test-all/lua-test/lua/module/SeedRandom.lua

--- 种子随机数
--- Generated by EmmyLua(https://github.com/EmmyLua)
--- Created by 無心道(15388152619).
--- DateTime: 2025/2/27 09:43


SeedRandom = {}
SeedRandom.__index = SeedRandom

--- 创建一个事件监听容器
function SeedRandom.new(seed)
    local var = setmetatable({}, SeedRandom)
    var.oldSeed = seed or os.time() ^ 999999999
    var.addSeed = 0
    return var
end

function SeedRandom:refreshSeed()
    self.addSeed = self.addSeed + 1
    self.oldSeed = (self.oldSeed * 9301 + self.addSeed) & 233280;
end

function SeedRandom:nextInt(min, max)
    if (max <= min) then
        return min;
    end

    local tmp = max - min;
    local next00 = self:next();

    return math.floor(min + math.floor(tmp * next00));
end

function SeedRandom:nextFloat(min, max)
    if (max <= min) then
        return min;
    end
    local tmp = max - min;
    local next00 = self:next();
    return min + tmp * next00;
end

function SeedRandom:next()
    self:refreshSeed();
    local v = self.oldSeed / 233280.0;
    if (v < 0) then
        v = 0;
    end
    if (v > 1) then
        v = 1;
    end
    return v;
end

function SeedRandom.onInit()
    print("lua SeedRandom.onInit")
    local seedRandom = SeedRandom.new(9527003456)
    for i = 1, 10 do
        print(i, seedRandom:nextInt(1, 1000))
    end
end