minetest-mm/mods/anvils/init.lua

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2020-10-26 17:38:53 +01:00
anvils = {}
local MAX_WEAR = 65535
local SAME_TOOL_REPAIR_BOOST = math.ceil(MAX_WEAR * 0.12) -- 12%
-- Given a tool and material stack, returns how many items of the material stack
-- needs to be used up to repair the tool.
local function get_consumed_materials(tool, material)
local wear = tool:get_wear()
if wear == 0 then
return 0
end
local tooldef = tool:get_definition()
local slice = math.ceil(MAX_WEAR / tooldef._repair_material_total)
local matsize = material:get_count()
local materials_used = 0
for m = 1, math.min(tooldef._repair_material_total, matsize) do
materials_used = materials_used + 1
if wear - (m * slice) <= 0 then
break
end
end
return materials_used
end
-- Given 2 input stacks, tells you which is the tool and which is the material.
-- Returns ("tool", input1, input2) if input1 is tool and input2 is material.
-- Returns ("material", input2, input1) if input1 is material and input2 is tool.
-- Returns nil otherwise.
local function distinguish_tool_and_material(input1, input2)
local def1 = input1:get_definition()
local def2 = input2:get_definition()
if def1.type == "tool" and def1._repair_material then
return "tool", input1, input2
elseif def2.type == "tool" and def2._repair_material then
return "material", input2, input1
else
return nil
end
end
-- Repair calculation helper.
-- Adds the “inverse” values of wear1 and wear2.
-- Then adds a boost health value directly.
-- Returns the resulting (capped) wear.
local function calculate_repair(wear1, wear2, boost)
local new_health = (MAX_WEAR - wear1) + (MAX_WEAR - wear2)
if boost then
new_health = new_health + boost
end
return math.max(0, math.min(MAX_WEAR, MAX_WEAR - new_health))
end
-- Update the inventory slots of an anvil node.
-- meta: Metadata of anvil node
local function update_anvil_slots(meta)
local inv = meta:get_inventory()
local input1, input2, output
input1 = inv:get_stack("input", 1)
input2 = inv:get_stack("input", 2)
output = inv:get_stack("output", 1)
local new_output, name_item
-- Both input slots occupied
if (not input1:is_empty() and not input2:is_empty()) then
-- Repair, if tool
local def1 = input1:get_definition()
local def2 = input2:get_definition()
-- Same tool twice
if input1:get_name() == input2:get_name()
and def1.type == "tool"
and (input1:get_wear() > 0 or input2:get_wear() > 0) then
-- Add tool health together plus a small bonus
-- TODO: Combine tool enchantments
local new_wear = calculate_repair(input1:get_wear(),
input2:get_wear(), SAME_TOOL_REPAIR_BOOST)
input1:set_wear(new_wear)
name_item = input1
new_output = name_item
-- Tool + repair item
else
-- Any tool can have a repair item. This may be defined in the
-- tool's item definition as an itemstring in the field
-- `_repair_material`. Only if this field is set, the tool can be
-- repaired with a material item. Example: Steel Pickaxe + Steel
-- Ingot. `_repair_material = default:steel_ingot`
-- Big repair bonus
-- TODO: Combine tool enchantments
local distinguished, tool, material =
distinguish_tool_and_material(input1, input2)
if distinguished then
local tooldef = tool:get_definition()
local has_correct_material = false
if string.sub(tooldef._repair_material, 1, 6) == "group:" then
has_correct_material = minetest.get_item_group(
material:get_name(),
string.sub(tooldef._repair_material, 7)) ~= 0
elseif material:get_name() == tooldef._repair_material then
has_correct_material = true
end
if has_correct_material and tool:get_wear() > 0 then
local materials_used = get_consumed_materials(tool, material)
local slice = math.ceil(
MAX_WEAR / tooldef._repair_material_total)
local wear = tool:get_wear()
local new_wear = wear - (materials_used * slice)
tool:set_wear(math.max(0, new_wear))
new_output = tool
else
new_output = ""
end
else
new_output = ""
end
end
-- if tool or item removed, clear output
elseif not output:is_empty() then
new_output = ""
end
-- Set the new output slot
if new_output ~= nil then
inv:set_stack("output", 1, new_output)
end
end
-- Drop input items of anvil at pos with metadata meta
local function drop_anvil_items(pos, meta)
local inv = meta:get_inventory()
for i = 1, inv:get_size("input") do
local stack = inv:get_stack("input", i)
if not stack:is_empty() then
local p = {
x = pos.x + math.random(-10, 10) / 9,
y = pos.y,
z = pos.z + math.random(-10, 10) / 9}
minetest.add_item(p, stack)
end
end
end
local anvildef = {
description = "Anvil",
groups = {
cracky = 1, level = 2, falling_node = 1, falling_node_damage = 4
},
tiles = {
"anvils_anvil_top.png",
"anvils_anvil_base.png",
"anvils_anvil_side.png"
},
paramtype = "light",
sunlight_propagates = true,
is_ground_content = false,
paramtype2 = "facedir",
drawtype = "nodebox",
2021-05-16 11:33:49 +02:00
use_texture_alpha = "clip",
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node_box = {
type = "fixed",
fixed = {
{-8/16, 2/16, -5/16, 8/16, 8/16, 5/16}, -- top
{-5/16, -4/16, -2/16, 5/16, 5/16, 2/16}, -- middle
{-8/16, -8/16, -5/16, 8/16, -4/16, 5/16}, -- base
}
},
sounds = default.node_sound_metal_defaults(),
after_dig_node = function(pos, oldnode, oldmetadata, digger)
local meta = minetest.get_meta(pos)
local meta2 = meta
meta:from_table(oldmetadata)
drop_anvil_items(pos, meta)
meta:from_table(meta2:to_table())
end,
allow_metadata_inventory_put = function(pos, listname, index, stack, player)
if listname == "output" then
return 0
else
return stack:get_count()
end
end,
allow_metadata_inventory_move = function(pos, from_list, from_index,
to_list, to_index, count, player)
if to_list == "output" then
return 0
elseif from_list == "output" and to_list == "input" then
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
if inv:get_stack(to_list, to_index):is_empty() then
return count
else
return 0
end
else
return count
end
end,
on_metadata_inventory_put = function(pos, listname, index, stack, player)
local meta = minetest.get_meta(pos)
update_anvil_slots(meta)
end,
on_metadata_inventory_move = function(pos, from_list, from_index,
to_list, to_index, count, player)
local meta = minetest.get_meta(pos)
if from_list == "output" and to_list == "input" then
local inv = meta:get_inventory()
for i = 1, inv:get_size("input") do
if i ~= to_index then
local istack = inv:get_stack("input", i)
istack:set_count(math.max(0, istack:get_count() - count))
inv:set_stack("input", i, istack)
end
end
end
update_anvil_slots(meta)
end,
allow_metadata_inventory_take = function(pos, listname, index, stack, player)
if listname == "output" then
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
local input1 = inv:get_stack("input", 1)
local input2 = inv:get_stack("input", 2)
if input1:is_empty() or input2:is_empty() then
return 0
end
end
return stack:get_count()
end,
on_metadata_inventory_take = function(pos, listname, index, stack, player)
local meta = minetest.get_meta(pos)
if listname == "output" then
local inv = meta:get_inventory()
local input1 = inv:get_stack("input", 1)
local input2 = inv:get_stack("input", 2)
-- Both slots occupied?
if not input1:is_empty() and not input2:is_empty() then
-- Take as many items as needed
local distinguished, tool,
material = distinguish_tool_and_material(input1, input2)
if distinguished then
-- Tool + material: Take tool and as many materials as needed
local materials_used = get_consumed_materials(tool, material)
material:set_count(material:get_count() - materials_used)
tool:take_item()
local player_name = player:get_player_name()
minetest.sound_play("anvil_use", {
to_player = player_name, gain = 1.0})
if distinguished == "tool" then
input1, input2 = tool, material
else
input1, input2 = material, tool
end
inv:set_stack("input", 1, input1)
inv:set_stack("input", 2, input2)
else
-- Else take 1 item from each stack
input1:take_item()
input2:take_item()
inv:set_stack("input", 1, input1)
inv:set_stack("input", 2, input2)
end
end
elseif listname == "input" then
update_anvil_slots(meta)
end
end,
on_construct = function(pos)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
inv:set_size("input", 2)
inv:set_size("output", 1)
meta:set_string("formspec",
"size[8,6.5]"
.. "list[context;input;1,1;1,1;]"
.. "list[context;input;3.5,1;1,1;1]"
.. "list[context;output;6,1;1,1;]"
.. "list[current_player;main;0,2.5;8,4]"
.. "label[1.0,0.2;Tool]"
.. "label[3.5,0.2;Material]"
.. "label[6,0.2;Output]"
.. "field_close_on_enter[name;false]"
.. "listring[context;input]"
.. "listring[context;output]"
.. "listring[current_player;main]"
.. "listring[current_player;main]")
end,
}
if minetest.get_modpath("screwdriver") then
anvildef.on_rotate = screwdriver.rotate_simple
end
minetest.register_node("anvils:anvil", anvildef)
minetest.register_alias("anvils:anvil_damage_1", "anvils:anvil")
minetest.register_alias("anvils:anvil_damage_2", "anvils:anvil")
minetest.register_craft({
output = "anvils:anvil",
recipe = {
{"default:steelblock", "default:steelblock", "default:steelblock"},
{"", "default:steel_ingot", ""},
{"default:steel_ingot", "default:steel_ingot", "default:steel_ingot"},
}
})
dofile(minetest.get_modpath("anvils") .. "/tools.lua")