melterns/fluidity/florbs.lua

163 lines
4.8 KiB
Lua

fluidity.florbs = {}
local function get_itemdef_field(nodename, fieldname)
if not minetest.registered_items[nodename] then
return nil
end
return minetest.registered_items[nodename][fieldname]
end
function fluidity.florbs.get_is_florb(stack)
return minetest.get_item_group(stack:get_name(), "florb") > 0
end
function fluidity.florbs.get_is_empty_florb(stack)
return minetest.get_item_group(stack:get_name(), "florb_blank") > 0
end
function fluidity.florbs.get_florb_contents(stack)
if not fluidity.florbs.get_is_florb(stack) then return nil end
local fcapacity = get_itemdef_field(stack:get_name(), "_florb_capacity")
local ffluid = get_itemdef_field(stack:get_name(), "_florb_source")
local meta = stack:get_meta()
local contents = meta:get_int("contents")
if not contents then
contents = 0
end
return contents, ffluid, fcapacity
end
local function update_florb(stack)
local def_desc = get_itemdef_field(stack:get_name(), "description")
local meta = stack:get_meta()
local contents, fluid_name, capacity = fluidity.florbs.get_florb_contents(stack)
meta:set_string("description", def_desc.."\nContains "..contents.."/"..capacity.." mB")
return stack
end
function fluidity.florbs.add_fluid(stack, source_name, amount)
if not fluidity.florbs.get_is_florb(stack) then return nil end
local source_node = fluidity.get_fluid_node(source_name)
local fluid = fluidity.fluid_name(source_node.description)
local internal = fluidity.fluid_short(fluid)
local florbname = stack:get_name()
if minetest.get_item_group(florbname, "florb_blank") > 0 then
stack = ItemStack(florbname.."_"..internal)
end
local meta = stack:get_meta()
local contents, fluid_name, capacity = fluidity.florbs.get_florb_contents(stack)
local remainder = 0
if contents + amount > capacity then
remainder = (contents + amount) - capacity
contents = capacity
else
contents = contents + amount
end
meta:set_int("contents", contents)
stack = update_florb(stack)
return stack, remainder
end
function fluidity.florbs.take_fluid(stack, amount)
if not fluidity.florbs.get_is_florb(stack) then return nil end
local meta = stack:get_meta()
local contents, fluid_name, capacity = fluidity.florbs.get_florb_contents(stack)
local blank = get_itemdef_field(stack:get_name(), "_florb_blank")
local leftover = 0
if contents - amount < 0 then
leftover = (contents - amount) * -1
contents = 0
else
contents = contents - amount
end
if contents == 0 then
stack = ItemStack(blank)
else
meta:set_int("contents", contents)
stack = update_florb(stack)
end
return stack, leftover
end
local function register_florbfluid(data)
local source_node = fluidity.get_fluid_node(data.source_name)
local fluid = fluidity.fluid_name(source_node.description)
local internal = fluidity.fluid_short(fluid)
local stationary_name = source_node.tiles[1].name:gsub("_source_animated", "")
-- Register base item
minetest.register_craftitem(data.mod_name..":"..data.florb_name.."_"..internal, {
description = data.florb_description.." ("..fluid..")",
inventory_image = stationary_name.."^[noalpha^"..data.textures[1].."^"..data.textures[2].."^[makealpha:255,0,0,",
_florb_capacity = data.capacity,
_florb_source = data.source_name,
_florb_blank = data.mod_name..":"..data.florb_name,
stack_max = 1,
groups = {florb = 1, not_in_creative_inventory = 1}
})
end
function fluidity.register_florb(data)
local mod_name = data.mod_name or minetest.get_current_modname()
local florb_name = data.florb_name or 'florb'
local florb_desc = data.florb_description or 'Florb'
local textures = data.textures or {"fluidity_florb.png", "fluidity_florb_mask.png"}
local capacity = data.capacity or 1000
-- Register base item
minetest.register_craftitem(mod_name..":"..florb_name, {
description = florb_desc.." (Empty)\nThis item holds millibuckets of fluid.",
inventory_image = textures[1].."^[noalpha^"..textures[2].."^[makealpha:255,0,0,",
_florb_capacity = capacity,
_florb_source = nil,
stack_max = 1,
groups = {florb = 1, florb_blank = 1}
})
-- Register for all fluids
if data.fluids then
-- This tank only uses certain fluids
for _, v in pairs(data.fluids) do
register_florbfluid({
mod_name = mod_name,
florb_name = florb_name,
florb_description = florb_desc,
textures = textures,
capacity = capacity,
source_name = v
})
end
else
-- Get all fluids and buckets and cache them
for i, v in pairs(bucket.liquids) do
if (i:find("source") ~= nil) then
-- Add tank
register_florbfluid({
mod_name = mod_name,
florb_name = florb_name,
florb_description = florb_desc,
textures = textures,
capacity = capacity,
source_name = v["source"]
})
end
end
end
end