moreblocks/stairsplus/api/recipe.lua

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-- for registering recipe schemas
local api = stairsplus.api
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api.registered_recipe_schemas = {}
api.registered_on_register_craft_schemas = {}
local function is_valid_output(item, shapes)
local item_name = item:match("^([^ ]+)")
return item_name and (shapes[item_name] or item_name == "node" or item_name:match(":"))
end
local function is_valid_item(item, shapes)
return is_valid_output(item, shapes) or item == ""
end
local function verify_schema(schema)
local problems = {}
if not (schema.type == "shaped" or schema.type == "shapeless" or schema.type == nil) then
table.insert(problems, ("unimplemented schema type %q"):format(schema.type))
end
if not is_valid_output(schema.output, api.registered_shapes) then
table.insert(problems, ("don't know how to handle output %q"):format(schema.output))
end
if schema.replacements then
for _, replacement in ipairs(schema.replacements) do
for _, item in ipairs(replacement) do
if not is_valid_item(item, api.registered_shapes) then
table.insert(problems, ("don't know how to handle replacement item %q"):format(item))
end
end
end
end
if schema.type == "shapeless" then
for _, item in ipairs(schema.recipe) do
if not is_valid_item(item, api.registered_shapes) then
table.insert(problems, ("don't know how to handle craft item %q"):format(item))
end
end
else
for _, row in ipairs(schema.recipe) do
for _, item in ipairs(row) do
if not is_valid_item(item, api.registered_shapes) then
table.insert(problems, ("don't know how to handle craft item %q"):format(item))
end
end
end
end
if #problems > 0 then
return table.concat(problems, ", ")
end
end
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function api.register_on_register_craft_schema(func)
table.insert(api.registered_on_register_craft_schemas, func)
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end
function api.register_craft_schema(schema)
local problems = verify_schema(schema)
if problems then
error(problems)
end
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stairsplus.log("info", "registering craft schema %s", minetest.serialize(schema):sub(#("return ")))
table.insert(api.registered_recipe_schemas, schema)
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for _, func in ipairs(api.registered_on_register_craft_schemas) do
func(schema)
end
end
local function has_the_right_shapes(schema, shapes)
if not is_valid_output(schema.output, shapes) then
return false
end
if schema.replacements then
for _, replacement in ipairs(schema.replacements) do
for _, item in ipairs(replacement) do
if not is_valid_item(item, shapes) then
return false
end
end
end
end
if schema.type == "shapeless" then
for _, item in ipairs(schema.recipe) do
if not is_valid_item(item, shapes) then
return false
end
end
elseif schema.type == "shaped" or schema.type == nil then
for _, row in ipairs(schema.recipe) do
for _, item in ipairs(row) do
if not is_valid_item(item, shapes) then
return false
end
end
end
end
return true
end
local function register_for_schema(node, schema)
local recipe = table.copy(schema)
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recipe.output = api.get_schema_recipe_item(node, recipe.output)
if recipe.replacements then
for _, replacement in ipairs(recipe.replacements) do
for i, item in ipairs(replacement) do
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replacement[i] = api.get_schema_recipe_item(node, item)
end
end
end
if recipe.type == "shapeless" then
for i, item in ipairs(recipe.recipe) do
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recipe.recipe[i] = api.get_schema_recipe_item(node, item)
end
elseif recipe.type == "shaped" or recipe.type == nil then
for _, row in ipairs(recipe.recipe) do
for i, item in ipairs(row) do
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row[i] = api.get_schema_recipe_item(node, item)
end
end
end
stairsplus.log("info", "registering recipe %s", minetest.serialize(recipe):sub(#("return ")))
minetest.register_craft(recipe)
end
function api.register_schema_crafts_for_node(node)
stairsplus.log("info", "registering schema crafts for %q", node)
local shapes = api.get_shapes_hash(node)
for _, schema in ipairs(api.registered_recipe_schemas) do
if has_the_right_shapes(schema, shapes) then
stairsplus.log("verbose", "using schema %s", minetest.serialize(schema):sub(#("return ")))
register_for_schema(node, schema)
end
end
end
local function shapes_match(a, b)
local a_shapes = api.get_shapes(a)
local b_shapes = api.get_shapes(b)
if #a_shapes ~= #b_shapes then
return false
end
for i = 1, #a_shapes do
if a_shapes[i] ~= b_shapes[i] then
return false
end
end
return true
end
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function api.register_crafts_for_shapes(recipe)
if recipe.type == "cooking" then
assert(
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shapes_match(recipe.output, recipe.recipe),
("error: shapes of %s and %s do not match"):format(recipe.output, recipe.recipe)
)
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local shapes = api.get_shapes(recipe.recipe)
for _, shape in ipairs(shapes) do
minetest.register_craft({
type = "cooking",
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output = api.get_schema_recipe_item(recipe.output, shape),
recipe = api.get_schema_recipe_item(recipe.recipe, shape),
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cooktime = recipe.cooktime * (api.registered_shapes[shape].eighths / 8),
})
end
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elseif recipe.type == "fuel" then
local shapes = api.get_shapes(recipe.recipe)
for _, shape in ipairs(shapes) do
minetest.register_craft({
type = "fuel",
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recipe = api.get_schema_recipe_item(recipe.recipe, shape),
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burntime = recipe.burntime * (api.registered_shapes[shape].eighths / 8),
})
end
else
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error(("unsupported recipe type %s"):format(recipe.type))
end
end