【策划架构】Lua函数表分发：祖玛教主对话指令的一步路由

local function route(actor, key)
    if key == "buy" then
        sendmsg(actor, 1, "商店")
    elseif key == "quest" then
        sendmsg(actor, 1, "任务")
    elseif key == "heal" then
        sendmsg(actor, 1, "治疗")
    end                             -- 每加一项多一层，10层后难维护
end

local ROUTES = {}
local function reg(key, fn) ROUTES[key] = fn end
reg("buy", function(a) sendmsg(a, 1, "祖玛教主商店") end)
reg("quest", function(a) sendmsg(a, 1, "讨伐任务") end)
reg("heal", function(a) sendmsg(a, 1, "免费治疗") end)
local function route(actor, key)
    local fn = ROUTES[key]           -- 哈希直达
    if fn then fn(actor) else sendmsg(actor, 1, "无此指令") end
end
route(actor, "buy")