【进阶实战】行会技能研究：研发队列的接口封装

local SKILL_TREE = {
    atk = { name = "攻击强化", hours = 72, cost = 5000000 },
    def = { name = "防御强化", hours = 72, cost = 5000000 },
    exp = { name = "经验加成", hours = 48, cost = 3000000 },
}
local research = { skill = nil, startTs = 0 }
local function startResearch(skillId, fundOk)
    if research.skill ~= nil then
        sendmsg(nil, 1, "已有技能在研：" .. SKILL_TREE[research.skill].name)
        return false
    end
    local cfg = SKILL_TREE[skillId]
    if cfg == nil or not fundOk then
        sendmsg(nil, 1, "技能不存在或行会资金不足。")
        return false
    end
    research.skill = skillId
    research.startTs = os.time()
    return true
end
local function checkResearchDone()
    if research.skill == nil then
        return false
    end
    local need = SKILL_TREE[research.skill].hours * 3600
    if os.time() - research.startTs >= need then
        local done = research.skill
        research.skill = nil
        learnGuildSkill(done)
        return done
    end
    return false
end

local guildSkills = { atk = 0, def = 0, exp = 0 }
local function learnGuildSkill(skillId)
    guildSkills[skillId] = guildSkills[skillId] + 1
    sendmsg(nil, 1, "行会技能研发完成：" .. SKILL_TREE[skillId].name)
end