bucket:bucket_water")
   6 minetest.register_alias("bucket_lava", "bucket:bucket_lava")
   7
   8 minetest.register_craft({
   9         output = 'bucket:bucket_empty 1',
  10         recipe = {
  11                 {'default:steel_ingot', '', 'default:steel_ingot'},
  12                 {'', 'default:steel_ingot', ''},
  13         }
  14 })
  15
  16 bucket = {}
  17 bucket.liquids = {}
  18
  19 -- Register a new liquid
  20 --   source = name of the source node
  21 --   flowing = name of the flowing node
  22 --   itemname = name of the new bucket item (or nil if liquid is not takeable)
  23 --   inventory_image = texture of the new bucket item (ignored if itemname == nil)
  24 -- This function can be called from any mod (that depends on bucket).
  25 function bucket.register_liquid(source, flowing, itemname, inventory_image)
  26         bucket.liquids[source] = {
  27                 source = source,
  28                 flowing = flowing,
  29                 itemname = itemname,
  30         }
  31         bucket.liquids[flowing] = bucket.liquids[source]
  32
  33         if itemname ~= nil then
  34                 minetest.register_craftitem(itemname, {
  35                         inventory_image = inventory_image,
  36                         stack_max = 1,
  37                         liquids_pointable = true,
  38                         on_use = function(itemstack, user, pointed_thing)
  39                                 -- Must be pointing to node
  40                                 if pointed_thing.type ~= "node" then
  41                                         return
  42                                 end
  43                                 -- Check if pointing to a liquid
  44                                 n = minetest.env:get_node(pointed_thing.under)
  45                                 if bucket.liquids[n.name] == nil then
  46                                         -- Not a liquid
  47                                         minetest.env:add_node(pointed_thing.above, {name=source})
  48                                 elseif n.name ~= source then
  49                                         -- It's a liquid
  50                                         minetest.env:add_node(pointed_thing.under, {name=source})
  51                                 end
  52                                 return {name="bucket:bucket_empty"}
  53                         end
  54                 })
  55         end
  56 end
  57
  58 minetest.register_craftitem("bucket:bucket_empty", {
  59         description = "Empty Bucket",
  60         inventory_image = "bucket.png",
  61         stack_max = 1,
  62         liquids_pointable = true,
  63         on_use = function(itemstack, user, pointed_thing)
  64                 -- Must be pointing to node
  65                 if pointed_thing.type ~= "node" then
  66                         return
  67                 end
  68                 -- Check if pointing to a liquid source
  69                 n = minetest.env:get_node(pointed_thing.under)
  70                 liquiddef = bucket.liquids[n.name]
  71                 if liquiddef ~= nil and liquiddef.source == n.name and liquiddef.itemname ~= nil then
  72                         minetest.env:add_node(pointed_thing.under, {name="air"})
  73                         return {name=liquiddef.itemname}
  74                 end
  75         end,
  76 })
  77
  78 bucket.register_liquid(
  79         "default:water_source",
  80         "default:water_flowing",
  81         "bucket:bucket_water",
  82         "bucket_water.png"
  83 )
  84
  85 bucket.register_liquid(
  86         "default:lava_source",
  87         "default:lava_flowing",
  88         "bucket:bucket_lava",
  89         "bucket_lava.png"
  90 )
  91
  92 minetest.register_craft({
  93         type = "fuel",
  94         recipe = "bucket:bucket_lava",
  95         burntime = 60,
  96 })