【界面UI】技能升级界面：熟练度与升级消耗

---技能升级界面：熟练度与消耗
SkillUI.slots = {}

function SkillUI.show(skillId)
    local info = SkillUI.infoOf(skillId)
    local bar = GUI:LoadingBar_Create(SkillUI.win,
        "prof_" .. skillId, 10, 40)
    GUI:LoadingBar_setType(bar, 0)
    local pct = math.floor(info.prof / info.maxProf * 100)
    GUI:LoadingBar_setPercent(bar, pct)
    local label = GUI:Text_Create(SkillUI.win, "prof_txt",
        10, 70, 12, "#DDDDDD",
        "熟练度 " .. info.prof .. "/" .. info.maxProf)
    SkillUI.renderCost(info)
end

---升级按钮的三态与提交
function SkillUI.renderCost(info)
    local canLevel = info.level < 3 and
        info.prof >= info.maxProf
    local btn = GUI:Button_Create(SkillUI.win,
        "upgrade_" .. skillId, 10, 100)
    GUI:Button_setTitleText(btn,
        canLevel and "升级" or (info.level >= 3 and "已满级" or "熟练度不足"))
    GUI:addOnClickEvent(btn, function()
        if not canLevel then
            SL:ShowSystemTips(info.level >= 3 and
                "已满级" or "熟练度未满，先用技能攒熟练度")
            return
        end
        SL:SendNetMsg(MSGID.SKILL_UP, skillId, 0, 0, "")
    end)
end