【框架设计】装备继承：强化等级转移与材料折损

---继承：旧装备强化等级折损转移
local INHERIT_LOSS = 2       -- 转移折损 2 级
local INHERIT_FEE = 100000   -- 手续费 10 万金币

function Inherit.run(actor, oldIdx, newIdx)
    local oldLv = Inherit.upgradeOf(actor, oldIdx)
    if oldLv <= 0 then
        sendmsg(actor, 1, "该装备没有可继承的强化等级")
        return false
    end
    local newLv = Inherit.upgradeOf(actor, newIdx)
    if oldLv - INHERIT_LOSS <= newLv then
        sendmsg(actor, 1, "继承后等级不高于现有强化，无需继承")
        return false
    end
    if not Inherit.takeGold(actor, INHERIT_FEE) then
        sendmsg(actor, 1, "金币不足，手续费 " .. INHERIT_FEE)
        return false
    end
    Inherit.apply(actor, newIdx, oldLv - INHERIT_LOSS)
    delitembymakeindex(actor, oldIdx)
    sendmsg(actor, 1, "继承完成：新装备强化 +" .. (oldLv - INHERIT_LOSS))
    return true
end

---继承的前置校验：同部位同档位
function Inherit.check(actor, oldIdx, newIdx)
    local oldDef = Inherit.defOf(actor, oldIdx)
    local newDef = Inherit.defOf(actor, newIdx)
    if oldDef.slot ~= newDef.slot then
        return false, "部位不同，无法继承"
    end
    if newDef.tier < oldDef.tier then
        return false, "目标装备档位不得低于原装备"
    end
    local bind = checkitemstate(Inherit.itemOf(actor, oldIdx), 1)
    if bind == 1 then
        sendmsg(actor, 1, "继承后新装备将转为绑定")
    end
    return true
end