moreblocks/stairsplus/api/station.lua

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-- for creating the circular saw and similar nodes
local api = stairsplus.api
local default_stack_max = tonumber(minetest.settings:get("default_stack_max")) or 99
local station = {}
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function station.update_infotext(pos)
local node = minetest.get_node(pos)
local def = minetest.registered_nodes[node.name]
return def.update_infotext(pos)
end
function station.build_formspec(pos)
local node = minetest.get_node(pos)
local def = minetest.registered_nodes[node.name]
return def.build_formspec(pos)
end
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function station.get_cost(shaped_node)
if shaped_node == "" then
return 0
end
local shape = api.get_shape_of_shaped_node(shaped_node)
if shape == "node" then
return 8
end
local shape_def = api.registered_shapes[shape]
return shape_def and shape_def.eighths
end
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function station.get_current_node(pos)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
local input_stack = inv:get_stack("input", 1)
if not input_stack:is_empty() then
return input_stack:get_name()
end
local micro_stack = inv:get_stack("micro", 1)
if not micro_stack:is_empty() then
return api.get_node_of_shaped_node(micro_stack:get_name())
end
local recycle_stack = inv:get_stack("recycle", 1)
if not recycle_stack:is_empty() then
return api.get_node_of_shaped_node(recycle_stack:get_name())
end
end
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function station.can_dig(pos)
local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
return inv:is_empty("input") and inv:is_empty("micro")
end
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function station.on_receive_fields(pos, formname, fields, sender)
local meta = minetest.get_meta(pos)
local max = tonumber(fields.max_offered)
if max and max > 0 then
meta:set_int("max_offered", max)
-- Update to show the correct number of items:
station.update_inventory(pos)
station.update_infotext(pos)
end
end
function station.update_inventory(pos, taken_stack)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
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local node = station.get_current_node(pos)
if not node then
for i = 1, inv:get_size("output") do
inv:set_stack("output", i, ItemStack())
end
return
end
local input_stack = inv:get_stack("input", 1)
local micro_stack = inv:get_stack("micro", 1)
local recycle_stack = inv:get_stack("recycle", 1)
local current_value = 8 * input_stack:get_count() + micro_stack:get_count()
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local new_value = current_value + station.get_cost(recycle_stack:get_name()) * recycle_stack:get_count()
if taken_stack then
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new_value = new_value - station.get_cost(taken_stack:get_name()) * taken_stack:get_count()
end
local new_micros = new_value % 8
local new_blocks = math.floor(new_value / 8)
inv:set_stack("input", 1, ItemStack({name = node, count = new_blocks}))
inv:set_stack("micro", 1, ItemStack({name = api.get_micronode(node), count = new_micros}))
inv:set_stack("recycle", 1, ItemStack())
if new_value == 0 then
for i = 1, inv:get_size("output") do
inv:set_stack("output", i, "")
end
return
end
local valid_shapes = api.shapes_by_node[node]
local shape_groups = minetest.registered_nodes[minetest.get_node(pos).name]._stairsplus_shape_groups
local max_offered = meta:get_int("max_offered")
local i = 1
for _, group in ipairs(shape_groups) do
for _, shape in ipairs(api.shapes_by_group[group]) do
if valid_shapes[shape] then
local shape_def = api.registered_shapes[shape]
local shaped_node = api.format_name(node, shape)
local stack_max = math.min(max_offered, ItemStack(shaped_node):get_stack_max())
local count = math.min(stack_max, math.floor(new_value / shape_def.eighths))
local stack
if count > 0 then
stack = ItemStack({name = shaped_node, count = count})
else
stack = ""
end
inv:set_stack("output", i, stack)
i = i + 1
end
end
end
for j = i, inv:get_size("output") do
inv:set_stack("output", j, "")
end
end
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function station.on_metadata_inventory_put(pos, listname, index, stack, player)
station.update_inventory(pos)
station.update_infotext(pos)
end
function station.on_metadata_inventory_take(pos, listname, index, stack, player)
if listname == "output" then
station.update_inventory(pos, stack)
else
station.update_inventory(pos)
end
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station.update_infotext(pos)
end
-- Moving the inventory of the station around is not allowed because it
-- is a fictional inventory. Moving inventory around would be rather
-- impractical and make things more difficult to calculate:
function station.allow_metadata_inventory_move()
return 0
end
function station.allow_metadata_inventory_put(pos, listname, index, stack, player)
if listname ~= "recycle" then
return 0
end
local shaped_node = stack:get_name()
local node = api.get_node_of_shaped_node(shaped_node)
local shape = api.get_shape_of_shaped_node(shaped_node)
if not (node and shape) then
return 0
end
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
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local current_node = station.get_current_node(pos)
if current_node and node ~= current_node then
return 0
end
local count = stack:get_count()
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local cost = station.get_cost(shaped_node)
local input_stack = inv:get_stack("input", 1)
local micro_stack = inv:get_stack("micro", 1)
local current_value = 8 * input_stack:get_count() + micro_stack:get_count()
local max_value = 8 * ItemStack(node):get_stack_max() + 7
local available_value = max_value - current_value
local available_count = math.floor(available_value / cost)
return math.min(count, available_count)
end
function station.on_construct(pos)
local meta = minetest.get_meta(pos)
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meta:set_string("formspec", station.build_formspec(pos))
meta:set_string("max_offered", default_stack_max) -- How many items of this kind are offered by default?
local inv = meta:get_inventory()
inv:set_size("input", 1) -- Input slot for full blocks of material x.
inv:set_size("micro", 1) -- Storage for 1-7 surplus microblocks.
inv:set_size("recycle", 1) -- Surplus partial blocks can be placed here.
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inv:set_size("output", 6 * 9) -- 6x9 versions of stair-parts of material x.
station.update_infotext(pos)
end
function station.after_place_node(pos, placer)
local meta = minetest.get_meta(pos)
if minetest.is_player(placer) then
meta:set_string("owner", placer:get_player_name())
end
end
function api.register_station(name, shape_groups, def)
def.after_place_node = def.after_place_node or station.after_place_node
def.on_construct = def.on_construct or station.on_construct
def.can_dig = def.can_dig or station.can_dig
def.on_receive_fields = def.on_receive_fields or station.on_receive_fields
def.allow_metadata_inventory_move = def.allow_metadata_inventory_move or station.allow_metadata_inventory_move
def.allow_metadata_inventory_put = def.allow_metadata_inventory_put or station.allow_metadata_inventory_put
def.allow_metadata_inventory_take = def.allow_metadata_inventory_take or station.allow_metadata_inventory_take
def.on_metadata_inventory_put = def.on_metadata_inventory_put or station.on_metadata_inventory_put
def.on_metadata_inventory_take = def.on_metadata_inventory_take or station.on_metadata_inventory_take
def._stairsplus_shape_groups = shape_groups
minetest.register_node(name, def)
end
api.station = station