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"Lazy" crafting API

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Instead of checking for and immediately
completing a craft, the API can be told to
search for a recipe and return a function that
can be used to commit it later.  This way,
we can search for a valid recipe during the
"check" phase of a craft check and then
commit it during the "after" phase.
This commit is contained in:
Aaron Suen 2020-09-29 21:44:26 -04:00
parent a63b38f72a
commit a78bf0ea2a
1 changed files with 66 additions and 53 deletions
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119
mods/nc_api_craft/craft_check.lua
View File

@ -75,64 +75,65 @@ local function craftcheck(recipe, pos, node, data, xx, xz, zx, zz)
if type(dur) == "function" then dur = dur(pos, data) end
if not dur or dur < mindur then
if data.inprogress then data.inprogress(pos, data) end
return 1
return false
end
end
if data.before then data.before(pos, data) end
if recipe.before then recipe.before(pos, data) end
for _, v in ipairs(recipe.nodes) do
if v.replace then
local p = rel(v.x, v.y, v.z)
local r = v.replace
while type(r) == "function" do
r = r(p, v)
end
if r and type(r) == "string" then
r = {name = r}
end
if v.match.excess then
local s = nodecore.stack_get(p)
local x = s:get_count() - (v.match.count or 1)
if x > 0 then
s:set_count(x)
nodecore.item_eject(p, s)
return function()
if data.before then data.before(pos, data) end
if recipe.before then recipe.before(pos, data) end
for _, v in ipairs(recipe.nodes) do
if v.replace then
local p = rel(v.x, v.y, v.z)
local r = v.replace
while type(r) == "function" do
r = r(p, v)
end
if r and type(r) == "string" then
r = {name = r}
end
if v.match.excess then
local s = nodecore.stack_get(p)
local x = s:get_count() - (v.match.count or 1)
if x > 0 then
s:set_count(x)
nodecore.item_eject(p, s)
end
nodecore.stack_set(p, ItemStack(""))
end
if r then
local n = minetest.get_node(p)
r.param2 = n.param2
nodecore.set_loud(p, r)
nodecore.fallcheck(p)
end
nodecore.stack_set(p, ItemStack(""))
end
if r then
local n = minetest.get_node(p)
r.param2 = n.param2
nodecore.set_loud(p, r)
nodecore.fallcheck(p)
if v.dig then
local p = rel(v.x, v.y, v.z)
minetest.node_dig(p, minetest.get_node(p))
end
end
if v.dig then
local p = rel(v.x, v.y, v.z)
minetest.node_dig(p, minetest.get_node(p))
if recipe.items then
for _, v in pairs(recipe.items) do
nodecore.item_eject(rel(v.x or 0, v.y or 0, v.z or 0),
v.name, v.scatter, v.count, v.velocity)
end
end
end
if recipe.items then
for _, v in pairs(recipe.items) do
nodecore.item_eject(rel(v.x or 0, v.y or 0, v.z or 0),
v.name, v.scatter, v.count, v.velocity)
if recipe.consumewield then
nodecore.consume_wield(data.crafter, recipe.consumewield)
elseif recipe.toolgroups and recipe.toolwear and data.crafter then
nodecore.wear_wield(data.crafter, recipe.toolgroups, recipe.toolwear)
end
if recipe.after then recipe.after(pos, data) end
if data.after then data.after(pos, data) end
nodecore.player_discover(data.crafter, "craft:" .. recipe.label)
local witness = data.witness or recipe.witness
if witness then
nodecore.witness(pos, {recipe.action, recipe.label, data.label})
end
nodecore.log("action", (data.crafter and data.crafter:get_player_name() or "unknown")
.. " completed recipe \"" .. recipe.label .. "\" at " ..
minetest.pos_to_string(pos) .. " upon " .. node.name)
end
if recipe.consumewield then
nodecore.consume_wield(data.crafter, recipe.consumewield)
elseif recipe.toolgroups and recipe.toolwear and data.crafter then
nodecore.wear_wield(data.crafter, recipe.toolgroups, recipe.toolwear)
end
if recipe.after then recipe.after(pos, data) end
if data.after then data.after(pos, data) end
nodecore.player_discover(data.crafter, "craft:" .. recipe.label)
local witness = data.witness or recipe.witness
if witness then
nodecore.witness(pos, {recipe.action, recipe.label, data.label})
end
nodecore.log("action", (data.crafter and data.crafter:get_player_name() or "unknown")
.. " completed recipe \"" .. recipe.label .. "\" at " ..
minetest.pos_to_string(pos) .. " upon " .. node.name)
return true
end
local function tryall(rc, pos, node, data)
@ -182,12 +183,13 @@ local function checkall(pos, node, data, set)
data.recipe = rc
if data.rootmatch then data.rootmatch(data) end
local r = tryall(rc, pos, node, data)
if r then return r == true end
if r == false then return end
if r then return r end
end
end
end
function nodecore.craft_check(pos, node, data)
function nodecore.craft_search(pos, node, data)
if not data or not data.action then
return error("craft_check without data.action")
end
@ -203,7 +205,8 @@ function nodecore.craft_check(pos, node, data)
local key = data.action .. "|" .. node.name
local set = craftidx[key]
if set then
if checkall(pos, node, data, set) then return true end
local found = checkall(pos, node, data, set)
if found then return found end
for _, i in pairs(set) do seen[i] = true end
end
end
@ -217,7 +220,17 @@ function nodecore.craft_check(pos, node, data)
for _, i in ipairs(set) do
if not seen[i] then unique[#unique + 1] = i end
end
if #unique > 0 and checkall(pos, node, data, unique) then return true end
if #unique > 0 then
local found = checkall(pos, node, data, unique)
if found then return found end
end
end
end
end
function nodecore.craft_check(...)
local commit = nodecore.craft_search(...)
if not commit then return end
commit()
return true
end