VoxeLibre/mods/ITEMS/mcl_buckets/API.md

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# mcl_buckets
Adds an API to register buckets to VL
## mcl_buckets.register_liquid(def)
Register a new liquid.
Accepts the following parameters:
* `source_place`: a string or a function
* `string`: name of the node to place
* `function(pos)`: will return name of the node to place with pos being the placement position
* `source_take`: table of liquid source node names to take
* `bucketname`: itemstring of the new bucket item
* `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) additional check before liquid placement (return 2 booleans: (1) whether to place the liquid source and (2) whether to empty the bucket)
* `groups`: optional list of item groups
**Usage example:**
```lua
mcl_buckets.register_liquid({
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bucketname = "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 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 },
})
```