MineClone2/mods/ITEMS/mcl_banners/patterncraft.lua

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local S = minetest.get_translator("mcl_banners")
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-- Pattern crafting. This file contains the code for crafting all the
-- emblazonings you can put on the banners. It's quite complicated;
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-- run-of-the-mill crafting won't work here.
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-- Maximum number of layers which can be put on a banner by crafting.
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local max_layers_crafting = 12
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-- Maximum number of layers when banner includes a gradient (workaround, see below).
local max_layers_gradient = 3
-- Max. number lines in the descriptions for the banner layers.
-- This is done to avoid huge tooltips.
local max_layer_lines = 6
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-- List of patterns with crafting rules
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local d = "group:dye" -- dye
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local e = "" -- empty slot (one of them must contain the banner)
local patterns = {
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["border"] = {
name = S("%s Bordure"),
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{ d, d, d },
{ d, e, d },
{ d, d, d },
},
["bricks"] = {
name = S("%s Bricks"),
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type = "shapeless",
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{ e, "mcl_core:brick_block", d },
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},
["circle"] = {
name = S("%s Roundel"),
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{ e, e, e },
{ e, d, e },
{ e, e, e },
},
["creeper"] = {
name = S("%s Creeper Charge"),
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type = "shapeless",
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{ e, "mcl_heads:creeper", d },
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},
["cross"] = {
name = S("%s Saltire"),
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{ d, e, d },
{ e, d, e },
{ d, e, d },
},
["curly_border"] = {
name = S("%s Bordure Indented"),
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type = "shapeless",
{ e, "mcl_core:vine", d },
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},
["diagonal_up_left"] = {
name = S("%s Per Bend Inverted"),
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{ e, e, e },
{ d, e, e },
{ d, d, e },
},
["diagonal_up_right"] = {
name = S("%s Per Bend Sinister Inverted"),
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{ e, e, e },
{ e, e, d },
{ e, d, d },
},
["diagonal_right"] = {
name = S("%s Per Bend"),
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{ e, d, d },
{ e, e, d },
{ e, e, e },
},
["diagonal_left"] = {
name = S("%s Per Bend Sinister"),
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{ d, d, e },
{ d, e, e },
{ e, e, e },
},
["flower"] = {
name = S("%s Flower Charge"),
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type = "shapeless",
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{ e, "mcl_flowers:oxeye_daisy", d },
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},
["gradient"] = {
name = S("%s Gradient"),
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{ d, e, d },
{ e, d, e },
{ e, d, e },
},
["gradient_up"] = {
name = S("%s Base Gradient"),
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{ e, d, e },
{ e, d, e },
{ d, e, d },
},
["half_horizontal_bottom"] = {
name = S("%s Per Fess Inverted"),
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{ e, e, e },
{ d, d, d },
{ d, d, d },
},
["half_horizontal"] = {
name = S("%s Per Fess"),
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{ d, d, d },
{ d, d, d },
{ e, e, e },
},
["half_vertical"] = {
name = S("%s Per Pale"),
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{ d, d, e },
{ d, d, e },
{ d, d, e },
},
["half_vertical_right"] = {
name = S("%s Per Pale Inverted"),
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{ e, d, d },
{ e, d, d },
{ e, d, d },
},
["thing"] = {
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-- Symbol used for the “Thing”: U+1F65D 🙝
name = S("%s Thing Charge"),
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type = "shapeless",
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-- TODO: Replace with enchanted golden apple
{ e, "mcl_core:apple_gold", d },
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},
["rhombus"] = {
name = S("%s Lozenge"),
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{ e, d, e },
{ d, e, d },
{ e, d, e },
},
["skull"] = {
name = S("%s Skull Charge"),
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type = "shapeless",
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{ e, "mcl_heads:wither_skeleton", d },
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},
["small_stripes"] = {
name = S("%s Paly"),
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{ d, e, d },
{ d, e, d },
{ e, e, e },
},
["square_bottom_left"] = {
name = S("%s Base Dexter Canton"),
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{ e, e, e },
{ e, e, e },
{ d, e, e },
},
["square_bottom_right"] = {
name = S("%s Base Sinister Canton"),
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{ e, e, e },
{ e, e, e },
{ e, e, d },
},
["square_top_left"] = {
name = S("%s Chief Dexter Canton"),
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{ d, e, e },
{ e, e, e },
{ e, e, e },
},
["square_top_right"] = {
name = S("%s Chief Sinister Canton"),
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{ e, e, d },
{ e, e, e },
{ e, e, e },
},
["straight_cross"] = {
name = S("%s Cross"),
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{ e, d, e },
{ d, d, d },
{ e, d, e },
},
["stripe_bottom"] = {
name = S("%s Base"),
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{ e, e, e },
{ e, e, e },
{ d, d, d },
},
["stripe_center"] = {
name = S("%s Pale"),
{ e, d, e },
{ e, d, e },
{ e, d, e },
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},
["stripe_downleft"] = {
name = S("%s Bend Sinister"),
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{ e, e, d },
{ e, d, e },
{ d, e, e },
},
["stripe_downright"] = {
name = S("%s Bend"),
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{ d, e, e },
{ e, d, e },
{ e, e, d },
},
["stripe_left"] = {
name = S("%s Pale Dexter"),
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{ d, e, e },
{ d, e, e },
{ d, e, e },
},
["stripe_middle"] = {
name = S("%s Fess"),
{ e, e, e },
{ d, d, d },
{ e, e, e },
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},
["stripe_right"] = {
name = S("%s Pale Sinister"),
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{ e, e, d },
{ e, e, d },
{ e, e, d },
},
["stripe_top"] = {
name = S("%s Chief"),
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{ d, d, d },
{ e, e, e },
{ e, e, e },
},
["triangle_bottom"] = {
name = S("%s Chevron"),
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{ e, e, e },
{ e, d, e },
{ d, e, d },
},
["triangle_top"] = {
name = S("%s Chevron Inverted"),
{ d, e, d },
{ e, d, e },
{ e, e, e },
},
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["triangles_bottom"] = {
name = S("%s Base Indented"),
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{ e, e, e },
{ d, e, d },
{ e, d, e },
},
["triangles_top"] = {
name = S("%s Chief Indented"),
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{ e, d, e },
{ d, e, d },
{ e, e, e },
},
}
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-- Just a simple reverse-lookup table from dye itemstring to banner color ID
-- to avoid some pointless future iterations.
local dye_to_colorid_mapping = {}
for colorid, colortab in pairs(mcl_banners.colors) do
dye_to_colorid_mapping[colortab[5]] = colorid
end
-- Create a banner description containing all the layer names
mcl_banners.make_advanced_banner_description = function(description, layers)
if layers == nil or #layers == 0 then
-- No layers, revert to default
return ""
else
local layerstrings = {}
for l=1, #layers do
-- Prevent excess length description
if l > max_layer_lines then
break
end
-- Layer text line.
local color = mcl_banners.colors[layers[l].color][6]
local pattern_name = patterns[layers[l].pattern].name
-- The pattern name is a format string (e.g. “%s Base”)
table.insert(layerstrings, string.format(pattern_name, color))
end
-- Warn about missing information
if #layers == max_layer_lines + 1 then
table.insert(layerstrings, S("And one addional layer"))
elseif #layers > max_layer_lines + 1 then
table.insert(layerstrings, string.format(S("And %d addional layers"), #layers - max_layer_lines))
end
-- Final string concatenations: Just a list of strings
local append = table.concat(layerstrings, "\n")
description = description .. "\n" .. core.colorize("#8F8F8F", append)
return description
end
end
--[[ This is for handling all those complex pattern crafting recipes.
Parameters same as for minetest.register_craft_predict.
craft_predict is set true when called from minetest.craft_preview, in this case, this function
MUST NOT change the crafting grid.
]]
local banner_pattern_craft = function(itemstack, player, old_craft_grid, craft_inv, craft_predict)
if minetest.get_item_group(itemstack:get_name(), "banner") ~= 1 then
return
end
--[[ Basic item checks: Banners and dyes ]]
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local banner -- banner item
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local banner2 -- second banner item (used when copying)
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local dye -- itemstring of the dye being used
local banner_index -- crafting inventory index of the banner
local banner2_index
for i = 1, player:get_inventory():get_size("craft") do
local itemname = old_craft_grid[i]:get_name()
if minetest.get_item_group(itemname, "banner") == 1 then
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if not banner then
banner = old_craft_grid[i]
banner_index = i
elseif not banner2 then
banner2 = old_craft_grid[i]
banner2_index = i
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else
return
end
-- Check if all dyes are equal
elseif minetest.get_item_group(itemname, "dye") == 1 then
if dye == nil then
dye = itemname
elseif itemname ~= dye then
return ItemStack("")
end
end
end
if not banner then
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return
end
--[[ Check copy ]]
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if banner2 then
-- Two banners found: This means copying!
local b1meta = banner:get_meta()
local b2meta = banner2:get_meta()
local b1layers_raw = b1meta:get_string("layers")
local b2layers_raw = b2meta:get_string("layers")
local b1layers = minetest.deserialize(b1layers_raw)
local b2layers = minetest.deserialize(b2layers_raw)
if type(b1layers) ~= "table" then
b1layers = {}
end
if type(b2layers) ~= "table" then
b2layers = {}
end
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-- For copying to be allowed, one banner has to have no layers while the other one has at least 1 layer.
-- The banner with layers will be used as a source.
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local src_banner, src_layers, src_layers_raw, src_desc, src_index
if #b1layers == 0 and #b2layers > 0 then
src_banner = banner2
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src_layers = b2layers
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src_layers_raw = b2layers_raw
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src_desc = minetest.registered_items[src_banner:get_name()].description
src_index = banner2_index
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elseif #b2layers == 0 and #b1layers > 0 then
src_banner = banner
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src_layers = b1layers
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src_layers_raw = b1layers_raw
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src_desc = minetest.registered_items[src_banner:get_name()].description
src_index = banner_index
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else
return ItemStack("")
end
-- Set output metadata
local imeta = itemstack:get_meta()
imeta:set_string("layers", src_layers_raw)
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-- Generate new description. This clears any (anvil) name from the original banners.
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imeta:set_string("description", mcl_banners.make_advanced_banner_description(src_desc, src_layers))
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if not craft_predict then
-- Don't destroy source banner so this recipe is a true copy
craft_inv:set_stack("craft", src_index, src_banner)
end
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return itemstack
end
-- No two banners found
-- From here on we check which banner pattern should be added
--[[ Check patterns ]]
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-- Get old layers
local ometa = banner:get_meta()
local layers_raw = ometa:get_string("layers")
local layers = minetest.deserialize(layers_raw)
if type(layers) ~= "table" then
layers = {}
end
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-- Disallow crafting when a certain number of layers is reached or exceeded
if #layers >= max_layers_crafting then
return ItemStack("")
end
-- Lower layer limit when banner includes any gradient.
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-- Workaround to circumvent Minetest bug (https://github.com/minetest/minetest/issues/6210)
-- TODO: Remove this restriction when bug #6210 is fixed.
if #layers >= max_layers_gradient then
for l=1, #layers do
if layers[l].pattern == "gradient" or layers[l].pattern == "gradient_up" then
return ItemStack("")
end
end
end
local matching_pattern
local max_i = player:get_inventory():get_size("craft")
-- Find the matching pattern
for pattern_name, pattern in pairs(patterns) do
-- Shaped / fixed
if pattern.type == nil then
local pattern_ok = true
local inv_i = 1
-- This complex code just iterates through the pattern slots one-by-one and compares them with the pattern
for p=1, #pattern do
local row = pattern[p]
for r=1, #row do
local itemname = old_craft_grid[inv_i]:get_name()
local pitem = row[r]
if (pitem == d and minetest.get_item_group(itemname, "dye") == 0) or (pitem == e and itemname ~= e and inv_i ~= banner_index) then
pattern_ok = false
break
else
end
inv_i = inv_i + 1
if inv_i > max_i then
break
end
end
if inv_i > max_i then
break
end
end
-- Everything matched! We found our pattern!
if pattern_ok then
matching_pattern = pattern_name
break
end
elseif pattern.type == "shapeless" then
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local orig = pattern[1]
local no_mismatches_so_far = true
-- This code compares the craft grid with the required items
for o=1, #orig do
local item_ok = false
for i=1, max_i do
local itemname = old_craft_grid[i]:get_name()
if (orig[o] == e) or -- Empty slot: Always wins
(orig[o] ~= e and orig[o] == itemname) or -- non-empty slot: Exact item match required
(orig[o] == d and minetest.get_item_group(itemname, "dye") == 1) then -- Dye slot
item_ok = true
break
end
end
-- Sorry, item not found. :-(
if not item_ok then
no_mismatches_so_far = false
break
end
end
-- Ladies and Gentlemen, we have a winner!
if no_mismatches_so_far then
matching_pattern = pattern_name
break
end
end
if matching_pattern then
break
end
end
if not matching_pattern then
return ItemStack("")
end
-- Add the new layer and update other metadata
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local color = dye_to_colorid_mapping[dye]
table.insert(layers, {pattern=matching_pattern, color=color})
local imeta = itemstack:get_meta()
imeta:set_string("layers", minetest.serialize(layers))
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local mname = ometa:get_string("name")
-- Only change description if banner does not have a name
if mname == "" then
local odesc = itemstack:get_definition().description
local description = mcl_banners.make_advanced_banner_description(odesc, layers)
imeta:set_string("description", description)
else
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imeta:set_string("description", ometa:get_string("description"))
imeta:set_string("name", mname)
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end
return itemstack
end
minetest.register_craft_predict(function(itemstack, player, old_craft_grid, craft_inv)
return banner_pattern_craft(itemstack, player, old_craft_grid, craft_inv, true)
end)
minetest.register_on_craft(function(itemstack, player, old_craft_grid, craft_inv)
return banner_pattern_craft(itemstack, player, old_craft_grid, craft_inv, false)
end)
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-- Register crafting recipes for all the patterns
for pattern_name, pattern in pairs(patterns) do
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-- Shaped and fixed recipes
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if pattern.type == nil then
for colorid, colortab in pairs(mcl_banners.colors) do
local banner = "mcl_banners:banner_item_"..colortab[1]
local bannered = false
local recipe = {}
for row_id=1, #pattern do
local row = pattern[row_id]
local newrow = {}
for r=1, #row do
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if row[r] == e and not bannered then
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newrow[r] = banner
bannered = true
else
newrow[r] = row[r]
end
end
table.insert(recipe, newrow)
end
minetest.register_craft({
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output = banner,
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recipe = recipe,
})
end
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-- Shapeless recipes
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elseif pattern.type == "shapeless" then
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for colorid, colortab in pairs(mcl_banners.colors) do
local banner = "mcl_banners:banner_item_"..colortab[1]
local orig = pattern[1]
local recipe = {}
for r=1, #orig do
if orig[r] == e then
recipe[r] = banner
else
recipe[r] = orig[r]
end
end
minetest.register_craft({
type = "shapeless",
output = banner,
recipe = recipe,
})
end
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end
end
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-- Register crafting recipe for copying the banner pattern
for colorid, colortab in pairs(mcl_banners.colors) do
local banner = "mcl_banners:banner_item_"..colortab[1]
minetest.register_craft({
type = "shapeless",
output = banner,
recipe = { banner, banner },
})
end