【玩法策划】绑定价差：绑定与非绑定装备的双轨市场设计

-- 双轨市场：绑定币定价
local player = class(actor)
local BIND_RATIO = 0.4
local function bindMarketPrice(player, itemName)
    local freePrice = tonumber(getsysvar("MktPrice_" .. itemName) or 0)
    local bindPrice = math.floor(freePrice * BIND_RATIO / 100) * 100
    if bindPrice <= 0 then
        sendmsg(player, 1, 0, "该装备暂未开放绑定市场流通。")
        return 0
    end
    sendmsg(player, 1, 0, itemName .. " 绑定市场参考价：" .. bindPrice .. " 绑定币。")
    return bindPrice
end

-- 价差防线：套利监控
local player = class(actor)
local function watchArbitrage(player, itemName)
    local free = tonumber(getsysvar("MktPrice_" .. itemName) or 0)
    local bind = tonumber(getsysvar("BindMkt_" .. itemName) or 0)
    if free == 0 or bind == 0 then return end
    local leak = bind / (free * 0.4)
    if leak > 0.7 then
        sendcentermsg(player, 255, 0, itemName .. " 双轨价差异常，经济组已介入校准。", 0, 6)
        setsysvarex("BindRatio_" .. itemName, 0.3, true)
    end
end