#Rarity system

1 messages · Page 1 of 1 (latest)

novel tiger Sep 6, 2024, 2:13 PM

Can someone help me understand as to why this works, I can't seem to grasp it producing accurate results in all samples.

Script:

local moduleTable = require(script.ModuleScript)

for i=1, 1000 do
print(moduleTable.chooseRarity())
end

print(moduleTable.counter)

ModuleScript:

local module = {}

module.counter = {
["Legendary"] = 0,
["Epic"] = 0,
["Rare"] = 0,
["Common"] = 0

}

module.rarities = { -- 
    ["Legendary"] = 0.5,
    ["Epic"] = 9.5,
    ["Rare"] = 30,
    ["Common"] = 60, 

}

module.chooseRarity = function()


local randomNum = (math.random(1, 1000))*0.1
    print(randomNum)

    local counter = 0    


    for rarity, weight in module.rarities do
        
        counter += weight
        
        print("Rarity is ", rarity)
        
        print("Weight is ", weight)
        
        print("Counter is currently: ", counter)
        
        if randomNum <= counter then
            print(rarity, " Has been decided")
            module.counter[rarity] += 1
            return rarity
        end
    end

end

return module

For example, if the randomNum ends up being 1, wouldn't it just choose out of epic rare or common all as equal chances? Ín that case it removes the possibility of it being legendary, but still..

Yet it always produces results of legendary appearing ~5 times, epic ~95 times, rare ~300 times, ~600 times