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MineClone2/mods/ITEMS/mcl_buckets/API.md

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# mcl_buckets
Add an API to register buckets to mcl
## mcl_buckets.register_liquid(itemname, def)
Register a new bucket of liquid.
`itemname` is the itemstring of the new bucket item
`def` is a table containing the folowing fields:
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* source_place: a string or function.
* string: name of the node to place
* function(pos): will returns name of the node to place with pos being the placement position
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* source_take: table of liquid source node names to take
* inventory_image: texture of the new bucket item (ignored if itemname == nil)
* name: user-visible bucket description
* longdesc: long explanatory description (for help)
* usagehelp: short usage explanation (for help)
* tt_help: very short tooltip help
* extra_check(pos, placer): (optional) function(pos)
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* groups: optional list of item groups
**Usage exemple:**
```lua
mcl_buckets.register_liquid("dummy:bucket_dummy", {
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--source_place = "dummy:dummy_source",
source_place = function(pos)
if condition then
return "dummy:dummy_source"
else
return "dummy:dummy_source_nether"
end
end,
source_take = {"dummy:dummy_source"},
inventory_image = "bucket_dummy.png",
name = S("Dummy liquid Bucket"),
longdesc = S("This bucket is filled with a dummy liquid."),
usagehelp = S("Place it to empty the bucket and create a dummy liquid source."),
tt_help = S("Places a dummy liquid source"),
extra_check = function(pos, placer)
--pos = pos where the liquid should be placed
--placer people who tried to place the bucket (can be nil)
--no liquid node will be placed
--the bucket will not be emptied
--return false, false
--liquid node will be placed
--the bucket will be emptied
return true, true
end,
groups = { dummy_group = 123 },
})
```