Brand = Buff:New()

--初始化Buff，通过传入一些自定义参数控制成长相关的数值
function Brand:SetData(...)

    self.flag, self.endFunc = ... --标记，结束回调
    self.cover = true
    self.layer = 1
    self.maxLayer = 0
    -- 刷新排序等级
    self.sort = 4
    self.isBuff = true
    self.isDeBuff = false
    --触发函数
    self.TriggerFunc = nil
    
    self.clear = false
    -- debuff：暗杀 诅咒 禁止复活 征服 具体数字涵义查找battledefine
    if self.flag == 8 or self.flag == 10 or self.flag == 12 or self.flag == 5 then
        self.isBuff = false
        self.isDeBuff = true
    end

    --不可驱散 
    if self.flag == 1 or self.flag == 3 or self.flag == 4 or self.flag == 5 or self.flag == 6 or self.flag == 11 or self.flag == 12 then
        self.clear = false
    end

    if self.flag == 2  or self.flag == 10 then
        self.clear = true
    end
end

--初始化后调用一次
function Brand:OnStart()
    if self.startFunc then
        self.startFunc()
        self.startFunc = nil
    end
end

--间隔N帧触发，返回true时表示继续触发，返回false立刻触发OnEnd
function Brand:OnTrigger()
    
    -- if self.TriggerFunc then 
    --     --LogError("trigger brand")
    --     self.TriggerFunc()
    -- end

    return true
end

--效果结束时调用一次
function Brand:OnEnd()
    if self.endFunc then
        self.endFunc()
        self.endFunc = nil
    end
    self.coverFunc = nil
    self.TriggerFunc = nil
end

--只有当cover字段为true时触发，返回true则被新效果覆盖
function Brand:OnCover(newBuff)

    local b = newBuff.flag == self.flag
    if b then
        if newBuff.maxLayer == 0 then
            newBuff.layer = newBuff.layer + self.layer
        else
            newBuff.layer = math.min(newBuff.layer + self.layer, newBuff.maxLayer)
        end
        if newBuff.coverFunc then
            newBuff.coverFunc(self)
        end
    end
    return b
end

-- 比较buff
function Brand:OnCompare(buff)
    return buff.flag == self.flag
end
return Brand