【性能调优】战斗数据面板：伤害统计的实时聚合

---伤害统计的实时聚合
local dmgAgg = {}
function CombatStats.onDamage(actor, target, dmg)
    local key = actor:GetUserId() .. ":" .. target:GetUserId()
    dmgAgg[key] = (dmgAgg[key] or 0) + dmg
end

function CombatStats.flush()
    local now = os.time()
    if now - (lastFlush or 0) < 3 then return end
    lastFlush = now
    for key, total in pairs(dmgAgg) do
        local from, to = key:match("^(.+):(.+)$")
        sendmsg(getplayerbyname(from), 1, "总伤害 " .. total)
    end
end

---伤害面板的渲染
function CombatPanel.render(dmgBoard)
    local list = GUI:ListView_Create(panel, "dmgList", 10, 10, 200, 300, 1)
    GUI:ListView_removeAllItems(list)
    for i, rec in ipairs(dmgBoard) do
        if i <= 10 then
            local item = GUI:ListView_pushBackDefaultItem(list)
            GUI:Text_Create(item, "dmg" .. i, 5, 5, 12, "#FF6600", i .. ". " .. rec.name .. " " .. rec.total)
        end
    end
end