【入门夯实】Lua柯里化：沙巴克守城加成的偏函数封装

local function bonus(actor, job, wall, night, base)
    local v = base * (1 + wall * 0.1) * (night and 1.2 or 1)
    setplayvar(actor, job .. "_BONUS", v)
end
-- 12处调用全量传参，签名一改全乱

local function bonusFactory(wall, night)
    return function(actor, job, base)
        local v = math.floor(base * (1 + wall * 0.1)
            * (night and 1.2 or 1))
        setplayvar(actor, job .. "_BONUS", v)
        return v
    end
end
local bonusDay = bonusFactory(3, false)   -- 冻结环境参数
sendmsg(actor, 1, "沙巴克守城加成 "
    .. bonusDay(actor, "战士", 500))