MineClone2/mods/CORE/mcl_enchanting/engine.lua

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function mcl_enchanting.get_enchantments(itemstack)
return minetest.deserialize(itemstack:get_meta():get_string("mcl_enchanting:enchantments")) or {}
end
function mcl_enchanting.set_enchantments(itemstack, enchantments)
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itemstack:get_meta():set_string("mcl_enchanting:enchantments", minetest.serialize(enchantments))
local itemdef = itemstack:get_definition()
if itemstack:get_name() ~= "mcl_enchanting:book_enchanted" then
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if itemdef.tool_capabilities then
itemstack:get_meta():set_tool_capabilities(itemdef.tool_capabilities)
end
for enchantment, level in pairs(enchantments) do
local enchantment_def = mcl_enchanting.enchantments[enchantment]
if enchantment_def.on_enchant then
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enchantment_def.on_enchant(itemstack, level)
end
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end
end
tt.reload_itemstack_description(itemstack)
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end
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function mcl_enchanting.get_enchantment(itemstack, enchantment)
if itemstack:get_name() == "mcl_enchanting:book_enchanted" then
return 0
end
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return mcl_enchanting.get_enchantments(itemstack)[enchantment] or 0
end
function mcl_enchanting.has_enchantment(itemstack, enchantment)
return mcl_enchanting.get_enchantment(itemstack, enchantment) > 0
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end
function mcl_enchanting.get_enchantment_description(enchantment, level)
local enchantment_def = mcl_enchanting.enchantments[enchantment]
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return enchantment_def.name .. (enchantment_def.max_level == 1 and "" or " " .. mcl_enchanting.roman_numerals.toRoman(level))
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end
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function mcl_enchanting.get_colorized_enchantment_description(enchantment, level)
return minetest.colorize(mcl_enchanting.enchantments[enchantment].curse and "#FC5454" or "#A8A8A8", mcl_enchanting.get_enchantment_description(enchantment, level))
end
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function mcl_enchanting.get_enchanted_itemstring(itemname)
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local def = minetest.registered_items[itemname]
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return def and def._mcl_enchanting_enchanted_tool
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end
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function mcl_enchanting.is_enchanted_def(itemname)
return minetest.get_item_group(itemname, "enchanted") > 0
end
function mcl_enchanting.is_enchanted(itemstack)
return mcl_enchanting.is_enchanted_def(itemstack:get_name())
end
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function mcl_enchanting.item_supports_enchantment(itemname, enchantment, early)
if itemname == "mcl_enchanting:book_enchanted" then
return true, true
end
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if not early and not mcl_enchanting.get_enchanted_itemstring(itemname) then
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return false
end
local enchantment_def = mcl_enchanting.enchantments[enchantment]
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local itemdef = minetest.registered_items[itemname]
if itemdef.type ~= "tool" and enchantment_def.requires_tool then
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return false
end
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for disallow in pairs(enchantment_def.disallow) do
if minetest.get_item_group(itemname, disallow) > 0 then
return false
end
end
for group in pairs(enchantment_def.primary) do
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if minetest.get_item_group(itemname, group) > 0 then
return true, true
end
end
for group in pairs(enchantment_def.secondary) do
if minetest.get_item_group(itemname, group) > 0 then
return true, false
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end
end
return false
end
function mcl_enchanting.can_enchant(itemstack, enchantment, level)
local enchantment_def = mcl_enchanting.enchantments[enchantment]
if not enchantment_def then
return false, "enchantment invalid"
end
local itemname = itemstack:get_name()
if itemname == "" then
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return false, "item missing"
end
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if not mcl_enchanting.item_supports_enchantment(itemstack:get_name(), enchantment) then
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return false, "item not supported"
end
if not level then
return false, "level invalid"
end
if level > enchantment_def.max_level then
return false, "level too high", enchantment_def.max_level
elseif level < 1 then
return false, "level too small", 1
end
local item_enchantments = mcl_enchanting.get_enchantments(itemstack)
local enchantment_level = item_enchantments[enchantment]
if enchantment_level then
return false, "incompatible", mcl_enchanting.get_enchantment_description(enchantment, enchantment_level)
end
if itemname ~= "mcl_enchanting:book_enchanted" then
for incompatible in pairs(enchantment_def.incompatible) do
local incompatible_level = item_enchantments[incompatible]
if incompatible_level then
return false, "incompatible", mcl_enchanting.get_enchantment_description(incompatible, incompatible_level)
end
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end
end
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return true
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end
function mcl_enchanting.enchant(itemstack, enchantment, level)
itemstack:set_name(mcl_enchanting.get_enchanted_itemstring(itemstack:get_name()))
local enchantments = mcl_enchanting.get_enchantments(itemstack)
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enchantments[enchantment] = level
mcl_enchanting.set_enchantments(itemstack, enchantments)
return itemstack
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end
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function mcl_enchanting.combine(itemstack, combine_with)
local itemname = itemstack:get_name()
local combine_name = combine_with:get_name()
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local enchanted_itemname = mcl_enchanting.get_enchanted_itemstring(itemname)
if enchanted_itemname ~= mcl_enchanting.get_enchanted_itemstring(combine_name) and combine_name ~= "mcl_enchanting:book_enchanted" then
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return false
end
local enchantments = mcl_enchanting.get_enchantments(itemstack)
for enchantment, combine_level in pairs(mcl_enchanting.get_enchantments(combine_with)) do
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local enchantment_def = mcl_enchanting.enchantments[enchantment]
local enchantment_level = enchantments[enchantment]
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if enchantment_level then
if enchantment_level == combine_level then
enchantment_level = math.min(enchantment_level + 1, enchantment_def.max_level)
else
enchantment_level = math.max(enchantment_level, combine_level)
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end
elseif mcl_enchanting.item_supports_enchantment(itemname, enchantment) then
local supported = true
for incompatible in pairs(enchantment_def.incompatible) do
if enchantments[incompatible] then
supported = false
break
end
end
if supported then
enchantment_level = combine_level
end
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end
if enchantment_level and enchantment_level > 0 then
enchantments[enchantment] = enchantment_level
end
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end
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local any_enchantment = false
for enchantment, enchantment_level in pairs(enchantments) do
if enchantment_level > 0 then
any_enchantment = true
break
end
end
if any_enchantment then
itemstack:set_name(enchanted_itemname)
end
mcl_enchanting.set_enchantments(itemstack, enchantments)
return true
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end
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function mcl_enchanting.initialize()
local all_groups = {}
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local weighted = {}
local accum_weight = 0
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for enchantment, enchantment_def in pairs(mcl_enchanting.enchantments) do
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accum_weight = accum_weight + enchantment_def.weight
weighted[#weighted + 1] = {enchantment = enchantment, weight = accum_weight}
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for primary in pairs(enchantment_def.primary) do
all_groups[primary] = true
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end
for secondary in pairs(enchantment_def.secondary) do
all_groups[secondary] = true
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end
end
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mcl_enchanting.accumulated_weight = accum_weight
mcl_enchanting.accumulated_weight = weighted
local register_tool_list = {}
local register_item_list = {}
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for itemname, itemdef in pairs(minetest.registered_items) do
if itemdef.groups.enchanted then
break
end
local quick_test = false
for group, groupv in pairs(itemdef.groups) do
if groupv > 0 and all_groups[group] then
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quick_test = true
break
end
end
if quick_test then
if mcl_enchanting.debug then
print(itemname)
end
local expensive_test = false
for enchantment in pairs(mcl_enchanting.enchantments) do
if mcl_enchanting.item_supports_enchantment(itemname, enchantment, true) then
expensive_test = true
if mcl_enchanting.debug then
print("\tSupports " .. enchantment)
else
break
end
end
end
if expensive_test then
local new_name = itemname .. "_enchanted"
minetest.override_item(itemname, {_mcl_enchanting_enchanted_tool = new_name})
local new_def = table.copy(itemdef)
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new_def.inventory_image = itemdef.inventory_image .. "^[colorize:white:50^[colorize:purple:50"
if new_def.wield_image then
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new_def.wield_image = new_def.wield_image .. "^[colorize:white:50^[colorize:purple:50"
end
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new_def.groups.not_in_creative_inventory = 1
new_def.groups.enchanted = 1
new_def.texture = itemdef.texture or itemname:gsub("%:", "_")
new_def._mcl_enchanting_enchanted_tool = new_name
local register_list = register_item_list
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if itemdef.type == "tool" then
register_list = register_tool_list
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end
register_list[":" .. new_name] = new_def
end
end
end
for new_name, new_def in pairs(register_item_list) do
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minetest.register_craftitem(new_name, new_def)
end
for new_name, new_def in pairs(register_tool_list) do
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minetest.register_tool(new_name, new_def)
end
end