【高级技巧】宠物亲缘：血统关系的联动判定实现

local lineage = {}
local function recordBirth(petId, fatherId, motherId)
    lineage[petId] = { father = fatherId, mother = motherId }
end
local function isSibling(petA, petB)
    local a = lineage[petA]
    local b = lineage[petB]
    if a == nil or b == nil then
        return false
    end
    if a.father == b.father and a.mother == b.mother then
        return true
    end
    return false
end
local function kinBonus(petA, petB)
    if isSibling(petA, petB) then
        return { atk = 8, def = 5 }
    end
    return { atk = 0, def = 0 }
end

local bonus = kinBonus("宠物001", "宠物002")
print("攻击加成 " .. bonus.atk .. "% 防御加成 " .. bonus.def .. "%")